Origin	China
Model Number	dy0906001
Brand Name	Shangyu
Material	Stainless Steel
Media	Oil
Power	Hydraulic
Pressure	Medium Pressure
Standard or Nonstandard	Standard
Structure	Butterfly
Temperature of Media	Medium Temperature

Notice for installation and usage of telescopic butterfly valve

1��elescopic butterfly valve should be placed horizontally,any collision will be not allowed.

2��hen telescopic butterfly valve left factory,its structure length is the minimum length,when installation should be pulled to installation length (Design length).

3��hen length between pipes exceed telescopic valve installation length,please adjust the space between pipes,shouldnt pull telescopic valve constrainedly,lest damage telescopic valve.

4��elescopic butterfly valve can be installed in optional position,when it copmpensate temperature,after install pipe,it should be installed brackets on both sides of pipe axes direction,in order to prevent telescopic tube of telescopic valve from pulling out (see diagram1),accumulate supporting force of brackdt should be according to formula as below,and shouldnt unload bracket when deivery.

F> 剋 /4PS ? DN 2 ?(kgf)

Test:PS-pipe pressure test,DN-Diameter of pipe

5��hen telescopic butterfly valve doesnt treat as temperature compensation,only treat as install,exchange,and maintain valve conveniently,and it can use screw to retain,and clamp telescopic butterfly valve symmetricallly,so as to avoid telescopic tube being pulled out(see diagram2),and damage telescopic tutterfly valve and pipe fitting or costruction,Diameter of bolt can according to diameter of flange bolt,accumulate bolt intensity and bearing pressure test and pull of pipe according to above formula,when operation,retaining screw should not be unloaded (mate in addition).

6��n pipe constructive spot where remove or disassembly telescopic butterfly bvalve will be not allowed.

7��his kind of telescopic butterfly valve has beem machining and fitting strictly,dont pull and press it from time to time optionally on spot.When install pipe,Both pipe ends of telescopic valve should be homocentric,both facing flanges should be horizontal.

8��ixed bolt on flange should be symmetrical and clamped,shouldnt clamp fixed bolt of flange on single side.

9��elescopic tube should be installed behing of valve.

10��elescopic part of telescopic valve shouldnt be installed on corner of pipe or end of pipe