1/4" Male NPT Check Valve

“3047” Series check valves allow free flow in one direction and provide positive checked (zero flow) in the reverse direction. This valve is available with a male 1/4" NPTF connection and is recommended for pneumatic service. Valve Specifications Maximum Operating Pressure: 250 PSIG Cracking Pressure: 1 to 2 PSIG Operating Temperature: Standard: 0° to 180° F* Component Materials Body Material: Brass Internal Components : Brass / Stainless Steel Seals: Nitrile * Ambient temperatures below freezing require moisture-free air. Ambient temperatures below freezing and above 180° require lubricants especially selected for suitability at these temperatures. Pneumatic valves should be used with filtered and lubricated air.