This miniature check valve is only 0.5 inches in diameter and 1.5 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 25 GPM.
- Poppet-Style Check Valves
- Diameter: 0.5 inches
- Lohm Rate: 12 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: 12 Lohms Maximum
- Nominal System Pressure: Up to 3000 psi
- Nominal Weight: 20 grams
- Test Fluid: MIL-PRF-83282 at 85°F
Materials
- Body: 304 CRES (AMS 5639)
- Pin: 15-5PH CRES (AMS 5659)
- Poppet: 15-5PH CRES (AMS 5659)
- Spring Seat: 303 CRES (QQ-S-763C)
- Spring: 17-7PH CRES (AMS 5678)
- Finish: All CRES parts passivated. Pins are prewaxed. Do not degrease. Do not lubricate.
Part Numbers & Specifications
- CKFA5006205A: Cracking Pressure 5 ± 3 psid, Lohm Rate 12 Lohms Maximum, Flow Direction Forward
- CKFA5006201A: Cracking Pressure 1 ± 0.5 psid, Lohm Rate 12 Lohms Maximum, Flow Direction Forward
- CKRA5006205A: Cracking Pressure 5 ± 3 psid, Lohm Rate 12 Lohms Maximum, Flow Direction Reverse
- CKRA5006201A: Cracking Pressure 1 ± 0.5 psid, Lohm Rate 12 Lohms Maximum, Flow Direction Reverse
Replacement Parts & Accessories
- CUTA5000106C: Installation / Extraction Tool Set
- CKFA5000003A: Replacement Pin
Flow curve, cross-section, dimensional, and installation hole views available as images (see below).
For more information, refer to the Technical Hydraulic Handbook of Aerospace, Energy, and Motorsport Solutions (see documents).
Key Technical Specifications
- Valve Type: Poppet-style check valve
- Diameter: 0.5 inches
- Length: 1.5 inches
- Flow Rate: Up to 25 GPM
- Lohm Rate: 12 Lohms max
- Operating Pressure: Up to 3000 psi
- Leakage: 1 drop/hour at 3000 psi
- Nominal Weight: 20 grams
- Body Material: 304 CRES
- Pin/Poppet Material: 15-5PH CRES
- Spring Seat: 303 CRES
- Spring: 17-7PH CRES