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Table Of Contents
Parker Hannifin Corporation
Climate & Industrial Controls Group
Cleveland, OH
Catalog CIC-2003-1/US
366
Industrial Refrigeration Products: Pressure Regulators
Electrically Compensated Regulators, 20-100mm (¾" - 4")
A4 Adaptomode
®
Series
Type A4M electrically compensated inlet pressure regulators
modulate the flow of refrigerant gas or liquid to maintain a varying
upstream (Inlet) pressure in response to an electrical signal
applied to a low-voltage motor mounted on a regulator pilot.
A4OM regulators modulate outlet pressure.
See pages 370-371 for weld end body regulators.
Dimensions
H Max.
191mm
(7.5")
F
ODS
Flange
Weld Neck
Flange
E
G
B
C
A
D
OVERALL VALVE DIMENSIONS
Port Size 20mm & 25mm 32mm 40mm & 50mm 65mm 75mm 100mm
(3/4" & 1") (1-1/4") (1-5/8" & 2") (2-1/2") (3") (4")
DIMENSION mm inches mm inches mm inches mm inches mm inches mm inches
A4M 597 23.5 615 24.2 668 26.3 688 27.1 803 31.6 859 33.8
A
A4OM 620 22.4 638 23.1 691 25.2 711 26.0 826 32.5 882 34.7
B 148 5.8 162 6.3 177 6.9 181 7.1 273 10.7 292 11.5
C 164 6.2 203 8.0 251 9.9 252 9.9 311 12.2 359 14.1
A4M 449 17.7 453 17.9 491 19.4 507 20.0 530 20.9 566 22.3
G
A4OM 472 18.6 476 18.8 514 20.3 530 20.9 553 21.8 589 23.2
H 117 4.6 117 4.6 140 5.5 159 6.2 176 7.0 222 8.8
OVERALL LENGTH DIMENSIONS WITH FLANGES
*Add 13mm (0.5") to D, E & F Dimensions for A4OM Variation
FPT & SW 3/4" 216 8.5 1-1/4" 256 10.1 1-1/2" 307 12.1
D* FOR PIPE 1" 216 8.5 1-1/2" 256 10.1 2" 307 12.1 2-1/2" 331 13.0 3" 389 15.3 4" 450 17.7
SIZES 1-1/4" 216 8.5
WN FOR 3/4" 254 10.0 1-1/4" 300 11.8 1-1/2" 364 14.3
E* FOR PIPE 1" 261 10.3 1-1/2" 304 12.0 2" 371 14.6 2-1/2" 401 15.8 3" 478 18.8 4" 571 22.5
SIZES 1-1/4" 261 10.3
ODS FOR 7/8" 239 9.4 1-3/8" 269 10.6 1-5/8" 358 14.1 2-5/8" 348 13.7 3-1/8" 414 16.3
F* TUBE 1-1/8" 239 9.4 1-5/8" 279 11.0 2-1/8" 338 13.3
4-1/8" 503 19.8
SIZES 1-3/8" 231 9.1 2-1/8" 305 12.0 2-5/8" 358 14.1 3-1/8" 389 15.3 3-5/8" 432 17.0
1-5/8" 239 9.4
A4M
Technical Information