Quality, Integrity, Knowledge, and Service is what we offer!
Models 230, 330, 330S, 333S
1/4-inch male NPT - 300 to 1500 psig.
Features
- Lightweight aluminum construction. Resistant to environmental and internal corrosion.
- Aluminum parts are anodized for corrosion resistance.
- Model 230 is direct spring-loaded design with synthetic disc insert.
- Seat tightness increases to a maximum as inlet pressure approaches the opening pressure.
Model 230
| Pressure Limit: | 300 to 1500 psig |
| Temperature Limit: | -20° to 185° F |
Applications
- Multi-stage high pressure compressors, intercoolers and aftercoolers.
- High pressure receivers and storage bottles.
- Thermal expansion relief.
1/4-inch male NPT - 300 to 1500 psig.
KUKMC-230_330.pdf860.94 KB 
Model 330
| Pressure Limit: | 1000 to 5500 psig |
| Temperature Limit: | -20° to 185° F |
Applications
- Multi-stage high pressure compressors, intercoolers and aftercoolers.
- High pressure receivers and storage bottles.
- Thermal expansion relief.
1/4-inch male NPT - 1000-5500 psig. Aluminum housing, SS trim (seat and disc with synthetic insert). Sidewall discharge.
KUKMC-230_330_1.pdf860.94 KB 
Model 330S
| Pressure Limit: | 2000 to 6500 psig |
| Temperature Limit: | -20° to 185° F |
Applications
- Multi-stage high pressure compressors, intercoolers and aftercoolers.
- High pressure receivers and storage bottles.
- Thermal expansion relief.
Same as Model 330 except SS body suitable for 2000-6500 psig.
KUKMC-230_330_3.pdf860.94 KB 
Model 333S
| Pressure Limit: | 2000 to 6500 psig |
| Temperature Limit: | -20° to 185° F |
| Max. Back Pressure: | 100 psig |
Applications
- Multi-stage high pressure compressors, intercoolers and aftercoolers.
- High pressure receivers and storage bottles.
- Thermal expansion relief.
Same as 330S except 1/2-inch female NPT side outlet. Pressure-tight cap.
KUKMC-230_330_5.pdf860.94 KB 