Kunkle relief valves

Models 40R, 40RL
Non-code Steam Service, Sentinel Relief Valves

Model Descriptions
Model 40R: 1/2-inch or 3/4-inch male NPT inlet with top discharge to give visible warning of system overpressure.
Model 40RL: Same as Model 40R with plain lift lever.

Note: For other valves suitable for sentinel (warning) service, see Model 1 and Models 264, 265

Pressure and Temperature Limits
1 to 400 psig -60° to 850°F

Applications

Sentinel (warning) on steam equipment. Intended as audible warning device, not for pressure relief.

Steam turbines.

Options
No Options Available

Features and Benefits

All parts are Stainless Steel

Precision lapped beveled seats for optimum performance.

Pivot between spring and disc corrects misalignment and compensates for spring side thrust.