Spirax Sarco DCV4 Installation And Maintenance Instructions Manual Download | Manualshive

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IM-P134-08

CMGT Issue 10

1

1. Safety information

2. General product information

3. Installation

4. Commissioning

5. Operation

6. Maintenance

7. Spare parts

© Copyright 2018

Printed in GB

1348050/10

DCV4

Disc Check Valve

Installation and Maintenance Instructions

IM-P134-08

CMGT Issue 10

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2
3
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Summary of Contents for DCV4

Page 1: ...ormation 2 General product information 3 Installation 4 Commissioning 5 Operation 6 Maintenance 7 Spare parts Copyright 2018 Printed in GB 1348050 10 DCV4 Disc Check Valve Installation and Maintenance...

Page 2: ...re and their maximum and minimum values If the maximum operating limits of the product are lower than those of the system in which it is being fitted or if malfunction of the product could result in a...

Page 3: ...kin contact and inhalation of any fumes as the acid will cause deep skin burns and damage the respiratory system 1 9 Tools and consumables Before starting work ensure that you have suitable tools and...

Page 4: ...ng due care is taken However if the valve is fitted with a Viton or PTFE seat special care must be taken to avoid potential health hazards associated with decomposition burning of these seats Viton Ca...

Page 5: ...Pressure Equipment Directive PED Standard shut off Standard valves conform to EN 12266 1 rate E Valves conforming to EN 12266 1 rate D are available on request Soft seated versions meet EN 12266 1 rat...

Page 6: ...erature spring Nickel alloy 2 5 Seating options The valves are stamped to identify the internals fitted N High temperature spring Metal disc seat W Without spring Metal disc seat V Standard spring Vit...

Page 7: ...g Minimum allowable temperature 29 C 20 F PMO Maximum operating pressure for saturated steam service 49 bar g 37 C 710 psi g 98 F TMO Maximum operating temperature Standard spring 300 C 31 5 bar g 57...

Page 8: ...n Fig 2 Rolled body markings and description DN15 DCV4 ASME 300 A351 CF3M Made in France BS 7438 A B C D E F G H I DNX DCV4 Flow direction Design pressure Material standard Grade Country of manufactur...

Page 9: ...flanges are used Other flange types may restrict operation 3 5 Disc check valves simply fit between two pipe flanges see Figure 3 Standard gaskets are used either side of the valve together with long...

Page 10: ...oning 5 Operation Kv values DN 15 20 25 40 50 80 100 Kv 4 4 7 5 12 26 39 84 150 For conversion Cv UK Kv x 0 963 Cv US Kv x 1 156 Opening pressures in mbar Differential pressures with zero flow for sta...

Page 11: ...check valve for fitting between ASME 150 flanges Note Before actioning any maintenance programme observe the Safety information in Section 1 This product is non maintainable Note Great care must be t...

Page 12: ...IM P134 08 CMGT Issue 10 12...

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