Actreg SY Series Supplement

SCOTCH YOKE PNEUMATIC ACTUATORS
MMM-ACTREG-S&Y Rev.0
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SY SERIES
SCOTCH YOKE ACTUATOR
INSTALLATION AND OPERATING INSTRUCTION MANUAL
Manufacturing program:
Quality & Environmental Management:
V
R

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REVIEW CONTROL
PROCEDURE REF. DOC. MMM-ACTREG-S&Y
Rev.
Date
Carried out
by
Approved
Description
0
03-12-2012
F. Zanuy
Rubio
J.Tejedor
First Edition

SCOTCH YOKE PNEUMATIC ACTUATORS
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Index
1.-Sumarize
2.-Working Conditions & Application
3.-Technical Data
4.-Installation Tube & Fitting
5.-Operation
6.-Adjustment of Valve On/Off Position
7.-Module Design Instruction
8.-Assembly Drawing & Parts List
9.-Module Replacement
10.-Cautions
11.-Maintenance
Appendix
Appendix 1: JC-MI-S&Y-01E: Pneumatic Cylinder of Scotch Yoke Actuators

SCOTCH YOKE PNEUMATIC ACTUATORS
MMM-ACTREG-S&Y Rev.0
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1.- Summarize
The instruction manual for SF series scotch yoke pneumatic actuators for all
models of SY01F14, SY01F16, SY01F25, SY01F30, SY01F35, SY01F40, SY01F48,
and SY01F60.
2.- Working Conditions & Application
The Ambient Temperature:
Standard actuator: -20°C to +80°C
High temperature actuator: -20°C to +120°C
Operating Pressure:
Pneumatic actuator: 3~7 Bar
Operating Media:
Pneumatic actuator: dry and clean compressed air
SY series actuators are available for Ball Valves, Butterfly Valves, Plug
Valves, Air Valves and all the 90º rotation valves, widely applicable to the
chemical industry, food & beverage, metallurgy, offshore platform,
pharmaceuticals, energy, paper, textile and other industries.
3.- Technical Data
Output Torque:
Double Acting: 830~226,400Nm
Spring Return end torques: 307~71753Nm

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4.- Installation, Tube & Fitting
4.1.-The installation environment should be avoided in high temperature, low
temperature, high moisture and corrosive place.
4.2.- The conduit is usually use brass and stainless steel pipe , try to avoid
vibration, it’s easy to make the tubes slapped, damaged, otherwise it will cause to
leakage. It’s necessary to take action when violent vibration. For it may vibration
or impact during transportation, check the interface of all tubes before using the
products, if there are any slaps or leakage, please screw the interface till no
leakage.
4.3.-The conduit size of electrical accessories:
The different pneumatic actuators have different air inlet sizes, from 3/8” to 2”,
users should choose the tube size according to specific requirement. The air inlet
is sized by different pneumatic actuator size. Detailed sizes please refer to the
following table:
4.4.- Air inlet size table:
Actuator
Size
200
250
300
350
400
450
500
Air Inlet
Size
3/8”
½”
½”
½”
¾”
¾”
¾”
Actuator
Size
550
600
700
800
900
1000
1100
Air Inlet
Size
¾”
1”
1”
1 ½”
2”
2”
2”
4.5.-The quick operation actuator must use bigger size air tube. Choose the
same size brass, stainless steel or flexible metallic tube from compressor or air
reservoir to actuator tubes.
4.6.- Operating media is filtered dry air, dew point over -15°C must use dryer.

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4.7.- Pneumatic Actuator Air Inlet Position Indication.
Single acting pneumatic actuator Double acting pneumatic actuator
4.8.- Dimensions and Positions of Accessories Installation
Bracket dimension for solenoid valve, air valve, air set
SF14~SF25 SF30~SF60
Top mounting pad of switchbox & E/P positioner
Air Exhaust
Air Inlet
Air Exhaust
Air Inlet
Solenoid
Valve,Air-Valve,Relief
Valve
Swichbox. E/P
Positioner
Solenoid
Valve,Air-Valve,Relief
Valve
Swichbox. E/P Positioner

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5.- Operation
5.1.- Auto-Operation
On/Off Control Pneumatic Actuated Valve:
A) The valve open when solenoid valve energized (Failure Close Type)
B) The valve close when solenoid valve de-energized (Failure Close Type)
C) The valve close when solenoid valve energized (Failure Open Type)
D) The valve opens when solenoid valve de-energized (Failure Open Type)
Modulating Control Pneumatic Actuated Valve:
To give 4-20mADC signal to Electro-Pneumatic positioner(or 0.02~0.1Mpa to
Pneumatic–Pneumatic positioner) the valve position can be proportional
controlled by the input signal.
5.2.- Manual Operation Way
5.2.1.- Double Acting Pneumatic Actuator declutchable worm gear manual
override the declutch able worm gear manual override are sued for SY01F14 &
SY01F16 double acting pneumatic actuators.
Pneumatic Actuator
Open
Close
Manual Overrde
Lock Handle
Clutch Lever

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To release the air firstly, How to operate the declutchable manual override, to
engage manual operation. First pull out the lock handle, and then rotate the clutch
lever in anti-clockwise direction until engagement takes place. To return the
automatic mode, first pull out the lock handle, then rotate the clutch lever in
clockwise direction until engagement takes place.
5.2.2.- Single Acting Pneumatic or hydraulic Actuator
5.2.2.1.- Jackscrew Operator
The jackscrew operator only available in SY01F14 & SY01F16 single acting
actuator which is side mounted operator. Turning the hand wheel, control the
valve position by screwing in & out the trapezoid screw in spring case. For the
valve, turn hand wheel clockwise to open, counter-clockwise to close.
SY01F14 & SY01F16 after manual operation, screw out the trapezoid screw
when it change to auto-operation way, to ensure the auto-operation smoothly
realized. Avoid to screw out integral trapezoid screw, the valve open & close
position will be influenced if the screwing is not in place.
Trapezoid Screw
Hand wheel

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5.2.2.2.-Hydraulic Manual Override
The hydraulic manual override is used for SY01F25 ~ SY01F60. The
hydraulic manual override is an integral device which consists of manual pump,
tank, globe valve, check valve and other parts, easy to operate and maintain. The
major parts as follows:
The Operation of Hydraulic Manual Override:
a). Close globe valve(1), open globe valve (2);
b). Inject oil to the oil cylinder by operating manual pump through lever handle,
piston of oil cylinder press the spring to open valve.
c). Close globe valve (2).
d). When close the valve, Open the globe valve (1) & (2) After manual
operation, open globe valve (1) & (2), at the meantime when it change to
auto-operation way.
Manual pump
Tank
Oil pipe
Lever
Globe valve2
Globe valve1
Globe valve
Manual pump
Lever
Pressure gauge

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6.- Stroke Adjustment
The stroke adjustment is available from 80° to 100°
The way of stroke adjustment:
Loosened the stroke nut firstly,
a. Screw out the open direction stroke bolt, open position increased, screw in
the open direction stroke bolt, open position decreased,
b. Screw out the close direction stroke bolt, close position increased, screw in
the close direction stroke bolt, close position decreased
Note: Please note to tighten the bolt nut after adjusting the appropriate on/off
position.
Bolt Open Position
Bolt Close Position
Nut
Nut