Fisher HSR-BHBAMYN Internal Relief Valve 6"-8" WC, 1/2" Orifice 3/4" NPT

The Fisher HSR-BHBAMYN 3/4" NPT Internal Relief Valve is a high quality designed valve designed to control pressure in HVAC systems. It has a 3/4" NPT connection and maintains a stable pressure range of 6"-8" WC with a 1/2" orifice. This is the perfect valve for controlling overpressure and to keep the gas lines or system safe. Periodically used in HVAC systems to ease pressure excesses and for a smooth operation. An internal relief valve is vital to system efficiency, protecting sensitive components and extending the life of HVAC systems.