Poppet check valve CKFA series

miniature

This miniature check valve is only 0.25 inches in diameter and 0.78 inches in length. This valve features a poppet-style design to maximize the free flow in one direction and prevent flow in the other direction. It is ideal for applications with flow rates up to 6 GPM. - Poppet-Style Check Valves - Diameter: 0.25 inches - Lohm Rate: 50 Lohms max - Operating Pressures: Up to 3000 psi - Leakage: 1 drop / hour at 3000 psi General Performance - Cracking Pressure: 5 ± 3 or 1 ± 0.5 psid - Maximum Leakage in Checked Direction at 5 psid: 1 Drop / Minute - Maximum Leakage in Checked Direction at 1000-3000 psid: 1 Drop / Hour - Lohm Rate at 15 psid and Greater: 50 Lohms Maximum - Nominal System Pressure: Up to 3000 psi - Nominal Weight: 3.8 grams - Test Fluid: MIL-PRF-83282 at 85°F Materials - Body: 304 CRES (AMS 5639) - Pin: 17-4PH CRES (AMS 5643) - Poppet: 15-5PH CRES (AMS 5659) - Spring: 17-7PH CRES (AMS 5678) - Spring Seat: 304 CRES (AMS 5639) - Finish: All CRES parts passivated. Pins are prewaxed. Do not degrease. Do not lubricate. Part Numbers & Specifications - CKFA2506205A: Cracking Pressure 5 ± 3 psid, Lohm Rate 50 Lohms Maximum, Flow Direction Forward - CKFA2506201A: Cracking Pressure 1 ± 0.5 psid, Lohm Rate 50 Lohms Maximum, Flow Direction Forward - CKRA2506205A: Cracking Pressure 5 ± 3 psid, Lohm Rate 50 Lohms Maximum, Flow Direction Reverse - CKRA2506201A: Cracking Pressure 1 ± 0.5 psid, Lohm Rate 50 Lohms Maximum, Flow Direction Reverse Replacement Parts & Accessories - CUTA2500306C: Installation / Extraction Tool Set - CKFA2500005A: Replacement Pin - Flow Curve and performance data available for MIL-PRF-83282 at 85°F - Dimensional and cross-section views available (see images) Key Technical Specifications - Diameter: 0.25 inches - Length: 0.78 inches - Flow Rate: Up to 6 GPM - Cracking Pressure: 5 ± 3 or 1 ± 0.5 psid - Lohm Rate: 50 Lohms Maximum - Operating Pressure: Up to 3000 psi - Leakage: 1 drop/hour at 3000 psi - Nominal Weight: 3.8 grams - Body Material: 304 CRES - Pin Material: 17-4PH CRES - Poppet Material: 15-5PH CRES - Spring Material: 17-7PH CRES - Spring Seat Material: 304 CRES - Finish: All CRES parts passivated, pins prewaxed