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"GD" DOUBLE ACTING VERSION
"GS" SPRING RETURN VERSION
INSTRUCTION MANUAL
SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR
GD2880 - GD8000 AND GS1440 - GS4000
ACTUATECH S.p.A
Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy •
Ph.
+39 030 8908142 •
Fax
+39 030 8908143 • actuatech@actuatech.com •
www.actuatech.com
1
EN -
Rif. MAN80937 - 03/22
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Summary of Contents for ACTUATECH GD2880
- Page 1 “GD” DOUBLE ACTING VERSION “GS” SPRING RETURN VERSION INSTRUCTION MANUAL SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR GD2880 - GD8000 AND GS1440 - GS4000 ACTUATECH S.p.A Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy • +39 030 8908142 • +39 030 8908143 • actuatech@actuatech.com •...
- Page 2 Environmentally friendly: under the green leaf icon you can find 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.
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Page 3: General Features
- 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. - Page 4 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.
- Page 5 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 classification 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.
- Page 6 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.
- Page 7 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.
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Page 8: Safety Notice
- 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. - Page 9 Chose the suitable flange bracket and the required joint connections to fix the actuator onto the valve very tight without any plays. ACTUATECH actuator with its draining channels system on the flange connection pattern is especially designed for valve direct mounting. This system allows to drop away any possible flow coming from the valve stem that with valve/actuator direct mounting could damage the actuator.
- Page 10 (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.
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Page 11: Maintenance
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 sufficient 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. - Page 12 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.
- Page 13 INSTRUCTION MANUAL SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR GD2880 - GD8000 AND GS1440 - GS4000 Double Acting version assembly Spring return version assembly ACTUATECH S.p.A Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy • +39 030 8908142 • +39 030 8908143 • actuatech@actuatech.com •...
- Page 14 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 Classification and Zone Classification.
- Page 15 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.
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Page 16: Troubleshooting
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.
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