Poppet check valve CHFA series

miniaturebackflowhigh-pressure

This miniature, high pressure check valve is only 0.375 inches in diameter and 1.37 inches in length. Its robust design prevents backflow in high pressure systems up to 8000 psi. It is ideal for applications with flow rates up to 11 GPM. - Poppet-Style Check Valves - Diameter: 0.375 inches - Lohm Rate: 27 Lohms max - Operating Pressures: Up to 8000 psi - Leakage: 1 drop / hour at 8000 psi General Performance - Cracking Pressure: 5 ± 3 psid or 1 ± 0.5 psid - Maximum Leakage in Checked Direction at 5 psid: 1 Drop / Minute - Maximum Leakage in Checked Direction at 1000-8000 psid: 1 Drop / Hour - Lohm Rate at 15 psid and Greater: 27 Lohms Maximum - Nominal System Pressure: Up to 8000 psi - Nominal Weight: 13 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 - CHFA3756505A: Cracking Pressure 5 ± 3 psid, Lohm Rate 27 Lohms Maximum, Forward - CHFA3756501A: Cracking Pressure 1 ± 0.5 psid, Lohm Rate 27 Lohms Maximum, Forward - CHRA3756505A: Cracking Pressure 5 ± 3 psid, Lohm Rate 27 Lohms Maximum, Reverse - CHRA3756501A: Cracking Pressure 1 ± 0.5 psid, Lohm Rate 27 Lohms Maximum, Reverse Replacement Parts & Accessories - CUTA3750306C: Installation / Extraction Tool Set - PHRA3750003A: Replacement Pin - Flow Curve and cross-section images available (see images section) - CAD envelope and installation hole details available (see images section) - Handbook reference: Technical Hydraulic Handbook of Aerospace, Energy, and Motorsport Solutions Page E74-E75 Key Technical Specifications - Diameter: 0.375 inches - Length: 1.37 inches - Max Pressure: 8000 psi - Max Flow Rate: 11 GPM - Nominal Weight: 13 grams - Cracking Pressure: 5 ± 3 psid or 1 ± 0.5 psid - Lohm Rate: 27 Lohms Maximum - Leakage: 1 drop/hour at 8000 psi - 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