Cla-Val 50-20 - Manual (Page 2)

G
GG
GGG
D Inlet
DD
DDD
F
FF
100S/2100S
Threaded &
Flanged
A
E
C
(MAX)
K
J
H
Inlet Outlet
AA
AAA
B (Diameter)
GGGG
DDDD Inlet
AAAA
100S/2100S
Grooved
EE
CC
(MAX)
K
J
H
Inlet Outlet
B (Diameter)
CLA-VAL
Copyright Cla-Val 2011 Printed in USA Specifications subject to change without notice.
P.O. Box 1325 • Newport Beach, CA 92659-0325 • Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: [email protected] • Website cla-val.com
©
E-50-20 (R-7/2011)
The Fire Pump Pressure Relief Valve shall modulate to relieve excess pressure
in a fire protection system. It shall maintain constant pressure in the system re-
gardless of demand changes. It shall be pilot controlled and back pressure
shall not affect its set point. It shall be actuated by line pressure through a pilot
control system and open fast in order to maintain steady system pressure as
system demand decreases. It shall close gradually to control surges and shall
re-seat drip-tight within 5% of its pressure setting. The main valve shall be of
the hydraulically-operated, pilot-controlled, diaphragm-type, globe or angle
valve. It shall have a single, removable, teflon-coated seat. Internal and exter- nal epoxy coating, a stem guided at both ends, and a resilient disc with a rec-
tangular cross section, being contained on 3 1/2 sides. No external packing
glands shall be permitted and the diaphragm shall not be used as a seating sur-
face. The pilot control shall be a direct-acting, adjustable, spring-loaded, di-
aphragm-type valve designed for modulating service to permit flow when
controlling pressure exceeds spring setting. It shall be the MODEL 50G-20
(globe) or Model 50A-20 (angle) Pressure Relief Valve as manufactured by Cla-
Val, Newport Beach, California.
Purchase Specifications We recommend providing adequate space around valve for maintenance work.
Valve Size (Inches) 1 1 1/4 1 1/2 2 2 1/2 3 4 6 8 10 12 14 16 18 20 24 30 36
A Threaded 7.25 7.25 7.25 9.38 11.00 12.50 — — — — — — — — — — — —
AA 150 ANSI — — 8.50 9.38 11.00 12.00 15.00 20.00 25.38 29.75 34.00 39.00 41.38 46.00 52.00 61.50 63.00 76.00
AAA 300 ANSI — — 9.00 10.00 11.62 13.25 15.62 21.00 26.38 31.12 35.50 40.50 43.50 47.64 53.62 63.24 64.50 76.00
AAAA Grooved End — — 8.50 9.00 11.00 12.50 15.00 20.00 25.38 — — — — — — — — —
B Dia. 5.62 5.62 5.62 6.62 8.00 9.12 11.50 15.75 20.00 23.62 28.00 32.75 35.50 41.50 45.00 53.16 56.00 66.00
C Max. 5.50 5.50 5.50 6.50 7.56 8.19 10.62 13.38 16.00 17.12 20.88 24.19 25.00 39.06 41.90 43.93 54.60 61.50
CC Max. Grooved End — — 4.75 5.75 6.88 7.25 9.31 12.12 14.62 — — — — — — — — —
D Threaded 3.25 3.25 3.25 4.75 5.50 6.25 — — — — — — — — — — — —
DD 150 ANSI — — 4.00 4.75 5.50 6.00 7.50 10.00 12.69 14.88 17.00 19.50 20.81 — — 30.75 — —
DDD 300 ANSI — — 4.25 5.00 5.88 6.38 7.88 10.50 13.25 15.56 17.75 20.25 21.62 — — 31.62 — —
DDDD Grooved End — — — 4.75 — 6.00 7.50 — — — — — — — — — — —
E 1.12 1.12 1.12 1.50 1.69 2.06 3.19 4.31 5.31 9.25 10.75 12.62 15.50 12.95 15.00 17.75 21.31 24.56
EE Grooved End — — 2.00 2.50 2.88 3.12 4.25 6.00 7.56 — — — — — — — — —
F 150 ANSI — — 2.50 3.00 3.50 3.75 4.50 5.50 6.75 8.00 9.50 10.50 11.75 15.00 16.50 19.25 22.50 25.60
FF 300 ANSI — — 3.06 3.25 3.75 4.13 5.00 6.25 7.50 8.75 10.25 11.50 12.75 15.00 16.50 19.25 24.00 25.60
G Threaded 1.88 1.88 1.88 3.25 4.00 4.50 — — — — — — — — — — — —
GG 150 ANSI — — 4.00 3.25 4.00 4.00 5.00 6.00 8.00 8.62 13.75 14.88 15.69 — — 22.06 — —
GGG 300 ANSI — — 4.25 3.50 4.31 4.38 5.31 6.50 8.50 9.31 14.50 15.62 16.50 — — 22.90 — —
GGGG Grooved End — — — 3.25 — 4.25 5.00 — — — — — — — — — — —
H NPT Body Tapping .375 .375 .375 .375 .50 .50 .75 .75 1 1 1 1 1 1 1 1 2 2
J NPT Cover Center Plug .25 .25 .25 .50 .50 .50 .75 .75 1 1 1.25 1.5 2 1.5 1.5 1.5 2 2
K NPT Cover Tapping .375 .375 .375 .375 .50 .50 .75 .75 1 1 1 1 1 1 1 1 2 2
Stem Travel 0.4 0.4 0.4 0.6 0.7 0.8 1.1 1.7 2.3 2.8 3.4 4.0 4.5 5.1 5.63 6.75 7.5 8.5
Approx. Ship Wt. Lbs. 15 15 15 35 50 70 140 285 500 780 1165 1600 2265 2982 3900 6200 7703 11720
Valve Size (mm) 25 32 40 50 65 80 100 150 200 250 300 350 400 450 500 600 750 900
A Threaded 184 184 184 238 279 318 — — — — — — — — — — — —
AA 150 ANSI — — 216 238 279 305 381 508 645 756 864 991 1051 1168 1321 1562 1600 1930
AAA 300 ANSI — — 229 254 295 337 397 533 670 790 902 1029 1105 1210 1362 1606 1638 1930
AAAA Grooved End — — 216 228 279 318 381 508 645 — — — — — — — — —
B Dia. 143 143 143 168 203 232 292 400 508 600 711 832 902 1054 1143 1350 1422 1676
C Max. 140 140 140 165 192 208 270 340 406 435 530 614 635 992 1064 1116 1387 1562
CC Max. Grooved End — 120 120 146 175 184 236 308 371 — — — — — — — — —
D Threaded 83 83 83 121 140 159 — — — — — — — — — — — —
DD 150 ANSI — — 102 121 140 152 191 254 322 378 432 495 528 — — 781 — —
DDD 300 ANSI — — 108 127 149 162 200 267 337 395 451 514 549 — — 803 — —
DDDD Grooved End — — — 121 — 152 191 — — — — — — — — — — —
E 29 29 29 38 43 52 81 110 135 235 273 321 394 329 381 451 541 624
EE Grooved End — — 52 64 73 79 108 152 192 — — — — — — — — —
F 150 ANSI — — 64 76 89 95 114 140 171 203 241 267 298 381 419 489 572 650
FF 300 ANSI — — 78 83 95 105 127 159 191 222 260 292 324 381 419 489 610 650
G Threaded 48 48 48 83 102 114 — — — — — — — — — — — —
GG 150 ANSI — — 102 83 102 102 127 152 203 219 349 378 399 — — 560 — —
GGG 300 ANSI — — 102 89 110 111 135 165 216 236 368 397 419 — — 582 — —
GGGG Grooved End — — — 83 — 108 127 — — — — — — — — — — —
H NPT Body Tapping .375 .375 .375 .375 .50 .50 .75 .75 1 1 1 1 1 1 1 1 2 2
J NPT Cover Center Plug .25 .25 .25 .50 .50 .50 .75 .75 1 1 1.25 1.5 2 1.5 1.5 1.5 2 2
K NPT Cover Tapping .375 .375 .375 .375 .50 .50 .75 .75 1 1 1 1 1 1 1 1 2 2
Stem Travel 10 10 10 15 18 20 28 43 58 71 86 102 114 130 143 171 190 216
Approx. Ship Wt. Kgs. 7 7 7 16 23 32 64 129 227 354 528 726 1027 1353 1769 2812 3494 5316
Valve Size (inches) 1 1 1/4 1 1/2 2 2 1/2 3 4 6 8 10 12 14 16 18 20 24 30 36
Max. Continuous GPM 55 93 125 210 300 460 800 1800 3100 4900 7000 8400 11000 14000 17000 25000 42000 50000
Max Surge GPM 120 210 280 470 670 1000 1800 4000 7000 11000 16000 19000 25000 31000 39000 56500 63000 85000
Valve Capacity
Model 50-20 Dimensions