Brand new, certified 1/4" NPT 165 PSI Industrial air compressor / tank pressure safety relief valve. Also known as a "Pop Off" or "Blow Off" valve. This relief valve is manufactured in the United States and is stamped with "UV" & "NB" symbols. The relief pressure of this valve is set at 165 PSI and is accurate within + or - 3% of the set pressure. 

Specifications:

• This valve will relieve 145 SCFM
• Valve Inlet Threads: 1/4" Male NPT (Measure about 1/2" in diameter)
• Total Valve Length: 1-3/4"
• Installation Wrench Size: 11/16"
• Features a Silicone Rubber Soft Seat Relief Valve to Prevent Leaks
• Max Temperature: 250° F
• Solid Brass Construction
• Made in the USA