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WITT safety valves reliably protect pipework, pressure vessels and systems against dangerous overpressure. The TÜV-certified valves safely vent vapours and gases such as acetylene, argon, CO₂, helium, hydrogen, methane, propane, oxygen or compressed air, ensuring the highest level of process safety. With individually adjustable opening pressures ranging from 5 mbar to 45 bar, optional stainless steel or brass versions, and 100% functional testing, every valve meets the highest quality standards.

The ULTRAVENT series from WITT represents a new generation of mechanical millibar valves for gases. Designed for precise pressure control in the range from 5 to 500 mbar, these compact valves offer maximum process reliability and versatility – both for end users in industry and for OEMs looking to integrate reliable components into their machinery and plant.

Whether for safety functions, pressure relief or controlled venting: ULTRAVENT is the ideal valve for a wide range of applications in gas technology. With unique opening and closing characteristics in accordance with DIN EN ISO 4126-1 and TÜV component testing in the range of 100–500 mbar, ULTRAVENT meets the highest safety requirements.

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Picture of millibar safety relief valve ULTRAVENT 15 brass with outlet stainer

Control-/ pressure holding valve 1/2" NPT ULTRAVENT 15

Material: Brass Thread: 1/2" NPT Valve disc: PEEK (max. 100°C) Seal: CR/NBR Inlet filter: yes Outlet strainer: yes

Unique, precise, and certified valve with numerous applications for millibar pressure gases. All safety valves are 100% tested. Success factors / Unique selling points: Precisely regulates pressure in the millibar range in any direction Ideal as back pressure regulator, pressure regulator, safety valve, vacuum breaker Exceptionally precise opening and closing behavior TÜV type-tested according to DIN EN ISO 4126-1 The pressure setting you choose is TÜV-tested and certified Proven reliability over > 100,000 cycles Very low leakage rates Special versions are not available in the shop, but can be requested: Operating temperatures up to 270°C FDA-approved materials, suitable for medical applications PEEK housing and much more... If you have special requirements or requests, contact us – we are happy to help!

Variants from €187.31
€593.33
Details
Picture of millibar valve ULTRAVENT 15 brass 5-500 mbar

Control-/ pressure holding valve 1/2" NPT ULTRAVENT 15

Material: Brass Thread: 1/2" NPT Valve disc: PEEK (max. 100°C) Seal: CR/NBR Inlet filter: yes Outlet strainer: no

Unique, precise, and certified valve with numerous applications for millibar pressure gases. All safety valves are 100% tested. Success factors / Unique selling points: Precisely regulates pressure in the millibar range in any direction Ideal as back pressure regulator, pressure regulator, safety valve, vacuum breaker Exceptionally precise opening and closing behavior TÜV type-tested according to DIN EN ISO 4126-1 The pressure setting you choose is TÜV-tested and certified Proven reliability over > 100,000 cycles Very low leakage rates Special versions are not available in the shop, but can be requested: Operating temperatures up to 270°C FDA-approved materials, suitable for medical applications PEEK housing and much more... If you have special requirements or requests, contact us – we are happy to help!

Variants from €187.31
€439.35
Details
Picture of millibar safety relief valve ULTRAVENT 15 brass with outlet stainer

Control-/ pressure holding valve 1/2" NPT ULTRAVENT 15

Material: Brass Thread: 1/2" NPT Valve disc: PEEK (max. 100°C) Seal: EPDM Inlet filter: yes Outlet strainer: yes

Unique, precise, and certified valve with numerous applications for millibar pressure gases. All safety valves are 100% tested. Success factors / Unique selling points: Precisely regulates pressure in the millibar range in any direction Ideal as back pressure regulator, pressure regulator, safety valve, vacuum breaker Exceptionally precise opening and closing behavior TÜV type-tested according to DIN EN ISO 4126-1 The pressure setting you choose is TÜV-tested and certified Proven reliability over > 100,000 cycles Very low leakage rates Special versions are not available in the shop, but can be requested: Operating temperatures up to 270°C FDA-approved materials, suitable for medical applications PEEK housing and much more... If you have special requirements or requests, contact us – we are happy to help!

Variants from €187.31
€593.33
Details
Picture of millibar valve ULTRAVENT 15 brass 5-500 mbar

Control-/ pressure holding valve 1/2" NPT ULTRAVENT 15

Material: Brass Thread: 1/2" NPT Valve disc: PEEK (max. 100°C) Seal: EPDM Inlet filter: yes Outlet strainer: no

Unique, precise, and certified valve with numerous applications for millibar pressure gases. All safety valves are 100% tested. Success factors / Unique selling points: Precisely regulates pressure in the millibar range in any direction Ideal as back pressure regulator, pressure regulator, safety valve, vacuum breaker Exceptionally precise opening and closing behavior TÜV type-tested according to DIN EN ISO 4126-1 The pressure setting you choose is TÜV-tested and certified Proven reliability over > 100,000 cycles Very low leakage rates Special versions are not available in the shop, but can be requested: Operating temperatures up to 270°C FDA-approved materials, suitable for medical applications PEEK housing and much more... If you have special requirements or requests, contact us – we are happy to help!

Variants from €187.31
€439.35
Details
Picture of millibar safety relief valve ULTRAVENT 15 brass with outlet stainer

Control-/ pressure holding valve 1/2" NPT ULTRAVENT 15

Material: Brass Thread: 1/2" NPT Valve disc: PEEK (max. 100°C) Seal: FKM Inlet filter: yes Outlet strainer: yes

Unique, precise, and certified valve with numerous applications for millibar pressure gases. All safety valves are 100% tested. Success factors / Unique selling points: Precisely regulates pressure in the millibar range in any direction Ideal as back pressure regulator, pressure regulator, safety valve, vacuum breaker Exceptionally precise opening and closing behavior TÜV type-tested according to DIN EN ISO 4126-1 The pressure setting you choose is TÜV-tested and certified Proven reliability over > 100,000 cycles Very low leakage rates Special versions are not available in the shop, but can be requested: Operating temperatures up to 270°C FDA-approved materials, suitable for medical applications PEEK housing and much more... If you have special requirements or requests, contact us – we are happy to help!

Variants from €187.31
€593.33
Details
Picture of millibar valve ULTRAVENT 15 brass 5-500 mbar

Control-/ pressure holding valve 1/2" NPT ULTRAVENT 15

Material: Brass Thread: 1/2" NPT Valve disc: PEEK (max. 100°C) Seal: FKM Inlet filter: yes Outlet strainer: no

Unique, precise, and certified valve with numerous applications for millibar pressure gases. All safety valves are 100% tested. Success factors / Unique selling points: Precisely regulates pressure in the millibar range in any direction Ideal as back pressure regulator, pressure regulator, safety valve, vacuum breaker Exceptionally precise opening and closing behavior TÜV type-tested according to DIN EN ISO 4126-1 The pressure setting you choose is TÜV-tested and certified Proven reliability over > 100,000 cycles Very low leakage rates Special versions are not available in the shop, but can be requested: Operating temperatures up to 270°C FDA-approved materials, suitable for medical applications PEEK housing and much more... If you have special requirements or requests, contact us – we are happy to help!

Variants from €187.31
€439.35
Details
Picture of millibar valve ULTRAVENT 15 stainless steel with outlet stainer

Control-/ pressure holding valve 1/2" NPT ULTRAVENT 15 ES

Material: Stainless steel Thread: 1/2" NPT Valve disc: PEEK (max. 100°C) Seal: CR/NBR Inlet filter: yes Outlet strainer: yes

Unique, precise, and certified valve with numerous applications for millibar pressure gases. All safety valves are 100% tested. Success factors / Unique selling points: Precisely regulates pressure in the millibar range in any direction Ideal as back pressure regulator, pressure regulator, safety valve, vacuum breaker Exceptionally precise opening and closing behavior TÜV type-tested according to DIN EN ISO 4126-1 The pressure setting you choose is TÜV-tested and certified Proven reliability over > 100,000 cycles Very low leakage rates Special versions are not available in the shop, but can be requested: Operating temperatures up to 270°C FDA-approved materials, suitable for medical applications PEEK housing and much more... If you have special requirements or requests, contact us – we are happy to help!

Variants from €187.31
€822.53
Details
Picture of millibar safety relief valve ULTRAVENT 15 stainless steel 5-500 mbar

Control-/ pressure holding valve 1/2" NPT ULTRAVENT 15 ES

Material: Stainless steel Thread: 1/2" NPT Valve disc: PEEK (max. 100°C) Seal: CR/NBR Inlet filter: yes Outlet strainer: no

Unique, precise, and certified valve with numerous applications for millibar pressure gases. All safety valves are 100% tested. Success factors / Unique selling points: Precisely regulates pressure in the millibar range in any direction Ideal as back pressure regulator, pressure regulator, safety valve, vacuum breaker Exceptionally precise opening and closing behavior TÜV type-tested according to DIN EN ISO 4126-1 The pressure setting you choose is TÜV-tested and certified Proven reliability over > 100,000 cycles Very low leakage rates Special versions are not available in the shop, but can be requested: Operating temperatures up to 270°C FDA-approved materials, suitable for medical applications PEEK housing and much more... If you have special requirements or requests, contact us – we are happy to help!

Variants from €187.31
€636.53
Details
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