Poppet check valve CPFA series

miniaturestainless steelPTFE

This miniature, pilot-operated check valve is only 0.25 inches in diameter and 1.25 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: 0.25 inches - Lohm Rate: 300 Lohms max - Operating Pressures: Up to 3000 psi - Leakage: 1 drop / hour at 3000 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: 300 Lohms Maximum - Nominal System Pressure: Up to 5000 psi - Nominal Weight: 7 grams - Test Fluid: MIL-PRF-83282 at 85°F Materials - Body: 304 CRES (AMS 5639) - Springs: 17-7PH CRES (AMS 5678) - Poppet: 15-5PH CRES (AMS 5659) - Pilot Piston: 13-8MO CRES (AMS 5629) - Pin: 17-4PH CRES (AMS 5643) - Piston Seal: Teflon® (AMS 3656) - Compression Seal: Polyamide - Imide (AMS 3670/1) Part Numbers & Specifications - CPFA2507105A: Cracking Pressure 5 ± 3 psid, Min Pilot Ratio 3:1, Piloted Lohm Rate 300 Lohms Maximum, Seal Material Polyimide, Flow Direction Forward - CPRA2507105A: Cracking Pressure 5 ± 3 psid, Min Pilot Ratio 3:1, Piloted Lohm Rate 300 Lohms Maximum, Seal Material Polyimide, Flow Direction Reverse - CPFA2507005A: Cracking Pressure 5 ± 3 psid, Min Pilot Ratio 3:1, Piloted Lohm Rate 300 Lohms Maximum, Seal Material Polyamide - Imide, Flow Direction Forward - CPRA2507005A: Cracking Pressure 5 ± 3 psid, Min Pilot Ratio 3:1, Piloted Lohm Rate 300 Lohms Maximum, Seal Material Polyamide - Imide, Flow Direction Reverse Replacement Parts & Accessories - CUTX0503050B: Installation / Extraction Tool Set - CKFA2500005A: Replacement Pin - CPRA2500009A: Replacement Compression Seal - Flow Curve: Valve Performance on MIL-PRF-83282 at 85°F (see image in secondary images) - Dimensional View: All dimensions are in inches (see image in secondary images) - Installation Hole Details: All dimensions are in inches (see image in secondary images) Key Technical Specifications: - Diameter: 0.25 inches - Length: 1.25 inches - Lohm Rate: 300 Lohms max - Operating Pressure: Up to 3000 psi (nominal system pressure up to 5000 psi) - Leakage: 1 drop/hour at 3000 psi - Cracking Pressure: 5 ± 3 psid - Minimum Pilot Ratio: 3:1 - Nominal Weight: 7 grams - Body Material: 304 CRES - Seal Material: Teflon®, Polyamide-Imide, Polyimide