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Electro-Pneumatic Positioner   YT-1000L  Installation manual 

 

Installation

  

Safety Warning  

When installing positioner, 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  

 Hexagonal 

wrench 

 

  Screw drivers (+) & (-)  

  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.   

  YT-1000L main body  

  Feedback lever and lever spring  

  Flange nut (bottom side of YT-1000L)  

  4 pcs. of hexagon head bolts (M8 X 1.25P)  

  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.   

   

 Feedback lever should be leveled at 50% of valve stroke.  (Refer to Step 7)  

   

 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>

  

 

Young Tech Co.  #662-8 PumgMu Dong, Kimpo City, (415-809) Korea  (031) 986-4935   www.ytc.co.kr

 

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