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  PRODUCT Butterfly Valves Metal Seat Type |
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 | DK-MT Series has been designed and developed the butterfly valve which is able to do as good working under low and high temperature , high vacuum condition though present butterfly valve is difficult to cope with the various condition. |
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| The Seat of the Double Metal Valve is used to the combined seat type such as Graphite, Non-Asbestos, PTFE with laminated stainless steel or solid metal type |
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| Longer Service life due to hard-to-wear seat ring |
| In the closed position, the seat ring guarantee complete sealing |
| Double Off-Set disc structure can provide the opened/closed valve with low torque |
| Easy replacement of the seat ring without removing the shaft due to off-set shaft design. |
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Design Code
- ASME B 16.34 , API 609 , JIS B 7480
Face to Face Dimensions
- ISO 5752 , ASME B 16.10 , API 609
Pressure Rating
-JIS 5K, PN6,
-CLASS 150
Product Size
-50mm(2”) ~ 1200mm(48”)
Flange Drilling
-JIS B 2238, 10K/16/20K
-ASME B 16.5& 16.47 CLASS 150/300
Operation
-LEVER/GEAR/MOTOR/PNEUMATIC ACT
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Body Type
-FULL LUG, WAFER, FLANGE
Test Inspection – API 598 / JIS B 2003
Applications
-Demi-Water, Chilled/Hot Water, Sea Water
-Formaldehyde Solution, Oxygen
-Exhaust Gas, Steam
-Mining, Iron Industries
Materials
-BODY : A216 WCB , A351 CF8/CF8M/CF3
-DISC : A351 CF8/CF8M/CF3
-SEAT : PTFE/RTFE/PEEK
-SHAFT : A276 T304/T316/T630
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| Two of the offsets apply to the location of the shaft in respect to the centerline of the bore and the centerline of the disc/seat sealing surface. |
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| The third offset in the design is the axis of the eccentric seat cone angle that is inclined from the centerline of the valve bore to minimize rubbing between seat and disc during operation and to preserve sealing integrity over the cycle life of the valve. |
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| A gasket prevents leakage around the seal ring. |
| The characteristic of DK-3MT Series are easy to replace seat. |
| The precision machined seat and disc provide long service life, lower operation torque. |
| The torque seated resilient body surface are hard faced welding , such as Stellite welding. |
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Design Code
- ASME B 16.34 , API 609 , API 607
Face to Face Dimensions
- ASME B 16.10 , API 609
Pressure Rating
-CLASS 150/300
Product Size
-50mm(2”) ~ 1200mm(48”)
Flange Drilling
-ASME B 16.5& 16.47 CLASS 150/300
Operation
-LEVER/GEAR/MOTOR/PNEUMATIC ACT
Body Type
-FULL LUG, WAFER, FLANGE
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Test Inspection – API 598
Applications
-Hot Steam
-High Temperature
-Boiler, Oil Refining
-Petrochemical Process
-Power Generating Plant
Materials
-BODY : A216 WCB, A351 CF8/CF8M/CF3
-DISC : A351 CF8/CF8M/CF3
-SEAT : Laminated Seat with Graphite/Non-asbestos,
-SHAFT : A276 T304/T316/T630, Monel etc.
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