Description
The WAFER swing or tilting disc check valve of the R series can be manufactured with flanges on request.
The WAFER swing or tilting disc check valve of the R series has a one‐piece cast body which provides easy evacuation of solid particles contained in the fluid.
The WAFER swing or tilting disc check valve of the R series has an arrow on the body indicating the flow direction. It can be supplied with auxiliary spring to obtain faster sealing. For high water loads or large valve diameters hydraulic damping systems can be incorporated which reduce the valve’s impact in the sealing.
The WAFER swing or tilting disc check valve of the R series allows the fluid to flow through in one direction, it is opened by the fluid passing through and it closes due to the weight of the disc and the return of the fluid.
General Applications
This valve is suitable for liquids that contain a maximum of 5% suspended solids. It is designed for a wide range of applications such as:
- Paper Industry
- Chemical plants
- Sewage treatment
- Pumping
Sizes
- From ND50 to ND1.200
- Larger sizes on request
Working Pressure
- From ND50 to ND600: Maximum PN 64
- From ND700 to ND1.200: Maximum PN 25
Flange connection
The standard flange connection is according to DIN PN10. Other flange connections are available on request, such as:
‐ ANSI 150
‐ Australian Standard
‐ DIN PN6
‐DIN PN16
‐DIN PN25
‐ British Standard
‐ JIS Standard
Directives
- Machinery Directive: DIR 2006/42/EC (MACHINERY)
- Pressure Equipment Directive: DIR 97/23/EC (PED) ART.3, P.3
- Potential Explosive Atmospheres Directive: DIR 94/9/CE (ATEX) CAT.3 ZONE 2 and 22 GD
