concentric butterfly valve with PTFE lined and stainless steel disc
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concentric butterfly valve with PTFE lined and stainless steel disc

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concentric butterfly valve with PTFE lined and stainless steel disc

Size: DN50 to DN600 (2" to 24"),
Pressure rating: PN10/16/25 (ANSI Class 150LBS).
Valve manufactured to API609 and EN593.

We have replaceable seat and unreplace seat type for different customer.
For replaceable seat type, the seat can be easily moved from the body, and no need to damage any components at all.
For unreplaceable seat type, the rubber seat is fussioned on the body directly and no possible to move at all, so this type will have better torque and suitable for dead end service.

Our concentric butterfly valve can have different connecting type: Wafer (semi lug), lug and double flange ends.
For the connecting of disc and shaft, we use special key instead of pin to drive the disc, so the shaft will be free from the medium and the valves will be more safety for some corrosion medium. Valve can be operated by level, gear box with manual handwheel, electrical or pneumatic actuators for automation purpose.

Valve materials:
Body: GG25, A126 Class B, GGG40, WCB.
Disc material: CF8, CF8M, 1.4410, 1.4529. Hasstelloy-C, aluminum bronze....
Seat: PTFE or EPDM available....



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