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ULTRAVENT – low pressure valves for gases: precise pressure control from 0.07 to 7.25 psig (5 to 500 mbar)
With ULTRAVENT, WITT offers a groundbreaking series of mechanical low pressure valves for gases. Designed for pressure ranges from 0.07 to 7.25 psig / 5 to 500 mbar, these precision-engineered devices deliver maximum control and reliability – whether for protecting systems, ensuring stable processes, or integrating into OEM equipment.
ULTRAVENT valves stand out through their unique versatility: They can function as safety valves, pressure control valves, back pressure regulators, vacuum breakers, pressure relief valves, breather valves, blow-off valves – and even as a reusable alternative to burst discs. Unique opening and closing behavior in accordance with DIN EN ISO 4126-1 and TÜV-certified for safety and performance, these compact low pressure valves are ideal for demanding gas applications across many industries.
ULTRAVENT low pressure millibar valves: safety valves, pressure control valves, vacuum breakers, back pressure regulators, blow-off valves, pressure relief valves, breather valves, alternative to burst disks
Key advantages of ULTRAVENT low pressure gas valves at a glance:
- Precise low pressure control from 0.07 to 7.25 psig (5 to 500 mbar)
- Purely mechanical and maintenance-friendly design
- High flow capacity due to optimized internal geometry
- Low leakage rates with high-quality elastomer seals
- Unique: TÜV type approval for safety valves (100–500 mbar) according to EN ISO 4126-1
- ULTRA accurate and reliable: Tested and proven over 100 000 cycles
- Custom configurations available for OEM applications
- Available in brass or stainless steel, with various seal materials (including FDA-approved versions)
Safety Valves: Reliable Protection Against Overpressure
In critical gas systems, exceeding a defined pressure can pose serious safety risks. ULTRAVENT low pressure valves serve as dependable safety devices: They open immediately when the set pressure is exceeded and reseal tightly once the pressure normalizes. With over 100,000 test cycles, these spring-loaded valves deliver long-term performance and peace of mind – backed by individual TÜV certification.
Pressure Relief Valves: Controlled Pressure Venting
Whether in storage tanks, pipelines, or process vessels – ULTRAVENT valves provide targeted venting to protect against unintended overpressure. Their compact size and high flow capacity make them ideal for decentralized protection points in complex systems.
Pressure Control Valves: Consistent Process Conditions
For processes sensitive to pressure fluctuations, ULTRAVENT valves can act as regulating valves, keeping the pressure at a defined and stable level. As fully mechanical solutions, they offer high reliability without requiring external energy sources – a perfect fit for OEM integration.
Vacuum Breakers: Effective Protection from Undepressure
Negative pressure in tanks or piping can cause structural damage or process disturbances. ULTRAVENT vacuum breakers open at a precisely defined vacuum level, allowing ambient air or gas to enter and restore safe internal pressure.
Back Pressure Regulators: Maintaining Pressure Flow
In systems with pumps or compressors, ULTRAVENT valves can function as bypass or pressure-holding valves to protect against pressure surges or to maintain upstream pressure levels. Their fast response and adaptability ensure consistent flow behavior in dynamic processes.
Blow-off Valves: Targeted Component Protection
Sensitive instruments, measuring cells, or membranes can be damaged by even minor pressure spikes. ULTRAVENT valves safeguard these components by relieving pressure at just the right moment – with minimal leakage and precise resealing after each cycle.
Breather Valves: Inlet and Outlet Venting for System Stability
When containers or systems need to be safely vented or aerated, ULTRAVENT valves provide a reliable path for gas entry or release. Their compact form factor and range of seal options make them suitable for both inert and reactive gases.
Bursting Disc Alternative: Reusable and Accurate
Unlike bursting discs, which must be replaced after each operation, ULTRAVENT valves reset automatically after actuation. They offer a reusable, tamper-resistant, and certifiable alternative for overpressure protection – with the added benefit of much finer control over opening pressures.
One valve series - countless applications
The ULTRAVENT family is designed for a wide range of industrial low pressure gas applications. Whether in 3D metal printers, offshore wind turbines, bioreactors, gloveboxes, thermal processing systems, laser technology or ventilators and other medical technology applications - ULTRAVENT makes the smallest pressure ranges controllable and reliably protects sensitive processes and systems. The valves can even be used in high-temperature applications such as hydrogen electrolysers.
ULTRAVENT: The Ideal Solution for OEMs and Industrial Gas Systems
Whether you're an end-user seeking greater safety and control or an OEM looking to integrate advanced gas valve technology into your products – the ULTRAVENT series from WITT delivers performance, flexibility, and reliability. Available in various connection sizes, these valves represent a new benchmark for pressure management in the low pressure millibar range.
