Page 135 - ParkerBrassCatalog2010

Parker Hannifn Corporation
Parker Brass Products Division
Otsego, Michigan
C31
C
General Information
Parker offers two styles of Non-Return valves, In-Line, tube to tube, and
a threaded version with NPT male threads. Their extreme compactness
and light weight make them suitable as a safety item in compressed air
circuits.
The body of the ftting is marked with an arrow to indicate the direction
of fow.
General Principle
Parker Non-Return Valves allow air to pass in one direction while
blocking fow in the other direction. A pressure of more than 7 psi will
overcome the spring pressure, which is keeping the valve closed, thus
allowing the passage of air.
Valve Specifcations
MaximumWorking Pressure: 145 PSI
Operating Temperature: +30° to +160° F
Body Material: Nylon / Nickel-Plated Brass Body
Non-Return Valves