
Needle valves & fittings
HOP-211 · K004 Check valves
Compressor check valves that stop backflow to the pump.
HOP-211 B and C bodies for compressor discharge lines, and the in-line K004.
Specifications
| Sizes | ¼″ – 1″ |
|---|---|
| Materials | Brass / bronze |
Made and tested by Hopeet in Taiwan. Every valve is set and leak-tested before it ships, and its test report can be looked up by serial number.



