Installation
Safety Warning
When installing a positioned, please ensure to read and follow safety instruction.
All input and supply pressure to valve, actuator, and other related devices must be turned
off.
Use bypass valve or other equipment to avoid entire system “shut down.”
Make sure there is no remaining pressure in the actuator.
Tools for Installation
① Hexagonal wrench
② Screw Drivers (+) and (-)
③ Spanners for hexagonal-head bolts
YT-1200 Installation
YT-1200L should be installed on linear motion valve such as globe valve or gate valve using
spring return type diaphragm or piston actuator. Before installation, be sure to check for
following installation components.
① YT-1200L main body
② Feedback lever and lever spring
③ Flange nut (bottom side of YT-1200L)
④ 4 pcs of hexagon head bolts (M8 x 1.25P)
⑤ 4 pcs of M8 plate washer
Installation Steps
1. Proper bracket must be made in order to attach positioned on the actuator yoke. Please
consider following when making a bracket.
A. Feedback lever should be leveled at 50% of the valve stroke. (refer to step G)
B. Feedback lever connection bar of the actuator damp should be installed at the
positioned that the valve stroke and numbers which indicated on the feedback lever
must be fitted. (refer to step H)
2. Attached YT-1200L to the bracket, which was produced in
previous step, by using bolts. <Fig 1> Please refer to
backside of the unit for size of the bolts. The standard
size of bolt is M8 x 1.25P and other bolts sizes are
available. Please contact YTC sales department.
3. Attach YT-1200L (with bracket) to the actuator yoke – DO
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