Tank protection valves are indispensable safety devices in industrial tank systems, functioning like 24/7 "security sentries." When abnormal pressure builds up inside a tank, they automatically open to release pressure, preventing overpressure damage. Conversely, if a vacuum forms in the tank, they promptly allow air intake to prevent collapse from atmospheric pressure.
Dual rail system for smooth stroke and low wear
Leakage is much less than API2000 standard and maintains high setting accuracy (±3%).
Full opening at 10% overpressure
Spool and seat assemblies are field replaceable
Supports ANSI, DIN, and HG/T20592~20635~2009 flanges

Product Overview
The Model 5100 end-of-pipe Pressure Vacuum Relief Valve maintains a seal. When system pressure or vacuum exceeds the valve's setting, the spool lifts and the seal between the seat and spool is broken, releasing the pressure or vacuum buildup, and once the release is complete, the valve maintains the seal again.
Installation position: connected to the tank through the flange, the valve is opened and discharged directly to the atmosphere
Specifications
Company Profile
The company has a number of domestic and foreign qualifications, including ISO9001,the People's Republic of China special equipment manufacturing license, ASME,NB,CE,PED,ATEX,CNAS,CCS,DNV,GL,EAC certifications.The main products cover three major application scenario,vapour control, overpressure relief and dust explosion protection, including flame arresters, pressurevacuum relief valve, rupture discs, safety valves, bending pin valves, dust explosion protection equipment, etc.
If you are interested in tank protection valves, we cordially invite you to visit the Basco R&D and Manufacturing Center for an on-site inspection!
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2025-11-10Add: South Side of Shidai Road ,Quanshan District,Xuzhou City, Jiangsu Province,China
Tel: 0516-85776002
Mail: sales@basco.cc
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