SKU RSV-RK71 Category

Check valve RK71

Compact brass check valve for water and neutral media.

Data sheet

Product information

The check valve RK71 from GESTRA is a high-grade wafer valve for water, steam and neutral media. With its robust brass construction, spring-loaded function and compact design 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 pressed brass CW617N
  • Spring-loaded for reliable backflow prevention
  • Temperature range: -60°C to +250°C
  • Pressure rating: PN16
  • Sitzdichtung: Metallisch
  • Any installation position (horizontal or vertical)

Advantages

  • Wafer valve between flanges – no face-to-face length of its own
  • The closing spring permits any installation position
  • Body in pressed brass CW617N, internals in 1.4571
  • Short face-to-face length to EN 558-1 basic series 49

Versions

  • Sizes: DN15-DN100
  • Materials:
    Body: CW617N (brass)
    Ventilteller and Feder: Edelstahl 1.4571
  • Special versions:
    Without spring for the lowest opening pressures
    Sonderfedern (20–1000 mbar)

Areas of application

  • Pump discharge lines in heating and cooling circuits up to DN 100
  • Lines in any installation position thanks to the closing spring
  • Low-temperature applications down to -60 °C
  • Installation points with a short face-to-face length to basic series 49

Selection and installation

The closing spring is the reason why the RK71 works in any installation position. Without a spring only vertical installation with upward flow is permitted – this must be defined with the order.

CharacteristicValue
Nominal pressurePN 16
Nominal sizeDN 15 –
DN 100
Temperature range-60°C to +250°C
BodyBrass CW617N /
Stainless steel internal parts
GasketMetallic
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 RK71 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, without spring for vertical lines.

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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