SKU RSV-RK41 Category

Check valve RK41

Versatile check valve for water, steam and neutral media.

Data sheet

Product information

The check valve RK41 from GESTRA is a universal solution for water, steam and gas lines. With its robust design, spring-loaded function and compact wafer version it offers maximum operational reliability and a long service life – ideal for industrial applications.

Special features

  • Wafer design to EN 1092, PN6/10/16
  • Body in brass (DN15-100) or grey cast iron (DN125-200)
  • Spring-loaded for reliable backflow prevention
  • Temperature range: -10°C to +300°C (metal-seated)
  • Pressure rating: PN16
  • Seat seal: metal (optionally EPDM or FPM)
  • Any installation position (horizontal or vertical)

Advantages

  • Special springs from 20 mbar to 1,000 mbar
  • Seat seal EPDM or FPM, metal as standard
  • Wafer valve without a face-to-face length of its own
  • Silicone-free version

Versions

  • Sizes: DN15-DN200
  • Dichtungen:
    Metallisch (Standard)
    EPDM for water/condensate
    FPM for gases and air
  • Special versions:
    Without spring for the lowest opening pressures
    Sonderfedern (20–1000 mbar)

Areas of application

  • Pumpendruckleitungen in Heiz- and Prozesskreisen
  • Applications with a defined opening pressure via special springs
  • Installation between flanges PN 6 to PN 16
  • Plants that require silicone-free components

Selection and installation

The spring determines the opening pressure; without a spring only vertical installation with upward flow is permitted. The permissible operating pressure falls with the temperature – at 150 °C, 13.5 bar of the 16 bar remains.

CharacteristicValue
Nominal pressurePN 16
Nominal sizeDN 15 –
DN 200
Temperature range-10°C to +300°C
BodyBrass (DN15-100) / cast iron (DN125-200)
GasketMetallic / EPDM / FPM
Installation positionAny

Check valves for SKID systems and pipe assemblies

Our check valves offer a compact solution for standard installations and can be seamlessly integrated into piping systems – ideal for SKID systems, modular assemblies and complex process lines.

Your advantages:

  • Ready-to-install SKID solutions: We supply complete pipe assemblies with integrated check valves.
  • Standard-compliant design: Adaptations in accordance with EN 1092-1, ASME B16.5 and Pressure Equipment Directive 2014/68/EU.
  • Individual configuration: For water, steam, gas and aggressive media – including automation and documentation.

Whether pump station, valve stand or pipe production – our engineering teams ensure precise design and ready-to-install delivery. This saves you time, reduces interfaces and increases operational reliability.

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FAQs

Which applications is the check valve RK41 suitable for?

Water, steam and neutral liquids.

Yes, horizontal and vertical installation position possible.

EN 1092, EN 12266, Pressure Equipment Directive 2014/68/EU.

Yes, EPDM and FPM are available.

Yes, the construction is maintenance-free.

Insulation – In combination with valves and containers

Our insulations are more than just accessories – they perfectly complement valves and systems and increase efficiency, safety and adaptability.
Order and configure now.

We offer:

  • Custom-made insulating pads to fit your valves
  • Heating jacket integration – reliable even under extreme conditions
  • Insulation jackets and pipe insulation for SKID assemblies – ideal for modular systems and complex systems
  • Special solutions for high temperatures – for power plants, the chemical and process industries
Armaturenfabrik Valve insulation High-temperature pipe insulation with IFS-Plast25 insulation pads and IFS-MW20 mineral wool for SKID systems, process plants

Make a request directly

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Benefit from our expert knowledge in process monitoring. Our experienced team will provide you with sound advice on selecting the optimum products for your specific requirements. Arrange your personal consultation now!
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