A vent valve protects containers, pipeline systems or tanks from underpressure via targeted airing and therefore prevents damage such as deformation and contraction. The vent valve constantly synchronises the previously defined differential value between atmospheric pressure and internal pressure within the container with the current differential pressure. Should it fall below the set value, the vent opens and draws air into the tank, container or pipeline until the pressure fulfils the desired differential value. In order for your vent valves to function reliably, you must maintain them regularly and keep their vent openings free of dust and dirt at all times. Only then are they perfectly protected against underpressure damages.
VB03000003
vent-valve 1/2" inch male screw threaded BSP-P for neutral gaseous media, steam set pressure -6 mbar made of brass CW617N
VB01000005
vent-valve 1" inch male screw threaded BSP-P for neutral gaseous media, steam set pressure -6 mbar made of stainless steel 1.4404
VB03000005
vent-valve 1" inch male screw threaded BSP-P for neutral gaseous media, steam set pressure -6 mbar made of brass CW617N
VB01000004
vent-valve 3/4" inch male screw threaded BSP-P for neutral gaseous media, steam set pressure -6 mbar made of stainless steel 1.4404
VB03000004
vent-valve 3/4" inch male screw threaded BSP-P for neutral gaseous media, steam set pressure -6 mbar made of brass CW617N
VB02000004
vent-valve 3/4" inch male screw threaded BSP-P for neutral gaseous media, steam set pressure -100 to -800 mbar, adjustable made of stainless steel 1.4404
VB02000003
vent-valve 1/2" inch male screw threaded BSP-P for neutral gaseous media, steam set pressure -100 to -800 mbar, adjustable made of stainless steel 1.4404
VB01000003
vent-valve 1/2" inch male screw threaded BSP-P for neutral gaseous media, steam set pressure -6 mbar made of stainless steel 1.4404
A vent valve only reacts to underpressure. In order to protect your pipelines, tanks and other containers against vacuum, we recommend the installation of a safety valve. When pressure gets too high, this gently discharges the excess and therefore prevents your pipelines, containers, silos, etc. from bursting.
Our product range includes four different vent valves: Type VB01 and Type VB02 are optimised for utilisation with neutral, gaseous media such as air, gases and technical vapours and are made from high-quality, non-corrosive stainless steel 1.4404. It is sealed with a PTFE carbon seal. Concerning the male thread, the vents have the three nominal sizes ½", ¾" and 1". They are suitable for temperatures from a maximum low of -60°C to a maximum high of +225°C. Vent type VB01 is set at an opening pressure of -6mbar pressure difference. Type VB02, however, covers differential values between -100mbar and -800mbar. Types VB03 and VB04, on the other hand, are made from brass.
We are happy to support you with our expertise and experience in selecting the right vent valve for your pipeline system, tank or container. Just give us a ring or send an e-mail.
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You can reach us from Monday to Friday at +497143 9666900 and any time at sales@nieruf.com
Our certified quality management according to DIN EN ISO 9001: 2015 is part of our DNA. With our test stands we can carry out pressure tests with up to 350 bar with air and water as well as leak tests according to DIN EN 122661.
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