Poppet check valve CPRA series

pilot-operated

This high pressure, pilot-operated check valve is only 0.375 inches in diameter and 2 inches in length. The valve acts like a normal check valve until pressure is applied to the pilot port, at which point the valve allows flow in the direction that would normally be blocked. - Pilot-Operated Check Valves - Diameter: 0.375 inches - Lohm Rate: 110 Lohms max - Operating Pressures: Up to 5000 psi - Leakage: 1 drop / hour at 5000 psi General Performance - Cracking Pressure: 5 ± 3 psid - Minimum Pilot Ratio: 3:1 - Maximum Leakage in Checked Direction at 5 psid: 1 Drop / Minute - Maximum Leakage in Checked Direction at 1000-5000 psid: 1 Drop / Hour - Pilot Piston Leakage: 1 Drop / Minute Maximum at 5000 psid - Lohm Rate at 15 psid and Greater: 110 Lohms Maximum - Nominal System Pressure: Up to 5000 psi - Nominal Weight: 20 grams - Test Fluid: MIL-PRF-83282 at 85°F Materials - Body Front: 304 CRES, AMS 5639 - Body Center: 15-5 PH CRES, AMS 5659 - Body Rear: 304 CRES, AMS 5639 - Springs: 17-7 PH CRES, AMS 5678 - Poppet: 15-5 PH CRES, AMS 5659 - Pilot Piston: 15-5 PH CRES, AMS 5659 - Pin: 17-4 PH CRES, AMS 5643 - Compression Seal: Polyimide Finish: All CRES parts passivated. Pins are prewaxed. Do not degrease. Do not lubricate. Part Numbers & Specifications - CPRA3757105A: Cracking Pressure 5 ± 3 psid, Min Pilot Ratio 3:1, Piloted Lohm Rate 110 Lohms Maximum, Flow Direction Reverse - CPFA3757105A: Cracking Pressure 5 ± 3 psid, Min Pilot Ratio 3:1, Piloted Lohm Rate 110 Lohms Maximum, Flow Direction Forward Replacement Parts & Accessories - CUTA3750306C: Installation / Extraction Tool Set - SHBA3750003A: Replacement Pin - SVDA3750009A: Replacement Compression Seal - Flow Curve: Valve Performance on MIL-PRF-83282 at 85°F (see image) - Cross Section Views: Free Flow Forward and Reverse Configurations (see images) - Dimensional View: All dimensions are in inches (see image) - Installation Hole Details: All dimensions are in inches (see image) Key Technical Specifications: - Diameter: 0.375 inches - Length: 2 inches - Operating Pressure: Up to 5000 psi - Lohm Rate: 110 Lohms max - Leakage: 1 drop/hour at 5000 psi - Cracking Pressure: 5 ± 3 psid - Minimum Pilot Ratio: 3:1 - Nominal Weight: 20 grams - Test Fluid: MIL-PRF-83282 at 85°F