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Butterfly Valve

DK Butterfly Valve

Actuator:Steel Handle

Valve Body:Ductile Iron/GGG40/GGG50

Valve Disc:Stainless Steel CF8

Valve Stem:Carbon Steel

Valve Seat:EPDM(Soft Back)

Pin:Without Pin

Bolt:Stainless Steel SS201


Standard:PN10/16 150LB 5K/10K

Top Flange:ISO 5211

Size:4inch DN100






Wafer Butterfly Valve -LWBV-11 ,is a normal type of butterfly valve - Handle Type Cast Iron Valve Body

CF8 Disc Wafer Butterfly Valve.

  1. Cast iron Valve body and soft rubber seat are adopted with split design for easy maintenance and replacement.

  2. After maching of valve body, because of without lining rubber, to avoid the pressure deformation of the lining

      rubber.Small torque of butterfly valve. Easy to open and close.

  3.Valve stem and valve body are equipped with 4 oil proof bearing,which is benefical to stem support.the

the shaft from handle to the bottom of valve .let the valve can bear big pressure.

  4.After quenching and tempring process ,the pin material of butterfly valve has high strength and high corrosion 

resiatance ,and the connection is more safe and stable.

  5.A Non-Pin stem  adopts an anti-exit structure ,spring+U type card structure are used in the upper part of the 

stem,which can not only compensate for installation errors,but also prevent the stem from loosening.


1. Small and light, easy to disassemble and repair, and can be installed in any position.

2. The structure is simple and compact, the operating torque is small, and the 90-degree rotation opens quickly.

3. The flow characteristics tend to be straight, and the regulation performance is good.

4. The connection between the butterfly plate and the valve stem adopts a pinless structure, which overcomes possible internal leakage points.

5. The seal can be replaced, and the seal is reliable to achieve two-way sealing.

6. The butterfly plate can be sprayed with a coating layer, such as nylon or PTFE, according to user requirements.

7. The valve can be designed as flange connection and wafer connection.

8. The driving mode can be manual, electric or pneumatic.


LWBV-11 Wafer Type Butterfly Valve

Actuator:Steel Handle/Aluminum2002 2004 2007/Stamping Handle/Stainless Steel

Valve Body:Ductile Iron/GGG40/GGG50/WCB ASTM A216/Brass/Aluminum/Stainless Steel

Valve Disc:Ductile Iron GGG50/Aluminum-Bronze/Stainless SteelCF8 CF8M CF3M 2507 1.4529/WCB

Valve Stem:Carbon Steel/SS410 SS420 SS416 SS304 SS316 SS316L 

Valve Seat:EPDM/NBR/PTFE/Viton/Natural Rubber

Pin:With Pin/No Pin

Bolt:Stainless Steel SS201


Standard:PN10/16 150LB 5K/10K

Top Flange:ISO 5211

Size:4inch DN100, DN20-DN1200



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Factory Add.:

No.3 Xintai Road, Jinnan District, Tianjin, China.

Office Add.:

C12 Aliyun Jinnan District, Tianjin, China.

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