SKU RSV-RK49 Category

Check valve RK49

Extremely robust high-pressure valve for steam and hot water up to 550°C.

Data sheet

Product information

The check valve RK49 from GESTRA is the ideal solution for high-pressure and high-temperature applications. With its robust construction in stainless steel and heat-resistant steel, spring-loaded function and compact design it offers maximum safety and reliability in power plant and process plants.

Special features

  • Wafer version to EN 1092, PN63/100/160
  • ASME Class 400/600/900 optional
  • Body in stainless steel (DN15-65) or heat-resistant steel (DN80-200)
  • Temperature range: -10°C to +550°C
  • Pressure rating: up to PN160
  • Sitzdichtung: Metallisch
  • Any installation position (horizontal or vertical)

Advantages

  • Pressure ratings PN 63, PN 100 and PN 160 in one design
  • Metal seat seal with leakage rate C to EN 12266-1
  • Werkstoffe 1.4581 and 1.7357 je Nennweitenbereich
  • Wafer valve without a face-to-face length of its own

Versions

  • Sizes: DN15-DN200
  • Materials:
    DN15-65: cast stainless steel 1.4581, valve disc in heat-resistant forged steel
    DN80-200: body in heat-resistant steel 1.7357, seat hard-faced
  • Closing spring: Nimonic 90 for high-temperature resistance

Areas of application

  • High-pressure lines up to PN 160
  • International projects with ASME Class 400 to Class 900
  • Steam, gas and liquid lines
  • Installation points with a short face-to-face length to basic series 52

Selection and installation

The material follows the nominal size: DN 15 to 65 in 1.4581, DN 80 to 200 in 1.7357. The permissible operating pressure falls as the temperature rises and must be taken from the pressure-temperature table.

CharacteristicValue
Nominal pressurePN 63 –
PN 160
Nominal sizeDN 15 –
DN 200
Temperature range-10°C to +550°C
BodyStainless steel / heat-resistant steel
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 RK49 suitable for?

Steam, hot water and aggressive media.

Yes, horizontal and vertical installation position possible.

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

Yes, special springs and ASME versions 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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