Model 40R and 40RL are suitable for sentinel warning on stream equipment, including steam turbines. They are intended as audible warning devices for not for pressure relief.

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.

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.