Barrel overpressure, vacuum, and underpressure valve
This combined safety valve effectively protects IBC containers and drums with 2-inch fine thread connections (BSP or R2 inch) from pressure fluctuations during filling and emptying. It combines overpressure, underpressure, and vacuum functions in a compact component, ensuring safe pressure equalization—without any active control.
Technical data
Connection: 2-inch BSP or R2-inch fine thread
Trigger pressure Overpressure: 0.28 bar above stainless steel spring
Trigger pressure vacuum: almost 0 bar via diaphragm action
Valve function: Overpressure, underpressure, and vacuum compensation
Housing material: fiber-reinforced polypropylene PP
Spring: Stainless steel, Teflon-coated
Seals and diaphragm: made of Santoprene
Temperature range: minus 10 to plus 60 degrees Celsius
Compatibility: for IBC containers, plastic drums, metal drums with 2-inch threaded connection
How to use
The valve is mounted on containers with a 2-inch fine thread and automatically ensures pressure equalization when filling or removing liquids. When the pressure rises, the stainless steel spring opens at 0.28 bar. When negative pressure occurs, ventilation takes place almost pressurelessly via a Santoprene membrane. The valve thus protects containers, taps, dosing systems, and the operating environment.
Advantages at a glance
3-in-1 function: Overpressure, vacuum, and negative pressure valve in one component
Suitable for all barrels and IBCs with 2-inch BSP or R2-inch fine thread
Made of fiber-reinforced PP with Teflon-coated stainless steel spring
Elastic, media-resistant seals and diaphragms made of Santoprene
Maintenance-free and durable
Ideal for industrial storage, transport, and filling processes