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Models 230, 330, 330S,
333S - Relief Valves
ASME Section VIII, Gas, 'UV' National Board Certified
Model Descriptions
- Model 230: 1/4-inch Male NPT - 300/1500
psig.
- Model 330: 1/4-inch Male NPT -
1000/5500 psig. Aluminum housing, SS trim (seat and disc
with synthetic insert). Sidewall discharge.
- Model 330S: Same as Model 330 except SS
body suitable for 2000/6500 psig.
- Model 333S: Same as 330S except
1/2-inch Female NPT side outlet. Pressure-tight cap.
Pressure and Temperature
Limits
- Model 230: 300 to 1500 psig -20° to
185°F
- Model 330: 1000 to 5500 psig -20° to
185°F
- Model 330S: 2000 to 6500 psig -20° to
185°F
- Model 333S: 2000 to 6500 psig -20° to
185°F
Applications
- Multi-stage high pressure compressors, intercoolers and
aftercoolers.
- High pressure receivers and storage bottles.
- Thermal expansion relief.
Options
No Options Available
Features and Benefits
- 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.
- Model 330 series incorporates a
differential mechanism which maintains a predetermined
seat-contact load.
- The full spring load is never imparted
to synthetic disc insert (models 330, 330S, and 333S only).
- Seat tightness increases to a maximum
as inlet pressure approaches the opening pressure.
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