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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.
Wuxi St.Hans Air Controls E/I Co.,Ltd. www valve controls com. - .
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
Wuxi St.Hans Air Controls E/I Co.,Ltd. 2www valve controls com. - .
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
Wuxi St.Hans Air Controls E/I Co.,Ltd. 3www valve controls com. - .
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.