SKU RSV-RK41 Category

Check valve RK41

Versatile check valve for water, steam and neutral media.

Data sheet

Product information

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

Special features

  • Intermediate flange version to EN 1092, PN6/10/16
  • Body made of brass (DN15-100) or cast iron (DN125-200)
  • Spring-loaded for reliable backflow prevention
  • Temperature range: -10°C to +300°C (metallic sealing)
  • Nominal pressure: PN16
  • Seat seal: Metallic (optional EPDM or FPM)
  • Any installation position (horizontal or vertical)

Advantages

  • Versatile use for liquids, gases and steam
  • Maintenance-free construction
  • Compact short length according to EN 558-1, series 49
  • Optionally soft-sealing for special applications
  • Special springs available for defined opening pressures

Variants

  • Sizes: DN15-DN200
  • Gaskets:
    Metallic (standard)
    EPDM for water/condensate
    FPM for gases and air
  • Special versions:
    Without spring for very low opening pressures
    Special springs (20-1000 mbar)

Areas of application

  • Heating and steam systems
  • Water and process lines
  • SKID systems and pipe assemblies
  • Chemical and petrochemical industry
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 media are suitable?

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 fittings and containers

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

We offer:

  • Custom-made insulating pads to fit your fitting
  • 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

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