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Related Manuals for Spirax Sarco DCV4
Summary of Contents for Spirax Sarco DCV4
- Page 1 1348050/10 IM-P134-08 CMGT Issue 10 DCV4 Disc Check Valve Installation and Maintenance Instructions 1. Safety information 2. General product information 3. Installation 4. Commissioning 5. Operation 6. Maintenance 7. Spare parts © Copyright 2018 IM-P134-08 CMGT Issue 10 Printed in GB...
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Page 2: Safety Information
Determine the correct installation situation and direction of fluid flow. iv) Spirax Sarco products are not intended to withstand external stresses that may be induced by any system to which they are fitted. It is the responsibility of the installer to consider these stresses and take adequate precautions to minimise them. -
Page 3: Protective Clothing
1.9 Tools and consumables Before starting work ensure that you have suitable tools and/or consumables available. Use only genuine Spirax Sarco replacement parts. 1.10 Protective clothing Consider whether you and/or others in the vicinity require any protective clothing to protect against the hazards of, for example, chemicals, high/low temperature, radiation, noise, falling objects, and dangers to eyes and face. -
Page 4: Residual Hazards
Customers and stockists are reminded that under EC Health, Safety and Environment Law, when returning products to Spirax Sarco they must provide information on any hazards and the precautions to be taken due to contamination residues or mechanical damage which may present a health, safety or environmental risk. -
Page 5: General Product Information
2.1 General description The DCV4 stainless steel disc check valve is of the wafer pattern designed to be sandwiched between ASME flanges. It is suitable for use on a wide range of fluids for applications in process lines, hot water systems, steam and condensate systems etc. -
Page 6: Seating Options
2.4 Materials Part Material Body Austenitic stainless steel Disc Austenitic stainless steel Spring retainer Austenitic stainless steel Standard spring Austenitic stainless steel High temperature spring Nickel alloy 2.5 Seating options The valves are stamped to identify the internals fitted: High temperature spring Metal disc seat Without spring Metal disc seat... -
Page 7: Pressure/Temperature Limits
400 °C @ 29 bar g (752 °F @ 420 psi g) Minimum operating temperature -29 °C (-20.2 °F) Note: For lower operating temperatures consult Spirax Sarco Viton seat -25 °C to +205 °C (-13 °F to +401 °F) Temperature limits EPDM seat -40 °C to +120 °C... - Page 8 2.7 Body marking information DN15 A351 ASME 300 Fig. 2 DCV4 CF3M Rolled body markings and description DN15 A351 Made in ASME 300 BS 7438 DCV4 CF3M France Material Flow Design standard Country of Standard Melt Identity of DCV4 direction...
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Page 9: Installation
The DCV4 can be fitted betwen ASME 150 or 300 flanges. They can be installed in any plane with the exception of DCV's supplied without an internal spring. These must be fitted in a vertical flow line with the flow from bottom-to-top i.e. -
Page 10: Operation
4. Commissioning After installation or maintenance ensure that the system is fully functional. Carry out tests on any alarms or protective devices. 5. 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. -
Page 11: Maintenance
7. Spare parts There are no spare parts available for this product. How to order a new product Example: 1 off Spirax Sarco DN25, DCV4 stainless steel disc check valve for fitting between ASME 150 flanges. IM-P134-08 CMGT Issue 10... - Page 12 IM-P134-08 CMGT Issue 10...
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