Ytc YT-1000L, Руководство по эксплуатации продукта

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YT-1000/1050 series
3. Installation
3.1 Safety
When installing a positioner, please ensure to read and follow safety instructions.

Any input or supply pressures to valve, actuator, and / or to other related devices must
be turned off.

Use bypass valve or other supportive equipment to avoid entire system “shut down”.

Ensure there is no remaining pressure in the actuator.
3.2 YT-1000/1050L Installation
YT-1000/1050L should be installed on linear motion valves such as globe or gate type which
uses spring return type diaphragm or piston actuators. Before proceeding with the
installation, ensure following components are available.

Positioner unit

Feedback lever and lever spring

Flange nut (bottom side of YT-1000/1050L)

4 pcs x hexagonal headed bolts (M8 x 1.25P)

4 pcs x M8 plate washer
3.2.1 Installation Steps
1. Proper bracket must be made in order to adapt the positioner on the actuator yoke.
Please consider following important points when a bracket is being designed.

Positioner’s feedback lever must be parallel to the ground at 50% of the valve stroke.

Feedback lever connection with the pin of the actuator clamp should be installed in
such a way that the valve stroke length coincides with the corresponding figure in
“mm” marked on the feedback lever. Improper setting may cause poor linearity and
may create unnecessary hunting during the operation.
2. Assemble the positioner with the bracket made in
previous step by fastening the bolts. Please refer to the
backside of the positioner for size of the bolts. The
standard bolt size is M8 x 1.25P. Please contact Young
Tech Co., Ltd for other bolt sizes.
3. Attach the positioner with bracket to the actuator yoke – DO NOT
TIGHTEN POSITIONER COMPLETELY.
4. Connect positioner’s feedback lever to the actuator clamp. The
hole gap on the feedback lever is 6.5mm. The connection pin’s
outer diameter should be less than 6.3mm.