FLANGE BOLTING GUIDE The Ultimate Critical Service Triple Offset Valve

Flange Bolting Guide A Division of Bray International, Inc.

The Ultimate Critical Service Triple Offset Valve

Contents Examples of Typical Flange to Valve Bolting

3

Torque Loss

4

Gasket Installation

2

Page

4-5

Tightening Methods

5

Class 150 | Double Flange Face To Face API 609, Iso 5752 Basic Series 13 | Body Drilling Ansi B16.5

6

Class 150 | Double Flange Face To Face API 609, Iso 5752 Basic Series 13 | Body Drilling Ansi B16.47 Series A

6

Class 150 | Double Flange Face To Face API 609, Iso 5752 Basic Series 13 | Body Drilling Ansi B16.5 Series B

6

Class 300 | Double Flange Face To Face API 609, Iso 5752 Basic Series 13 | Body Drilling Ansi B16.5

7

Class 300 | Double Flange Face To Face API 609, Iso 5752 Basic Series 13 | Body Drilling Ansi B16.47 Series A

7

Class 300 | Double Flange Face To Face API 609, Iso 5752 Basic Series 13 | Body Drilling Ansi B16.47 Series B

7

Class 600 | Double Flange Face To Face API 609, Iso 5752 Basic Series 14 | Body Drilling Ansi B16.5

8

Class 900 | Double Flange Face To Face ISO 5752 Basic Series 8 | Body Drilling Ansi B16.5

8

Class 150 | Gate Face To Face Face To Face API 609, Asme B16.10 | Body Drilling Ansi B16.5

9

Class 150 | Gate Face To Face Face To Face API 609, Asme B16.10 | Body Drilling Ansi B16.47 Series A

9

Class 300 | Gate Face To Face Face To Face API 609, Asme B16.10 | Body Drilling Ansi B16.5

9

Class 150 | Lug Face To Face API 609 | Body Drilling Ansi B16.5

10

Class 300 | Lug Face To Face API 609 | Body Drilling Ansi B16.5

10

Class 150 | Wafer Face To Face API 609 | Body Drilling Ansi B16.5

11

Class 300 | Wafer Face To Face API 609 | Body Drilling Ansi B16.5

11

Page

Flange

Flange

Valve Body

L1

L1

Flange Bolting Guide

Washer

A D i v i s i o n o f B r a y I nWasher ternational, Inc.

The Ultimate Critical Service Triple Offset Valve Minimum Bolt Engagement Must Be Equal to Diameter of Bolt

Examples of Typical Flange to Valve Bolting Double Flange/Gate L1 Stud Bolt Length Wafer Body L1 StudBody Bolt Length Gasket Gasket

Gasket Gasket Valve Body Valve Body Flange Flange

Flange Flange

L1

L1

Washer Washer

Washer Washer

L1

Caution: To ensure proper installation refer to appropriate table within this guide for specific valve drilling information.

Lug Body L1 Stud Bolt Length Gasket

L2 Stud Bolt Length

Gasket

L2

L3 Hex Bolt Length

Valve Body Flange

Flange

Valve Body

L3

L1

L2 or L3 specifies special stud lengths for hub and neck locations, that do not permit thru holes.

L1 Washer

Washer

Minimum Bolt Engagement Must Be Equal to Diameter of Bolt

Wafer Body L1 Stud Bolt Length Double Flange/Gate Body L1 Stud Bolt Length Gasket Gasket

Gasket Gasket Valve Body Valve Body Flange Flange

Flange Flange Washer

Washer

L1 Washer

L1

L1

Washer

* Lug Threads may be tapped from both sides and therefore tap may not be continuous.

Lug Body L1 Stud Bolt Length

All information herein is proprietary and confidential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc. The technical data herein is for general information only. Product suitability should be based solely upon customer’s detailed knowledge and experience with their application.

Gasket

Gasket

Page

3

Flange Bolting Guide A Division of Bray International, Inc.

The Ultimate Critical Service Triple Offset Valve

TORQUE LOSS Torque loss is inherent in any bolted joint. The combined effects of bolt relaxation, (approximately 10% during the first 24 hours after installation), gasket creep, vibration in the system, thermal expansion and elastic interaction during bolt tightening contribute to torque loss. When torque loss reaches an extreme, the internal pressure exceeds the compressive force holding the gasket in place and a leak or blow-out occurs. A key to reducing these effects is proper gasket installation. By bringing the flanges together slowly and parallel when installing a gasket and taking a minimum of four bolt tightening passes, following the correct bolt tightening sequence, there is a payoff in reduced maintenance costs and increased safety. Proper gasket thickness is also important. The thicker the gasket, the higher the gasket creep which in turn can result in torque loss. On standard ANSI raised face flanges a 1/16” thick gasket is normally recommended. Thinner gasket materials can take a higher gasket load and therefore higher internal pressures. Even when the installation is ideal, where the bolt stress is uniformly applied to each bolt, and the gasket is properly compressed, problems can still arise. Inherently with time, loosening will occur due to the factors already mentioned. If other factors such as cycling, thermal upsets, water hammer or just a piping system with inadequate pipe supports are present, periodic retorquing might be necessary. For problem areas, high temperature applications or where there is temperature cycling, or where a flange cannot be retorqued, conical spring washers have been found to be very helpful as an aid to torque retention. They act as a spring and help lessen the effects of torque loss.

4

Page

Other factors affecting torque loss include: 1. Rate of heat up 2. New vs. used bolts or studs 3. Use of hardened steel washers 4. Lubrication of bolts, nuts and nut facings 5. Method of bolt up. Order of efficiency from least to greatest: a. Wrench and cheater bar or sledge hammer b. Air impact gun c. Torque wrench d. Hydraulic torque wrench e. Hydraulic stud tensioners Finally, having the torque information for the gasket material is helpful as well. Please refer to the torque data that follows.

GASKET INSTALLATION The importance of proper gasket installation cannot be stressed enough. The following is a basic explanation of how to properly bring the flanges together parallel and in stages, once the gasket is in place to properly compress the gasket. As a minimum, four passes are required. Using the right torque value for the lubricant being used to get the proper gasket compression is important as well. In the torque tables that follow for non-asbestos gasket materials, it is assumed the flanges are in good condition, anti-seize has not been used on any gasket contact surfaces and a proper installation technique such as what is outlined as follows is used. Never use any sheet gasket material as insulating washers in flange insulation kits. NOTE: As a general rule, soft gaskets are intended for service in Class 300 and below.

Flange Bolting Guide A Division of Bray International, Inc.

The Ultimate Critical Service Triple Offset Valve

GASKET INSTALLATION

12-bolt flanges and above:

1 and clean flanges, bolts,1 nuts and 1. Visually examine 8 washers. Replace components if necessary. 5 4

12

1

4

4. Number bolts in cross-pattern sequence according to the appropriate sketch below. 5. IMPORTANT! HAND TIGHTEN; then SNUG BOLTS UP to 10/20 FT-LBS torque, but DO NOT EXCEED 20% of target torque. 6. Check gap for uniformity. 7. Starting at the #1 bolt, use the appropriate crosspattern tightening sequence in the sketch below for Rounds 1, 2, and 3 and/or Round 4 (each sequence constitutes a “Round”).

3

10

2

•

•

3

10

6 2

2

7

• Lubricate, hand tighten, then SNUG up bolts • Round 1 - Tighten to 25% of- final torque • Round 2 - Tighten to 50% of final torque • Round 3 - Tighten to 100% of final torque

9 3

15

6 14

11

2

11

19

7

Rotational Round - 100% of Final Torque (same as Round 3 or 4 above). Use ROTATIONAL, clockwise tightening sequence, starting with Bolt No. 1, for one complete round and continue until no further nut 1 occurs at 100% of 20 12 1 rotation the12Final Torque value 13 8 5 5 16 for any nut. 9

4

3

17

Check gap around the circumference between each of these rounds, measured at every other bolt. If the gap is not reasonably uniform around the circumference, make the appropriate adjustments by selective bolt tightening before proceeding.

8

4

5

• Lubricate, hand tighten, then SNUG up bolts • Round 1 - Tighten to 20% of final torque • Round 2 - Tighten to 40% of final torque • Round 3 - Tighten to 80% of final torque • Round 4 - Tighten to 100% of final torque

5 4

13

18

7

6

1

8

1

10

4-bolt and 8-bolt flanges: 1

12

4

6

3. Install the new gasket, bolts and nuts. 2Be sure7 gasket 2 is properly centered. DO NOT REUSE old gasket, or use MULTIPLE gaskets.

20

16 9

4

2. LUBRICATE the bolts, nuts and nut bearing 3 3 surfaces.

8

5

8

6

4

17

9 10 Final Round - RETORQUE. After twenty-four 3 hours repeat 3Round 318or 4 (above) followed by a 15 6 Rotational 7Round. Tests show that a 7large percent14 2 11 19 11 2 age of the short-term bolt preload loss occurs within twenty-four hours after initial tightening. This Round recovers this loss. This is especially IMPORTANT for PTFE gaskets.

Tightening Methods • Hand Wrench • Manual Torque Wrench • Hydraulic Torque Wrench • Impact Wrench • Other

Page

5

Flange Bolting Guide A Division of Bray International, Inc.

The Ultimate Critical Service Triple Offset Valve

CLASS 150 | DOUBLE FLANGE VALVE SIZE In

mm

3 4 6 8 10 12 14 16 18 20 24

80 100 150 200 250 300 350 400 450 500 600

Stud Diameter/Thread 5/8” - 11 UNC 5/8” - 11 UNC 3/4” - 10 UNC 3/4” - 10 UNC 7/8” - 9 UNC 7/8” - 9 UNC 1” - 8 UNC 1” - 8 UNC 1 1/8” - 8 UN 1 1/8” - 8 UN 1 1/4” - 8 UN

Face to Face API 609, ISO 5752 Basic Series 13 | Body Drilling ANSI B16.5

Stud Bolts - L1 In

mm

Qty

In

mm

Qty

4 4 4.25 4.5 5 5 5.5 5.75 6 6.25 7

102 102 108 114 127 127 140 146 152 159 179

8 12 12 12 20 20 20 28 28 36 36

– 3 3.25 3.5 3.5 3.75 4.25 4.5 4.5 4.25 5

– 76 82 89 89 95 108 114 114 108 127

– 4 4 4 4 4 4 4 4 4 4

16 28 28 28 44 44 44 60 60 76 76

In

mm

30 32 36 40 42 48

750 800 900 1000 1050 1200

Stud Diameter/Thread 1 1/4” - 8 UN 1 1/2” - 8 UN 1 1/2” - 8 UN – 1-1/2” - 8 UN 1 1/2” - 8 UN

In

mm

30 32 36 40 42 48

750 800 900 1000 1050 1200

Stud Diameter/Thread 3/4” - 8 UNC 3/4” - 8 UNC 7/8” - 8 UNC 1” - 8 UNC 1” - 8 UNC 1” - 8 UNC

PLUS

OR

In

mm

Qty

Nuts & Washers

– 2.25 2.25 2.5 2.5 2.75 3 3.25 3.25 3 3.5

– 57 57 63 63 70 76 82 82 76 89

– 4 4 4 4 4 4 4 4 4 4

– 24 24 24 40 40 40 56 56 72 72

Face to Face API 609, ISO 5752 Basic Series 13 | Body Drilling ANSI B16.47 Series A

Stud Bolts - L1 In

mm

Qty

9.25 10.25 11 – 11.5 12.25

235 260 279 – 292 311

52 48 52 – 62 72

CLASS 150 | DOUBLE FLANGE VALVE SIZE

+

Hex Head Bolts - L3 TOTAL

TOTAL

Nuts & Washers

CLASS 150 | DOUBLE FLANGE VALVE SIZE

Stud Bolts - L2

Stud Bolts - L2

+

PLUS

TOTAL

In

mm

Qty

Nuts & Washers

6 6.75 7 – 7.5 8

152 171 179 – 190 203

4 8 12 – 10 16

108 104 116 – 134 160

Hex Head Bolts - L3 TOTAL

OR

In

mm

Qty

Nuts & Washers

4.75 5 5.5 – 5.75 6.25

121 127 140 – 146 159

4 8 12 – 10 16

104 96 104 – 124 144

Face to Face API 609, ISO 5752 Basic Series 13 | Body Drilling ANSI B16.5 Series B

Stud Bolts - L1 In

mm

Qty

6 6 7 7.25 8 7.5

152 152 178 184 203 191

78 80 72 68 86 86

Stud Bolts - L2

+

PLUS

TOTAL

In

mm

Qty

Nuts & Washers

4.5 4.5 5 5.25 5.5 5.25

114 114 127 133 140 133

10 16 16 20 10 10

166 176 160 156 182 182

Hex Head Bolts - L3 TOTAL

OR

In

mm

3.5 3.5 4 4 4.25 4.25

89 89 102 102 108 107.95

Nuts &

Qty Washers 10 156 16 160 16 144 20 136 10 172 10 172

NOTES: 1. Any combination of the above fastener types is applicable. 2. All nuts are in accordance with ANSI B18.2.2 Table 9 Heavy Hex nuts. 3. All Studs are in accordance with ANSI B18.2.1. 4. All Stud and bolt lengths rounded to next 1/4”.

6

Page

5. Calculations include 2 washers(.2”) for thru stud bolts and 1 (.1”) washer for hex bolt and stud bolts/nut. 6. Standard gaskets(0.125”), one per side, have been included in the bolting calculations.

Flange Bolting Guide A Division of Bray International, Inc.

The Ultimate Critical Service Triple Offset Valve

CLASS 300 | DOUBLE FLANGE VALVE SIZE In

mm

3 4 6 8 10 12 14 16 18 20 24

80 100 150 200 250 300 350 400 450 500 600

Stud Diameter/Thread 3/4” - 10 UNC 3/4” - 10 UNC 3/4” - 10 UNC 7/8” - 9 UNC 1” - 8 UNC 1 1/8” - 8 UN 1 1/8” - 8 UN 1 1/4” - 8 UN 1 1/4” - 8 UN 1 1/4” - 8 UN 1 1/2” - 8 UN

Face to Face API 609, ISO 5752 Basic Series 13 | Body Drilling ANSI B16.5

Stud Bolts - L1 In

mm

Qty

In

mm

Qty

4.5 4.75 5 5.75 6.5 7 7.25 7.75 8 8.25 9.25

114 121 127 146 165 178 184 197 203 209 235

12 12 20 20 24 24 32 32 40 40 40

3.25 3.25 3.75 4 4.25 4.5 4.75 5.25 5.25 5.5 6

83 83 95 102 108 114 121 133 133 140 152

4 4 4 4 8 8 8 8 8 8 8

28 28 44 44 56 56 72 72 88 88 88

In

mm

30 32 36 40 42 48

750 800 900 1000 1050 1200

Stud Diameter/Thread 1 3/4” - 8 UN – 2” - 8 UN – 1 5/8” - 8 UN 1 7/8” - 8 UN

In

mm

30 32 36 40 42 48

750 800 900 1000 1050 1200

Stud Diameter/Thread 1 3/8” - 8 UN – 1 5/8” - 8 UN – 1 3/4” - 8 UN 1 7/8” - 8 UN

PLUS

OR

In

mm

Qty

Nuts & Washers

2.5 2.5 2.75 3.25 3.25 3.5 3.5 3.75 4 4 4.5

63 63 70 82 82 89 89 95 102 102 114

4 4 4 4 8 8 8 8 8 8 8

24 24 40 40 48 48 64 64 80 80 80

Face to Face API 609, ISO 5752 Basic Series 13 | Body Drilling ANSI B16.47 Series A

Stud Bolts - L1

Stud Bolts - L2

In

mm

Qty

12.5 – 13.25 – 13.5 15.25

318 – 337 – 343 387

40 – 48 – 52 48

CLASS 300 | DOUBLE FLANGE VALVE SIZE

+

Hex Head Bolts - L3 TOTAL

TOTAL

Nuts & Washers

CLASS 300 | DOUBLE FLANGE VALVE SIZE

Stud Bolts - L2

+

PLUS

TOTAL

In

mm

Qty

Nuts & Washers

8.5 – 8 – 8.5 10.5

216 – 203 – 216 267

16 – 16 – 12 16

96 – 112 – 116 144

Hex Head Bolts - L3 TOTAL

OR

In

mm

Qty

Nuts & Washers

6 – 6 – 7 8

152 – 152 – 178 203

16 – 16 – 12 4

80 – 96 – 104 96

Face to Face API 609, ISO 5752 Basic Series 13 | Body Drilling ANSI B16.47 Series B

Stud Bolts - L1 In

mm

Qty

11.25 – 12.25 – 13.75 14.75

286 – 311 – 349 375

56 – 56 – 56 60

Stud Bolts - L2

+

PLUS

TOTAL

In

mm

Qty

Nuts & Washers

7 – 8 – 8.5 9.75

178 – 203 – 216 248

16 – 8 – 16 20

128 – 120 – 128 140

Hex Head Bolts - L3 TOTAL

OR

In

mm

Qty

Nuts & Washers

5.5 – 6.25 – 6.75 7.75

140 – 159 – 171 197

16 – 8 – 16 20

112 – 112 – 112 120

NOTES: 1. Any combination of the above fastener types is applicable. 2. All nuts are in accordance with ANSI B18.2.2 Table 9 Heavy Hex nuts. 3. All Studs are in accordance with ANSI B18.2.1. 4. All Stud and bolt lengths rounded to next 1/4”.

5. Calculations include 2 washers(.2”) for thru stud bolts and 1 (.1”) washer for hex bolt and stud bolts/nut. 6. Standard gaskets(0.125”), one per side, have been included in the bolting calculations.

Page

7

Flange Bolting Guide A Division of Bray International, Inc.

The Ultimate Critical Service Triple Offset Valve

CLASS 600 | DOUBLE FLANGE VALVE SIZE In

mm

4 6 8 10 12 14 16 18 20

100 150 200 250 300 350 400 450 500

Stud Diameter/Thread – 1”- 8 UNC 1 1/8” - 8 UN 1 1/4” - 8 UN 1 1/4” - 8 UN – – 1 5/8” - 8 UN –

Face to Face API 609, ISO 5752 Basic Series 14 | Body Drilling ANSI B16.5

Stud Bolts - L1

Stud Bolts - L2

In

mm

Qty

In

mm

Qty

Nuts & Washers

– 7.25 8 9 11 – – 11.25 –

– 184 203 229 279 – – 286 –

– 16 16 24 32 – – 24 –

– 5 5.5 7.25 6.5 – – 7.75 –

– 127 140 184 165 – – 197 –

– 8 8 8 8 – – 16 –

– 40 40 56 72 – – 64 –

+

PLUS

CLASS 900 | DOUBLE FLANGE VALVE SIZE In

mm

6 8 10 12 14 16 18 20

150 200 250 300 350 400 450 500

Stud Diameter/Thread – 1 3/8” - 8 UN 1 3/8” - 8 UN – – 1 5/8” - 8 UN 1 7/8” - 8 UN –

Hex Head Bolts - L3 TOTAL

TOTAL

OR

In

mm

Qty

Nuts & Washers

– 4 4.5 5.75 5 – – 6 –

– 102 114 146 127 – – 152 –

– 8 8 8 8 – – 16 –

– 32 32 48 64 – – 48 –

Face to Face ISO 5752 Basic Series 8 | Body Drilling ANSI B16.5

Stud Bolts - L1

Stud Bolts - L2

TOTAL

In

mm

Qty

In

mm

Qty

Nuts & Washers

– 9.75 10.25 – – 12 13.5 –

– 248 260 0 0 305 343 0

– 16 24 – – 24 24 –

– 6.75 7 – – 8.25 9.5 –

– 171 178 0 0 210 241 0

– 8 8 – – 16 16 –

– 40 56 – – 64 64 –

+

PLUS

Hex Head Bolts - L3 TOTAL

OR

In

mm

Qty

Nuts & Washers

– 5 5.25 – – 6.5 7.5 –

– 127 133 0 0 165 191 0

– 8 8 – – 16 16 –

– 32 48 – – 48 48 –

NOTES: 1. Any combination of the above fastener types is applicable. 2. All nuts are in accordance with ANSI B18.2.2 Table 9 Heavy Hex nuts. 3. All Studs are in accordance with ANSI B18.2.1. 4. All Stud and bolt lengths rounded to next 1/4”.

8

Page

5. Calculations include 2 washers(.2”) for thru stud bolts and 1 (.1”) washer for hex bolt and stud bolts/nut. 6. Standard gaskets(0.125”), one per side, have been included in the bolting calculations.

Flange Bolting Guide A Division of Bray International, Inc.

The Ultimate Critical Service Triple Offset Valve

CLASS 150 | GATE Face to Face VALVE SIZE In

mm

3 4 6 8 10 12 14 16 18 20 24

80 100 150 200 250 300 350 400 450 500 600

Stud Diameter/Thread 5/8” - 11 UNC 5/8” - 11 UNC 3/4” - 10 UNC 3/4” - 10 UNC 7/8” - 9 UNC 7/8” - 9 UNC 1” - 8 UNC 1” - 8 UNC 1 1/8” - 8 UN 1 1/8” - 8 UN 1 1/4” - 8 UN

Face to Face API 609, ASME B16.10 | Body Drilling ANSI B16.5

Stud Bolts - L1

Stud Bolts - L2

In

mm

Qty

In

mm

Qty

Nuts & Washers

4 4 4.25 4.5 5 5 5.5 5.75 6.25 6.5 7

102 102 108 114 127 127 140 146 159 165 178

8 12 12 16 24 24 24 32 32 40 40

– 2.75 3 – – – – – – – –

– 70 76 – – – – – – – –

– 4 4 – – – – – – – –

16 28 28 32 48 48 48 64 64 80 80

+

PLUS

CLASS 150 | GATE Face to Face VALVE SIZE In

mm

30

750

Stud Diameter/Thread 1 1/4” - 8 UN

In

mm

3 4 6 8 10 12 14 16 18 20 24

80 100 150 200 250 300 350 400 450 500 600

Stud Diameter/Thread 3/4” - 10 UNC 3/4” - 10 UNC 3/4” - 10 UNC 7/8” - 9 UNC 1” - 8 UNC 1 1/8” - 8 UN 1 1/8” - 8 UN 1 1/4” - 8 UN 1 1/4” - 8 UN 1 1/4” - 8 UN 1 1/2” - 8 UN

OR

In

mm

Qty

Nuts & Washers

– 2.25 2.25 – – – – – – – –

– 57 57 – – – – – – – –

– 4 4 – – – – – – – –

– 24 24 – – – – – – – –

Face to Face API 609, ASME B16.10 | Body Drilling ANSI B16.47 Series A

Stud Bolts - L1 In

mm

Qty

9.25

235

48

+

PLUS

Stud Bolts - L2

TOTAL

In

mm

Qty

Nuts & Washers

6

152

8

104

CLASS 300 | GATE Face to Face VALVE SIZE

Hex Head Bolts - L3 TOTAL

TOTAL

OR

Hex Head Bolts - L3 TOTAL In

mm

Qty

Nuts & Washers

4.75

121

8

96

Face to Face API 609, ASME B16.10 | Body Drilling ANSI B16.5

Stud Bolts - L1

Stud Bolts - L2

In

mm

Qty

In

mm

Qty

Nuts & Washers

4.5 4.75 5.25 5.75 6.5 7 7.25 7.75 8 8.25 9.25

114 121 133 146 165 178 184 197 203 210 235

12 12 20 20 32 32 36 36 44 44 48

3.5 3.5 3.75 4 – – 5 5.75 6 6 –

89 89 95 102 – – 127 146 152 152 –

4 4 4 4 – – 4 4 4 4 –

28 28 44 44 64 64 76 76 92 92 96

+

PLUS

Hex Head Bolts - L3 TOTAL

TOTAL

OR

In

mm

Qty

Nuts & Washers

2.5 2.5 2.75 3.25 – – 4 4.25 4.5 4.5 –

64 64 70 83 – – 102 108 114 114 –

4 4 4 4 – – 4 4 4 4 –

24 24 40 40 – – 72 72 88 88 –

NOTES: 1. Any combination of the above fastener types is applicable. 2. All nuts are in accordance with ANSI B18.2.2 Table 9 Heavy Hex nuts. 3. All Studs are in accordance with ANSI B18.2.1. 4. All Stud and bolt lengths rounded to next 1/4”.

5. Calculations include 2 washers(.2”) for thru stud bolts and 1 (.1”) washer for hex bolt and stud bolts/nut. 6. Standard gaskets(0.125”), one per side, have been included in the bolting calculations.

Page

9

Flange Bolting Guide A Division of Bray International, Inc.

The Ultimate Critical Service Triple Offset Valve

CLASS 150 | LUG VALVE SIZE In

mm

3 4 6 8 10 12 14 16 18 20 24

80 100 150 200 250 300 350 400 450 500 600

Stud Diameter/Thread 5/8” - 11 UNC 5/8” - 11 UNC 3/4” - 10 UNC 3/4” - 10 UNC 7/8” - 9 UNC 7/8” - 9 UNC 1” - 8 UNC 1” - 8 UNC 1 1/8” - 8 UN 1 1/8” - 8 UN 1 1/4” - 8 UN

Face to Face API 609 | Body Drilling ANSI B16.5 Stud Bolts - L1

Stud Bolts - L2

In

mm

Qty

In

mm

Qty

Nuts & Washers

3 3.25 3.25 3.75 4 4.25 4.75 4.5 5.25 5.25 6

76 83 82 95 101 108 121 114 133 133 152

8 16 16 16 24 24 24 32 32 32 32

– – – – – – – – – 4 5

– – – – – – – – – 102 127

– – – – – – – – – 8 8

8 16 16 16 24 24 24 32 32 40 40

+

PLUS

CLASS 300 | LUG VALVE SIZE In

mm

3 4 6 8 10 12 14 16 18 20 24

80 100 150 200 250 300 350 400 450 500 600

Stud Diameter/Thread 3/4” - 10 UNC 3/4” - 10 UNC 3/4” - 10 UNC 7/8” - 9 UNC 1” - 8 UNC 1 1/8” - 8 UN 1 1/8” - 8 UN 1 1/4” - 8 UN 1 1/4” - 8 UN 1 1/4” - 8 UN 1 1/2” - 8 UN

Hex Head Bolts - L3 TOTAL

TOTAL

OR

In

mm

Qty

Nuts & Washers

– – – – – – – – – 2.75 3.5

– – – – – – – – – 70 89

– – – – – – – – – 8 8

– – – – – – – – – 32 32

Face to Face API 609 | Body Drilling ANSI B16.5 Stud Bolts - L1

Stud Bolts - L2

TOTAL

In

mm

Qty

In

mm

Qty

Nuts & Washers

3.5 3.5 4 4.5 5 5.5 5.5 6 6.25 6.25 7.25

89 89 102 114 127 140 140 152 159 159 184

16 16 24 24 32 24 32 32 40 40 40

– – – – – 4.5 4.5 5 5 5.25 6

– – – – – 114 114 127 127 133 152

– – – – – 8 8 8 8 8 8

16 16 24 24 32 32 40 40 48 48 48

+

PLUS

Hex Head Bolts - L3 TOTAL

OR

In

mm

Qty

Nuts & Washers

– – – – – 3 3.25 3.75 3.75 4 4.5

– – – – – 76 82 95 95 102 114

– – – – – 8 8 8 8 8 8

– – – – – 24 32 32 40 40 40

NOTES: 1. Any combination of the above fastener types is applicable. 2. All nuts are in accordance with ANSI B18.2.2 Table 9 Heavy Hex nuts. 3. All Studs are in accordance with ANSI B18.2.1. 4. All Stud and bolt lengths rounded to next 1/4”.

10

Page

5. Calculations include 2 washers(.2”) for thru stud bolts and 1 (.1”) washer for hex bolt and stud bolts/nut. 6. Standard gaskets(0.125”), one per side, have been included in the bolting calculations.

Flange Bolting Guide A Division of Bray International, Inc.

The Ultimate Critical Service Triple Offset Valve

CLASS 150 | WAFER VALVE SIZE In

mm

3 4 6 8 10 12 14 16 18 20 24

80 100 150 200 250 300 350 400 450 500 600

Stud Diameter/Thread 5/8" - 11 UNC 5/8" - 11 UNC 3/4" - 10 UNC 3/4" - 10 UNC 7/8" - 9 UNC 7/8" - 9 UNC 1" - 8 UNC 1" - 8 UNC 1 1/8" - 8 UN 1 1/8" - 8 UN 1 1/4" - 8 UN

Face to Face API 609 | Body Drilling ANSI B16.5

Stud Bolts - L1

Stud Bolts - L2

In

mm

Qty

In

mm

6 6 6.5 7 7.75 8.25 9.25 9.75 10.75 11.5 13

152 152 165 178 197 209 235 248 273 292 330

4 8 8 8 12 12 12 16 16 16 16

– – – – – – – – – 4.25 5

– – – – – – – – – 108 127

CLASS 300 | WAFER VALVE SIZE In

mm

3 4 6 8 10 12 14 16 18 20 24

80 100 150 200 250 300 350 400 450 500 600

Stud Diameter/Thread 3/4” - 10 UNC 3/4” - 10 UNC 3/4” - 10 UNC 7/8” - 9 UNC 1” - 8 UNC 1 1/8” - 8 UN 1 1/8” - 8 UN 1 1/4” - 8 UN 1 1/4” - 8 UN 1 1/4” - 8 UN 1 1/2” - 8 UN

+

PLUS

TOTAL Nuts &

Qty Washers – 8 – 16 – 16 – 16 – 24 – 24 – 24 – 32 – 32 8 40 8 40

Face to Face API 609 | Body Drilling ANSI B16.5

Stud Bolts - L1

Stud Bolts - L2

In

mm

Qty

In

mm

6.5 7 7.5 8.75 10 11 12 13.5 14 15 17

165 179 190 222 254 279 305 343 356 381 432

8 8 12 12 12 12 16 16 20 20 20

– – – – 4.5 4.75 4.5 5.25 5.25 5.25 6.25

– – – – 114 121 114 132 132 132 159

+

PLUS

TOTAL Nuts &

Qty Washers – 16 – 16 – 24 – 24 8 32 8 32 8 40 8 40 8 48 8 48 8 48

NOTES: 1. Any combination of the above fastener types is applicable. 2. All nuts are in accordance with ANSI B18.2.2 Table 9 Heavy Hex nuts. 3. All Studs are in accordance with ANSI B18.2.1. 4. All Stud and bolt lengths rounded to next 1/4”.

5. Calculations include 2 washers(.2”) for thru stud bolts and 1 (.1”) washer for hex bolt and stud bolts/nut. 6. Standard gaskets(0.125”), one per side, have been included in the bolting calculations.

Page

11

Flange Bolting Guide A Division of Bray International, Inc.

The Ultimate Critical Service Triple Offset Valve

A Division of BRAY INTERNATIONAL, Inc. 13333 Westland East Blvd. Houston, Texas 77041 281/894-5454 FAX 281/894-9499 www.bray.com Bray® is a registered trademark of BRAY INTERNATIONAL, Inc. © 2014 Bray International. All rights reserved. OM-EN-TriFBG_2014-03