BOA-RVK

Design 
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. 
Application 
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.

 

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Overview of technical data
Maximum temperature 250 002
DN max. 200
Body/bonnet seal element None ( single-piece body)
Minimum temperature 30- 002
DN min. 15
Valve disc/plug material Soft and metal- to-metal seat
eClass assignment 37010801
Body material (EN standard) EN GJL- 250;JL 1040
Threaded-end design Wafer- type design
Body design Straight pattern body
Body material Cast iron; Bronze;Brass
PN max. 16
Dimension standard EN 558- 1/49
Main applications Industry and process engineering; Building services