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  • Semi   >   Circular Gate Valve   
  • V21-D_Link Type
* Please use the inquiry phone or bulletin board for various product inquiries.

Fitting Standard ISO-F
Gate Size (mm) DN 200mm
Pressure Range 1.0xE-5 Pa to 1.2xE5 Pa(abs)
Helium Leak Rate External < 1.0xE-9 Pa*㎥/sec
Internal < 1.0xE-9 Pa*㎥/sec
Feed Through Welded Bellows Seal
Pneumatic Actuator Type Double Acting
Air Connection OD Ø4 One-Touch Type 
Air Pressure 0.5 MPa
(Tolerance level : 0.45 ~ 0.6 MPa)
Air Less Lock Open N/A
Close Lock
Life Cycles Mechanism 100,000
Bellows 500,000
O-Ring(Seal) 100,000
Lubrication 100,000
Temperature Valve Body ≤ 180°C
Gate(Seat) ≤ 180°C
Actuator ≤ 60°C
Lubrication Vacuum Inside PFPE Grease
Mechanism PFPE Grease
Materials Valve Body STS304
Gate(Seat) STS304, AL6061, 440C
Bonnet STS304
Shaft(Stem) STS304
Vacuum Seal FKM
Mechanism(Cylinder)  AL6061,STS304
Bellows AM350
Bellows End Piece STS304
Gate Seal FFKM
Bonnet Seal, Vacuum Seal FKM
Pneumatic Seal FKM
Surface Treatment Valve Body Bead Blasting
Gate(Seat) Bare
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