Ball check valve CKFA series

miniaturestainless steel

This miniature check valve is only 0.187 inches in diameter and 0.62 inches in length. This valve features an economical ball-style design allowing free flow in one direction and preventing flow in the other direction. It is ideal for applications with flow rates up to 0.8 GPM. An integral safety screen is available for increased protection against contamination. - Ball-Style Check Valves - Diameter: 0.187 inches - Lohm Rate: 400 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 20 psid and Greater: Unscreened: 400 Lohms, Screened: 460 Lohms - Nominal System Pressure: Up to 3000 psi - Nominal Weight: Unscreened: 1.5 grams, Screened: 2.3 grams - Available Screen Hole Size: 0.008 inches Nominal - Test Fluid: MIL-PRF-83282 at 85°F Materials - Body: 303 CRES, QQ-S-763C - Pin: 303 CRES, QQ-S-763C - Spring: 17-7PH CRES, AMS 5678 - Ball: 440C CRES, AMS 5630 - Ball Follower: 303 CRES, QQ-S-763C - Spring Seat: 303 CRES, QQ-S-763C - Cage: 303 CRES, QQ-S-763C - Screen (Screened Version Only): 304L CRES, ASTM A 666 - Braze (Screened Version Only): AMS 4774 Finish: All CRES parts passivated. Pins are prewaxed. Do not degrease. Do not lubricate. Part Numbers & Specifications - CKFA1876005A: Cracking Pressure 5 ± 3, 400 Lohms Maximum, Forward - CKFA1871001A: Cracking Pressure 1 ± 0.5, 400 Lohms Maximum, Forward - CKRA1876005A: Cracking Pressure 5 ± 3, 400 Lohms Maximum, Reverse - CKRA1871001A: Cracking Pressure 1 ± 0.5, 400 Lohms Maximum, Reverse - CKFA1875005A: Cracking Pressure 5 ± 3, 460 Lohms Maximum, 0.008, Forward - CKFA1875001A: Cracking Pressure 1 ± 0.5, 460 Lohms Maximum, 0.008, Forward - CKRA1875005A: Cracking Pressure 5 ± 3, 460 Lohms Maximum, 0.008, Reverse - CKRA1875001A: Cracking Pressure 1 ± 0.5, 460 Lohms Maximum, 0.008, Reverse Replacement Parts & Accessories - CUTA1870104C: Installation / Extraction Tool Set - JETA1870003A: Replacement Pin - Flow curves and cross-section views available for both screened and unscreened configurations. - Dimensional and installation hole details provided for reference (all dimensions in inches). Key Product Facts - Ball-Style Check Valves - Diameter: 0.187 inches - Lohm Rate: 400 Lohms max - Operating Pressures: Up to 3000 psi - Leakage: 1 drop / hour at 3000 psi Technical / Performance Specifications - 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 20 psid and Greater: Unscreened: 400 Lohms, Screened: 460 Lohms - Nominal System Pressure: Up to 3000 psi - Nominal Weight: Unscreened: 1.5 grams, Screened: 2.3 grams - Available Screen Hole Size: 0.008 inches Nominal - Test Fluid: MIL-PRF-83282 at 85°F