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Specifications

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3-Way ANSI Symbol

For single operator spring returned valves, the spring will be on the right side of the diagram - supply to port 3 would yield a normally closed valve.
Note: Any port may be pressurized or plugged.



4-Way ANSI Symbol

For single operator spring returned valves, the spring will be on the right side of the diagram - with supply in "P", "B" is pressurized and "A" is exhausted.
Note: Any port may be pressurized or plugged.

Flow Capacity 1.0 Cv or 45 SCFM at 100 PSI inlet with a Δp of 20 PSI
Operating Pressure Vacuum to 150 PSIG
Media Air or other inert gases
Ports 1/4" NPT
Body Anodized Aluminum
Spool 416 Stainless Steel
Seals Self-lubricating Buna-N
Operating Temperature -20°F to +160°F


Model Number

Primary Actuator **Secondary Actuator Model Number
3 Way 4 Way
Plain Extension Spring M3820301 M3840301
No Spring M3820302 M3840302
Threaded Extension Spring M3820401 M3840401
No Spring M3820402 M3840402
Mechanically Detented Threaded Extension None M3820423 M3840423
Cam over Center Spring M3821001 M3841001
Pilot* M3821013 M3841013
Cam off Center Spring M3821101 M3841101
Pilot* M3821113 M3841113
One-way Cam Spring M3821401 M3841401
Pilot* M3821413 M3841413
*For maximum life, the pilot air should be restricted.
**All models without return springs must be mounted with the spool in the horizontal position.