This miniature, zero-leak check valve is only 0.375 inches in diameter and 1.21 inches in length. This check valve utilizes an elastomeric seat material to provide zero leakage in the checked direction. It is ideal for pneumatic and hydraulic applications with flow rates up to 6 GPM.
- Poppet-Style Check Valves
- Diameter: 0.375 inches
- Lohm Rate: 45 Lohms max
- Operating Pressures: Up to 5000 psi
- Leakage: 0 bubbles / minute
General Performance
- Cracking Pressure: 8 psid Maximum
- Leakage in Checked Direction: Zero Leakage From 5-5000 psid
- Lohm Rate at 15 psid and Greater: 45 Lohms Maximum
- Nominal System Pressure: Up to 5000 psi
- Nominal Weight: 11 grams
- Test Fluid: Air at 70°F
Materials
- Body: 15-5PH CRES (AMS 5659)
- Poppet: 15-5PH CRES (AMS 5659)
- Seat: 15-5PH CRES (AMS 5659)
- Spring: 17-7PH CRES (AMS 5678)
- Pin: 17-4PH CRES (AMS 56743)
- Elastomeric Seat Option 1: Fluorocarbon (AMS-R-83485 or AMS-R-83248)
- Elastomeric Seat Option 2: EPDM (MIL-R-83285)
Finish: All CRES parts passivated. Pins are prewaxed. Do not degrease. Do not lubricate.
Part Numbers & Specifications
- CSRA2506005A: Cracking Pressure 5 ± 3 psid, 180 Lohms Maximum, Fluorocarbon, Reverse, Temp Range 0 / +395°F
- CSFA2506005A: Cracking Pressure 5 ± 3 psid, 180 Lohms Maximum, Fluorocarbon, Forward, Temp Range 0 / +395°F
- CSRA2506105A: Cracking Pressure 5 ± 3 psid, 180 Lohms Maximum, EPDM, Reverse, Temp Range -65 / 290°F
- CSFA2506105A: Cracking Pressure 5 ± 3 psid, 180 Lohms Maximum, EPDM, Forward, Temp Range -65 / 290°F
Replacement Parts & Accessories
- CUTA3750306C: Installation / Extraction Tool Set
- PHRA3750003A: Replacement Pin
- Flow Curve and Cross Section Views available in the image gallery.
- CAD Envelope and Installation Hole Details available in the image gallery.
- Handbook reference: Technical Hydraulic Handbook of Aerospace, Energy, and Motorsport Solutions Page E54-E55.
Key Technical Specifications:
- Diameter: 0.375 inches
- Length: 1.21 inches
- Flow Rate: Up to 6 GPM
- Operating Pressure: Up to 5000 psi
- Cracking Pressure: 8 psid max
- Lohm Rate: 45 Lohms max (general), 180 Lohms max (part numbers)
- Leakage: Zero leakage (0 bubbles/min)
- Seat Material: Fluorocarbon or EPDM
- Body Material: 15-5PH CRES
- Spring Material: 17-7PH CRES
- Pin Material: 17-4PH CRES
- Nominal Weight: 11 grams
- Test Fluid: Air at 70°F