Back pressure regulators UV 3.5 ATEX H2

Mankenberg GmbH

Back pressure regulators for ex atmospheres and small flow rates
Self-acting control valves with accurate pressure control
Easy installation and maintenance
Available with metallic or soft seals
Compliance with ATEX directive 2014/34/EU and DIN EN ISO 80079-36

The primary product is the Back pressure regulators UV 3.5 ATEX H2, a self-acting back pressure regulator designed for use in explosive atmospheres (ATEX) and for controlling small flow rates. It is a spring-loaded diaphragm-controlled proportional control valve that ensures accurate pressure control without requiring external pneumatic or electrical control elements. The valve is constructed from deep-drawn stainless steel, providing excellent corrosion resistance, and features a non-rising adjusting screw for easy adjustment. It is compliant with ATEX directive 2014/34/EU and DIN EN ISO 80079-36, ensuring safety in hazardous environments. The valve can be fitted with metallic or soft seals and is suitable for liquids and gases. It has a wide range of setting ranges (0.005 - 20 bar) and is available in various configurations, including the UV 3.5S and UV 3.5Z models, which require a pilot line for installation. The valve is designed for easy maintenance and adjustment, with the ability to change the diaphragm or spring assembly without special tools. It is suitable for a wide range of temperatures (-20°C to 130°C) and is available with various connection options, including G 1/2 and flanges. The product is marketed as a reliable and efficient solution for pressure control in hazardous environments, ensuring safety and precision.

Use Cases

Pressure control upstream of pipelines in hazardous (ATEX) areas.
Applications with small liquid or gas flow rates in ex environments.

Capabilities

Controls inlet (upstream) pressure between 0.005 and 20 bar, depending on spring range.
Operates self-acting, without external pneumatic or electrical energy.
Suitable for liquids and gases within the specified pressure and temperature limits.
Configurable via three seat sizes (Kvs 0.2–0.9 m³/h).
Allows easy maintenance and reconfiguration by changing diaphragm or spring assembly.
Certified for ATEX Zone 1/2 hazardous environments (Ex II 2G).

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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