Pipeline ancillaries Disc, split disc and wafer check valves
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Local regulations may restrict the use of this product to below the conditions quoted. In the interests of development and improvement of the product, we reserve the right to change the specification without notice. © Copyright 2024
TI-P134-26 CMGT Issue 10
DCV6 Disc Check Valve
Description The DCV6 stainless steel disc check valve is of the wafer pattern designed to be sandwiched between flanges. It is suitable for use on a wide range of fluids for applications in process lines, hot water systems, steam and condensate lines etc. They have an increased gasket face area compared to the DCV3, with face-to- face dimensions conforming to EN 558 part 2, series 52.
As standard it will be supplied with a metal-to-metal seat for use on steam applications. Where it is being used on oil, air, gas and water applications, alternative seat material is available - see 'Optional extras'. Note: Wafer check valves are not suitable for use where heavily pulsating flow exists, such as close to a compressor. Optional extras Heavy duty springs (700 mbar opening pressure, up to DN65) for boiler feed applications. High temperature springs for temperatures up to 400 °C. Viton soft seats for oil, gas and air applications. EPDM soft seats for water applications. Standards This product fully complies with the requirements of the EU Pressure Equipment Directive/UK Pressure Equipment (Safety) Regulations. Standard shut-off Standard valves conform to EN 12266-1 rate D. Soft seated versions meet EN 12266-1 rate A, providing a differential pressure exists. Certification This product is available with certification to EN 10204 3.1. Note: All certification/inspection requirements must be stated at the time of order placement. Sizes and pipe connections DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80 and DN100 Suitable for installation between the following flanges: EN 1092 PN10, PN16, PN25 and PN40, JIS 10K, JIS 16K, JIS 20K, JIS 30K and JIS 40K, KS 10K, KS 16K, KS 20K, KS 30K and KS 40K, ASME B 16.5 Class 300 -will not fit between Class 150 Note : DN40 – DN50 – DN65 – DN80 and DN100- will not fit between JIS 10-16 -20K Flange face options: Flange faces may be machined to fit between flanges according to DIN 2512, 2513, 2514 and ASME 300 RJ.
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Operation Disc check valves are opened by the pressure of the fluid and closed by the spring as soon as the flow ceases and before the reverse flow occurs.
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TI-P134-26 CMGT Issue 10
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DCV6 Disc Check Valve
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