Owner manual

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STANDARD SPECIFICATIONS: For valves on this page.
Ambient/Media Temperature: 40° to 175°F (4° to 80°C); media
temperature extended to 220°F (105°C) for High Temperature
models.
Flow Media: Filtered air; 5 micron recommended.
Inlet Pressure: 30 to 150 psig (2 to 10 bar).
Pilot Pressure: Must be equal to or greater than inlet pressure.
A
B
C
A
B
C
5/2 Valves – Single Pressure Controlled, Air Return
5/2 Valves – Double Pressure Controlled, Detented







ANSI Range of Valve Model Number* Avg. Dimensions inches (mm) Weight
Size Port Sizes Std. Temp. High Temp. C
V
A B C lb (kg)
1 1/4 - 3/8 W7456A2331 W7456A2336 0.9 5.1 (128) 2.0 (50) 2.3 (58) 2.5 (1.1)
2.5 3/8 - 1/2 W7456A3331 W7456A3336 2.0 5.7 (145) 2.6 (66) 2.6 (66) 2.0 (0.9)
4 3/8 - 3/4 W7456C4331 W7456C4336 4.2 6.9 (174) 3.5 (88) 2.8 (70) 3.3 (1.5)
10 3/4 - 1¼ W7456A6331 W7456A6336 11 8.3 (211) 3.9 (99) 2.7 (68) 7.3 (3.3)
20 1¼ - 1½ W7456A8331 W7456A8336 22 13.5 (342) 5.6 (142) 3.0 (76) 17.5 (7.9)
* Base not included. See pages 8-10 for accessories.
ANSI Range of Valve Model Number* Avg. Dimensions inches (mm) Weight
Size Port Sizes Std. Temp. High Temp. C
V
A B C lb (kg)
1 1/4 - 3/8 W7456A2332 W7456A2337 0.9 5.1 (128) 2.0 (50) 2.3 (58) 2.5 (1.1)
2.5 3/8 - 1/2 W7456A3332 W7456A3337 2.0 5.7 (145 2.6 (66) 2.6 (66) 2.0 (0.9)
4 3/8 - 3/4 W7456C4332 W7456C4337 4.2 6.9 (174) 3.5 (88) 2.8 (70) 3.3 (1.5)
10 3/4 - 1¼ W7456A6332 W7456A6337 11 8.3 (211) 3.9 (99) 2.7 (68) 7.3 (3.3)
20 1¼ - 1½ W7456A8332 W7456A8337 22 13.5 (342) 5.6 (142) 3.0 (76) 17.5 (7.9)
* Base not included. See pages 8-10 for accessories.
Series W74 Poppet Valves for ANSI Bases
IMPORTANT NOTE: Please read carefully and thoroughly all of the CAUTIONS on the inside back cover.