Back pressure regulators UV 5.5 ATEX H2

Mankenberg GmbH

Self-acting back pressure regulator for accurate control without pneumatic or electrical elements
Made of stainless steel 316L for excellent corrosion resistance
Adjustable inlet pressure with a non-rising adjusting screw
Various seal materials suitable for different media
Options for special connections like Aseptic, ANSI, or JIS flanges

The UV 5.5 ATEX H2 back pressure regulator is a spring-loaded proportional control valve designed for universal application in small to medium flow rates. It is specifically engineered for use in explosive atmospheres (ATEX) and features a self-acting mechanism that controls pressure upstream of the valve without requiring external pneumatic or electrical control elements. The valve body and medium-wetted internal parts are made of stainless steel 316L, providing excellent corrosion resistance. The valve cone is fitted with a soft seal, and the inlet pressure is balanced across the valve seat by the force of the valve spring (set pressure). If the inlet pressure rises above the set pressure, the valve opens, and if it decreases, the valve closes. The valve is compliant with ATEX directive 2014/34/EU and DIN EN ISO 80079-36, and includes features such as an adjusting screw lock, grounding lug, and partial use of low-spark material. It is suitable for liquids, gases, and steam, with a temperature range of -40°C to 200°C and a maximum operating pressure of 20 bar at reference temperature. The valve is available in various configurations and materials, with options for different seal materials and special connections.

Use Cases

Pressure control upstream of pipelines in ATEX hazardous areas.
Liquid, gas, and steam systems requiring controlled relief at small to medium flow rates.

Capabilities

Controls upstream pressure in the range 0.5–20 bar, depending on spring setting.
Operates fully self-acting, without external pneumatic or electrical energy.
Handles liquids, gases, and steam within defined pressure and temperature limits.
Provides configurable flow capacity via Kvs values from 1.3 to 7.5 m³/h.
Supports multiple connection standards (threaded, DIN/ANSI flanged, special connections).

Mankenberg GmbH

Mankenberg GmbH is a German manufacturer specializing in high-quality industrial valves with a strong focus on pressure regulation, safety, and durability. With more than 140 years of engineering expertise, the company delivers robust stainless-steel valves designed for demanding and safety-critical applications. In the hydrogen economy, Mankenberg’s self-acting pressure regulators, back-pressure valves, and safety valves support safe and efficient handling of hydrogen across production, transport, storage, and fueling infrastructure. Their products emphasize reliability, leak-tightness, and compatibility with hydrogen’s unique properties, making Mankenberg a trusted partner for emerging H₂ technologies and sustainable energy systems.

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