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Declutch

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20 series aluminum manual gear box applies to 90¡ãrotary type butterfly valve, ball valve and plug valve etc. With electrostatic coating on the surface, the aluminum alloy housing is pleasing in appearance and highly corrosion-resistant and wear-proof.


Structure & Material£º

No.

Parts

QTY

Material

1

Screw

4

Stainless steel

2

Indicator Cover

1

Plastic

3

Cover

1

Aluminum

4

O-ring(Cover)

2

NBR

5

Key

1

Carbon steel with black oxidation

6

Worm

1

Nodular cast iron

7

O-ring(Back)

1

NBR

8

Body

1

Aluminum

9

Adjust screw

2

Carbon steel with black oxidation

10

Gasket(Adjust screw)

2

Carbon steel with zinc coating

11

Nut(Adjust screw)

2

Carbon steel with zinc coating

12

Cover of Nut(Adjust screw)

2

NBR

13

Bearing

2

Powder metallurgy

14

Worm

1

Carbon steel #45

15

O-ring(Front)

1

NBR

16

Worm shaft

1

Carbon steel #45 /Stainless steel

17

Handle wheel

1

Carbon steel with epoxy coated

18

Key

1

Carbon steel with black oxidation


Dimensions£º

Model

Square

ISO 5211

Flange

Type

¦µISO 

Holes

Ø

Outptut/Input
Torque Ratio

Reference

Output

Torque(Nm)

Butterfly

valve

Ball valve

Model

WT(KG)

20070

8/9/11/

14/17

F05,F07

50,70

140

1:9.6

180

32-150

50

1.2

20090

8/9/11/

14/17

F07,F09

70,90

200

1:12.5

300

32-200

63

2.1

20102

17/19/22

F07,F10

70,102

250

1:12.5

540

200-300

80

3.5

20125

17/19/22

F10,F12

102,125

300

1:12.5

675

250-350

100

4.8

20140

22/27

F14

140

400

1:10

1310

350-400

150

9.5

20140B

22/27/

Ø50¡Á14

F14

140

600

1:11

1790

400-450

200

11

20165

36/

Ø50¡Á14

F16

165

600

1:19

3250 

450-500

250

17.5

20254

Ø60¡Á18/

Ø65¡Á20/

Ø80¡Á22

F16,F25

165,254

700

1:19

5500 

600-650

300

28


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