Products

Kunkle Valve Model 230, 330, 330S, and 333S gas relief valves are ASME Section VIII, Gas, “UV” National Board Certified. PED certified for non-hazardous gas.

• Improved Soft Seat option – provides repeatable leak-tight performance before and after each relief cycle. Allows for reduced maintenance costs, multiple cycles with tight shut-off, and improved seating integrity (Models 330, 330S, and 333S)
• Lightweight aluminum construction. Resistant to environmental and internal corrosion
• Model 230 (non-code) 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
• Each Kunkle valve is tested and inspected for pressure setting and leakage