ALXL Series DeclutchableManual Override

Description/Overview

ST.HANS GROUP

SpecificationsEnclosure -weatherproof : IP65.

Temperature -20 to +80- ℃ ℃Block and DeviceVent – isolates unit from controlsystem during manual operation

Available Option

FeaturesCompact, Modular Design - fits between valve and actuator for a complete manual override system.

Eight Model Sizes - effectively meet valve/actuator torque requirements up to 22,100Nm.

Self-locking Worm Gear Design - provides positive manual positioning and eliminates backdrive on

spring-return units.

Integral Drive Sleeve and Gear - permits smooth, reliable operation for extremely long life.

Snap-In-Place Clutch Indicator - ensures positive engagement.

Externally Adjustable limit Stops - prevent over-travel during manual operation.

Manufactured with die-casting aluminum or cast iron housing.

ISO5211 direct mount patterns.

Easy for customer to choose relative position between gear operator and valve, with two keyway

apart 90~ in the inner hole of worm gear.

Easy to realize the manual drive or the pneumatic drive with the place-pin. Filled with special

lubricant before leaving the factory.

Weatherproof is IP65.

Te l :86-510-85210312

Fax 86-510-85223552:

@ - .market1 alpha achem com

Wuxi St.Hans Air Contols E/I Co.,Ltd.No.48Xihong Road, Meicun Industr ial Park,N e w A r e a W u x i , j i a n g s u , 2 1 4 11 2 , C h i n a

The ALXL Series Declutchable Manual Override allows simpleand reliable hand positioning of valves, dampers, and otherquarter turn devices to override existing pneumatic or hydraulicrotary actuators.

Available in eight model sizes to meet valve/actuator torquerequirements up to 22,100 Nm, the ALXL Series DeclutchableManual Override features a compact, modular design, and self-locking gear on steel worm for safe andwith casting iron wormeasy operation, positive manual positioning, and extremely

long life. 90 rotation of the clutch lever located at the base of゜the hand wheel allows the worm gear to engage the outputdrive sleeve.

Recommended for all spring return actuators and on valveswith an operating torque in excess of 70Nm, the ALXL SeriesDeclutchable Manual Overr ide can be adapted to anypneumatic quarter turn actuator and can be field installed onexisting automated valves.

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Product line

1

The ALXL series declutch override gear box is specially designed for butterfly valves, ball valves and plug

valves together with pneumatic actuators.

This device allows manual operation during installation, system testing and in the event of air-supply failure.

The ALXL Series mounts directly to most of the popular rack and pinion style actuators on the market, and

does not require a bracket between the pneumatic actuator and declutch override. The unit comes completely

with a coupler that connect the pneumatic actuator to the valve.

Introduction Declutch Override Gear Box

Structure & Parts and Material & Installation

Material

NO. Description Qty. Material option

Body(for size of 26,38,54) Die casting Aluminum with epoxy coated

1 Body 1Casting iron with epoxy coated

PTFE coated

2 Adjust screw 2 SS304

3 O-ring(Adjust screw) 2 NBR

4 Nut(Adjust screw) 2 SS304

5 Needle bearing 1 Carbon steel

6 O-ring 1 NBR

7 Eccentric bushing ( )1 1 Carbon steel with electric polyester coated SS304

8 O-ring(eccentric bushing) 2 NBR

9 Worm gear 1 Casting iron(QT500-7GB1348-88)

10 O-ring（Worm gear） 2 NBR

Bracket cap (for size of 26,38,54) Die casting Aluminum with epoxy coated11 Bracket cap

1Casting iron with epoxy coated

12 Screw 4 SS304

13 Thrust washer 4 SS304

NO. Description Qty.

14 Pin 2

15 Lock handle screw 1

16 Clutch lever 1Carbon steel with

electric polyester coated

17 Key 1

18 Screw 1

19 Worm shaft1

20 Worm 1

21 Needle bearing 1

22 O-ring 1

23 Screw 2

24 Bearing 1

25 Eccentric bushing ( )2 1

26 Handle wheel 1

27 Cap nut 1

Material option

SS304

Carbon steel

Carbon steel

SS304

Carbon steel

Carbon steel

NBR

Carbon steel SS304

Polyoxymethylene

SS304

Carbon steel SS304

Carbon steel withelectric polyester coated

Carbon steel withelectric polyester coated

PTFEcoated

(for size of 78,80, , , )98 100 118

(for size of 78,80, , , )98 100 118

(for size of26 38 54 78 80, , , , )

PTFE coated(for size of

26 38 54 78 80, , , , )

Carbon steel

*The body and bracket cap is sealed by Oil resistant silicone sealant.

Carbon steel with epoxy coated

Specification and Output Torque

Dimension

Model

ALXL26:1

ALXL38:1

ALXL54:1

ALXL80:1

ALXL78:1

ALXL98:1

ALXL100:1

ALXL118:1

d

22

26

38

38

48

48

60

60

80

80

100

120

180

b

6

8

10

10

14

14

18

18

22

22

28

32

45

t

25.4

29.3

41.3

41.3

51.8

51.8

64.4

64.4

8 .45

8 .45

105.3

129.3

196

D1

70

125

140

165

165

254

356

483

F

M8

M12

M16

M20

M20

M16

M30

M36

D2

70

102

140

165

G

M8

M10

M16

M20

A

70

100

110

130

156

220

230

300

Φ445

Φ600

H

99

117

118

148

150

195

195

250

275

E

50.5

65

85

124

142

229

258

391

390

D3

70

125

140

165

165

254

356

483

I

Φ9

Φ14

Φ18

Φ22

Φ22

Φ18

Φ32

Φ39

D4

70

102

140

165

J

Φ9

Φ12

Φ18

Φ22

K

Φ180

Φ200

Φ300

Φ400

Φ 005

Φ800

Φ800

Φ1000

Φ1000

L

155

195

205

245

265

410

430

550

600

B

160

195

235

320

360

550

605

900

1050

C

145

175

215

298

340

530

585

870

900

D

110

140

180

250

285

460

520

800ALXL118:1

180 45 196 4

No.

1

2

3

4

5

6

7

8

Model

ALXL26

ALXL38

ALXL54

ALXL80

ALXL78A

ALXL98

ALXL100

ALXL118

Gear Ratio

26:1

38:1

54:1

80:1

78:1

98:1

100:1

118:1

Input Torque(Nm)

70

60

120

140

200

300

400

900

Output Torque(Nm)

300

550

1200

2000

3600

9000

13000

22100

Weight(Kg)

4

5.5

9

31

44

135

190

540

Note:This diagram shows off position

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Product line

8 05

50 M6 50 Φ7

Dimensions

Technical data

ABV001 BLOCK AND VENT DEVICE

Main Features

tnihtnatropmItsoM100VBAevlaVloopSfometI

Materials in contact with fluid Aluminum, Brass, Buna NBR

Coating Anodized coated

Seal Buna N

Function 5/2

Vent Port 1/8" or 1/4"BSPP

Assembly and Connection 24 32 Namur

Working Medium less than 40 m filtered and dried airμ

Maximum Orifice of Flux

CV 1.4

Working Temperature -20℃ ~ 80℃

Working Pressure 0 ~ 8 bar

In the "A" position(the knob close to the body), actuator two ports are opened

to solenoid valve for normal control.

In the "M" position(the knob far from the body),actuator two ports are opened

to vent port and the supply air from solenoid valve is blocked off.

Doub

leAc

ting

B

A

M

A

12

0

24

12

4545

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When the pneumatic actuator needs to be isolated from the air control system of the plant, typically in the application of

th valve + declutch manual override + actuator, the valve needs to be manual operated by the declutch, the "Block and

Vent" will contribute more in the operation This device provides a local means of blocking the air supply from both

solenoid valve and actuator, and at the same time venting all compressed air from both chambers of thactuator. This

device is available for both double acting and spring return actuator.

12

+0

.1-

12

+0

.1-

32+0.1-

45

Manual Operation and Pneumatic Operation

Manual operation (MO) Pneumatic operation (PO)

Product line

When the handle is locked in the (PO)position, the system can be operatedautomatically.

Double Acting

Double Acting Spring Return

Clutch Lever PO positionClutch Lever MO position

When the handle is locked in the (MO) position, thesystem can be operated by rotating the handwheel. Whenthe system is operated manually, the air pressure inside ofpneumatic actuator should be totally exhausted. In this

Block and Vent Device Block and Vent Device

Spring Returnoperation, the"Block and VentDevice" will

contribute more.Please check theinformation belowfor more details.