A compact, inline, direct acting poppet check valve suitable for pressure and vacuum applications. Bubble-tight sealing is achieved by a line of contact between a precision machined seat and a standard elastomer O-ring with minimum differential pressure, regardless of mounting attitude.
Floating poppet and fluted retainer design provides laminar flow. Metal-to-metal positive stop ensures long service life. Available in 1/8"–3/4" NPT, Vacuum to 800 PSIG.
- Compact Inline Direct Acting Poppet Design
- Bubble-Tight Sealing — Zero Leakage @ >0.5 PSIG Back Pressure
- Suitable for Pressure and Vacuum Applications (Vacuum to 800 PSIG)
- Floating Poppet and Fluted Retainer for Laminar Flow
- Metal-to-Metal Positive Stop for Long Service Life
- Position Independent — Works in Any Mounting Attitude
- Available in Male×Male, Female×Female, and Female×Male Configurations
- Available in Brass or 316 Stainless Steel
- Wide Selection of Seal Materials
- Available Cleaned & Packaged for Oxygen Service
- Nominal Crack Pressures: 0.15, 1 & 3 PSIG (0.01, 0.07 & 0.21 bar)
- Operating Pressure Range: Vacuum to 800 PSIG (55 bar)
- Proof Pressure: 1200 PSIG (83 bar)
- Leakage: Zero @ >0.5 PSIG Back Pressure (0.03 bar)
- Temperature Rating: -80°F to 375°F (-62°C to 190°C) — based on seal material
- Note: Female×Female and Female×Male configurations available in 1/8" & 1/4" Brass only
- Note: 316 Stainless Steel available in Male×Male 1/8"–1/2" only
- Note: 3/4" size available in Brass only
