Cameron WKM Manuale utente

TOV

Installation, Operation and Maintenance Manual 1 WKM-TOV-IOM

Installation, Operation and Maintenance Manual

3”-24” 150/300/600 CLASS

WKM® - TRIPLE OFFSET VALVE

WKM®

TOV

Installation, Operation and Maintenance Manual 2 WKM-TOV-IOM

TABLE OF CONTENTS

List of components 3

Catalog number information 4

Nameplate information 4

Scope 5

Storage 5

Installation 5

Flow direction 5

Shaft position 5

Disc/pipe clearance 6

Disc protrusion length inside pipe 7

Procedure 8

Worm gear operated 8

Valve position verification 12

Routine maintenance 13

Troubleshooting guide 13

Packing maintenance 14

Sealing elements maintenance 15

Bottom cap gasket maintenance 17

Mounting Operators 18

Torque charts 19

Notes:

This manual is a general representation of the information required for correct usage of the CAMERON WKM®TOV

valve. More specific information is available and can be supplied per customer request. CAMERON valve reserves

the right to amend this document, with no prior notice. Please reference the applicable drawing and/or parts list

when using this IOM manual.

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Installation, Operation and Maintenance Manual 3 WKM-TOV-IOM

List of components

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Installation, Operation and Maintenance Manual 4 WKM-TOV-IOM

Catalog number information

Figure number:

The figure number shown below identifies specific valve configuration details of WKM®Triple

Offset Valves such as valve type, pressure class, end connections, body/bonnet and trim

materials, and special features.

Nameplate information

1. Valve size

2. Valve class

3. Seal material See for reference nameplate drawing below.

4. Body material

5. Disc material

6. Shaft material

7. Flange type

8. Figure number

9. Serial number

10. Maximum CWP

TOV

Installation, Operation and Maintenance Manual 5 WKM-TOV-IOM

Shaft position

WKM®Triple Offset Butterfly Valves perform equally well

with the shaft in the vertical or horizontal position. Cameron

recommends that the optimum valve installation is with the

shaft in the horizontal plane.

Installing the valve with the shaft at an angle will minimize

any problem associated with solid particles present in the

fluid that otherwise could deposit in the lower bearing area.

Scope

The WKM®Triple Offset Valves are metal seated

butterfly valves. They are designed and manufactured in

a manner that allows the disc to rotate into and out of

the seat with absolutely no interference. This results in a

sealing system that does not depend upon interference

to achieve the seal like other butterfly valves.

Storage

After assembly and test, WKM®Triple Offset Valves

are placed in the closed position. Carbon steel valves

are painted on the external surfaces. Flange

protection is provided for all valves. Valves should be

stored in a clean, dry location. Outdoor storage is

permissible, but should be off the ground and

protected from the elements. For long term storage,

contact your Cameron representative.

Installation

Although WKM® Triple Offset Butterfly Valves have bi-

directional sealing capabilities and will operate in any

position, the following positions are generally

recommended.

Flow direction

It is preferred to install the valve in the flow direction

as indicated by the arrow on the valve body. The best

sealing performance will be maintained even when

pressure acts on the non-preferred side of the valve,

however it is recommended to install the valve in the

direction of the flow arrow when the service tightness

requirements are more stringent in one specific

direction (Figure 1).

Figure 1: Flow direction

Flow direction

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Installation, Operation and Maintenance Manual 6 WKM-TOV-IOM

Disc/pipe clearance

Before beginning installation, note the following:

Disc/pipe clearance should be checked before

beginning installation to avoid the possibility of

scraping on the seal ring edge on the pipe I.D. and

damaging the sealing surface. Chamfer is

recommended on the pipe flange.

Minimum pipe I.D. required for disc swing clearance:

Class 150 valves - Standard pipe or equivalent

Class 300 valves - Schedule40/XS pipe or equivalent

Class 600 valves - Schedule 100 pipe or equivalent

Consult Table 1 - Disc clearance for required flange

modifications for other pipe schedules (Figure 2).

Table 1 –Disc Clearance

Figure 2: Disc/pipe clearance

Pipe Flange

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Installation, Operation and Maintenance Manual 7 WKM-TOV-IOM

Disc Protrusion length inside pipe

LUG DESIGN

ISO DESIGN

PPE - PREFERRED PRESSURE END

NPPE - NON PREFERRED PRESSURE END

PPE

NPPE

SIZE

CLASS

LUG DESIGN

ISO DESIGN

LP DESIGN

PROTRUSION

ON PPE

SIDE- "A"

(mm)

PROTRUSION

ON NON PPE

SIDE- "B'

(mm)

PROTRUSION ON

PPE SIDE- "X"

(mm)

PROTRUSION ON

NON PPE SIDE- "Y'

(mm)

PROTRUSION ON

PPE SIDE- "M"

(mm)

PROTRUSION ON

NON PPE SIDE- "N'

(mm)

150

NO PROTRUSION

300

NO PROTRUSION

150

NO PROTRUSION

300

NO PROTRUSION

600

NO PROTRUSION

150

NO PROTRUSION

300

NO PROTRUSION

600

38.0

NO PROTRUSION

150

NO PROTRUSION

300

NO PROTRUSION

600

46.5

34.5

NO PROTRUSION

10"

150

NO PROTRUSION

300

NO PROTRUSION

600

61.5

51.5

NO PROTRUSION

12"

150

107

NO PROTRUSION

300

101

NO PROTRUSION

600

80.0

57.0

9.0

NO PROTRUSION

14"

150

119

NO PROTRUSION

300

106

NO PROTRUSION

600

11.5

16"

150

139

118

NO PROTRUSION

300

123

104

NO PROTRUSION

600

25.5

15.5

18"

150

166

136

104

NO PROTRUSION

300

143

124

104

NO PROTRUSION

600

111.0

88.0

41.0

20"

150

179

151

120

111

NO PROTRUSION

300

159

139

120

111

NO PROTRUSION

600

119.5

99.0

48.5

38.0

24"

150

221

184

154

142

NO PROTRUSION

109

300

154

142

154

142

NO PROTRUSION

600

156

138

NPPE

PPE

LP DESIGN

PPE

NPPE

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Installation, Operation and Maintenance Manual 8 WKM-TOV-IOM

Procedure

The following procedure applies to new installation

between standard ASME B16.5 pipe flanges.

When replacing a valve from an existing installation,

The flange faces shall be cleaned of any residual

gasket material before starting.

Actuation shall not be removed from the valve for

installations unless the actuator must be transferred

during replacement.

1. Protective covers shall be removed from the valve.

Be sure valve is completely closed.

2. Lug body valves shall be positioned between the

flanges with gaskets properly centered and then the

bolting inserted (Figure 4).

3. Disc clearance shall be carefully checked by placing

the valve in the full open position. Should automated

valves be difficult or impossible to cycle, check that the

raised face of the flange matches the raised area on

the valve face.

4. All bolting shall be tightened in a crossover or star

pattern to insure even sealing (Figure 4), refer figure 9

for star pattern tightening method

5. Packing retainer tightness is pre-tested at the

factory. Should shaft leakage occur at start-up, the

packing retainer can be adjusted to stop the leak.

Avoid over tightening which may result in excessive

operating torque or premature packing wear.

Worm gear operated

Worm gear operators, available as standard

equipment on all valves, which are not power actuated,

have an arrow on top of the operator that indicates the

"OPEN - CLOSED" position of the disc (Figure 5)

Counter-clockwise rotation of the hand wheel opens

the valve, clockwise rotation closes the valve.

Raised Face Area

Lug Body

Figure 5: Gearbox

Figure3: Flange detail

Figure 4: Lug body

Close stop

adjustment

Open stop

adjustment

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Installation, Operation and Maintenance Manual 9 WKM-TOV-IOM

Recommended bolt and stud lengths for installation in ASME B16.5 flanges are provided in the Table 2.

Valve

Bolt Circle

Dia. (in)

Bolt Size

Lug Body

Size

Class

Qty.

Stud length

"A" (in.)

Cap screw length

"B" (in.)

3''

150

6.00

5/8-11 UNC

2.70

1.95

300

6.63

3/4-10 UNC

3.01

2.13

4''

150

7.50

5/8-11 UNC

2.85

2.11

300

7.88

3/4-10 UNC

3.29

2.42

600

8.50

7/8-9 UNC

4.20

3.20

6''

150

9.50

3/4-10 UNC

3.04

2.17

300

10.63

3/4-10 UNC

3.56

2.68

600

11.50

1.000-8 UNC

4.98

3.85

4.10

3.23

8''

150

11.75

3/4-10 UNC

3.32

2.45

300

13.00

7/8-9 UNC

3.83

2.83

600

13.75

1 1/8-8 UN

5.89

4.64

4.91

3.65

10''

150

14.25

7/8-9 UNC

3.67

2.67

300

15.25

1.000-8 UNC

4.41

3.28

3.91

2.78

600

17.00

1 1/4-8 UN

6.44

5.07

5.38

4.01

12''

150

17.00

7/8-9 UNC

3.73

2.73

300

17.75

1 1/8-8 UN

4.86

3.60

4.27

3.01

600

19.25

1 1/4-8 UN

6.64

5.27

5.51

4.14

14"

150

18.75

1-8 UNC

4.22

3.09

300

20.25

1 1/8-8 UN

5.26

4.00

3.25

3.13

600

20.75

1 3/8-8 UN

6.97

5.48

4.49

4.37

Note:

For blind threaded holes

stud and nut is preferable

Table 2

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Installation, Operation and Maintenance Manual 10 WKM-TOV-IOM

Valve

Bolt Circle

Dia. (in)

Bolt Size

Lug Body

Size

Class

Qty.

Stud length

"A" (in.)

Cap screw length

"B" (in.)

16"

150

21.25

1-8 UNC

4.17

3.04

300

22.50

1 1/4-8 UN

5.73

4.36

4.71

3.34

600

23.75

1 1/2-8 UN

7.54

5.92

6.32

4.70

18"

150

22.75

1 1/8-8 UN

4.77

3.51

3.83

2.57

300

24.75

1 1/4-8 UN

5.86

4.49

4.83

3.46

600

25.75

1 5/8-8 UN

8.24

6.49

6.78

5.03

20"

150

25.00

1 1/8-8 UN

5.02

3.68

3.95

2.62

300

27.00

1 1/4-8 UN

6.06

4.61

5.04

3.59

600

28.50

1 5/8-8 UN

8.56

6.74

7.19

5.36

24"

150

29.50

1 1/4-8 UN

5.32

3.87

4.41

2.96

300

32.00

1 1/2-8 UN

6.92

5.22

5.70

4.00

600

33.00

1 7/8-8 UN

9.59

7.51

8.02

5.94

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