The BERMAD model FP- 3HC-0 is a direct acting, spring loaded, diaphragm type, relief valve. The single port is held closed buy the force of the adjustable spring located above the pressure sensing diaphragm. When the force of the pressure sensed under the diaphragm exceeds the force of the spring the valve will open to relieve pressure and will close tight when pressure falls below the pre-set value. This FM approved and UL listed valve is well suited for use in protecting wet pipe systems from overpressure that occurs from temperature fluctuations and for fire pump casing relief as required by the NFPA 20 and NFPA 13 standards.
PRODUCT FEATURES & BENEFITS
Tight closing with accurate pressure control
Fast immediate response to pressure rise
Easy in-field pressure setting adjustment
UL listed, FM Approved
Available in corrosion resistant materials
Tamper-proof cap
TYPICAL PRODUCT APPLICATIONS
Pressurized sprinkler systems
Fusible plug pilot lines
Thermal release for wet piping systems
Pressure relief for pressure control valves
Fire pump casing relief
Jockey pump overpressure