Main applications

  • Building services
  • HVAC
  • Heating / ventilation / air-condition
  • Industry engineering
  • Surface treatment

Technical data

T max 250 °C
DN max 200
PN max 16


Wafer-type non-return valve; centering aided by the body shape, shut-off by spring loaded check disc or plug guided by three stainless steel guiding pins. Low-noise variants with plastic check disc (DN 15-100) or plug with O-ring (DN 125-200), maintenance-free.


Industrial and heating systems. Non-hazardous liquids and gases as per Fluid Group 2 of Pressure Equipment Directive 97/23/EC. Hot water heating systems. High-temperature hot water heating systems. Heat transfer systems. Any limits given in the technical codes shall be complied with. Not suitable for fluids liable to attack the valve materials. Other fluids on request.

Further technical information about BOA-RVK

Overview of technical data

T -10 – 250 (°C)
DN 15 – 200
PN 16
Body design Straight pattern body
Dimension standard EN 558-1/49
Valve disc/plug material Soft and metal-to-metal seat
Threaded-end design Wafer-type design
Body material (EN standard) EN GJL-250, JL 1040
Main applications Industry and process engineering, Building services
Body material Cast iron, Bronze, Brass
PN min. 6
Body/bonnet seal element None (single-piece body)