Main Features: The turning center of the butterfly plate is on the center line of the valve body and the sealing face section of the butterfly plate. In closing, the ex-circle sealing face of the butterfly plate will extrude the valve seat made of synthetic rubber, generating elastic deformation...
Top flange: ISO 5211
Size: 2" - 48" ( DN50 - DN1200)
Suitable Temperature: -26℃ - 82℃
Pressure Rating: ANSI Class 125 - Class 300 PN2.5 - PN40
Operation Type: Lever, Gear, Electric, Pneumatic, Hydraulic
Seal Material: EPDM, NBR, PTFE,RPTFE, VITON, etc
Body Materials: Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel.
1. Design and manufacture: API609
2. Test and inspection: API598
3. Face to face dimensions: API609, ANSI B16.10
4. End flange dimensions: ANSI B16.5, B16.47 SERIES A & SERIES B, DIN, BS, JIS
5. Butt-welding end: ANSI B16.25
1. Structure simple is compact, stable positioning, and the weight is light.
2. Designs reasonably, the assembling and dismantling and installation is easy, to be advantageous.
3. Minimized operating torque. Lever, gear, pneumatic and electric actuators can be chosen.
4. Rubber backed seat with stable valve torque. No leakage under the rated pressure.
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