ANSI Standard PTFE Double Disc Butterfly Valve 6 Inch Wafer Type

Spark Test ANSI Standard Full Lined PTFE Wafer Type Butterfly Valve

Technical Specification

Design and Manufacture Standard: ASME B16.34, HG/T 3704

Face-to-face Dimension: ASME B16.10 , GB/T 12221

Flange Standard: ASME B 16.5 ,GB/T 9119 ,DIN ,JIS

Inspection and Testing: API 598, GB/T 13927

Product Specification
Body Material: WCB, ASTM A395 , CF8 ,CF8M

Lining Material: PTFE , PFA , PO ,FEP, EPDM

Nominal Diameter: 2"-80"(DN50~DN2000)

Pressure Range: Class150 , PN6 , PN10 , PN16

Connection Type: Flange ,Wafer , Lug Connection

Operation Method: Manual ,Worn gear ,Electric ,Pneumatic actuator

Products Decription:

1. The lined butterfly valves bi-directional flow is possible at maxmium operating pressure. Since the valve port corresponds to the piping diameter, a high flow capacity is guaranteed.

2. It features ease of maintenance, repeatable on-off, long life durability.

3. The concentric design is commonly used in the power generation, brewing, water and food industries and suitable for both gaseous and liquid service. Typically applied in chemical/petrochemical process, food and beverage, and pulp and paper etc.

4. Lining material: PTFE, PFA, FEP, GXPO etc.

5. Connection type: wafer, flange, lug etc.

6. Operation methods: manual, worm gear, electric, pneumatic and hydraulic actuator.

Blow-out proof design

 

Stem and disc are one simple part combined with the anti-blow-out system. (API 609 compliant.)

 

The extended body lining

 

assures optimum protection of the PTFE-rings from corrosive media.These components are located behind the body liner extension. They are

 

isolated from the media.

 

The revolutionary PTFE atmosphere seal

 

protects the top seal components and the shaft from atmospheric corrosion.

 

Triple PTFE-ring backup-seals

 

provide a second, third and fourth line of protection against atmospheric leakage.

 

The in-line resilient seal assembly

 

assures optimum pressure distribution of the body liner to the disc assembly, providing tight sealing under all operating conditions. The wider seal-

 

band provides a broader sealing area.

Fully lined bottom shaft

 

assures optimum corrosion resistance and eliminates a potential leakage path.