This Control Devices SV-120 ASME security valve has a brass body, a 120 psi relief pressure, a 1/4" male NPT threaded inlet connection, and a stainless steel pull ring for manual pressure relief. The valve's brass body, brass valve seat, and the zinc plated steel spring withstand rust and can be utilized in operating temperatures as much as 250 degrees F. The preset relief pressure is precise to within +/- 3 percent and a silicon O-ring supplies a leak-proof seal to within +/- 10 percent of the relief pressure. This security valve is American Society of Mechanical Engineers (ASME) security rated and displays the UV mark for pressure vessel security valves. It likewise displays the NB mark for accreditation in accordance with NB-501, National Board Certification of Pressure Relief Devices. This security valve has a 116 cubic feet per minute (CFM) flow rate and is suitable for low capability pressure relief applications such as in house construction air compressors. Relief valves eliminate excess pressure or vacuum from a system. The valve openings permit fluids or gases to leave to decrease pressure, and after that close once the valve reaches the reseating pressure limit. They likewise alleviate excess vacuum by opening to release a gas into the system and after that closing after it reaches its low-pressure limit. Some relief valves have an adjustment system to set the pressure where the valve opens, making it suitable for different applications. Relief valves are rated inning accordance with the volume of liquid or gas that can flow through them and the product that the valve is constructed from must appropriate for the fluid or gas, which may be destructive or at an extreme temperature, where it runs. Relief valves are utilized in a variety of applications, such as air compressors, petrochemical and chemical production, gas processing, and power generation.
Relief pressure preset to 120 psi with flow rate of 47 SCFM
1/4" male NPT threaded inlet connection
Brass construction and stainless steel spring for corrosion resistance
250 degrees F maximum temperature for use in high temperature applications
ASME safety rated with UV and NB marks