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4-6

Operation of valve 

  Please  confirm  in  regulated  difference  pressure  it  and  do  the  opening  and  shutting 

operation when you open and shut the valve. 

(1) Opened condition of gate 

When the gate  is fully  opened,  the  indicator  light  of the  auto  switch  at  opening  side  is 

lighting on. 

(2) Closed condition of gate 

   

When  the  gate  is  fully  closed,  the  indicator  light  of  the  auto  switch  at  closing  side  is 

lighting on. 

 

 

(3) Please don

’t put your hands etc. into the slit on body carelessly.   

When valve starts its operation, the gate may cut off fingers etc. 

(4) Please 

don’t remove the side plates on actuating part. 

Touching moving part with hands during operation may cause injury. 

(5) Please exhaust all pressure in cylinder with disconnecting air piping on operating part 

at valve maintenance. 

         

 

4-7

Replacement of O-ring 

Use the parts designated on 

“5. Replacement parts list” when replacing O-rings for a bonnet 

assembly, gate and body. Give sufficient cleaning to O-ring groove and mount O-ring in it so 
that it will not twist. Use a plastic specific tool so as not to damage sealing faces of the O-ring 
groove. 

After replacement, perform leak check. 

 

 

4-8

Treatment of used product 

If  returning  the  product  which  has  used  a  fluid  which  is  harmful  to  human  body  or  have 

attachment of harmful material, be sure to clean and perform treatment which eliminates harm 
in advance. 

 

Danger 

Warning 

Warning 

Summary of Contents for XGT312-50336 Series

Page 1: ...Doc no GV OMH0003 C PRODUCT NAME High Vacuum Slit Valve MODEL Series Product Number XGT312 50336 XGT313 50336 B...

Page 2: ...nstructions 2 to 3 1 Specifications 4 2 How to order 5 3 Construction Operation 6 to 8 4 Precautions 9 to 10 5 Replacement Part List 11 6 Maintenance 12 7 Troubleshooting 12 Attachment Procedure for M...

Page 3: ...ipment failure when configuring the equipment 2 Only personnel with appropriate training should operate machinery and equipment The product specified here may become unsafe if handled incorrectly The...

Page 4: ...lure of the product 3 Prior to using SMC products please read and understand the warranty terms and disclaimers noted in the specified catalog for the particular products 2 Vacuum pads are excluded fr...

Page 5: ...O C 5 to 150 for gate 5 to 60 for moving part Operating fluid Inertia vacuum Operating times s 0 6 to 1 2 Position detection Auto switch D A93 Main materials for vacuum part Seal material FKM Material...

Page 6: ...f MESC Cassette The number of axes and sealing type 1 axes and bellows Valve size 3 for 300mm wafer Model of high vacuum slit valve Auto switch and connector Symbol Auto switch Connector NIL Not provi...

Page 7: ...6 3 Construction Operation 3 1 Construction...

Page 8: ...y an O ring 3 2 2 Closing gate Figure 2A to Figure 2B The roller block integrated with the piston rod moves up when pressure is applied to CLOSE side of pressure piping in other words pressure is exha...

Page 9: ...ght around the roller bearing A whose position is fixed by the fulcrum groove and the gate stops clamping At this time the roller bearing B held to the lever and the plate 27 held to the roller block...

Page 10: ...ocking valve with no operating pressure applied first apply pressure to operating port which can remain the gate at open or close position as the gate is at the moment and then release end lock and sw...

Page 11: ...ating part Touching moving part with hands during operation may cause injury 5 Please exhaust all pressure in cylinder with disconnecting air piping on operating part at valve maintenance 4 7 Replacem...

Page 12: ...336 C XGT311 50336A1 1F For XGT31 50336 F Gate ASSY XGT300 2 1S Body O ring FKM XGT300 9 10S AS568 273 Gate O ring FKM XGT300 9 9S For XGT31 50336 1 AS568 271 Kalrez 4079 XGT300 9 11S For XGT31 50336...

Page 13: ...eplace bonnet ASSY External leakage Breakage of bellows Replace bellows O ring deterioration caused by process Replace it to the O ring with appropriate material Flaws on seat surface Polish seat surf...

Page 14: ...13 C...

Page 15: ...14...

Page 16: ...15...

Page 17: ...ember 2021 4 14 1 Sotokanda Chiyoda ku Tokyo 101 0021 JAPAN Tel 81 3 5207 8249 Fax 81 3 5298 5362 URL http www smcworld com Note Specifications are subject to change without prior notice and any oblig...

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