PG-ThermExpansion

Watts Thermal Expansion Products

w w w. w a t t s r e g . c o m

GENERAL INFORMATION

Table of Contents General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 – 3 Potable Hot Water System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Series DET Potable water expansion tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Series PLT Potable water expansion tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Series ILT In-line potable water expansion tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Series DETA ASME pressurized potable water expansion tanks . . . . . . . . . . . . . . . . . . . . . . .8 Series BRV Combination ball valve and relief valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Series Governor 80-M1 Ball cock and thermal expansion relief valve . . . . . . . . . . . . . . . . .10 Series 530C Calibrated pressure relief valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Series H32 Hose connection pressure relief valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Series 276H300/IWTG Water pressure test gauges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Series SCV Service check valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Non-Potable Hot Water System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Series ET Non-potable water expansion tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Series ET-ASF Combination packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Series HP Boiler trim-out packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Series HP Bronze Boiler trim-out packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Series ETX, ETSX pressurized expansion tanks for heating and cooling systems . . . . . . . .16 Series ETA ASME pressurized non-potable water expansion tanks . . . . . . . . . . . . . . . . . . .18 Series ET-RA ASME pressurized non-potable water expansion tanks . . . . . . . . . . . . . . . . .19

Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. Watts reserves the right to change or modify product design, construction, specifications, or materials without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.

GENERAL INFORMATION

General Information What is Thermal Expansion? When water is heated it expands. For example, water heated from 90ºF (32ºC) to a thermostat setting of 140ºF (60ºC) in a 40 gallon hot water heater will expand by almost one-half gallon. This is because when water is heated, its density decreases and its volume expands (see fig. 1). Since water is not compressible, the extra volume created by expansion must go someplace. During no-flow periods in a system, pressure reducing valves, backflow preventers, and other one-way valves are closed, thus eliminating a path for expanded water to flow back to the system supply. Hence, system pressure increases. figure 1

water

140°F (60°C)

70°F (21°C)

Extra volume of water created by thermal expansion has to go somewhere

180°F (82°C)

Temperature vs Density Thermal expansion of water in a closed plumbing system can create a number of annoying and potentially dangerous problems. These include: the build up of unusually high pressure in a system (even when a pressure reducing valve is installed); pressure surges; and the chronic or continuous dripping of a temperature and pressure (T&P) relief valve. In addition, dripping faucets and leaking toilet tank ball cock fill valves are also symptomatic of thermal expansion. More serious problems can also occur due to thermal expansion. When dangerous pressures are built up in a water heater, internal parts may fail such as the internal flues, fittings or water connections. If a flue way collapses it can lead to the potential release of toxic gases, such as carbon monoxide into living spaces. Thermal expansion can also lead to a ruptured or distorted hot water heating tank and may void the manufacturer’s warranty (see fig.2).

Hot to System

figure 2

Cold

Hot to System

Cold Distorted water heater may void manufacturer’s warranty.

Installation of a Watts expansion tank will protect the water heater.

Plumbing codes require you to address this safety problem. No matter what your thermal expansion problem may be, whether for new construction or for retrofitting or remodeling an existing system, Watts offers cost effective solutions for you as outlined in the following pages of this guide. Should you require more detailed information on these products, please feel free to call your local Watts representative, listed on the back of this guide.

1

GENERAL INFORMATION

Plumbing Code Requirements Thermal Expansion Control Plumbing codes require that thermal expansion control be addressed in plumbing systems. A temperature and pressure relief valve is not considered a thermal expansion device. This is because when water is allowed to continuously drip from the T&P relief valve, minerals from the water can build up on the valve, eventually blocking it. This blockage can render the T&P valve useless and potentially lead to hot water heater explosions. The International Plumbing Code (IPC), Uniform Plumbing Code (UPC) and Standard Plumbing Code all require thermal expansion control to be addressed.

Expansion Tank Construction Section VIII of the ASME Boiler and Pressure Vessel Code states certain requirements that must be met by an expansion tank for it to meet ASME construction specifications. The Watts Series ETA, ET-RA and DETA tanks all meet these ASME requirements.

Potable vs Non-Potable Systems Potable refers to water in an open domestic hot water heating system. This is water that could potentially be consumed by people and is not recirculated within the system. Non-potable refers to water in a closed hydronic heating, radiant floor heating, or a chilled water system where the water is recirculated and does not leave the system. Each of these hot water heating systems have different thermal expansion requirements explained in more depth in the following pages of this guide.

Water Containment vs Water Relief Solutions Water Containment solutions allow for thermal expansion while containing thermally expanded water in the plumbing system. The Watts full line of thermal expansion tanks are considered water containment devices. These products require no installation of discharge lines or drains. Water Relief solutions discharge thermally expanded water at a pressure setting that is below the setting of the water heater’s temperature and pressure relief valve. Watts offers a variety of water relief solutions that can be installed on the system piping, in a water closet or on an outside faucet. These products must be piped to a suitable drain or discharge location.

2

GENERAL INFORMATION

Expansion Tanks How a Diaphragm Expansion Tank Works When water is heated in a closed system it expands. Water is not compressible, therefore, the additional water volume created has to go someplace. When an expansion tank is installed the excess water enters the pre-pressurized tank (figure 3). As the temperature and pressure reaches its maximum, the diaphragm flexes against an air cushion (air is compressible) to allow for increased water expansion (figure 4). When the system is opened again or the water cools, the water leaves the tank and returns to the system. figure 3 - How Expansion Tanks work

figure 4 water

water diaphragm

diaphragm

As the water temperature increases, the expanded water is received by the tank.

As the temperature and pressure reaches its maximum, the diaphragm flexes against the air cushion (air is compressible) to allow for increased water expansion.

Note: Expansion tanks are always located on the cold water piping to the water heater or heating system.

Selecting an Expansion Tank To properly select the correct expansion tank for a system you can either use the selection guide tables which are placed near each tank series throughout this product guide (see figure 5) or use a formula to determine the tank volume and acceptance volume requirements. When using a formula it is necessary to know the water heater capacity, the water supply pressure, the starting and ending water temperatures and the maximum pressure setting of the relief valve. figure 5

Note: Expansion based on 50°F (10°C) temperature rise. WATER HEATER SUPPLY Gallons (Liters) PRESSURE psi bars 20 (76) 30 (114) 40 (152) 50 (190) 80 (304) 100 (380) 120 (456) 40 2.7 50

3

55

3.7

60

4

70

4.8

80

5.5

90

6

Tank A

100

6.9

Tank B

110

7.5

Tank C

120

8.2

Multiple tanks required

To select the correct expansion tank, using the selection guides in this product guide, choose the supply pressure (for pressures between those shown, use next highest supply pressure), read across the chart to the correct tank as indicated by the water heater capacity. For capacities between those shown, use next highest capacity. To accommodate the thermal expansion required for higher temperature and/or higher pressure systems, multiple tanks may be used. Please contact your local authorized Watts representative for assistance in sizing expansion tanks for specific applications requiring multiple tanks.

Other Potable Water Thermal Expansion Solutions Watts offers several other options for pressure relief besides expansion tanks. These products do not prevent against loss of water, like an expansion tank, but they do limit high pressure and prevent the annoying problems associated with thermal expansion. These products include the: Governor 80 combination toilet tank ball cock fill valve and thermal expansion relief valve; the 530C calibrated pressure relief valve; the BRV combination ball valve and relief valve and the H32 hose connection pressure relief valve. These products are described in more detail in the following pages of this product guide. Series BRV

3

POTABLE

Control Thermal Expansion in Hot Water Supply Systems Thermal expansion of heated water may occur wherever potable water is heated in a closed system (when the potable water is isolated from the public water supply by a one-way valve, such as a pressure reducing valve, backflow preventer or check valve). Watts potable water expansion tanks are designed to absorb the increased volume of water created by thermal expansion and to maintain a balanced pressure throughout the potable water supply system. They are used to prevent plumbing system and/or water heater damage and unnecessary relief valve discharge caused by excessive pressure from thermal expansion.

WATTS Vacuum Relief Valve

Hot water to dishwasher and washing machine

Tempered Water to Fixtures† WATTS Temperature Gauge

WATTS Ball Valves

WATTS DET/PET Water Expansion Tank WATTS T&P Relief Valve

WATTS Tempering Valve†

WATTS Pressure Gauge WATTS Water Heater Straps Water Heater

WATTS Water Pressure Reducing Valve

WATTS Backflow Preventer WATTS Water Heater Stand Water Meter

WATTS Shut-off Valve Water Supply

WATTS Floor Drain

†ASSE 1016 – Listed valves such as the Watts L111, MMV or USG should be used at point-of-delivery.

4

POTABLE

Series DET Potable Water Expansion Tanks for Water Heaters and Hot Water Supply Systems

Models DET-5-M1, DET-12-M1, DET-20-M1 and DET-35-M1 Series DET potable water expansion tanks are designed to absorb the increased volume of water created when the hot water storage tank is heated and to keep the system pressure below the relief setting of the T&P relief valve. It is a pre-pressurized steel tank with an expansion membrane that prevents contact of the water with the air in the tank. This prevents loss of air to the water and ensures long and trouble-free life for the system. These tanks may be used with all types of direct fired water heaters (gas, oil or electric) and hot water storage tanks. Standards: DET-5-M1, DET-12-M1, DET-20-M1, and DET-35-M1 are Listed by IAPMO.

Features

NSF

R

• Rugged flexible butyl diaphragm • Field adjustable pre-charge • In-line and free standing models

Selection Guide

• Can be used with most standard water heaters and storage tanks

WATER HEATER Gallons (Liters)

SUPPLY PRESSURE

• Made in U.S.A.

Specifications The potable water expansion tank shall be of drawn steel construction. It shall have a butyl diaphragm separating the air chamber from the water containing chamber. Inlet connector shall be brass model (DET-35-M1: stainless steel). Materials of manufacture for the diaphragm shall be FDA approved. The potable water expansion tank shall be a Watts Model DET__(5, 12, 20, 35)-M1. Note: Watts Series DET-M1 potable water expansion tanks shall be installed on the cold water service pipe line on the supply side of the water heater or water storage tank.

psi

bars 20 (76) 30 (114) 40 (152) 50 (190) 80 (304) 100 (380) 120 (456)

40

2.7

50

3

55

3.7

60

4

70

4.8

80

5.5

90

6

100

6.9

110

7.5

120

8.2

DET-5-MI DET-20-M1 DET-12-M1 DET-35-M1 Multiple tanks required - consult authorized Watts agent This table is based upon a relief valve setting of 150psi (10 bars), a maximum of 40°F (4°C) temperature rise, and a 40psi (2.7 bars) precharge.* *It is recommended that tanks be precharged to supply pressure (up to 80psi (5.5 bars)). Equalizing precharge pressure to supply pressure increases the application range over those shown in the table.

For additional information, request literature ES-DET.

Model

Connection Size (DN)

DET-5-M1 DET-12-M1 DET-20-M1 DET-35-M1

34

in.

⁄ M 3⁄4 M 3⁄4 M 1M

Max Pressure

Max Temp.

Tank Volume

Tank Acceptance

Air Pre-charge

Dia.

mm

psi

bars

°F

°C

Gal.

Liters

Gal.

Liters

psi

bars

in.

20 20 20 20

150 150 150 150

10 10 10 10

200 200 200 200

93 93 93 93

2.1 4.5 8.5 14

8 17 32 53

.85 1.8 3.2 5.6

3 8 12 21

40 40 40 40

217 217 217 217

81⁄2 10 121⁄2 16

mm

Length in.

216 111⁄2 254 15 318 1913⁄16 407 2111⁄16

Weight

mm

lbs.

kgs.

293 381 488 552

7 10 15 32

3.2 4.6 6.8 14.6

5

POTABLE

Series PLT Potable Water Expansion Tanks

Models PLT-5 and PLT-12 Series PLT Potable Water Expansion Tanks are designed to absorb thermal expansion and to maintain balanced pressure throughout the potable water supply system. Heated water expands, and in a domestic hot water system the system may be closed when isolated from the public water supply by a one-way valve, pressure reducing valve, backflow preventer, check valve, etc. Provisions must be made for this expansion. Series PLT expansion tanks absorb the increased volume of water created when the hot water storage tank is heated and keeps the system pressure below the relief setting of the T&P relief valve. It is a pre-pressurized steel tank with an expansion membrane that prevents contact of the water with the air in the tank. This prevents loss of air to the water and ensures long and trouble-free life for the system. These tanks may be used with all types of Direct Fired Hot Water Heaters (gas, oil or electric) and hot water storage tanks.

Model PLT-5

Model PLT-12

Standards: PLT-5 and PLT-12 are Listed by IAPMO.

NSF

R

Certified to ANSI/NSF61

Features

Selection Guide

• Polypropylene liner WATER HEATER Gallons (Liters)

• Rugged flexible butyl diaphragm

SUPPLY PRESSURE

• Field adjustable pre-charge

psi

bars 20 (76) 30 (114) 40 (152) 50 (190) 80 (304) 100 (380) 120 (456)

• Can be used with most standard water heaters and storage tanks

40

2.7

50

3

• Made in Taiwan

55

3.7

Specifications The potable water expansion tank shall be of drawn steel construction and include a rigid polypropylene reservoir liner. It shall have a butyl diaphragm separating the air chamber from the water containing chamber. Inlet connector shall be stainless steel lined. Materials of manufacture for the liner and diaphragm shall be FDA approved. The potable water expansion tank shall be a Watts Regulator Company Series PLT.

60

4

70

4.8

80

5.5

90

6

100

6.9

110

7.5

120

8.2

PLT-5 PLT-12 Multiple tanks required - consult factory This table is based upon a relief valve setting of 150psi (10 bars), a maximum of 40°F (4°C) temperature rise, and a 40psi (2.7 bars) precharge.* *It is recommended that tanks be precharged to supply pressure (up to 80psi (5.5 bars)). Equalizing precharge pressure to supply pressure increases the application range over those shown in the table.

For additional information, request literature ES-PLT.

Model

Connection Size (DN) in.

Max. Pressure

Max. Temp.

Tank Volume

Tank Acceptance

Air Pre-charge

Diameter

liters

gal.

liters

psi

bars

in.

mm

mm

psi

bars

˚F

˚C

gal.

PLT-5

34

20

150

10

200

93

2.1

8

1.26

4.8

40

217

8

PLT-12

34

20

150

10

200

82

4.5

17

2.8

10.6

40

217

101/2

6

⁄ M ⁄ M

Length

Weight

in.

mm

lbs.

kgs.

203

11

279

5.5

2.5

267

131/2

343

10

4.5

POTABLE

Series ILT In-Line Potable Water Expansion Tanks

Models ILT-5 and ILT-12

Model ILT-12

Series ILT in-line potable water expansion tanks are designed to absorb the increased volume of water created when the hot water storage tank is heated and keeps the system pressure below the relief valve setting of the T&P relief valve. It is a pre-pressurized steel tank with an expansion membrane that prevents contact of the water with the air in the tank. This prevents loss of air to the water and ensures long and trouble-free life for the system. The ILT’s flow-through design provides safer and healthier drinking water by virtually eliminating stagnant water in the plumbing system that can promote microbial growth. The ILT features a compact design that allows it to be installed where other expansion tanks cannot. These tanks maybe used with all types of direct fired hot water heaters (gas, oil or electric) and hot water storage tanks.

Model ILT-5

Patent # 6,418,969

Standards: Models ILT-5 and ILT-12 Listed by IAPMO.

Features AIR CHAMBER

• Flow through design virtually eliminates microbial growth

WATER

• Rugged flexible butyl diaphragm

AIR CHAMBER

• Field adjustable pre-charge • Can be used with most standard hot water heaters and storage tanks • Available with threaded, solder or PEX end connections.

Selection Guide WATER HEATER Gallons (Liters)

SUPPLY PRESSURE

• Made in U.S.A.

Specifications The potable water expansion tank shall be of steel construction. It shall be of flow through design. It shall have a butyl diaphragm separating the air chamber from the water containing chamber. Inlet and outlet connectors shall be union thread/sweat or PEX. Materials of manufacture for diaphragm shall be FDA approved. The potable water expansion tank shall be a Watts Model ILT__(5,12).

psi

bars 20 (76) 30 (114) 40 (152) 50 (190) 60 (228) 70 (266) 80 (304) 100 (380) 120 (456)

40

2.7

50

3

55

3.7

60

4

70

4.8

80

5.5

90

6

100

6.9

ILT-5 ILT-12 Multiple tanks required - consult authorized Watts agent This table is based upon a relief valve setting of 150psi (10 bars), a maximum of 40°F (4°C) temperature rise, and a 40psi (2.7 bars) precharge.*

For additional information, request literature F-ILT.

Model

Size (DN) in.

ILT-5 ILT-12

34

⁄ F 3⁄4 F

Connection Pressure

*It is recommended that tanks be precharged to supply pressure (up to 80psi (5.5 bars)). Equalizing precharge pressure to supply pressure increases the application range over those shown in the table.

Max Temp.

Max Volume

Tank Acceptance

Tank Pre-charge

Air Dia.

Length

mm

psi

bars

°F

°C

Gal.

Liters

Gal.

Liters

psi

bars

in.

mm

in.

20 20

150 150

10 10

160 160

71 71

1.20 1.93

4.5 7.3

1.15 1.85

4.3 7

40 40

2.7 2.7

4 4

101.6 101.6

31 46

mm

Weight lbs.

787.4 91⁄2 1168.4 131⁄2

kgs.

4.3 6.1

7

POTABLE POTABLE — ASME

Series DETA ASME Pressurized Expansion Tanks for Potable Hot Water

Models DETA 5 – DETA 210 Series DETA tanks are ASME fixed bladder type precharged expansion tanks for commercial and industrial fresh potable hot water applications. They are designed to accept the expanded volume of hot water keeping the system pressure below the relief valve setting. The water is contained in a butyl bladder. Maximum Design Pressure: DETA 5 – DETA 210: 150psi (10 bars) Precharged to 40psi (2.7 bars) Maximum Design Temperature: 240°F (115°C)

Features

Charging Valve

System Connection

• ASME Section VIII construction

System Connection

Lift Ring

• Fixed butyl bladder (FDA approved)

Charging Valve

• Stainless steel system connection • Precharged to 40psi (2.7 bars) (field adjustable)

O.A.H.

• Shell: carbon steel

Dia.

• System connection: stainless steel O.A.H.

• Bladder: butyl (FDA approved) • Primer coated exterior

Dia. DETA 5 and DETA 12

Specifications Furnish and install as shown on plans a Watts Model DETA ____ gallon ____ " diameter x ____" (high) pre-charged steel thermal expansion tank with a fixed butyl bladder. The tank shall have a top NPT stainless steel system connection and a .302" – 32" (7.6 – 812.8mm) charging valve connection (standard tire valve) to facilitate the on-site charging of the tank to meet system requirements. The tank must be constructed in accordance with Section VIII of the ASME Boiler and Pressure Vessel Code.

C DETA 20 – DETA 210

For additional information, request literature ES-DETA. Model

System Connection (DN) in.

mm

Tank Volume Gallons

3⁄4 DETA 5 20 3.5 3⁄4 DETA 12 20 5 3⁄4 DETA 20 20 8 DETA 30 1 25 15 DETA 42 1 25 22 DETA 60 1 25 26 DETA 80 1 25 35 DETA 100 1 25 45 DETA 125 1 25 60 DETA 160 11⁄2 40 70 DETA 180 11⁄2 40 80 DETA 210 11⁄2 40 90 Lift ring on models DETA 42 – DETA 210.

8

Acceptance Volume

Max. Operating Pressure

Dimensions (approx.) Dia.

Weight

Height

C

Liters

Gallons

Liters

psig

bars

in.

mm

in.

mm

in.

mm

lbs.

kgs.

13 19 30 57 84 99 133 171 228 266 304 342

2.1 3.1 3.1 10.5 15.5 15.5 15.5 21 21 52.5 52.5 52.5

8 11.7 11.7 40 59 59 59 80 80 199.5 199.5 199.5

150 150 150 150 150 150 150 150 150 150 150 150

10 10 10 10 10 10 10 10 10 10 10 10

10 12 12 16 16 16 16 20 20 24 24 24

254 305 305 406 406 406 406 508 508 610 610 610

14 14 20 33 32 34 45 38 49 46 49 52

356 356 508 838 813 864 1143 965 1245 1676 1168 1321

– – 10 12 14 14 14 18 18 22 22 22

– – 254 305 356 356 356 457 457 559 559 559

22 28 34 64 88 93 109 148 175 259 268 283

10 13 15 29 40 42 49 67 79 117 122 128

POTABLE POTABLE — ASME

Series BRV

BRVT

Combination Ball Valve and Relief Valve Series BRV combination ball valve and relief valve provides a unique and low cost solution for thermal expansion relief in domestic water heating systems, using a rugged ball valve design. The small and compact BRV facilitates relief of thermal expansion and provides a tight shutoff valve for the supply to the water heater.

BRVP

Features

BRVPxTxP

• Easy installation - Installs in any position • Low profile design • Full port ball valve with virgin PTFE seats • Blowout proof stem • Stainless steel spring/Viton® ball relief valve components • Secure compression or PEX end fitting drain tube connection

Typical Installation Specifications Water heater shutoff valve shall include built-in relief protection from water pressure in excess of __(80, 100, 125 psi). Each valve shall be full port construction, bronze ASTM B-584 body, electroless nickel plated ASTM B-16 or B-124 brass ball, blowout proof ASTM B-16 brass stem, virgin PTFE seats, PTFE stem packing and stem thrust bearing, Viton® relief ball and 302 stainless steel relief spring. Valves shall include 3⁄8" (10mm) brass compression or PEX connection for drain line. Valve shall be IAPMO listed. Valve shall be a Watts Regulator Company Series BRV. Maximum temperature: 210°F (90°C) Maximum pressure: valve body rated to 400psi (28 bar)

Ball Valve

Watts T&P Relief Valve

Watts Vacuum Relief Valve Relief Valve

Hot to system

Watts Tempering Valve

Drain Tube

For additional information, request literature ES-BRV.

Available Models

Watts Test Plug and Gauge

Inlet

Outlet

Relief Outlet

Sweat Thread PEX PEX PEX PEX PEX Thread Sweat

Sweat Thread PEX Thread Thread Sweat Sweat PEX PEX

Compression Compression Compression Compression PEX Compression PEX Compression Compression

Watts Water Heater Straps

Watts Backflow Preventer Watts Shutoff Water Meter

Watts Water Heater Stand

Cold Watts Water Pressure Reducing Valve

Available Pressure Settings: 80, 100, 125psi

Viton® is a registered trademark of DuPont Dow Elastomer

9

POTABLE POTABLE

Governor 80-M1 Ball Cock and Thermal Expansion Relief Valve The Governor 80-M1 is a unique product that solves three plumbing problems at once and offers the most cost effective way to ensure code compliance for domestic water systems

Toilet Tank Ball Cock Fill Valve The Governor 80-M1 is a toilet tank ball cock fill valve that incorporates the simplest “full flow” ball cock principle available, assuring built in reliability. Its large, non-clogging flow way promotes quiet operation and snap action shutoff under a wide range of pressures. The Governor 80-M1’s construction uses PVC and Celcon® to make it completely non-electrolytic and non-corrosive.

Patent #4,745,945

Cap Ring

Thermal Expansion/Pressure Relief Valve The Governor 80-M1 gets its name from its ability to govern or limit the domestic water system’s preset pressure to 80psi (5.5 bars) as required by code. It protects the primary safety valve on the water heater (the temperature and pressure relief valve) from unnecessary blow-off or discharge, which can cause potentially dangerous problems and costly water damage. The Governor 80-M1 discharges any extra volume of water generated by thermal expansion into the water closet, eliminating the need for the installation of more expensive expansion tanks and auxiliary relief valves and their discharge lines.

Anti-Siphon Backflow Preventer The Governor 80-M1 is also an anti-siphon backflow preventer and protects against backflow from water closets, a serious cross connection. This added protection ensures that water from the water closet will not contaminate the potable water supply.

Float Rod

Thermal Expansion Relief Valve 10" (254mm), 111⁄2" (292mm) or 121⁄2" (317mm)

Refill Tube

Features Black Rubber Gasket • Limits and governs the domestic water system’s preset static pressure to 80psi (5.5 bars) as required by code

Lock Nut

• Protects the Temperature and Pressure Relief Valve on the water heater from unnecessary relief discharge, reserving it for true emergencies • Reduces the need to use a more expensive thermal expansion tank or auxiliary relief valve which require a drain line • Prevents backflow from water closets, a serious cross connection • ASSE 1002 certified and meets IAPMO and CSA requireents for anti-siphon ball cocks TYPICAL WATER CLOSET

Water Supply Coupling Nut

Specifications The Watts Governor 80-M1 is tested and certified under ASSE Standard 1002 and meets IAPMO, and CSA requirements for anti-siphon ball cocks. All materials in contact with water are FDA approved under DVR-21-177-2600. The thermal expansion relief valve is standardly set at 80psi (5.5 bars) to meet existing codes and is non-adjustable. Standard lengths are: 10", 111⁄2" or 121⁄2" (254, 292 or 317mm).

“WATTS® Governor 80-M1”

Ordering Information

“W.O.L.”

“C.L.” 1"

Float Ball Thermal Expansion Relief Valve

Overflow Tube

“C.L.” (Critical level established) “W.O.L.” (Water overflow level) 10

Celcon® is a registered trademark of Celanese, Limited.

Model Gov. 80-M1-10 Gov. 80-M1-11.5 Gov. 80-M1-12.5

IAPMO listed

Size (DN) in.

mm

10 111⁄2 121⁄2

254 292 317

B125

1002

For additional information, request literature S-GOV80.

POTABLE

Series 530C

Manually adjustable

Calibrated Pressure Relief Valves Series 530C are spring operated bronze relief valves designed to be used only as protection from the build up of excessive pressure in systems containing water, oil or air. Series 530C are not ASME approved safety relief valves and should not be used in system applications with this requirement. Series 530C incorporates a calibrated adjustment feature for manually setting the valve to the relief pressure required.

Typical Installation

Features

Hot

• Calibrated adjustment feature for setting valve to relief pressure required

Cold

• Adjustable range 50 – 175psi (3.45 – 12.06 bars) • All bronze construction Water Heater

• All stainless steel springs • Buna-N disc on machined body seat

Slop sink or drain

Specifications 12

Watts auxiliary thermal expansion pressure relief valve Series 530C

Cold Supply

34

Sizes ⁄ " and ⁄ " (15 & 20mm). Inlet (bottom) male threaded, NPT. Outlet (side), female threaded, NPT.

Auxiliary relief valve can be installed on either hot or cold piping

One-way Flow Device

Model 530C 530C

Size (DN)

Height

Width

Weight

in.

mm

in.

mm

in.

mm

lbs.

gm.

12

15 20

3 3

76 76

15⁄8" 15⁄8"

41 41

.63 .63

286 286

⁄ 3⁄4

For additional information, request literature ES-530C.

Series H32 Hose Connection Pressure Relief Valve

Typical Installation

The H32 hose connection pressure relief valve, set at 80psi (5.5 bars) or 100psi (6.8 bars), has a 3⁄4" (20mm) hose connection inlet for ease of installation. The H32 should only be used in areas where the outside temperature does not fall below freezing year round.

Model H32-100 H32-80

Size (DN) in.

mm

34

20 20

⁄ ⁄

34

Model H32

11

DETECTION AND SERVICING SOLUTIONS

Series 276H300, IWTG

(A)

Water Pressure Test Gauge

(B)

Ideal to accurately determine system pressure in a building. The 3⁄4" (20mm) hose connection easily attaches to a hose bibb or the drain connection on a water heater. A red indicator hand holds at the highest reading registered. When left on overnight, it will register the highest pressure in the system during that period. (A) 34

⁄ " (20mm) H.T. Hose Connection which easily attaches to an outside hose bibb or to the drain connection on a water heater.

(B) Series 276H300

A Red indicator hand that “HOLDS” at the highest reading registered, to record shock pressure or when left on overnight will register the highest surge pressure which occurred during that period.

(C)

Model

(C)

Size (DN)

12

Features a large (2 ⁄ " (65mm)) face for easy reading. 276H300 IWTG

in.

mm

34

20 20

⁄ 3⁄4

Range psi

bars

0 – 300 0 – 21 0 – 200 0 – 14

Series SCV Service Check Valves Series SCV service check valves facilitate the servicing of components in systems under pressure. They install between the system and the component. As the component is threaded into the Service Check Valve, the spring loaded valve opens to system pressure. As the component is removed, the valve closes, maintaining system integrity while the component is being inspected. This prevents having to drain the entire system each time a component is serviced.

Available in sizes ⁄ ", 1⁄4", 3⁄8", 1⁄2" and 3⁄4" (3.2, 6.3, 9.5, 12.7, 20mm) inches. Max. Temperature: 240°F (115°C), Max. Pressure: 150psi (10 bars) 18

Typical Installation System Open

Model. SCV SCV SCV SCV SCV

System Closed

Size (DN) in.

mm

18

3.2 6.4 9.5 12.7 20

⁄ 1⁄4 3⁄8 1⁄2 3⁄4

Note: This device is not to be used on safety relief valves or other safety or flow sensitive components. Important: System pressure must be reduced prior to removing system component.

System Component

12

NON-POTABLE

Control Thermal Expansion in Hot Water Heating Systems

18

†

17

7

Hot

9

Cold to Fixtures

Thermal expansion of heated water may occur wherever water is heated in a closed system (when the boiler water is isolated from the public water supply by a one-way valve, such as a feed water pressure reducing valve, backflow preventer, check valve, etc.). Watts non-potable water expansion tanks are designed to absorb the increased volume of water caused by thermal expansion and maintain a balanced pressure throughout the hot water heating system. They are used to prevent system damage and unnecessary relief valve discharge caused by excessive pressure from thermal expansion.

†

16 7

14

19 1

6

10

4

2

15

Return

20

Return

13

12 11 11 15 8 21

5

15 15

4a 3

1 2 3 4 4a 5 6 7 8 9 10

Air Scoop Backflow Preventer Boiler Drain Valve Boiler Fill Valves Combination Fill Valve and Backflow Preventer Bronze Check Valve Expansion Tank Flow Checks Flow Control Valve Gate or Globe Valves Mixing Valves

† †

11 12 13 14 15 16 17 18 19 20 21

Purge Valves Pressure Relief Valves Hot Water Boiler Safety Relief Valve T&P Test Plug Ball Valve Float Vent Valve Automatic Float Vent Valve Water Pressure Reducing Valve 1⁄8" (3mm) or 1⁄4" (8mm) Service Check Valves 1⁄2" (15mm) Service Check Valve Combination Temperature & Pressure Gauge

† Choose one item #16 or #17

13

NON-POTABLE Features

Series ET

• • • •

Steel construction Rugged flexible diaphragm Precharged at 12psi (82 kpa) Compact size saves space and energy • Compatible with glycol in systems

Non-Potable Water Expansion Tanks for Hot Water Heating Boilers and Systems

Models ET-15, ET-30, ET-60, ET-90 Series ET nonpotable water expansion tanks are designed to absorb the increased volume of water created when the hot water boiler is heated and keep the system pressure below the relief setting of the relief valve. Series ET is a pre-pressurized steel tank with an expansion membrane that prevents contact of the water with the air in the tank. This prevents loss of air to the water and ensures long and trouble-free life for the system.

ET

ET SERIES SIZING CHART Precharge: 12psi (82 kpa) Relief Pressure: 30psi (206.7 kpa) System Operating Temperature: 200°F (93°C)

Note: Watts ET Series non-potable water expansion tank may be installed in a tee or any other suitable tapping in the heating system and can be installed in a vertical or horizontal position.

Selection Guide As an alternative to using a formula, you can use this Quick Reference Sizing Chart to select the correct tank for your system. This table is based upon a tank pre-charge of 12psi (82 kpa), a pressure relief valve setting of 30psi (2 bars) and a system operating temperature of 200°F (93°C). The chart takes into account typical system water volumes based upon boiler BTU’s and type of radiation installed. Simply go to the boiler output BTU equal to or higher than the installed boiler, read across the chart to the correct tank model as indicated by the type of system radiation column on the chart.

Boiler Output Net BTU’s

Finned Tube Baseboard

25,000 50,000 75,000 100,000 125,000 150,000 175,000 200,000 250,000 300,000

ET-15 ET-15 ET-30 ET-30 ET-30 ET-30 ET-60 ET-60 ET-60 ET-90

TYPE OF RADIATION Convectors or Radiators Unit Heaters Cast Iron ET-15 ET-15 ET-30 ET-30 ET-60 ET-60 ET-60 ET-60 ET-90 —

ET-15 ET-30 ET-30 ET-60 ET-60 ET-90 — — — —

Baseboard Cast Iron ET-15 ET-30 ET-60 ET-60 ET-90 ET-90 — — — —

For additional information, request literature ES-ET. Model

ET-15 ET-30 ET-60 ET-90

Size (DN)

Tank Conn. Volume

Volume

Acceptance Dia.

Length

Weight

in.

mm

Gals.

Liters

Gals.

Liters

in.

mm

in.

mm

lbs.

kgs.

12

15 15 15 20

2.1 4.7 6.6 13.0

8 17.8 25 49

1.4 3.0 4.3 8.0

5.3 11.4 16.3 30.4

713⁄16 105⁄8 123⁄16 15

198 269 310 381

1113⁄16 15 15 211⁄8

300 381 381 536

5 8 14 26.5

2.3 3.7 6.3 12.0

⁄ 1⁄2 1⁄2 3⁄4

Series ET-ASF Combination Packages FV4-M1

Series ET-ASF hydronic boiler combination packages make it easier to buy system components by including an ET expansion tank, AS air scoop, and FV4-M1 float vent valve all in one package and for a lower cost than buying each of the components separately. Model

Float Vent FV-4M1 1" (25mm) 11/4" (32mm) 1/8" (3mm) 1/8" (3mm) Combination Packages ET-15-ASF ET-15-ASF ET-30-ASF ET-30-ASF ET-60-ASF ET-60-ASF

14

Air Scoop

X X X X X X

X X X X X X

AS 1" (25mm) or 11⁄4" (32mm)

Expansion Tank ET-15 ET-30 ET-90

X X X X X X

ET-15, ET-30 or ET-60

NON-POTABLE

Series HP Boiler Trim-Out Packages Series HP boiler trim-out packages contain all the essential trim-out components of a quality boiler installation in a single easy to carry package. Package Includes: 18

⁄ " (3mm), FV4-M1 Float Vent

18

⁄ " (3mm) SCV

AS Air Scoop 1" or 11⁄4" (25 or 32 mm) 911S or B911S Combination Backflow Preventer and Boiler Fill Valve

12

⁄ " (13mm) SCV ET-30

Expansion Tank

Package Selection Chart Model

Service Check Valve 1" (25mm) 11/4" (32mm) 1/8" (3mm) 1/2" (15mm) Boiler Trim-out Packages HP-C HP-D HP-15C HP-15D HP-30 BC HP-30 BD HP-15 BC HP-15 BD HP-15 BF HP-30 BF HPP

Air Scoop

X

X X X X X X X X X X X

X X X X X X X X X X

Float Vent FV-4M1 DuoVent 1/8" (3mm) 1/8" (3mm)

X X X X X X X X X X X

Fill Valve B1156

X X X X

Fill Valve/ Backflow Preventer 911S B911S

Flow Check 2000S-M5 1" (25mm)

X X X X X X X X

X X X X X X X X

X X X

Expansion Tank ET-15 ET-30

X X X X X

X X X

X X

X

Series HP Bronze Bronze Boiler Trim Packages Series HP bronze boiler trim packages contain all the essential trim-out components of a quality boiler installation in a single easy to carry package. These packages include a bronze air scoop and bronze combination fill valve/backflow preventer. Package Includes: 12

⁄ " FV4-M1 Float Vent

12

⁄ " SCV Service Check

1" or 11⁄4" AS-B Air Scoop ⁄ " SCV Service Check

12

ET-30 or ET-15 Expansion Tank B911S Combination Backflow Preventer and Boiler Fill Valve

Package Selection Chart MODEL

AIR SCOOP

SERVICE CHECK VALVE

AS-B-S 1"

HP-15C-AB-S HP-15D-AB-S HP-15C-AB-T HP-15D-AB-T HP-30C-AB-S HP-30D-AB-S HP-30C-AB-T HP-30D-AB-T

12

⁄"

FV-4M1 1⁄2"

FILL VALVE/ BACKFLOW PREVENTER B911S 1⁄2"

2 2 2 2 2 2 2 2

X X X X X X X X

X X X X X X X X

AS-B-T 11⁄4"

1"

11⁄4"

X X X X X X X X

FLOAT VENT

EXPANSION TANK ET-15 1⁄2"

ET-30 1⁄2"

X X X X X X X X

15

NON-POTABLE

Series ETX, ETSX Pressurized Expansion Tanks for Heating and Cooling Systems* Series ETX and ETSX Pressurized Expansion Tanks for Heating and Cooling Systems are designed to absorb the increased volume of water created when water is heated. These tanks maintain system pressure below the relief setting of the relief valve. The Series ETX and ETSX’s pre-pressurized steel tank features a durable expansion membrane that prevents contact of the water with the air in the tank. This rugged diaphragm minimizes loss of the air change and ensures long and trouble-free life for the system. Series ETX

Features • • • • •

Precharged at 12psi (82.7 kPa) Rugged flexible butyl diaphragm In-line and free standing models Compatible with glycol in systems Steel construction

Models ETX ETSX

Mounts to supply piping Free standing

Specifications Furnish and install as shown on plans a Watts Model ETX/ETSX _____ gallon _____ “ diameter x ____ “ (high) precharged steel expansion tank with a fixed butyl bladder. The tank shall have an NPT system connection and a .302”-32 charging valve connection (standard tire valve) to facilitate the on-site charging of the tank to meet system requirements. The tank shall be factory precharged to 12psi. The tank shall be a Watts Regulator Company Series ETX or ETSX. Maximum Working Temperature: 240˚F (115˚C) Maximum Working Pressure: ETX-15, ETX-30, ETX-60: 75psi (517 kPa) ETX-90 and ETSX Series: 100psi (6.89 bars) Precharge (field adjustable): 12psi (82.7 kPa) *Not for use on potable water systems.

16

Series ETSX

NON-POTABLE

Quick Sizing Chart Boiler Output Net BTU/H

Finned Tube Baseboard

Convectors or Unit Heaters Suggested Selection

Cast Iron Radiators

Cast Iron Baseboard

20,000 30,000 40,000 50,000 60,000 70,000 80,000 90,000 100,000 125,000 150,000 175,000 200,000 250,000 300,000 350,000 400,000 500,000 600,000 700,000 800,000 900,000 1,000,000 1,200,000 1,400,000 1,500,000

ETX-15 ETX-15 ETX-15 ETX-15 ETX-30 ETX-30 ETX-30 ETX-30 ETX-30 ETX-30 ETX-30 ETX-60 ETX-60 ETSX-30 ETSX-30 ETSX-30 ETSX-30 ETSX-40 ETSX-40 ETSX-60 ETSX-60 ETSX-60 ETSX-90 ETSX-90 ETSX-110 ETSX-110

ETX-15 ETX-15 ETX-30 ETX-30 ETX-30 ETX-30 ETX-30 ETX-30 ETX-60 ETX-60 ETX-60 ETX-60 ETX-60 ETSX-30 ETSX-40 ETSX-40 ETSX-60 ETSX-60 ETSX-90 ETSX-90 ETSX-110 ETSX-110 ETSX-110 ETSX-110 ETSX-160 ETSX-160

ETX-15 ETX-15 ETX-30 ETX-30 ETX-60 ETX-60 ETX-60 ETX-60 ETX-60 ETX-60 ETX-90 ETX-90 ETX-90 ETSX-40 ETSX-40 ETSX-60 ETSX-90 ETSX-90 ETSX-90 ETSX-90 ETSX-110 ETSX-110 ETSX-110 ETSX-160 ETSX-160 ETSX-110 (2)

ETX-15 ETX-15 ETX-30 ETX-30 ETX-60 ETX-60 ETX-60 ETX-60 ETX-60 ETX-90 ETX-90 ETX-90 ETX-90 ETSX-30 ETSX-30 ETSX-30 ETSX-40 ETSX-40 ETSX-60 ETSX-60 ETSX-90 ETSX-90 ETSX-90 ETSX-90 ETSX-110 ETSX-110

Note: These recommendations are based on the average water volume of typical closed systems. Fill pressure 12psi, relief valve set pressure of 30psi and system temperature of 200˚F.

Diameter

Diameter

Height Height

ETSX

ETX Model

ETX-15 ETX-30 ETX-60 ETX-90 ETSX-30 ETSX-40 ETSX-60 ETSX-90 ETSX-110 ETSX-160

Connection Size (DN)

Tank Volume

Accept. Volume

Diameter

Height

Weight

gal.

liters

gal.

liter

in

mm.

in

mm.

in

mm.

lbs.

kgs.

/ " MNPT / " MNPT 1/2" MNPT 3/4" MNPT 1" FNPT 1" FNPT 1" FNPT 11/4" FNPT 11/4" FNPT 11/4" FNPT

15 15 15 20 25 25 25 32 32 32

2.1 4.5 6.0 15.0 15.0 20.0 33.0 44.0 62.0 81.0

7.9 17.1 22.8 57.0 57.0 76.0 125.4 167.2 235.6 307.8

1.0 2.5 3.0 6.0 6.0 8.0 13.3 17.7 24.9 32.6

3.8 9.5 11.4 22.8 22.8 30.4 50.5 67.3 94.6 123.9

8 11 113/8 16 16 16 16 21 21 21

203 279 290 406 406 406 406 533 533 533

121/2 14 173/16 2013/16 2111/16 2813/16 4213/16 363/16 477/8 62

318 356 437 528 551 732 1087 919 1217 1575

0.5 10.0 11.5 28.0 32.0 39.0 57.0 72.0 112.0 123.0

0.23 4.54 5.22 12.70 14.51 17.69 28.85 32.66 50.80 55.79

1 2 1 2

17

NON-POTABLE — ASME

Series ETA ASME Pressurized Expansion Tanks for Heating and Cooling Systems

Models ETA 15 – ETA 240 Series ETA tanks are ASME fixed bladder type precharged expansion tanks. They are designed to absorb the expansion forces and control the pressure in heating and cooling systems. The water is contained in the heavy duty bladder preventing tank corrosion and waterlogging problems.

Features • ASME Section VIII Construction • Heavy duty butyl bladder • Precharged to 12psi (82 kpa) (Field Adjustable) • Shell: Carbon steel • Bladder: Heavy duty butyl • Primer coated exterior Lift Ring

Specifications Furnish and install as shown on plans a Watts Model ETA ____ gallon ____ " diameter x ____" (high) pre-charged steel expansion tank with a fixed butyl bladder. The tank shall have a top NPT system connection and a .302" – 32" (7.6 – 812.8mm) charging valve connection (standard tire valve) to facilitate the on-site charging of the tank to meet system requirements. The tank must be constructed in accordance with Section VIII of the ASME Boiler and Pressure Vessel Code.

Charging Valve

System Connection

System Connection

O.A.H. Dia.

Maximum Design Pressure: ETA 15 – ETA 60: 150psi (10 bars) ETA 80 – ETA 240: 125psi (8.5 bars) Precharged to 12psi (82 kPa) Maximum Design Temperature: 240°F (115°C)

O.A.H.

Dia.

For additional information, request literature ES-ETA.

C ETA 40 – ETA 240

ETA 15 and ETA 20 Model

ETA 15 ETA 20 ETA 40 ETA 60 ETA 80 ETA 100 ETA 120 ETA 144 ETA 180 ETA 200 ETA 240 18

System Connection Size (DN)

Tank Volume

Charging Valve

Acceptance Volume

Max. Operating Pressure

Dimensions (approx.) Dia.

Weight

Height

C

in.

mm

Gals.

Liters

Gals.

Liters

psig

bars

in.

mm

in.

mm

in.

mm

lbs.

kgs.

34

20 20 25 25 25 25 40 40 40 40 40

7.8 10.9 25 35 45 60 70 80 90 115 140

29.6 41.4 95 133 171 228 266 304 342 437 532

2.5 2.5 10 10 21 21 48 48 48 48 52

9.5 9.5 38 38 80 80 182.4 182.4 182.4 182.4 197.6

150 150 150 150 125 125 125 125 125 125 125

10 10 10 10 8.6 8.6 8.6 8.6 8.6 8.6 8.6

12 12 16 16 20 20 24 24 24 24 24

305 305 406 406 508 508 610 610 610 610 610

19 26 33 45 38 49 46 49 52 66 78

483 660 838 1143 968 1245 1168 1245 1321 1676 1981

– – 12 12 18 18 22 22 22 22 22

– – 305 305 457 457 559 559 559 559 559

42 52 84 97 148 175 259 268 283 325 362

19 24 38 44 67 79 117 122 128 147 164

⁄ 3⁄ 4 1 1 1 1 1 1⁄ 2 1 1⁄ 2 1 1⁄ 2 1 1⁄ 2 1 1⁄ 2

NON-POTABLE — ASME

Series ET-RA ASME Pressurized Expansion Tanks for Heating and Cooling Systems

D

Lift Ring

E

Models ET-RA 35 – ET-RA 2000 Series ET-RA tanks are ASME removable bladder type pre-charged expansion tanks. They are designed to absorb the expansion forces and control the pressure in heating and cooling systems. The water is contained in the heavy duty bladder, preventing tank corrosion and waterlogging problems.

A B

C

Features

F

G

• ASME Section VIII Code Construction

ET-RA 85 – ET-RA 800

• Removable butyl bladder • Precharged to 12psi (82 kpa) (Field Adjustable) • Shell: Carbon steel • Bladder: Heavy duty butyl

Lift Ring

• Primer coated exterior C

Specifications Furnish and install as shown on plans a Watts Model ET-RA ____ gallon ____ " diameter x ____" (high) pre-charged steel expansion tank with a heavy duty butyl rubber bladder. The tank shall have NPT system connections and a .302" - 32" (7.6 – 812mm) charging valve connection (standard tire valve) to facilitate the on-site charging of the tank to meet system requirements. The tank must be constructed in accordance with Section VIII of the ASME Boiler and Pressure Vessel Code.

System Connection C

Charging Valve E

2" B A

B

1" NPT w/Plug

Lift Ring

E

Maximum Design Pressure: 125psi* (8.5 bars) Maximum Design Temperature: 240°F (115°C) Precharged to 12psi (83 kPa) *Models with 200 and 250psi ratings are available.

ET-RA 35 and ET-RA 50

Drain D A ET-RA 1000 – ET-RA 2000

For additional information, request literature ES-ET-RA. Model

ET-RA 35 ET-RA 50 ET-RA 85 ET-RA 130 ET-RA 200 ET-RA 300 ET-RA 400 ET-RA 500 ET-RA 600 ET-RA 800 ET-RA 1000 ET-RA 1200 ET-RA 1400 ET-RA 1600 ET-RA 2000

Tank Volume

Tank A (DN)

B

C

D

Dimensions (approx.) E

Gals.

Liters

in.

mm

in.

mm

in.

mm

in.

mm

10 13 23 35 53 79 106 132 158 211 264 317 370 422 528

38 49.4 87.4 133 201.4 300 402.8 501.6 600.4 801.8 1003.2 1204.6 1406 1603.6 2006.4

12 14 16 20 24 24 30 30 30 36 36 36 36 48 48

305 356 400 508 610 610 750 750 750 900 900 900 900 1200 1200

25 25 37 37 43 55 49 57 65 63 74 86 99 72 85

635 635 940 940 1092 1397 1245 1448 1651 1600 1880 2184 2515 1829 2159

34

19 19 25 25 38 38 38 38 38 38 38 38 38 38 38

– – 1⁄ 2 1⁄ 2 1⁄ 2 3⁄ 4 3⁄ 4 3⁄ 4 3⁄ 4 3⁄ 4 3⁄ 4 3⁄ 4 3⁄ 4 3⁄ 4 3⁄ 4

– – 13 13 13 19 19 19 19 19 19 19 19 19 19

⁄ 3⁄ 4 1 1 1 1⁄ 2 1 1⁄ 2 1 1⁄ 2 1 1⁄ 2 1 1⁄ 2 1 1⁄ 2 1 1⁄ 2 1 1⁄ 2 1 1⁄ 2 1 1⁄ 2 1 1⁄ 2

.302" -32NC – – .302" -32NC – – – – – – .302" -32NC –

Weight F

G

in.

mm

in.

mm

lbs.

kgs.

– – 12 16 20 20 24 24 24 30 – – – – –

– – 305 406 508 508 610 610 610 762 – – – – –

– – 5 1⁄ 2 5 1⁄ 2 5 1⁄ 4 5 1⁄ 4 5 1⁄ 4 5 1⁄ 4 5 1⁄ 4 5 1⁄ 4 – – – – –

– – 140 140 133 133 133 133 133 133 – – – – –

40 50 90 125 210 225 300 335 360 475 710 720 875 1100 1280

18 23 41 57 95 102 136 152 163 215 322 327 397 499 581

Note: Models ET-RA 85 – ET-RA 800 have both top and bottom connections (C and D) to access the bladder. 19

NOTES

20

NOTES

21

HEADQUARTERS: Watts Regulator Company

815 Chestnut St., North Andover, MA 01845-6098 U.S.A.

978 688-1811

978 794-1848

North East

Edwards, Platt & Deely, Inc. Edwards, Platt & Deely, Inc. W. P. Haney Co., Inc.

271 Royal Ave., Hawthorne, NJ 07506 368 Wyandanch Ave., North Babylon, NY 11703 51 Norfolk Ave., South Easton, MA 02375

973 427-2898 631 253-0600 508 238-2030

973 427-4246 631 253-0303 508 238-8353

Mid Atlantic

J. B. O’Connor Company, Inc. RMI The Joyce Agency, Inc. Vernon Bitzer Associates, Inc. WMS Sales, Inc. (Main office)

P.O. Box 12927, Pittsburgh, PA 15241 Glenfield Bus. Ctr., 2535 Mechanicsville Tpk., Richmond, VA 23223 8442 Alban Rd., Springfield, VA 22150 980 Thomas Drive, Warminster, PA 18974 9580 County Rd., Clarence Center, NY 14032

724 745-5300 804 643-7355 703 866-3111 215 443-7500 716 741-9575

724 745-7420 804 643-7380 703 866-2332 215 443-7573 716 741-4810

South East

Billingsley & Associates, Inc. Billingsley & Associates, Inc. Francisco J. Ortiz & Co., Inc. Mid-America Marketing, Inc. Mid-America Marketing, Inc. Mid-America Marketing, Inc. Smith & Stevenson Co., Inc. Spotswood Associates, Inc. Target Marketing Enterprises, Inc.

2728 Crestview Ave., Kenner, LA 70062-4829 478 Cheyenne Lane, Madison, MS 39110 Charlyn Industrial Pk., Road 190 KM1.9 - Lot #8, Carolina, Puerto Rico 00983 203 Industrial Drive, Birmingham, AL 35211 1364 Foster Avenue, Nashville, TN 37210 5466 Old Hwy. 78, Memphis, TN 38118 4935 Chastain Ave., Charlotte, NC 28217 6235 Atlantic Blvd., Norcross, GA 30071 118 West Grant St., Building M, Orlando, FL 32806

504 602-8100 601 856-7565 787 769-0085 205 879-3469 615 259-9944 901 795-0045 704 525-3388 770 447-1227 407 245-7838

504 602-8106 601 856-8390 787 750-5120 205 870-5027 615 259-5111 901 795-0394 704 525-6749 770 263-6899 407 245-7833

North Central

Aspinall Associates, Inc. Dave Watson Associates Disney McLane & Associates BWA Company Mid-Continent Marketing Services Ltd. Soderholm & Associates, Inc. Stickler & Associates

6840 Hillsdale Court, Indianapolis, IN 46250 1325 West Beecher, Adrian, MI 49221 428 McGregor Ave., Cincinnati, OH 45206 17610 S. Waterloo Rd., Cleveland, OH 44119 1724 Armitage Ct., Addison, IL 60101 7150 143rd Ave. N.W., Anoka, MN 55303 333 North 121 St., Milwaukee, WI 53226

317 849-5757 517 263-8988 800 542-1682 216 486-1010 630 953-1211 763 427-9635 414 771-0400

317 845-7967 517 263-2328 877 476-1682 216 486-2860 630 953-1067 763 427-5665 414 771-3607

South Central

Fax #

Hugh M. Cunningham, Inc. Mack McClain & Associates Mack McClain & Associates, Inc. Mack McClain & Associates, Inc. OK! Sales, Inc. Phoenix Marketing, Ltd.

13755 Benchmark, Dallas, TX 75234 11132 South Towne Square, Suite 202, St. Louis, MO 63123 1450 NE 69th Place, Ste. 56 Ankeny, IA 50021 15090 West 116th St., Olathe, KS 66062 2200 Blue Creek Dr., Norman, OK 73026 2416 Candelaria N.E., Albuquerque, NM 87107

972 888-3808 972 888-3838 314 894-8188 314 894-8388 515 288-0184 515 288-5049 913 339-6677 913 339-9518 405 360-6161 405 360-0092 505 883-7100 505 883-7101

Western

Telephone #

Delco Sales, Inc. Delco Sales, Inc. Fanning & Associates, Inc. Hollabaugh Brothers & Associates Hollabaugh Brothers & Associates P I R Sales, Inc. Preferred Sales R. E. Fitzpatrick Sales, Inc.

1930 Raymer Ave., Fullerton, CA 92833 111 Sand Island Access Rd., Unit I-10, Honolulu, HI 96819 6765 Franklin St., Denver, CO 80229-7111 6915 South 194th St., Kent, WA 98032 3028 S.E. 17th Ave., Portland, OR 97202 3050 North San Marcos Place, Chandler, AZ 85225 31177 Wiegman Road, Hayward, CA 94544 4109 West Nike Dr. (8250 South), West Jordan, UT 84088

714 888-2444 714 888-2448 808 842-7900 808 842-9625 303 289-4191 303 286-9069 253 867-5040 253 867-5055 503 238-0313 503 235-2824 480 892-6000 480 892-6096 510 487-9755 510 476-1595 801 282-0700 801 282-0600

Canada

For Technical Assistance Call Your Authorized Watts Agent.

Watts Industries (Canada) Inc. (Watts Regulator Co. Division) Con-Cur West Marketing, Inc. D.C. Sales, Ltd. D.C. Sales, Ltd. GTA Sales Team. Hydro-Mechanical Sales, Ltd. Hydro-Mechanical Sales, Ltd. Hydro-Mechanical Sales, Ltd. Le Groupe B.G.T., Inc. Le Groupe B.G.T., Inc. Mar-Win Agencies, Ltd. Northern Mechanical Sales Palser Enterprises, Ltd. RAM Mechanical Marketing RAM Mechanical Marketing Walmar Mechanical Sales

5435 North Service Road, Burlington, Ontario L7L 5H7 #109-42 Fawcett Rd., Coquitlam, British Columbia V3K 6X9 10-6130 4th St. S.E., Calgary, Alberta T2H 2A6 11420 142 Street, Edmonton, Alberta T5M 1V1 Greater Toronto Area 3700 Joseph Howe Dr., Ste. 1 Halifax, Nova Scotia B3L 4H7 297 Collishaw St., Ste. 7 (shipping) Moncton, New Brunswick E1C 9R2 85 Tolt Rd., St. Phillips, Newfoundland A1B 3M7 23 du Buisson, Pont Rouge, Quebec G3H 1X9 86 des Enterprises #208, Boisbriand, Quebec J7G 2T3 1123 Empress St., Winnipeg, Manitoba R3E 3H1 P.O. Box 280 (mailing) 163 Pine St. (shipping), Garson, Ontario P3L 1S6 1885 Blue Heron Dr., #4, London, Ontario N6H 5L9 1401 St. John St., Regina, Saskatchewan S4R 1S5 510 Ave M South, Saskatoon, Saskatchewan S7M 2K9 24 Gurdwara Rd., Nepean, Ontario K2E 8B5

905 332-4090 604 540-5088 403 253-6808 780 496-9495 888 208-8927 902 443-2274 506 859-1107 709 895-0090 418 657-2800 450 434-9010 204 775-8194 705 693-2715 519 471-9382 306 525-1986 306 244-6622 613 225-9774

905 332-7068 604 540-5084 403 259-8331 780 496-9621 888 479-2887 902 443-2275 506 859-2424 709 895-0091 418 657-2700 450 434-9848 204 786-8016 705 693-4394 519 471-1049 306 525-0809 306 244-0807 613 225-0673

EXPORT Hdqtrs.: Watts Regulator Co.

815 Chestnut St., North Andover, MA 01845-6098 U.S.A.

978 688-1811

978 794-1848

0408

Watts USA website: www.wattsreg.com Watts Canada website: www.wattscanada.ca

PG-ThermExpansion 0414

© Watts Regulator Co., 1998

Printed in U.S.A.