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Summary of Contents for Spirax Sarco DCV8
- Page 1 6010050/7 IM-P601-02 CMGT Issue 7 DCV8 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-P601-02 CMGT Issue 7 Printed in France...
- Page 2 IM-P601-02 CMGT Issue 7...
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Page 3: 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 4: 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 5: 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 6: General Product Information
DCV8 disc check valves are of a wafer pattern, designed to be sandwiched between DIN 2501 and EN 1092 flanges. Their function is to prevent reverse flow on a wide variety of fluids. The DCV8 is designed for use with agressive fluids, vapours, acids and alkalines at high pressures and temperatures. -
Page 7: Optional Extras
2.3 Optional extras Heavy duty springs (700 mbar opening pressure, up to DN65) for boiler feed applications High temperature springs Viton soft seats for oils and gas applications EPDM soft seats for water applications 2.4 Materials Part Material Body Austenitic stainless steel Disc Austenitic stainless steel Spring retainer... -
Page 8: Pressure/Temperature Limits
2.6 Pressure/temperature limits Note: Special testing to allow lower temperature operation can be provided at extra cost. Consult Spirax Sarco. Pressure psi g Steam saturation curve -196 -320 Pressure bar g The product must not be used in this region. -
Page 9: Installation
The DCV8 can be fitted between EN 1092/DIN 2501 PN10, PN16, PN25 and PN40 flanges. They can be installed in any plane with the exception of DCV's supplied without an internal spring. -
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, DCV8 disc check valve for fitting between DN25 PN40 flanges. IM-P601-02 CMGT Issue 7... - Page 12 IM-P601-02 CMGT Issue 7...
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