ACTUATECH GD2880 User manual

EN - 1
ITENDEFRES
ACTUATECH S.p.A
Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy • Ph. [phone] • Fax [phone] • actuatec[email protected]om • www.actuatech.com
Rif. MAN80937 - 03/22
INSTRUCTION MANUAL
SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR
GD2880 - GD8000 AND GS1440 - GS4000
“GD” DOUBLE ACTING VERSION
“GS” SPRING RETURN VERSION

EN - 2
ITENDEFRES
ACTUATECH S.p.A
Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy • Ph. [phone] • Fax [phone] • actuatec[email protected]om • www.actuatech.com
Rif. MAN80937 - 03/22
INSTRUCTION MANUAL
SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR
GD2880 - GD8000 AND GS1440 - GS4000
INDEX:
Pag.
1. GENERAL FEATURES 3
2. WORKING CONDITIONS 3
3. OPERATION AND ROTATION DIRECTION 6
4. SAFETY INFORMATION 8
5. INSTALLATION INSTRUCTION 8
6. MATERIALS AND THEIR DURABILITY 10
7. MAINTENANCE 11
8. ATEX SPECIFICATION 14
9. SPECIAL VERSIONS 15
10. STORAGE 15
11. TROUBLESHOOTING 16
12. DISPOSAL OF PRODUCTS AT THE END OF THEIR LIFE CYCLE 16
13. DECLARATION OF CONFORMITY 16
Environmentally friendly: under the green leaf icon you can nd the instructions for
a correct and environmentally friendly handling of the product.
ACTUATECH reserves the right to change, at any time, the features and data of its own products, to better improve the quality and
the duration of said products.

EN - 3
ITENDEFRES
ACTUATECH S.p.A
Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy • Ph. [phone] • Fax [phone] • actuatec[email protected]om • www.actuatech.com
Rif. MAN80937 - 03/22
INSTRUCTION MANUAL
SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR
GD2880 - GD8000 AND GS1440 - GS4000
FOREWORD
The present User’s Installation and Maintenance Manual has been edited in conformity with:
- 2006/42/EC Directive “Machinery”;
- 2014/34/UE Directive “Equipment and protection systems designated to be used in potentially explosive atmospheres” (ATEX).
The following standards/technical specications also apply:
- EN 15714-3:2009 Industrial valves: Actuators – Pneumatic part-turn actuators for industrial valves.
- IEC 61508:2010-1/7 Functional safety of electrical/electronic/programmable electronic safety-related systems. Part 1:7
- UNI CEN/TS 764-6:2005 Pressure equipment Part 6: Operating instructions structure and contents.
Below you will nd the safety instructions, the minimum information for storage / warehousing, the installation, the commissioning, the
maintenance and the instructions for disposal of products at the end of their life cycle for the pneumatic actuators:
ACTUATECH disclaims any liability for damage caused by improper use, even if partial, respect to the information contained in this
manual.
1. GENERAL FEATURES
ACTUATECH manufacture a wide range of part turn pneumatic actuators for valve remote control.
The actuators are available on Double Acting “GD” and Spring Return “GS” versions.
- The principle of the actuator application is to open and close the connected valve, without the manual operation with lever or hand
wheel, by means of an electric-pneumatic connection on remote control.
- Scotch – Yoke is a mechanical system that allows to transform the linear force into a rotary torque.
ACTUATECH applies the scotch - yoke system for its actuator production to transfer the pistons linear force to a driving shaft torque.
This system provides a long working life and best performance with the minimum energy consumption.
- ACTUATECH Scotch-Yoke system with its oblique grooves produces a torque curve with the highest torque at the start opening
operation in order to overcome the valve breakaway torque.
The maintenance should be done by ACTUATECH trained personnel only.
This instruction manual contains important information regarding the ACTUATECH Scotch-Yoke pneumatic actuator operation, in-
stallation, maintenance and storage.
Please read carefully before installation and keep it in a safe place for further reference.
2. WORKING CONDITIONS
a) Construction
Standard ACTUATECH actuators are suitable for indoor and outdoor installation. The laser marking or a printed label on the actuator
body gives the actuator technical characteristics: type, size, operating pressure, output torque, operating temperature, ange con-
nection, product code and production date (see drawing pag.5).
b) Motive energy
The operating media should be dry and ltered compressed air not necessarily lubricated or inert gases compatible with internal
actuator parts and lubricants.
The operating medium shall have a dew point equal to – 20 °C or, to be at least, 10 °C below the ambient
temperature (ISO 8573-1, Class 3). The maximum particle size shall not exceed 40 μm (ISO 8573-1, Class 5).
c) Supply operating media pressure
The maximum supply pressure is 8,4 bar (120 psi) (7 bar for GD8000)
Nominal supply pressure is 5,6 bar (80 psi), working pressure range from 2,5 bar (36 psi) up to 8,4 bar (120 psi).

EN - 4
ITENDEFRES
ACTUATECH S.p.A
Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy • Ph. [phone] • Fax [phone] • actuatec[email protected]om • www.actuatech.com
Rif. MAN80937 - 03/22
INSTRUCTION MANUAL
SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR
GD2880 - GD8000 AND GS1440 - GS4000
d) Operating temperature
Actuator standard working temperature range form –20°C (-4°F) to 80°C (176°F)
For low and high temperature versions please contact ACTUATECH. For high humidity and low temperature application are recom-
mended to use a supplementary protection (e.g. screens, sheds or integral painting).
e) Operating drive rotation
ACTUATECH actuator provides a standard stroke of 100° rotation (-5° +95°), with stroke adjustment of 10°.
Some models are also available with stroke of 90°.
f) Cycle time
The cycle time is dependent on different operating and installation factors such as the supply pressure, the ow capacity, the con-
nection pipe size, the solenoid valve performance, the valve torque and characteristics, environmental temperature condition.
Actuator opening, closing and open/close cycle times (sec.).
The above time table is referred to a standard actuator working cycle at the following tests conditions:
Ambient temperature: 18°C – 25°C
Motive energy operating medium: compressed air at 5,6 bar
Nominal cycle: 90° in both directions
Load: free
GD actuators operate with solenoid valve 5/2 ISO 1-2. While the GS actuators with solenoid valve 3/2.
Time tested with Electronic Timer device.
NOTE: different working condition such as air pressure, piping connection, lters or solenoid valves, could change the timing of the
operations.
g) Lubrication.
The actuators are factory lubricated for the standard working condition life.
During maintenance and reassembling ACTUATECH recommends using TECNOLUBE SYNTHY POLYMER 402 or equivalents.
h) Internal wear protection
The cylinder is lapped to obtain a surface with ne roughness and is protected with 20μm technical oxidation. The pistons slide sup-
ports are in P.T.F.E. The use of steel bearings on the Scotch-Yoke system ensures no play and low friction during operation.
i) External protection
ACTUATECH standard actuators are suitable for indoor and outdoor installation. The aluminium body and the caps are external pro-
tected form corrosion and wear with 20 μm technical oxidation. Driving shaft and external screws/nuts are in stainless steel.
Some models has driving shaft made in nickel plated carbon steel.
For aggressive atmosphere and severe environmental condition select the required protection from the external nishes showed in
our catalogue or contact directly our technical department.
Actuator size 0°-90° cycle time
SEC
90°-0° cycle time
SEC
GD2880 1,77 1,41
GD3840 2,09 1,68
GD5760 3,12 2,52
GD8000 3,91 3,4
Actuator size 0°-90° cycle time
SEC
90°-0° cycle time
SEC
GS1440 1,37 1,4
GS1920 1,62 2,03
GS2880 2,17 2,42
GS4000 3,83 3,97

EN - 5
ITENDEFRES
ACTUATECH S.p.A
Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy • Ph. [phone] • Fax [phone] • actuatec[email protected]om • www.actuatech.com
Rif. MAN80937 - 03/22
INSTRUCTION MANUAL
SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR
GD2880 - GD8000 AND GS1440 - GS4000
j) Functional Safety
The ACTUATECH S.p.A. pneumatic actuators are also suitable for installations which require high level of functional reliability, up to
SIL3, in compliance with the IEC 61508 standard.
k) Marking and classication
All ACTUATECH actuators bodies are marked with the Manufacturer name and address, the actuator Type code including the Series
and Size, and its range of Pressure and Temperatures working conditions and limits.
Supplemental marking according to ATEX Directive (see section 8)
Marking instructions where the temperature is different from the standard one:
- low temperature version: T.min.= -50°C T.max= 60°C
- high temperature version: T.min.= -20°C T.max= 150°C
1. Name of the company in charge of marketing the product in the E.U.
2. Address of the company in charge of marketing the product in the E.U.
3. Model (with standard anging), operating pressure and temperature.
4. ATEX class of compliance with the rules and level of protection.
5. Name of Technical File deposited with a Notied Body.
6. Product code.
7. Month and year of production.

EN - 6
ITENDEFRES
ACTUATECH S.p.A
Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy • Ph. [phone] • Fax [phone] • actuatec[email protected]om • www.actuatech.com
Rif. MAN80937 - 03/22
INSTRUCTION MANUAL
SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR
GD2880 - GD8000 AND GS1440 - GS4000
3. OPERATION AND ROTATION DIRECTION
Double Acting.
The pistons of standard GD actuators are mounted as shown below. This provides the highest torque at the valve start opening for
valve clockwise to close. Both limit positions of the pistons travel can be ne adjusted (see pg.9).
The port 2 is in connection with the cylinder side chambers, supplying the pressurised air in port 2 the standard Double Acting actuator
drive shaft rotates counter clockwise to open, while the port 4 is in connection with the intermediate chamber and when pressurised
the drive shaft rotates clockwise to close.
Single Acting, Spring Return fail to Close.
The pistons of standard GS actuators are mounted as shown below. Although spring force is diminished, the geometry of the mechanism
provides a greater torque at the end of the spring stroke. Both limit positions of the pistons travel can be ne adjusted (see pg.9).
Caution. In order to avoid suction of dust or dirt inside of the actuator chambers during the spring action, install a lter on the port 2
The port 4 is in connection with the intermediate chamber and when pressurised the drive shaft rotate counter clockwise to open.
Important.
Special Double Acting version and Spring Return fail to open actuators with different piston positions have different rotation to close
and to open: please follow their special instructions.

EN - 7
ITENDEFRES
ACTUATECH S.p.A
Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy • Ph. [phone] • Fax [phone] • actuatec[email protected]om • www.actuatech.com
Rif. MAN80937 - 03/22
INSTRUCTION MANUAL
SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR
GD2880 - GD8000 AND GS1440 - GS4000
- Connection schema
Actuator operation functionality remote control should be done by means of direct solenoid valve connection to the actuator standard
interface VDE/VDI 3845 NAMUR, or by means of pipes screwed on the ports marked with the numbers 2 and 4 and connected to a
separate control cabinet.
Typical air connection schema
- Rotation direction.
In accordance with the international standard ISO 5599-2 the actuator air ports connection position, location, orientation and form
shall be clearly identied and marked with the numerate 2 and 4.
Standard Double Acting and Simple Acting Spring Return actuators shall be Clockwise (CW) direction to valve Close, and Counter
Clockwise (CCW) direction to valve Open.

EN - 8
ITENDEFRES
ACTUATECH S.p.A
Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy • Ph. [phone] • Fax [phone] • actuatec[email protected]om • www.actuatech.com
Rif. MAN80937 - 03/22
INSTRUCTION MANUAL
SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR
GD2880 - GD8000 AND GS1440 - GS4000
4. SAFETY NOTICE
- The actuator should be used within the pressure mentioned limits only, operating the actuator over the pressure limit will damage the
internal actuator parts.
- Operating the actuator over or under the temperature limits will damage the internal and external parts.
- Operating the actuator in corrosive environments without the required external protection will damage the actuator.
- Before installation, service or maintenance verify that the actuator is not pressurised, disconnect the air lines and make sure that the
air ports are vented
- Do not remove the end caps while the actuator is installed in the line, or while the actuator is under pressure.
- Do not disassemble the caps end spring cartridge, this operation should be done by ACTUATECH trained personnel only, this operation
could cause personal injury.
- Before mounting the actuator onto the valve make sure that the valve rotation is according with the actuator operating rotation, and the
upper shaft slot orientation is also correct.
- Before installing the actuated valve do cycling test for a wile to ensure the correct mechanical mounting and actuator/valve operations.
- The actuator installation shall be done according to and in observance with the local and national laws regulation.
- ACTUATECH S.p.A. can not be responsible for any damage to people, animals or things due to an improper use of the pro-
duct.
5. INSTALLATION INSTRUCTION
The principle of the actuator application is to open and close the connected part turn valve installed in a plant, without the manual
operation, by remote control by means of an electric-pneumatic connection.
The normal sizing of actuators requires a 20%-30% safety margin over the valve breakaway torque to handle valves. Plant design,
chemical and physical ow characteristics and environmental condition could increase the safety factor to apply to actuator sizing.
To lift the actuator using the right belts, see drawing below.
Before performing any installation operation, verify the actuator and valve conditions according to the safety notice above described.
Moreover, the utmost clearness is required during valve installation of the air supply connection to the actuator. All the connection
parts such as reductions, joints, plates, brackets and equipment must be clean and dirty free.
Before assembling the actuator on to the valve make sure that both items are correctly oriented, depending upon which direction of
rotation is required.
- Before starting the actuator installation, should be done a visual actuator control to verify its physical condition after transportation
and storage.
- Control trough the shaft slot or caps the actuator position
- Read carefully the ACTUATECH instruction sheet included in the cardboard box
- Read the actuator limits and performances marked on the actuator body to verify its suitability
- Remove the protection label stickers from the ports
- Before tting the actuator on the valve, clean the valve and the actuator from the dust and dirt.
- Verify the valve position, close or open, and the rotation direction.
- Verify the actuator position and rotation according with the valve requirement and operation, especially for Spring Return installation
Fail to Close or Fail to Open.
- Spring Return Fail to Close actuators are always supplied in the close position.
- While Spring Return Fail to Open are always supplied in the open position.

EN - 9
ITENDEFRES
ACTUATECH S.p.A
Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy • Ph. [phone] • Fax [phone] • actuatec[email protected]om • www.actuatech.com
Rif. MAN80937 - 03/22
INSTRUCTION MANUAL
SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR
GD2880 - GD8000 AND GS1440 - GS4000
Valve/Actuator assembly:
A) Direct mounting.
Valve actuator Direct mounting is the best solution to avoid plays between valve stem and actuator drive shaft. For a direct mounting
you should have the same standard ange connection on valve and actuator as well as the valve stem dimensions that t perfectly
with the actuator drive. Before installation please verify that the actuator and valve ange ISO connections are the same size; verify
that the valve stem size and shape is suitable for direct mounting, if necessary, use a drive reduction.
Fit the valve stem into the actuator drive shaft connection, and bolt together the two ISO anges.
B) Mounting plate connection.
In case direct mounting is not possible cause of little differences in actuator/valve anges or drives sizes, mounting plates adapters
with suitable anges dimensions allows an easy connection living a sufcient space for the valve/actuator drive adapter.
C) Bracket & Joint connection.
Wherever for technical reason the plant installation requires a distance between actuator and valve, or the valve ange and/or stem
are not standard, and in any case, where the valve/actuator connection could not be possible, a bracket and joint is the right answer.
The Bracket is a steel bridge that allows to connect the valve with is own ange connection in one side and with the suitable actuator
connection onto the opposite side, living a space in between for a steel joint connection. The joint allows a drive connection between
the actuator and the valve stem indispensable in case of stem key drive and at head.
Chose the suitable ange bracket and the required joint connections to x the actuator onto the valve very tight without any plays.
ACTUATECH actuator with its draining channels system on the ange connection pattern is especially designed for valve
direct mounting. This system allows to drop away any possible ow coming from the valve stem that with valve/actuator
direct mounting could damage the actuator.
Screw torque wrench setting
Stroke adjustment
Both actuator versions Double acting and Spring return, are provided as standard with 10° stroke adjustment.
For stroke adjustment instruction see table below:
Size Torque Nm
M10 45-50
M12 80-85
M14 125-135
M16 190-200
M20 370-390
Actuator type Stroke adjustment instruction sheet
GD2880 8_0827
GD3840
8_0826GD5760
GD8000
GS1440 8_0830
GS1920
8_0829GS2880
GS4000

EN - 10
ITENDEFRES
ACTUATECH S.p.A
Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy • Ph. [phone] • Fax [phone] • actuatec[email protected]om • www.actuatech.com
Rif. MAN80937 - 03/22
INSTRUCTION MANUAL
SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR
GD2880 - GD8000 AND GS1440 - GS4000
6. MATERIALS AND THEIR DURABILITY
Life time 20 years or number of cycles as per EN15714-3 2009 (see table below).
(a)* Based on EN ISO 5211.
(b)* One cycle consists of nominal 90° angular travel in both directions (i.e. 90° to open + 90° to close). For angular travel other than
90°, the endurance shall be agreed between the purchaser and the manufacturer/supplier.
(c)* For thermoplastic actuators the minimum number of cycles shall be 250 000.
Should it be necessary to replace its pistons sealing, these operations must be done by ACTUATECH trained people with proper
tools, we recommend returning the actuator to ACTUATECH where the actuator will be overhauled and than tested for a correct
replacement.
On request ACTUATECH will be willing to provide its sealing Kits.
WARNING: ACTUATECH declines any responsibility for the products repaired by third parties.
Material list
For components and material lists see table below:
Nominal torque (a)* Nm Piston or vane actuator Minimum
number of cycles (b)*
Maximum stroking time for testing,
based on 0-90° s
≤125 500 000 (c)* 3
≤1 000 500 000 5
≤2 000 250 000 8
≤8 000 100 000 15
≤32 000 25 000 20
≤63 000 10 000 30
≤125 000 5 000 45
≤250 000 2 500 60
Actuator type Components and material list sheet
GD2880 1_1861
GD3840 1_1922 (90° Rotation Version 1_1781)
GD5760 1_1862
GD8000 1_1915
GS1440 1_1863
GS1920 1_1922 (90° Rotation Version 1_1781)
GS2880 1_1864
GS4000 1_1916

EN - 11
ITENDEFRES
ACTUATECH S.p.A
Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy • Ph. [phone] • Fax [phone] • actuatec[email protected]om • www.actuatech.com
Rif. MAN80937 - 03/22
INSTRUCTION MANUAL
SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR
GD2880 - GD8000 AND GS1440 - GS4000
7. MAINTENANCE
The ACTUATECH S.p.A actuator, when installed and used properly, does not require maintenance, under normal use, as it’s provided
with sufcient lubrication for standard duration.
Send the actuator directly to ACTUATECH S.p.A. for inspection or extraordinary maintenance
If the cap or piston seals need to be replaced, ACTUATECH S.p.A. can supply a kit containing spare parts.
WARNING: The seals must be replaced by qualied personnel and with the appropriate tools. ACTUATECH S.p.A. declines all re-
sponsibility for products that are repaired by third parties
REPLACING THE SEALS
Disassembly.
Actuator disassembly operation must do with the actuator free from any pneumatic and electric connection and dismounted from the
valve.
Verify that the actuator is air bag free, and the spring return actuator is completely in its springs rest position.
Check that the air port 2 and 4 are absolutely vented.
Use proper tools only.
A) Loosen the end cap screws (part N° 20) in cross sequence to remove the end caps (part n° 3), in case of force on the screws that
means that the actuator is still under air or spring action and the operation should be discontinued until the action is removed. The
end caps contain a sealing O-ring (part N° 19) on its seat that should be checked before replacement.
Caution. The Spring Return end caps cartridges (Parts N° 3 + 18+24+19+23+22+21) are a safety device, where the preloaded spring
is set to avoid the dangerous spring jumping. Do not release the screw (part N° 21) to remove the spring from its seat, this operation
must be done by ACTUATECH technician only.
B) Hold the actuator in the vice and rotate the drive shaft until the pistons (part N°2) are released form the scotch-yoke groves (part
N° 5), then slip off the pistons from the cylinder (part N° 1). Do not use compressed air to remove the pistons from the body, this
operation could cause personal injuries.

EN - 12
ITENDEFRES
ACTUATECH S.p.A
Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy • Ph. [phone] • Fax [phone] • actuatec[email protected]om • www.actuatech.com
Rif. MAN80937 - 03/22
INSTRUCTION MANUAL
SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR
GD2880 - GD8000 AND GS1440 - GS4000
C) The dynamic seal (part N° 10), O-ring (part N° 12) and supports (part N° 11) should be checked before replacement. Do not use
sharp tools to cut the dynamic seal and O-ring or remove the supports from the piston as this may cause furrows or marks.
D) When the components are disassembled, they should be properly cleaned, and wear checked prior to being greased and reas-
sembled. In case the sealing parts are too much worn out use new parts from the spare parts kit.
WARNING. Due to ACTUATECH scotch-yoke shaft blow-out security system the shaft disassembly operation must be carried out by
ACTUATECH technician only.
Assembly.
A) O-ring (part N° 12) and dynamic seal (part N° 10) shall be greased and mounted onto the piston seat using a proper conical tool
(see the drawing) that allows an easy and perfect slip-in of the items without any damages.
B) Push into its piston seats the P.T.F.E. supports (part N° 11).
C) Grease the pistons (part N° 2) on the replaced parts (parts N° 10+11+12), and the piston bearings (part N° 8).
D) Grease the internal cylinder surface (part N° 1).
E) Position the scotch-yoke shaft (part N° 5) in order to have the groves in position for the pistons insertion and the right shaft required
direction of rotation.
F) Insert the pistons (part N°2), using a proper conical tool (see the drawing), in the scotch-yoke grooves (part N° 5) and press simul-
taneously the two pistons inside of the cylinder (part N° 1). The ACTUATECH scotch-yoke system will avoid pistons misalignment.
Holding the actuator on a vice rotate the shaft to verify the shaft rotation direction and the easy movement.
G) Replace the sealing O-ring (part N° 19) on its caps seat (part N° 3) and grease it. Fit the end caps to the body screwing the screws
in cross (part N° 20).
N.B. For the screw torque wrench setting see pg. 9.

EN - 13
ITENDEFRES
ACTUATECH S.p.A
Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy • Ph. [phone] • Fax [phone] • actuatec[email protected]om • www.actuatech.com
Rif. MAN80937 - 03/22
INSTRUCTION MANUAL
SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR
GD2880 - GD8000 AND GS1440 - GS4000
Double Acting version assembly
Spring return version assembly

EN - 14
ITENDEFRES
ACTUATECH S.p.A
Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy • Ph. [phone] • Fax [phone] • actuatec[email protected]om • www.actuatech.com
Rif. MAN80937 - 03/22
INSTRUCTION MANUAL
SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR
GD2880 - GD8000 AND GS1440 - GS4000
8. ATEX SPECIFICATION
In conformance with the European Directive ATEX 2014/34 UE for the suitability of the equipment intended for the use in Potentially
Explosive Atmosphere, ACTUATECH declare the conformity of the scotch-yoke actuator of the above mentioned Atex directive in the
limits of its Classication and Zone Classication.
A) EQUIPMENT CLASSIFICATION:
• Equipment Group II Category 2
• Zone Classication: Suitable for Gas Zone 1, and Dust Zone 21.
• Type of protection: Ex h (with constructional safety ‘c’)
• Gas group IIC (IIB with coating thickness > 0,2mm)
• Dust group IIIC
• Temperature Class T6, T4, T3 (as per following table)
• EPL: Gb (for Gas), Db (Dust)
B) EQUIPMENT MARKING:
II 2G Ex h IIC T6..T3 Gb X
II 2D Ex h IIIC T85°C..T175°C Db X
Tech. le N. 18-80475-AC01
Whenever the actuator may be installed in the Potentially Explosive Atmosphere the operator before starting the installation must
observe the suitability of the equipment classication and special installation instruction included that follow the actuator. In case of
instruction missing or any doubts please call the ACTUATECH technical department.
C) EQUIPMENT TECHNICAL SPECIFICATION:
T max. Fluid and Max T. ambient Temperature class Max surface temperature
60°C T6 T85°C
80°C T4 T105°C
150°C T3 T175°C
Max operating pressure 8,4 bar (7 bar for GD8000)
Ambient temperature T6 -50 ≤ Ta ≤ 60°C
Ambient temperature T4 -20 ≤ Ta ≤ 80°C (Standard)
Ambient temperature T3 -20 ≤ Ta ≤ 150°C
Max working frequency 1 Hz
Materials All aluminium alloys used contain less than 7,5% magnesium
(Mg) by mass
Seals
NBR (Standard version)
FKM (High Temperature version)
FVMQ (Low Temperature version)

EN - 15
ITENDEFRES
ACTUATECH S.p.A
Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy • Ph. [phone] • Fax [phone] • actuatec[email protected]om • www.actuatech.com
Rif. MAN80937 - 03/22
INSTRUCTION MANUAL
SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR
GD2880 - GD8000 AND GS1440 - GS4000
9. ACTUATORS SPECIAL VERSIONS
ACTUATECH manufactures and supplies special actuators versions for specic actuator use and environmental.
a) External protections.
All the standard version could be supply with different external protection according with the plant ambient working condition (see
ACTUATECH catalogue or contact ACTUATECH commercial team).
b) Stainless Steel Actuators
For food and chemical plants ACTUATECH manufacture a Stainless-Steel version. The body and all the external part are made in
stainless steel.
The rotary system is the same Scotch-Yoke used for the standard actuators.
For the stainless-steel actuators performances please refers to the standard actuators data tables.
c) Simple Acting spring return Fail to Open.
Spring Return Fail to Open actuators are required when in case of the pressurised air or electrical power supply are off the valve
should be automatically opened.
In the fail to open actuators the pistons are inserted into the cylinder like the Double Acting version, and due to the spring force the
actuator is Normally Open.
ATTENTION. Nominal torque and torque performances in Spring return Fail to Open version, due to its construction, are different
from the Spring Return Fail to Close standard versions. For sizing and application please refer to ACTUATECH technical department.
10. STORAGE
The ACTUATECH actuator has been packaged to provide protection during shipment, however, it can be damaged in transport. Prior
to storage, inspect the actuator for shipping damage. Keep the actuators in their original packing box during storage.
It is recommended to keep the actuators in a clean and dry environment at temperatures between -10°C and +60°C until ready for
use.
The actuator has two air ports, which are closed by labels for prevent liquids or others material to entering in the actuator during
storage.
If the actuators are to be stored for a long period of time before installation, it is recommended to stroke them periodically to prevent
setting of the seals.
WARNING
Keep the actuator in its original box until the installation, and store it indoors, in dry and clean environment, at temperatures
between -10°C and +60°C to protect them from humidity and dust.

EN - 16
ITENDEFRES
ACTUATECH S.p.A
Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy • Ph. [phone] • Fax [phone] • actuatec[email protected]om • www.actuatech.com
Rif. MAN80937 - 03/22
INSTRUCTION MANUAL
SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR
GD2880 - GD8000 AND GS1440 - GS4000
11. TROUBLESHOOTING
POTENTIAL EFFECT OF FAILURE POTENTIAL CAUSE OF FAILURE SOLUTION
Loss or reduction of the supplied
torque
Lack of supply Verify that the actuator has been con-
nected to the pneumatic line correctly
Air supply not enough to produce
required torque
Verify that the supply pressure value cor-
responds to the functioning requirements
(see actuator data plate)
Air leakage from seals Verify that the screws are completely
tightened
Leaks from the stem upper or lower
seals
Stem O-ring seal damage
Contact ACTUATECH for repairDamages on the body
Shaft damaged
Leakage form cylinder caps Seals damaged Replace the seals
(see “Maintenance” chapter)
Leakage from the ports after
manoeuvre
Damaged piston seal Replace the piston seals
(see “Maintenance” chapter)
Damaged body cylinder Contact ACTUATECH for repair
Insufcient valve rotation
Increase of valve manoeuvre torque Verify the valve release torque and the
possibility to replace with a new one
Air supply not enough to produce
required torque Increase the air supply
Mechanical stop (if there) not duty
adjusted Adjust the stops by increasing the stroke
Wrong connection between the actuator
and the valve stem
Check the connection elements between
the valve and the actuator
12. DISPOSAL OF PRODUCTS AT THE END OF THEIR LIFE CYCLE
The ACTUATECH products are designed so that when they are at the end of their life cycle they can be completely disassembled,
separating the different materials for the proper disposal and/or recovery. All materials have been selected in order to ensure minimal
environmental impact, health and safety of personnel during their installation and maintenance, provided that, during use, they are
not contaminated by hazardous substances.
The personnel in charge of the product disposal/recovery, must be qualied and equipped with appropriate personal protective equi-
pment (PPE), according to the product size and the type of service for which the device was intended. The management of waste
generated during the installation, maintenance or due to the product disposal, is governed by the rules in force in the country where
the product is installed, in any case, the following are general guidelines:
- The metal components (aluminium/steel) can be restored as raw material;
- Seals/sealing elements (NBR, FPM, FVMQ...), as contaminated by uids from other materials and lubrication, must be disposed of.
- The packaging materials that come with the product, should be transferred to the differentiated collection system available in the
country.
13. DECLARATION OF CONFORMITY
The ACTUATECH S.p.A. actuators have been designed, manufactured and tested to meet the requirements of the following Europe-
an standards and are marked, where provided, with the relative CE conformity marking:
- 2006/42/EC Directive “Machinery”;
- 2014/34/EU Directive “Equipment and protective systems intended for use in potentially explosive atmospheres” (ATEX).
- Regulation (EC) No 1907/2006 and successive concerning the Registration, Evaluation, Authorization and Restriction
of Chemicals (REACH).