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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  CF-F
Gate Size (mm) DN 200mm
Pressure Range 1.0xE-8 Pa to 1.6xE5 Pa(abs)
Helium Leak Rate External < 5.0xE-11 Pa*㎥/sec
Internal < 1.0xE-10 Pa*㎥/sec
Feed Through Welded Bellows Seal
Pneumatic Actuator Type Double acting with 3-position actuator 
Air Connection Actuator OD Ø 3.2 Speed Controller (Meter-out)
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 ≤ 250°C (Open) / ≤ 200°C (Closed)
Actuator ≤ 200°C
Position indicator ≤ 70°C
Lubrication PFPE Grease
Materials Valve Body STS304
Gate(Seat) STS304
Bonnet STS304
Shaft(Stem) STS304
Mechanism(Cylinder)  AL6061 
Bellows STS316L
Bellows End Piece STS304
Gate Seal FKM
Pneumatic Seal FKM
Surface Treatment Valve Body Bead Blasting
Gate(Seat) Bare
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