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This threadless, cartridge safety poppet pressure relief valve is designed to provide fast opening rates, stable flows, low hysteresis, quiet operation, and high cracking pressures. The 8 mm relief valve’s locking end uses the field-proven Lee Controlled Expansion Principle to provide secure retention and eliminate the need for threads, O-rings, or secondary retainers. This direct-acting relief valve features all stainless steel construction, making it compatible with a wide range of fluids. The valve is 100% functionally tested to ensure performance.
| Characteristic | Specification |
|---|---|
| Full Open Lohm Rate | As low as 150 Lohms |
| Uprun Leakage | Valve will flow less than 5.0 or 10.0 cc/min at 90% of nominal cracking pressure (see Part Numbers tab) |
| Flow Point | Valve flow point at 130% or 140% of nominal cracking pressure (see Part Numbers tab) |
| Reseat | Valve will flow less than 0.05 LPM at 88% of nominal cracking pressure |
| Maximum Working Pressure Checked Direction | 400 bar |
| Maximum Working Pressure Differential Flow Direction | 400 bar |
| Installation Force | 6.7 kN max. |
| COMPONENT | MATERIAL |
|---|---|
| Body | 303 Stainless Steel |
| Stop | 416 Stainless Steel |
| Pin | 416 Stainless Steel |
| Spring | 17-7 Stainless Steel |
| Poppet | 416 Stainless Steel |
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 |
|---|---|
| CCRT0900150S | 8 mm Valve Installation Tool |
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.
