Reflux 819

Pressure Regulators

Pressure regulators

Reflux 819 Reflux 819 is pilot-controlled pressure regulator for medium and high pressure applications. Reflux 819 is normally a fail to close regulator and specificaly will close under the following conditions: - breakage of main diaphragm; - lack of feeding to the pilot loop. This regulator is suitable for use with previously filtered, non-corrosive gases.

Modular Design The modular design of pressure regulator Reflux 819 allows retrofiting of an emergency monitor PM/819 or slam shut valve and/or silencer on the same body. The Reflux 819 regulator is truly a “top entry design” which allows easy maintenance and/or retrofiting options in the field. The unique dynamic balancing system ensures an outstanding turn down ratio combined with an extreme accurate outlet pressure control.

Reflux 819

DESIGNED WITH YOUR NEEDS IN MIND

Fig. 1

- Compact Design - Easy Maintenance - Top Entry - Low Noise

Reflux 819 + DB

Fig. 2

- Outstanding Turn Down Ratio - High Accuracy - Low Operation cost - Extreme Flexibility

SILENCER DB/819

Reflux 819

Whenever certain noise limit is desired, the silencer allows you to considerably reduce the noise level (dBA) up to the required value. The Reflux 819 pressure regulator can be supplied with an incorporated silencer in either the standard version or version with incorporated slam-shut or incorporated monitor regulator. With the built-in silencer, the Cg and KG valve coefficients are 5% lower than the corresponding version without the silencer. Given the modular arrangement of the regulator, the silencer may be retrofited to both standard Reflux 819 version as well as those with incorporated slam-shut or monitor, without any need to piping modification. Pressure reduction and control operate the same manner as in standard version.

SLAM SHUT SB/82 OR HB/97

Reflux 819

Fig. 3

Fig. 4

The Reflux 819 pressure regulator offers the possibility of installing an incorporated slam shut valve SB/82 or HB/97 valve, depending on the regulator size, and this can be done either during the manufacture process or be retrofited in the field. Retrofiting can be done without modifying the pressure regulator assembly. The Cg and KG coefficients of a regulator plus incorporated slam-shut system are 7% lower than those for standard versions. The main characteristics of this device are: - intervention for over pressure and/or under pressure - manual re-setting with internal by-pass activated by the lever mechanism; - manual push button control; - compact dimensions; - easy maintenance; - optional pneumatic or electromagnetic remote control; - optional installation remote signal devices (contact switches or proximity switches).

INCORPORATED SLAM SHUT MONITOR PM/819

Reflux 819

Fig. 5

This emergency regulator (monitor) is directly integrated to the body of the main regulator. Both pressure regulators, therefore, use the same valve body, although they have indipendent actuators, pilots and valve seats. The operational characteristics of the PM/819 monitor are the same as for the Reflux 819 regulator. The Cg and KG coefficients of regulator having an incorporated monitor are 7% lower than those for standard version. Another great advantage offered by the incorporated monitor regulator is that it can be installed at any time, even on an already existing regulator, without piping modification. This solution allows the construction of reduction lines with compact dimensions.

MAIN FEATURES

Reflux 819

> Design pressure: up to 102 bar (1479 Psig) > Design temperature: -10°C to + 60°C (+14 to + 140 °F) (-20°C to + 60°C - 4 to + 140°F on request) > Ambient temperature: -10°C to + 60°C (+14 to + 140°F) (-20°C to + 60°C - 4 to + 140°F on request) > Range of inlet pressure bpe: 0,8 to 102 bar ( 11,6 to 1479 Psig) > Range of outlet pressure Wh: 0,3 to 74 bar (5 to 1073 Psig) depending on installed pilot > Minimum working differential pressure: 0,5 bar (7,25 Psig) > Accuracy class AC: up to 1 > Closing pressure class SG: from 5 to 1 depending on outlet pressure > Available size DN: 1” -2” -3” -4” -6” -8” -10” > Flanging: class 150-300-600 RF or RTJ according to ANSI B16.5 and PN16 according to ISO 7005.

Reflux 819

MATERIALS Body

Cast steel ASTM A352 LCC for classes 300 and 600 ASTM A216 WCB for classes 150 and PN16

Head covers

ASTM A350 LF2 Forged steel

Stem

AISI 416 Stainless steel

Plug

ASTM A 350 LF2 Nickel coated on sealing surfaces

Valve seat

Steel + vulcanized rubber

Seals

Nitrile rubber

Compression fittings

According to DIN 2353 in zinc-plated carbon steel

The characteristics listed above are referred to standard products. Special characteristics and materials for specific applications may be supplied upon request.

Reflux 819

Cg, KG and K1 coefficient Nominal diameter (mm) Size (inches) Cg flow coefficient KG flow coefficient K1 body shape factor

25 1” 575 605 106,78

50 2” 2220 2335 106,78

80 3” 4937 5194 106,78

100 4” 8000 8416 106,78

150 6” 16607 17471 106,78

200 8” 25933 27282 106,78

250 10” 36525 38425 106,78

For sizing formula refer to www.fiorentini.com/sizing

CAUTION: The graph gives a quick reference of maximum recommended regulator capacity depending on selected size. Values are expressed in actual m3/h of Natural gas (s.g. 0,6): to have the data directly in Nm3/h it is necessary to multiply the value by the outlet pressure value in bar – absolute. 100000

Actual flow rate ( m3/h ) Logarithmic scale

10000

1000

DN 25 100

DN 50

DN 80

DN 150

DN 100

DN 200

DN 250

Outlet pressure ( bar ) 0

1

2

3

4

5

6

7

8

9

10 and more

Reflux 819

PILOTS

Reflux 819 regulators are equipped with series 200 pilot as listed below: - 204/. control range Wh: 0,3 to 43 bar; (4,35 623Psiggg) Psig) (4,5 toto623 - 205/. control range Wh: 20 to 60 bar; (290 to 870 Psig) Psigg) - 207/. control range Wh: 41 to 74 bar; (595 to 1073 Psig) Psigg) Pilots may be adjusted manually or remotely as shown in table 3:

Pilot adjustments Table: Pilot adjusting instructions Pilot type .../A Pilot Pilot type type .../D .../A Pilot Pilot type type .../CS .../D F.I.O. Pilot type .../CS

Reflux 819 Reflux 819

Manual setting Electric remote setting control Manual setting Pneumatic remote setting control Electric remote setting control Smart unit for remote setting, monitoring flow limitation and indirect flow Setting increased by pneumatic signal remote point measurement

Preregulators The pilot loop is completed with a device called preregulator, external to the pilot. Preregulators The pilot preregulators listed below available: The loop is completed withare a device called preregulator, separate from the pilot. -The R14/A: self adjusting preregulator that automatically regulates the feeding pressure to the pilot preregulators listed below are available: with integral filter at the inlet. - complete R14/A: self adjusting preregulator that automatically regulates the feeding pressure to the pilot - R34/A: adiustable preregulator complete complete with integral filter at the inlet. with integral filter at the inlet. - R42/A - R44/A - R45/A: adiustable preregulator complete with integral filter at the inlet.

Table : Pressostatic device PRESSOSTATIC DEVICE PRESSOSTATIC MOD. SB 101M 101M 102M 102M 102MH 103M 102MH 103MH 103M 104M 103MH 104MH 105M 104M 105MH 104MH 105M MOD. HB 105MH 103 104 105 105/92

values in bar(g)

DEVICE

Reflux 819 Reflux 819 MIN. MIN. from 0,01* 0,01÷to0,26* 0,26 bar 0,04 ÷ 2,8 from 0,04 to 2,8 bar 2,8 ÷ 5,5 from 2,8 to85,5 bar 0,2 ÷ 8 ÷ from 0,219 to 8 bar 1,6 ÷ 18 from18 8 ÷to4119 bar 3 44 18 bar from 1,6÷ to 44 ÷ 90 from 18 to 41 bar from 3 to 44 bar MIN. from 44 to 90 bar 0,4 ÷ 6,8 1,01 ÷ 20,6 2,5 ÷ 50 45 ÷ 75

MAX MAX 1* 1 bar from 0,02 0,02÷ to 0,2 ÷ 5,5 from 0,2 to 5,5 bar 0,2 ÷ 5,5 from 0,2 2 ÷ to 22 5,5 bar 2 ÷ 22 from 2 to 22 bar 7,5 ÷ 45 from7,5 2 to 22 bar ÷ 45 30 ÷ 90 from 7,5 to 45 bar 30 ÷ 90 from 7,5 to 45 bar from 30 to 90 bar MAX from 30 to 90 bar 1.3 ÷ 11 10 ÷ 31,5 25 ÷ 76 58 ÷ 85

OPTIONALS For Regulator - stroke limiter - flow-limiting devices - limit switches - position transmitters - steel fittings, single or dual sealing

IN-LINE MONITOR

Reflux 819 For Pilot - supplementary filter CF 14 - dehydrating filter CF 14/D

Reflux 819

The monitor is generally installed upstream of the main regulator. Although the function of the monitor regulator is different, the two regulators are virtually identical from the point of view of their mechanical components. The only difference is that monitor is set at a higher pressure than the main regulator. The Cg and KG coefficients of the regulator plus in-line monitor system are about 20% lower than those of the regulator alone.

M/A ACCELERATOR

Reflux 819

When the monitor is required to take over rapidly in the event of a main regulator failure, an M/A accelerator pilot installation on the monitor is recommended. Installation of the accelerator is mandatory when monitor is used as safety accessory according to PED directive. This device, connected by sensing line to the downstream pressure, discharges the gas enclosed in the motorization chamber of the monitor regulator, allowing the monitor to take over faster. The set point of M/A accelerator is usually higher than set point of the monitor by 0.3 to 0.5 bar. In case of working monitor configuration (two stage pressure cut with monitor override) the accelerator may not be necessary.

Reflux 819

REFLUX 819

E

C

G

A

F

P DN

H

DN B

Overal dimensions in mm Size (mm) Inches S - Ansi 150/PN 16 S - Ansi 300 S - Ansi 600 A B C D E F G H P Tubing Connections

D

S

25 1" 184 197 210 320 100 278 130 310 260 410 420 170

50 2” 254 267 286 350 130 278 160 310 290 430 480 200

80 3” 298 317 336 430 150 360 200 320 350 530 580 260

100 4” 352 368 394 490 190 360 250 320 380 600 680 290 ∆e10 x ∆i 8

150 6” 451 473 508 650 225 510 275 420 410 735 875 320

200 8” 543 568 609 750 265 510 320 420 460 850 1015 370

250 10” 673 708 752 800 340 610 440 470 560 900 1240 500

Face to face dimensions S according to IEC 534-3 and EN 334

Weights in Kgf S - Ansi 150/PN 16 S - Ansi 300 S - Ansi 600

44 45 46

61 62 64

105 109 112

146 156 165

308 345 360

408 470 495

900 950 1000

Reflux 819

REFLUX 819 + SB82 / + HB97

E

C

G

A

F

E

P DN

H

DN

D

B

B D

*

Overal dimensions in mm Size (mm) Inches S - Ansi 150/PN 16 S - Ansi 300 S - Ansi 600 A B C D E F G H P Tubing Connections

25 1" 184 197 210 320 215 278 280 310 260 410 535 170

50 2” 254 267 286 350 240 278 330 310 290 430 590 200

80 3” 298 317 336 430 270 360 380 320 350 530 700 260

*indicated Dimensions with the MODEL HB/97

100 4” 352 368 394 490 300 518* 360 440 650* 320 358* 380 600 790 290 ∆e10 x ∆i 8

150 6” 451 473 508 650 375 510 560 420 410 735 1025 320

645* 835* 410*

200 8” 543 568 609 750 450 510 625 420 460 850 1200 370

687* 900* 445*

250 10” 673 708 752 800 530 610 730 470 560 900 1330 500

53 55 56

71 73 75

796* 1060* 510*

Face to face dimensions S according to IEC 534-3 and EN 334

Weights in Kgf S - Ansi 150/PN 16 S - Ansi 300 S - Ansi 600

*

S

115 122 125

160 171 180

320 365 380

460 525 550

950 1000 1050

Reflux 819

REFLUX + PM819

E

C

G

A F

P H

DN

DN

P D

B

C S

Overal dimensions in mm Size (mm) Inches S - Ansi 150/PN 16 S - Ansi 300 S - Ansi 600 A B C D E F G H P Tubing Connections

25 1" 184 197 210 320 320 278 410 310 260 410 640 170

50 2” 254 267 286 350 350 278 430 310 290 430 700 200

80 3” 298 317 336 430 430 360 530 320 350 530 860 260

100 4” 352 368 394 490 490 360 600 320 380 600 980 290 ∆e10 x ∆i 8

150 6” 451 473 508 650 650 510 735 420 410 735 1300 320

200 8” 543 568 609 750 750 510 850 420 460 850 1500 370

250 10” 673 708 752 800 800 610 900 470 560 900 1600 500

245 255 264

517 554 569

670 731 756

1400 1450 1500

Face to face dimensions S according to IEC 534-3 and EN 334

Weights in Kgf S - Ansi 150/PN 16 S - Ansi 300 S - Ansi 600

84 85 86

105 106 108

180 184 187

Reflux 819

REFLUX 819 + DB/819

E

C

G

H

A

F

P

DN

DN B

D

S

Overal dimensions in mm Size (mm) 25 50 80 Inches 1" 2” 3” S - Ansi 150/PN 16 184 254 298 S - Ansi 300 197 267 317 S - Ansi 600 210 286 336 A 520 575 700 B 100 130 150 C 278 278 360 D 130 160 200 E 310 310 320 F 425 495 615 G 610 640 785 H 620 705 850 P 370 400 505 K 220 300 330 Tubing Connections Face to face dimensions S according to IEC 534-3 and EN 334

K

100 4” 352 368 394 800 190 360 250 320 670 895 990 585 390 ∆e10 x ∆i 8

150 6” 451 473 508 935 225 510 275 420 795 1120 1160 690 480

200 8” 543 568 609 1085 265 510 320 420 895 1250 1350 770 595

250 10” 673 708 752 1300 340 610 440 470 1100 1500 1640 1000 695

260 289 298

565 608 640

835 925 950

1280 1380 1430

Weights in Kgf S - Ansi 150/PN 16 S - Ansi 300 S - Ansi 600

70 72 73

126 128 130

195 204 207

Reflux 819

REFLUX 819+DB/819+SB82 /+HB97

E

C

G

A

F

P H

DN

E

DN

D

B

B

D

*

Size (mm) Inches S - Ansi 150/PN 16 S - Ansi 300 S - Ansi 600 A B C D E F G H P K Tubing Connections

*

S

Overal dimensions in mm 25 1" 184 197 210 520 215 278 280 310 425 610 735 370 220

50 2” 254 267 286 575 240 278 330 310 495 640 815 400 300

80 3” 298 317 336 700 270 360 380 320 615 785 970 505 330

*indicated Dimensions with the MODEL HB/97

100 4” 352 368 394 800 300 518* 360 440 650* 320 358* 670 895 1100 575 390 ∆e10 x ∆i 8

150 6” 451 473 508 935 375 510 560 420 795 1120 1310 690 480

K

645* 835* 410*

200 8” 543 568 609 1085 450 510 625 420 865 1250 1535 770 595

687* 900* 445*

250 10” 673 708 752 1300 530 610 730 470 1100 1500 1830 1000 695

79 82 83

136 139 141

1060* 510*

Face to face dimensions S according to IEC 534-3 and EN 334

Weights in Kgf S - Ansi 150/PN 16 S - Ansi 300 S - Ansi 600

796*

205 217 220

274 304 313

577 628 660

887 980 1500

1330 1430 1480

Reflux 819

REFLUX 819 + DB/851 + PM/819

E C

G

A

F

P H

DN

DN L D

C S

B

K

Overal dimensions in mm Size (mm) Inches S - Ansi 150/PN 16 S - Ansi 300 S - Ansi 600 A B C D E F G H P K Tubing Connections

25 1" 184 197 210 520 320 278 410 310 425 610 840 370 220

50 2” 254 267 286 575 350 278 430 310 495 640 925 400 300

80 3” 298 317 336 700 430 360 530 320 615 785 1130 505 330

100 4” 352 368 394 800 490 360 600 320 670 895 1290 575 390 ∆e10 x ∆i 8

150 6” 451 473 508 935 650 510 735 420 795 1120 1585 690 480

200 8” 543 568 609 1085 750 510 850 420 895 1250 1835 770 595

250 10” 673 708 752 1300 800 610 900 470 1100 1500 2100 1000 695

359 388 397

774 783 815

1097 1185 1210

1780 1880 1930

Face to face dimensions S according to IEC 534-3 and EN 334

Weights in Kgf S - Ansi 150/PN 16 S - Ansi 300 S - Ansi 600

110 112 113

170 172 174

270 267 270

Pietro Fiorentini Solutions

Reducing and metering stations

Slam shut valves

Ball valves

Pietro Fiorentini S.p.A. via E.Fermi 8/10 I-36057 Arcugnano (VI) Italy

Tel. +39 0444 968.511 Fax. +39 0444 960.468

DA SISTEMARE !!!!!!!!

The data are not binding. We reserve the right to make eventual changes without prior notice.

CT-s 502-E September 13

www.fiorentini.com