SKU RSV-BOACHEM-RXA Category

Check valve BOACHEM-RXA

Stainless steel check valve for aggressive media and high temperatures.

Data sheet

Product information

The BOACHEM-RXA check valve from KSB is the ideal solution for demanding applications with aggressive, corrosive or explosive media. With its robust stainless steel construction, spring-loaded function and flanged connection, it offers maximum safety and reliability in the chemical industry, process engineering and food production.

Special features

  • Flange version according to DIN EN 1092-1, form B1
  • Type: Straight-through design with straight upper part
  • Spring-loaded non-return cone
  • Temperature range: -10°C to +400°C
  • Nominal pressure: PN10-PN40
  • Seat seal: Metallic (optional PTFE, EPDM, FPM)
  • Installation position: Horizontal or vertical
  • High surface quality due to lapped sealing surfaces
  • Standard closing spring

Advantages

  • Suitable for aggressive, explosive and corrosive media
  • High functional reliability and low leakage due to chambered
  • Cover seal
  • Maintenance-free construction
  • Compact design according to EN 558-1
  • Complies with ATEX and Pressure Equipment Directive 2014/68/EU

Variants

  • Sizes: DN15-DN400
  • Materials:
    Body: Stainless steel GX5CrNiMo19-11-2 (1.4408)
    Non-return cone: ASTM A182 F316
    Spring: Stainless steel 316
  • Special versions:
    PTFE gasket for aggressive media (up to 200°C)
    Stellited sealing surfaces
    Use down to -60°C
    Oil-free and grease-free for sensitive applications

Areas of application

  • Chemical and petrochemical industry
  • Food and beverage industry
  • Process engineering
  • Heat transfer oil and hot water systems
  • SKID systems and pipe assemblies
CharacteristicValue
Nominal pressurePN 10 – PN 40
Nominal sizeDN 15 –
DN 400
Temperature range-10°C to +400°C
BodyStainless steel GX5CrNiMo19-11-2 (1.4408)
GasketMetallic / PTFE / EPDM / FPM
Installation positionHorizontal or vertical
Valve factory Heatable valve Heating jacket Check valve Flange Modification Leakage jacket Performance

Optional equipment for BOACHEM-RXA – heating jacket and leakage jacket

For the BOACHEM-RXA check valve, we also offer the option of designing the valve with a heating jacket or leakage jacket. This solution is ideal for applications where the medium must be kept at temperature or additional safety against leaks is required.
Details of the design:

Heating jacket material: Stainless steel 1.4541 / 1.4301 or 1.4571 / 1.4404
Heatable fitting: For steam, oil and process applications where temperature stability is crucial
Leakage jacket: Additional safety for critical media and aggressive liquids
Customization: Manufactured to customer specifications, including connections for heating media (steam, thermal oil)

Further options:

Other flange processing possible: e.g. tongue and groove design, projection or recess in accordance with EN 1092-1

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?

Aggressive liquids, steam, hot water, heat transfer oil, explosive and corrosive media.

Yes, horizontally or vertically.

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

Yes, PTFE gasket and stelliting 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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