Technical selection
Specifications and configuration
Reference — 8 mm Zero Leak Check Valve
| Parameter | Documented value / configuration |
|---|---|
| Mounting configuration | Threadless cartridge insert for a metal housing; elastomeric valve seat |
| Part diameter | 7.95 mm |
| Listed flow resistance | 250 LohmsConditions: scope: maker's listed resistance, not a whole-loop pressure drop |
| Listed component materials | 303 stainless body, 416 stainless cage and pin, 302 stainless spring, 440C stainless ball; EPDM or FKM seal options |
| Example part cracking pressure | CZRM8001004S: reverse-flow, FKM seal, 4 ± 3 kPa cracking pressure measured by the manufacturer's air-flow definitionConditions: scope: One listed part example; not a universal series setting or liquid-coolant qualification |
Manufacturer series reference. Confirm the exact order code, mating parts and stated conditions for the quoted configuration.
Overview
This threadless metal-housing insert permits forward flow and blocks reverse flow in a suitably designed liquid branch.
Construction and interfaces
The original maker lists a 7.95 mm body diameter and elastomeric valve seat. The product photo depicts the complete cartridge from two angles.
Selection
Specify the cavity, fluid, desired forward-flow resistance and reverse-leakage criterion together; 250 Lohms is the maker's listed resistance, not a system pressure-drop guarantee.
Configuration options
Seat compound and cracking behavior must be confirmed for the selected order configuration and coolant.
Application limits
The manufacturer's 'Zero Leak' family name is not a promise of zero system leakage; housing design and acceptance test remain project-specific.
