Pipeline ancillaries Disc, split disc and wafer check valves
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How to order Example: 1 off Spirax Sarco DN40, DCV4 stainless steel disc check valve for fitting between ASME 300 flanges.
Safety information, installation and maintenance For full details see the Installation and Maintenance Instructions supplied with the product.
DCV4 disc check valves must be fitted in accordance with the direction of flow arrow indicating correct fluid flow direction. When fitted with a spring they can be installed in any plane. When supplied without a spring they must be fitted in a vertical flow line with the flow from bottom-to-top. * Note: Flanges, bolts (or studs), nuts and joint gaskets are to be provided by the installer. Disc check valves are non-maintainable (no spares are available). Disc check valves are not suitable for use where heavily pulsating flow exists, such as close to a compressor. Various options are denoted by a marking on the valve body: 'N' - High temperature spring - Standard metal disc 'W' - Without spring - Standard metal disc 'V' - Standard spring - Viton soft faced disc 'E' - Standard spring - EPDM soft faced disc 'WV' - Without spring - Viton soft faced disc 'WE' - Without spring - EPDM soft faced disc 'T' - Valves tested to EN 12266-1 Rate D * *
No identification indicates a standard spring with a metal disc.
Disposal If a product which contains a Viton component has been subjected to a temperature approaching 315 °C (599 °F) or higher, then it may have decomposed and formed hydrofluoric acid. Avoid skin contact and inhalation of any fumes as the acid will cause deep skin burns and damage to the respiratory system. Viton must be disposed of in a recognised manner as stated in the Installation and Maintenance Instructions. No other ecological hazard is anticipated with the disposal of this product providing due care is taken.
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TI-P134-04 CMGT Issue 16
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DCV4 Disc Check Valve
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