Data Sheet

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Fisher

POSI-SEAL

A31A Cryogenic High

Performance Butterfly Valve

Description

The Fisher A31A Cryogenic High Performance

Butterfly Valve (HPBV) is designed for extreme

temperature cryogenic services and features a valve

body extension which positions the packing system

and the actuator away from the extreme

temperatures. The NPS 3 through 12 valves feature

a unique one-piece investment cast extension

housing (see figures 1 and 2). The NPS 14 through

24 valves employ a two-piece fabricated extension

housing. The valve also features a metal NOVEX

seal as standard providing tight shutoff, low

operating torques and the rugged durability needed

for cryogenic service.

The A31A Cryogenic HPBV has been developed as

a valve/actuator package with a Double D drive shaft

(standard for NPS 3 through 12) to allow easy, direct

mounting to the Fisher 1035 Rack and Pinion

actuator, eliminating the need for external coupling

systems. Also available are keyed shaft (standard

for NPS 14 through 24) and splined drive shafts to

allow easy mounting to other Fisher actuators.

The A31A Cryogenic HPBV is available in either

flangeless (wafer) or single flange styles, and

S31600 (316 SST) is the standard valve body and

disc material. This valve is offered in full rated

CL150 and CL300 pressure classes.

Contents

Features 3..................................

Specifications 2.............................

Installation 3................................

Coefficients 16..............................

Tables

Approximate Weights 3..................

Material Temperature Ratings 6..........

Dimensions 7..........................

W7451

Figure 1. Fisher POSI-SEAL A31A Cryogenic Valve with 1035 Actuator

Product Bulletin

21.1:Cryogenic-Rotary

D500230X012

October 2010

A31A Cryogenic Valve

Summary of content (20 pages)

PAGE 1
Product Bulletin 21.1:Cryogenic-Rotary D500230X012 October 2010 A31A Cryogenic Valve Fisherr POSI-SEALt A31A Cryogenic High Performance Butterfly Valve Description The Fisher A31A Cryogenic High Performance Butterfly Valve (HPBV) is designed for extreme temperature cryogenic services and features a valve body extension which positions the packing system and the actuator away from the extreme temperatures.
PAGE 2
Product Bulletin 21.1:Cryogenic-Rotary October 2010 A31A Cryogenic Valve Specifications Valve Body Sizes and Ratings NPS J 3, J 4, J 6, J 8, J 10, and J 12 CL150 and 300 J NPS 14 through 24 valves are also available in CL150 and 300. Valve Body Classification Face-to-face dimensions are in compliance with MSS SP68 and API 609 standards; valve bodies are designed for installation between ASME B16.
PAGE 3
Product Bulletin 21.1:Cryogenic-Rotary October 2010 A31A Cryogenic Valve Table 1.
PAGE 4
Product Bulletin 21.1:Cryogenic-Rotary October 2010 A31A Cryogenic Valve GRAPHITE GASKET RETAINING RING BODY HIGH PRESSURE AT SHUTOFF SEAL RING VALVE DISC NOVEX SEAL GRAPHITE GASKET RETAINING RING BODY HIGH PRESSURE AT SHUTOFF SEAL RING VALVE DISC CTFE SEAL GRAPHITE GASKET RETAINING RING BODY HIGH PRESSURE AT SHUTOFF SEAL RING VALVE DISC 16B5083 CTFE / ALUM SEAL Figure 3.
PAGE 5
Product Bulletin 21.1:Cryogenic-Rotary October 2010 A31A Cryogenic Valve C0759-1 CTFE CTFE A4132-1 CL150, CTFE SEAL A3715-2 CL300, CTFE SEAL Figure 4.
PAGE 6
Product Bulletin 21.1:Cryogenic-Rotary October 2010 A31A Cryogenic Valve Table 2.
PAGE 7
Product Bulletin 21.1:Cryogenic-Rotary October 2010 A31A Cryogenic Valve Table 3.
PAGE 8
Product Bulletin 21.1:Cryogenic-Rotary October 2010 A31A Cryogenic Valve Table 4.
PAGE 9
Product Bulletin 21.1:Cryogenic-Rotary October 2010 A31A Cryogenic Valve Table 5. Dimensions, Wafer Style valves, CL300, NPS 3 through 6 VALVE SIZE, NPS A D E F F1 G J K 3 48 87 83 10 19 79 146 375 4 54 113 83 22 25 95 178 451 6 57 164 83 41 48 127 248 489 R(1) S T U V FLAT LENGTH FLAT SIZE 71 133 16 152 32 117 25 11 94 171 19 152 32 117 25 14 146 219 25 152 32 117 25 17 M(2) mm Inches 3 1.88 3.44 3.25 0.375 0.75 3.13 5.75 14.
PAGE 10
Product Bulletin 21.1:Cryogenic-Rotary October 2010 A31A Cryogenic Valve Table 6. Dimensions, Single Flange Style Valves, CL300, NPS 3 through 6 VALVE SIZE, NPS A D E F F1 J K M(2) R(1) 3 48 87 83 10 19 168 375 71 4 54 113 83 22 25 200 451 6 57 164 83 41 48 270 489 S T U V W 207 16 152 32 117 94 238 19 152 32 117 146 308 25 152 32 117 See thread information below FLAT LENGTH FLAT SIZE 25 11 25 14 25 17 mm Inches 3 1.88 3.44 3.25 0.
PAGE 11
Product Bulletin 21.1:Cryogenic-Rotary October 2010 A31A Cryogenic Valve Table 7. Dimensions, Wafer Style Valve, CL150, NPS 10 through 24 VALVE SIZE, NPS A(1) D E F F1 G J 10 71 265 89 83 98 187 12 81 316 89 105 113 14 92 338 102 122 16 102 384 102 18 114 432 20 127 24 154 K M(2) R S(3) T U W --- 724 254 337 32 235 46.0 --- 224 406 851 298 381 38 235 46.0 --- 117 240 476 914 330 448 30.2 235 46.
PAGE 12
Product Bulletin 21.1:Cryogenic-Rotary October 2010 A31A Cryogenic Valve Table 8. Dimensions, Single Flange Style Valve, CL150, NPS 10 through 24 VALVE SIZE, NPS A(1) D E F F1 G J 10 71 265 89 83 98 --- 362 12 81 316 89 105 113 --- 432 14 92 338 102 122 117 240 16 102 384 102 143 133 18 114 432 102 162 20 127 479 102 182 24 154 594 102 227 M(2) R S(3) T U 724 254 406 32 235 46.0 851 298 476 32 235 46.0 476 914 330 533 30.2 235 46.
PAGE 13
Product Bulletin 21.1:Cryogenic-Rotary October 2010 A31A Cryogenic Valve Table 9. Dimensions, Wafer Style Valve, CL300, NPS 8 through 24 VALVE SIZE, NPS A(1) D E F F1 G J 8 73 195 89 51 62 173 10 85 246 89 75 75 12 94 292 89 93 14 117 321 102 16 133 367 18 149 413 20 159 24 181 K M(2) R S(3) T U 305 679 186 279 32 235 46.0 265 387 724 230 349 38 235 46.0 99 281 451 851 282 394 44 273 50.8 100 97 314 514 914 305 432 44.5 273 50.
PAGE 14
Product Bulletin 21.1:Cryogenic-Rotary October 2010 A31A Cryogenic Valve Table 10. Dimensions, Single Flange Style Valve, CL300, NPS 8 through 24 VALVE SIZE, NPS A(1) D E F F1 G J 8 73 195 89 51 62 214 10 85 246 89 75 75 12 94 292 89 93 14 117 321 102 16 133 367 18 149 413 20 159 24 181 K M(2) R S(3) T U 330 679 186 375 32 235 46.0 265 387 724 230 438 38 235 46.0 99 281 451 851 282 514 47.6 273 50.8 100 97 314 514 914 305 584 44.
PAGE 15
Product Bulletin 21.1:Cryogenic-Rotary October 2010 A31A Cryogenic Valve CLOCKWISE TO CLOSE A CLOSED POSITION MATCH MARKS E VENT T DISC SHOWN IN FULL OPEN POSITION OW K U 12B7105-A R DIAMETER M MINIMUM I.D. REQUIRED FOR DISC SWING CLEARANCE F D PORT DIAMETER F1 G A7247 VALVE BODY W DIAMETER ON A J DIAMETER CIRCLE C Figure 13.
PAGE 16
Product Bulletin 21.1:Cryogenic-Rotary October 2010 A31A Cryogenic Valve Coefficients Table 11. Fisher A31A Cryogenic-Valve CL150, Reverse Flow, NPS 3 through 18 Coefficients Valve Size, NPS Cv Kv Fd 3 10 20 30 40 50 60 70 80 90 6 14 29 50 77 111 143 167 188 5.19 12.1 25.1 43.3 66.6 96.0 124 144 163 0.090 0.17 0.26 0.34 0.42 0.49 0.57 0.64 0.70 FL 0.78 0.81 0.81 0.79 0.75 0.69 0.62 0.56 0.52 XT 0.51 0.55 0.55 0.53 0.47 0.40 0.33 0.26 0.
PAGE 17
Product Bulletin 21.1:Cryogenic-Rotary October 2010 A31A Cryogenic Valve Table 12. Fisher A31A Cryogenic-Valve CL150, Reverse Flow, NPS 20 and 24 Coefficients Valve Size, NPS Cv Kv Valve Rotation, Degrees 10 20 30 40 50 60 70 80 90 208 692 1520 2630 4160 6230 8730 11,220 13,850 180 599 1315 2275 3598 5389 7551 9705 11,980 0.090 0.17 0.26 0.34 0.42 0.49 0.57 0.64 0.70 FL 0.77 0.79 0.81 0.81 0.78 0.73 0.68 0.60 0.52 XT 0.50 0.53 0.55 0.55 0.51 0.45 0.
PAGE 18
Product Bulletin 21.1:Cryogenic-Rotary October 2010 A31A Cryogenic Valve Table 13. Fisher A31A Cryogenic-Valve CL300, Reverse Flow, NPS 3 through 18 Coefficients Valve Size, NPS Cv Kv Fd 3 10 20 30 40 50 60 70 80 90 6 14 29 50 77 111 143 167 188 5.19 12.1 25.1 43.3 66.6 96.0 124 144 163 0.090 0.17 0.26 0.34 0.42 0.49 0.57 0.64 0.70 FL 0.78 0.81 0.81 0.79 0.75 0.69 0.62 0.56 0.52 XT 0.51 0.55 0.55 0.53 0.47 0.40 0.33 0.26 0.
PAGE 19
Product Bulletin 21.1:Cryogenic-Rotary October 2010 A31A Cryogenic Valve Table 14. Fisher A31A Cryogenic-Valve CL300, Reverse Flow, NPS 20 and 24 Coefficients Valve Size, NPS Cv Kv Valve Rotation, Degrees 10 20 30 40 50 60 70 80 90 286 714 1480 2520 3910 5620 7240 8480 9530 247 618 1280 2180 3382 4861 6263 7335 8243 0.090 0.17 0.26 0.34 0.42 0.49 0.57 0.64 0.70 FL 0.78 0.81 0.81 0.79 0.75 0.69 0.62 0.56 0.52 XT 0.51 0.55 0.55 0.53 0.47 0.40 0.33 0.
PAGE 20
Product Bulletin A31A Cryogenic Valve 21.1:Cryogenic-Rotary October 2010 Note Neither Emerson, Emerson Process Management, nor any of their affiliated entities assumes responsibility for the selection, use, or maintenance of any product. Responsibility for the selection, use, and maintenance of any product remains with the purchaser and end user. Fisher and POSI-SEAL are marks owned by one of the companies in the Emerson Process Management business division of Emerson Electric Co.