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ACTUATECH GD15 Instruction Manual
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ACTUATECH GD15 Instruction Manual

Scotch–yoke part turn pneumatic actuator
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INSTRUCTION MANUAL
SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR
GD15 - GD1920 AND GS15 - GS960
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. MAN80515 - 07/22

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Summary of Contents for ACTUATECH GD15

  • Page 1 INSTRUCTION MANUAL SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR GD15 - GD1920 AND GS15 - GS960 ACTUATECH S.p.A Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy • +39 030 8908142 • +39 030 8908143 • actuatech@actuatech.com • www.actuatech.com EN - Rif. MAN80515 - 07/22...
  • 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 will be free to change all the specifications and data included in this manual at any time, so as to improve the quality and the performance of its products.

  • 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 (e.g. screens, sheds or integral painting) e) Operating drive rotation The part turn actuator rotation angle is nominally 90°. ACTUATECH actuator provides a stroke of 92° rotation, from –1° to 91°, with standard stroke adjustment of –10°.
  • Page 5 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 GD15 - GD 1920 AND GS15 - GS960 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 GD15 - GD 1920 AND GS15 - GS960 Double Acting operation cycle (GD Type). Simple Acting Spring Return fail to close operation cycle (GS Type). ACTUATECH S.p.A Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy •...
  • Page 8 INSTRUCTION MANUAL SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR GD15 - GD 1920 AND GS15 - GS960 Important. Special Double Acting version for flow dosing and Spring Return fail to open actuators with different piston positions have different rotation to close and to open: please follow their special instructions.

  • Page 9: Safety Notice

    - 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 ope- ration could cause personal injury.
  • Page 10 INSTRUCTION MANUAL SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR GD15 - GD 1920 AND GS15 - GS960 - Before fitting 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.
  • Page 11 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 12 INSTRUCTION MANUAL SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR GD15 - GD 1920 AND GS15 - GS960 Type: GD (Valve open) Type: GS (Valve closed) Type: GS (Valve open) ACTUATECH S.p.A Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy • +39 030 8908142 •...
  • Page 13 - Tightly screw the cap nuts (part N° 18) with its sealing O-ring (part N° 24) on the end caps to hold the adjustment screws in desired position. - The actuator is now ready to operate correctly. ACTUATECH standard stroke adjustment is max 10° special longer screws are available on request. ACTUATECH S.p.A Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy •...
  • Page 14 - In this condition the actuator is ready to operate correctly. ACTUATECH standard stroke adjustment is max 10°, special longer screws are available on request. ACTUATECH S.p.A Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy •...
  • Page 15 In this condition the shaft is not stopped and the- oretically could be moved to the total closing position, adjustments of closing and opening cannot be performed both. ACTUATECH standard stroke adjustment is max 10°, special longer screws are available on request. ACTUATECH S.p.A Via S.
  • Page 16 INSTRUCTION MANUAL SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR GD15 - GD 1920 AND GS15 - GS960 This adjustment table represent the average drive variation angle α for each full turn of the adjustment screw β. For each 1° of drive variation α 1 the adjustment screw is to be rotate as β 1.
  • Page 17 (c)* For thermoplastic actuators the minimum number of cycles shall be 250 000. Should it be necessary to replace its pistons sealing, this operation must be done by ACTUATECH trained people with proper tools, we recommend to return the actuator to ACTUATECH where the actuator will be overhauled and than tested for a correct replace- ment.
  • Page 18 INSTRUCTION MANUAL SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR GD15 - GD 1920 AND GS15 - GS960 Actuator components and material list. POS. Denomination Materials Standards Cylinder Aluminium alloy EN AW 6063 Anodized Piston Aluminium alloy EN AB 46100 Aluminium alloy EN AB46100 Painted...

  • Page 19: Maintenance

    GD15 - GD 1920 AND GS15 - GS960 7. MAINTENANCE The ACTUATECH S.p.A. actuator, when installed and used properly, does not require maintenance, under normal use, as it’s provi- ded 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 20 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 21 INSTRUCTION MANUAL SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR GD15 - GD 1920 AND GS15 - GS960 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 22 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 23 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.
  • Page 24 45% of its capacity. WARNING. Double Acting GD and Spring Return GS special version develop different torque forces and before installation and main- tenance please consult ACTUATECH technical department for their technical data and torque diagrams. ACTUATECH S.p.A Via S.

  • Page 25: Troubleshooting

    GD15 - GD 1920 AND GS15 - GS960 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.

  • Page 26: Declaration Of Conformity

    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.
  • Page 27 U.K. Regulation S.I. 2008 No. 1597 (as amended)* *ACTUATECH S.p.A. declares that the products are in CONFORMITY with the essential safety requirements of the of the above-men- tioned Regulations, providing that declared performance and use/installation instructions are observed. ACTUATECH S.p.A Via S.

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