Electro-Pneumatic Positioners YT-1000L Series
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Installation
Safety Warning
When installing positioner, please ensure to read and follow safety instruction.
z
All input and supply pressure to valve, actuator, and other related devices must be
turned off.
z
Use bypass valve or other equipment to avoid entire system "shut down."
z
Make sure there is no remaining pressure in the actuator.
Tools for installation
①
Hexagonal wrench
②
Screw drivers (+) & (-)
③
Spanners for hexagonal-head bolts
YT-1000L installation
YT-1000L 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-1000L main body
②
Feedback lever and lever spring
③
Flange nut (bottom side of YT-1000L)
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 positioner on the actuator yoke.
Please consider following when making a bracket.
①
Feedback lever should be leveled at 50% of valve stroke. (Refer to Step 7)
②
Feedback lever connection bar of actuator clamp should be installed at the
position that the valve stroke and numbers which indicated on the feedback
lever
must be fitted. (Refer to Step 8)
(2) Attach YT-1000L to the bracket, which was
produced in earlier step, by using bolts.
<Figure 2> Please refer to backside of the
product for size of bolts. The standard size
of bolt is M8 X 1.25P, and other bolt sizes are
available. Please contact YTC sales department.
<Figure 2>
