Fabco® Pulse, Delay, Sequence, Limit, Check & Shuttle Valves

March 25, 2020

Effective immediately, UPS has suspended their service guarantee for all Air Freight shipments. This means that UPS is still making Air Freight shipments in most cases, but this will be dependent upon federal, state, and local regulations, and there may be unexpected delays. Please read the attached statement from UPS for further details.
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UPS Statement
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Item: OS-1


This valve provides a momentary (pulse) output, at its cylinder port, when pressure is applied at its inlet. No additional flow is possible until pressure at the inlet is removed, reset time allowed, and pressure reapplied. Reset time is slightly longer than output pulse time.


Item #OS-1
Units Per Package
Minimum Order1
Approximate Pulse Time @ 80 psi - seconds3/4
Approximate Reset Time @ 80 psi - seconds1
Operating Pressure (p.s.i.)
Port Size1/8 NPT
Shipping Height (Inch)
Shipping Length (Inch)
Shipping Weight (Pound)
Shipping Width (Inch)
Stock ItemYES
Weight - Oz.3.1
Flow Rating (Cv)
Operating Pressure45 to 150 p.s.i.
Shipping Height4 inch
Shipping Length4 inch
Shipping Weight.5 pound
Shipping Width4 inch