ACTUATECH GD2880 Buku Petunjuk - Halaman 9

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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 flange connection on valve and actuator as well as the valve stem dimensions that fit perfectly

with the actuator drive. Before installation please verify that the actuator and valve flange 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 flanges.

B) Mounting plate connection.

In case direct mounting is not possible cause of little differences in actuator/valve flanges or drives sizes, mounting plates adapters

with suitable flanges dimensions allows an easy connection living a sufficient 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 flange 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 flange 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 flat head.

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.

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:

Actuator type

ACTUATECH S.p.A

Via S. Lorenzo, 70, 25069 Villa Carcina (BS) Italy •

Rif. MAN80937 - 03/22

Size

M10

M12

M14

M16

M20

GD2880

GD3840

GD5760

GD8000

GS1440

GS1920

GS2880

GS4000

Ph.

+39 030 8908142 •

SCOTCH–YOKE PART TURN PNEUMATIC ACTUATOR

GD2880 - GD8000 AND GS1440 - GS4000

Stroke adjustment instruction sheet

Fax

+39 030 8908143 • [email protected] •

INSTRUCTION MANUAL

Torque Nm

45-50

80-85

125-135

190-200

370-390

8_0827

8_0826

8_0830

8_0829

www.actuatech.com

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