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This high pressure, pilot-operated check valve is only 0.25 inches in diameter and 1.5 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.
| Characteristic | Specification |
|---|---|
| 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 |
| PART | MATERIAL | SPECIFICATION |
|---|---|---|
| Body | 304 CRES | AMS 5639 |
| Poppet | 15-5PH CRES | AMS 5659 |
| Springs | 17-7PH CRES | AMS 5678 |
| Pilot Piston | 13-8 MO CRES | AMS 5629 |
| Pin | 17-4PH CRES | AMS 5643 |
| Compression Seal | Polyimide or Polyamide-Imide | - |
This table below contains the part numbers and technical specifications for this product. If you have specific questions, need a quote, or would like to request a handbook or drawing, click the red request button in the column on the far right.
| PART NUMBER | DESCRIPTION |
|---|---|
| CUTX0503050B | Installation / Extraction Tool Set |
| CHFA2500003A | Replacement Pin |
| CPRA2500009A | Replacement Polyamide-imide Compression Seal Part Number |
| CPRA2500109A | Replacement Polyimide Compression Seal Part Number |
From plugs to solenoid valves, there’s a vast array of products that The Lee Company can offer. If you’d like to discuss the best solution for your specific application or to learn more about our capabilities, use-cases, or quality standards, contact your local Lee sales engineer.
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The Lee Company has developed the Lohm Laws for defining and measuring resistance to fluid flow. The Lohm is defined such that 1 Lohm will flow 100 GPM of water with a pressure drop of 25 psi at a temperature of 80°F.
Always verify flow calculations by experiment.
*There are many parameters to consider when determining V-Factor. Click here for more information.
