Poppet check valve CPRA series

pilot-operated

This high pressure, pilot-operated check valve is only 0.5 inches in diameter and 2.76 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: 0.5 inches - Lohm Rate: 60 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: 60 Lohms Maximum - Nominal System Pressure: Up to 5000 psi - Nominal Weight: 49 grams - Test Fluid: MIL-PRF-83282 at 85°F Materials - Body Front: 304 CRES (AMS 5639) - Body Center: 15-5PH CRES (AMS 5659) - Body Rear: 304 CRES (AMS 5639) - Poppet: 15-5PH CRES (AMS 5659) - Springs: 17-7PH CRES (AMS 5678) - Pilot Piston: 13-8MO CRES (AMS 5629) - Pin: 15-5PH CRES (AMS 5659) - Compression Seal: Polymer - Finish: All CRES parts passivated. Pins are prewaxed. Do not degrease. Do not lubricate. Part Numbers & Specifications - CPRA5007005A: Cracking Pressure 5 +/- 3, Min Pilot Ratio 3:1, Piloted Lohm Rate 60 Lohms Maximum, Flow Direction Reverse - CPFA5007005A: Cracking Pressure 5 +/- 3, Min Pilot Ratio 3:1, Piloted Lohm Rate 60 Lohms Maximum, Flow Direction Forward Replacement Parts & Accessories - CUTA5000206C: Installation / Extraction Tool Set - CHFA5000003A: Replacement Pin - SVDA5000009A: Replacement Compression Seal - Flow Curve: Valve Performance on MIL-PRF-83282 at 85°F - Dimensional View: All dimensions are in inches. - Installation Hole Details: All dimensions are in inches. Key Product Facts: - Pilot-Operated Check Valves - Diameter: 0.5 inches - Lohm Rate: 60 Lohms max - Operating Pressures: Up to 5000 psi - Leakage: 1 drop / hour at 5000 psi Technical Hydraulic Handbook of Aerospace, Energy, and Motorsport Solutions Page E86-E87 Characteristics / Technical Specifications: - Diameter: 0.5 inches - Length: 2.76 inches - 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: 60 Lohms Maximum - Nominal System Pressure: Up to 5000 psi - Nominal Weight: 49 grams - Test Fluid: MIL-PRF-83282 at 85°F - Body Front: 304 CRES (AMS 5639) - Body Center: 15-5PH CRES (AMS 5659) - Body Rear: 304 CRES (AMS 5639) - Poppet: 15-5PH CRES (AMS 5659) - Springs: 17-7PH CRES (AMS 5678) - Pilot Piston: 13-8MO CRES (AMS 5629) - Pin: 15-5PH CRES (AMS 5659) - Compression Seal: Polymer - Finish: All CRES parts passivated. Pins are prewaxed. Do not degrease. Do not lubricate.