Follow The Lee Company
This threadless, cartridge safety pressure relief valve is constructed with medical grade 316L stainless steel and a ceramic ball for improved compatibility with aggressive fluids like hydrogen. The 5.5 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 valve features all stainless steel construction including a high quality metal seat that delivers low leakage, repeatable cracking pressure, fast response time, low hysteresis, and long life. The valve is 100% functionally tested to ensure performance.
| Characteristic | Specification |
|---|---|
| Lohm Rate | 250 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 | 316L Stainless Steel |
| Cage | 316L Stainless Steel |
| Pin | 316L Stainless Steel |
| Spring | 316L Stainless Steel |
| Ball | Ceramic |
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 |
|---|---|
| CCRT0900120S | 558 Series 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.
Your download has started.
We’re always ready to be your engineering partner. Fill out this form below so we can provide the solution you need.
We have received your inquiry and a member of our team will be in contact shortly to provide more information. Thank you for contacting The Lee Company!
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.
