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This cartridge safety pressure relief valve offers superior flow capacity for its size. This direct-acting relief valve is specifically designed for installation into plastic housings and fittings. It can be installed in either forward or reverse flow directions. The valve features all stainless steel construction, making it compatible with a wide range of fluids and gases. A high quality metal seat provides low leakage, repeatable cracking pressure, fast response time, low hysteresis, and long life. The valve is 100% functionally tested to ensure performance.
| Characteristic | Specification |
|---|---|
| Full Open Lohm Rate | 140 Lohms |
| Leakage | 10 SCCM (max) at 172 kPa (25 psid) on Air |
| Maximum Working Pressure, Checked Direction | 280 bar |
| Maximum Working Pressure Differential, Flow Direction | 40 bar |
| Installation Force | 625 kgf (max) |
| COMPONENT | MATERIAL |
|---|---|
| Body | 303 Stainless Steel |
| Cage | 305 Stainless Steel |
| Spring | 302 Stainless Steel |
| Ball | 440C 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 |
|---|---|
| CCRT0900170S | Forward 558 LC Series Press-In Installation Tool |
| CCRT0072391S | Reverse 558 LC Series Press-In 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.
