Electric steam generators

The Doorkeeper

The non-return valve shuts off a pipeline or a network in a safety-oriented manner via a valve assembly if the differential pressure falls below a minimum value. It consists of a combination of SAMSON Group valves, a differential pressure transducer and a safety control unit.

Features at a glance

Hydrogen approved

1. Applicable for hydrogen > 550bar
2. SAMSON Hydrogen Valve Know How

Chemical and pharmaceutical industry approved

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Ready-to-use units

Creation of a SIL circuit calculation and documentation of the SIL characteristic values of the combination (skid) in a SAMSON manufacturer's declaration< br/> Valves, safety control circuit and instrumentation from a single source

Innovation in action

Here's a deep dive

The design is based on the 1oo2 principle. The SIL circuit calculation and documentation of the SIL characteristic values of the combination (skid) is created in a SAMSON manufacturer's declaration. The non-return valve achieves a safety level of SIL2 or SIL3 and is available as standard up to a diameter of DN200 PN63. The pressure loss is low and amounts to a maximum of 0.2 bar. To prevent backflow, the non-return valve can optionally be equipped with a bleed function. It is supplied as a fully assembled module and is also available in an Ex version, whereby the control unit type 7402 is used in non-Ex areas.

Trade fair impressions

ACHEMA 2022

Turnkey solutions for the process industry

Modular systems

Product range

We develop and manufacture smart system solutions using components made by SAMSON for a wide variety of applications in steam and condensate systems, media conditioning and production engineering.
Consulting

We support you in defining and implementing the safety requirements for your application. Our consulting services also include an extensive safety analysis to determine the function and suitable components to be used.
Planning and project management

We help you plan and manage your project. Take advantage of our engineers' know-how right from the start for selecting sensors, control valves and PCs, sizing pipelines, planning the control operations, calculating the SIL loop and drafting the documentation for your application.
Installation and start-up

For optimal operation, it is important that all components within a modular system are configured, wired and mounted correctly. We provide checklists to support you during installation and start-up. Alternatively, you can entrust us with all the start-up activities, including function testing of the entire system.
Maintenance and servicing

SAMSON provides you with extensive documentation for maintenance, troubleshooting and proof testing. Our global network of over 200 representatives provides hands-on assistance on site. No matter where you are located, you can rely on our experts to support you during maintenance and service work. They are also at hand to help you modify or upgrade your plant.