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Control Devices ST25-1A050 St Series Brass Soft Seat Asme Safety Valve 50 Psi Set Pressure 1/4 Male Npt

4.3 (8) Write Review
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$7.74

$ 3 .99 $3.99

In Stock

About this item

  • Relief pressure preset to 50 psi with flow rate of 53 cfm
  • 1/4 NPT threaded inlet connection with Vibra-Seal thread lock
  • Brass construction and music wire spring for corrosion resistance
  • 250 F maximum temperature for use in high temperature applications
  • ASME safety rated with UV and NB marks


This Control Devices ST25-1A050 ASME safety valve has a brass body, a 50 psi relief pressure, a 1/4 inch 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 resist corrosion and can be used in operating temperatures up to 250 F. The preset relief pressure is accurate to within +/- 3 percent and a silicon O-ring provides a leak-proof seal to within +/- 10 percent of the relief pressure. This safety valve is American Society of Mechanical Engineers (ASME) safety rated and displays the UV mark for pressure vessel safety valves. It also displays the NB mark for certification in accordance with NB-501, National Board Certification of Pressure Relief Devices. This safety valve has a 52.9023 cubic feet per minute (CFM) flow rate and is suitable for pressure relief applications such as in home construction or industrial air compressors.


Rick frame
Reviewed in the United States on January 4, 2024
Works like it is supposed to
Tuggo
Reviewed in the United States on November 10, 2023
We have a pneumatic mast with 35 psi working pressure. The old pop off valve was good for 150 psi. I'm sure if we got that high bad things would have already happened if the valve opened at 151 psi. Installed with low pressure gauge so we can better see these low pressures and keep things where they should be.
christopher b loucks
Reviewed in the United States on May 12, 2022
 
Steve N
Reviewed in the United States on October 15, 2022
Couldn’t get one local in a timely matter. Got this one Next day. Waited over a month to leave a review to make sure it held up, have had zero issues with it would buy again if was ever in a jam.
Justin Jackson
Reviewed in the United States on August 9, 2021
if you actually need 1/4" go somewhere else.
Gene M Davis
Reviewed in the United States on May 23, 2020
Did what I expected.
Xorxe
Reviewed in the United States on November 9, 2019
exactly as described
Craig
Reviewed in the United States on March 30, 2017
good pop off