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Gear operated wafer Type Butterfly Valve with Rubber Lining

butterfly valve( flanged,wafer )

The manual and wafer type butterfly valves with rubber lining have the following features:

1. The drive method can be manual, electric or pneumatic;

2. The flow characteristic is prone to a straight line, providing good regulating performance;

3. The sealing components can be replaced, and reliable double direction sealing can be achieved;

4. The valves are small and light, easy to be dismantled and repaired, and can be installed at any position;

5. The valves have simple and compact structure and small operation torque, and quickly open for 90° rotation;

6. The butterfly plates can be coated according to the requirements of the customers, e.g. nylon or PTFE;

7. The connection between the butterfly plates and the valve rods is done without pins, preventing possible inner leakage points;

8. The outer circle of the butterfly plates is spherical type, improving the sealing performance and increasing the service life of the valves; the leakage rate is still zero after more than 50,000 times’ opening and closing;

9. Design and manufacture: GB12238; structural length: GB12221 (13 series); flange connecting size: GB4216 D41J butterfly valves semi-lined with rubber

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Product Detail

Design standards

Design manufacture as per:GB/T 12238、API 609

Face-to-Face:GB/T 12221、ASME B16.10

End flange:GB/T 9113、JB/T 79、HG/T 20592、ASME B16.5
Inspection and testing:GB/T 13927 API 598

Performance Specification
Nominal pressure:PN0.6、1.0、1.6Mpa、Class 150
Shell test pressure:PT0.9、1.5/2.4/3.0Mpa 
Low-pressure dosure test:0.6MPa 
Suitable medium:water,oil,gas,products,nitric 
Suitable temperature:-20°C~80°C

Product Structure

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