Flowserve Nordstrom Dynamic Balance Plug Valve and Double DB Bedienungsanleitung PDF herunterladen (Seite 2)

Contents

1 Valve Selection 4

1.1 Introduction 4

1

.2 Pressure-Temperature Rating 4

1

.3 Bending Strength 4

1

.4 Fire Safety 4

1

.5 Pressure Surge 5

1

.6 Throttling Service 5

1

.7 Temperature Changes 5

1

.8 Other Pressurization 5

1

.9 Trapped Pressure 5

1

.10 Material Compatibility 5

1

.11 Operating Effort 6

2 S

hipping And Storage 6

2

.1 Introduction 6

2

.2 Handling 6

2

.3 Storage 6

3 I

nstallation 6

3

.1 Introduction 6

3

.2 Inspection 6

3

.3 Threaded Valve to Pipe Assembly 7

3

.4 Flanged Joint Assembly 7

3

.5 Weld Joint Assembly 8

3

.6 Proprietary End Connection Assembly 8

3

.7 Testing and Adjustment 9

4 O

peration And Maintenance 9

4

.1 Introduction 9

4

.2 Operation, Manual Valves 9

4

.3 Operation, Power-Actuated Valves 9

4

.4 Fluid Dynamics of Shutoff Valve Operation 10

4

.5 Noise 10

4

.6 Maintenance 11

5

Dynamic Balance Plug Valve Maintenance 11

5

.1 Notice 11

5

.2 Customer Service 11

5

.3 Field Service 11

5

.4 When You Call or Write Us 12

5

.5 Product Identiﬁcation 12

5

.6 Economics of Valve Repair 12

5

.7 Video Training 13

5

.8 Introduction 13

5

.9 Earlier Designs 13

5

.10 Basic Construction Principles 13

5

.11 Sealant System 14

5

.12 Design Features 14

5

.13 Valve Front Identiﬁcation 15

5

.14 Gearing 15

5

.15 Sealants 15

5

.16 VXX Valve Purge 15

5

.17 Sealant Injection Equipment 15

5

.18 Valve Maintenance 16

5

.19 Basic Sealant Injection 16

6

Valve Maintenance: Troubleshooting 17

1 2 3 4 5 6 7 ... 35 36

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