Mars 33243 Relief Valve, 3/4″, 55 PSI, 1,250,000 BTU/h, 790-3/4-55

Description

Mars 33243 Pressure Relief Valve — Model 790-3/4-55

The Mars 33243 (Model 790-3/4-55) is a dependable pressure relief valve engineered for boiler and hydronic heating system protection. With a 3/4″ connection size, a factory-set relief pressure of 55 PSI, and a rated capacity of 1,250,000 BTU/h, this valve is built to handle the demands of commercial and residential heating applications where precise overpressure protection is essential.

Key Specifications

• Manufacturer Part Number: 33243
• Model: 790-3/4-55
• Connection Size: 3/4″
• Set Pressure: 55 PSI
• Rated Capacity: 1,250,000 BTU/h
• Brand: Mars

Features & Benefits

• Factory-set at 55 PSI for consistent, reliable overpressure protection
• High BTU/h capacity rating of 1,250,000 BTU/h suits a wide range of heating system sizes
• 3/4″ connection size for straightforward installation into standard boiler and hydronic piping
• Designed to open automatically when system pressure exceeds the set point, safeguarding equipment and personnel
• Durable construction suitable for demanding HVAC and hydronic heating environments

Typical Applications

• Residential and light commercial boiler systems
• Hydronic heating systems
• Hot water heating equipment requiring pressure relief protection