product overview

Butterfly valves use butterfly plates that rotate together with the valve stem as opening and closing components to achieve valve opening, closing, and adjustment. Lined butterfly valve is an ideal product for gas, liquid, and semi fluid pipelines and containers in chemical, petroleum, pharmaceutical, food, steel smelting, papermaking, hydropower and other systems. It is lined with thick polymer materials using lining technology on overcurrent components, valve bodies, butterfly plates, and valve stems, with excellent anti-corrosion performance. It can be applied to any concentration of acid, alkali, salt, oxidant, reducing agent, organic solvent and other media, and can replace gate valves, globe valves and other types of cut-off and regulating valves.

Structural features:

① Small size, light weight, easy operation, convenient installation and maintenance.
② Excellent and reliable sealing performance, zero leakage, and long service life.
③ The flow characteristics tend towards a straight line, and the regulation performance is optimal.
④ Simple structure, quick switch, 90 ° rotation for opening and closing.
⑤ Can replace various valves such as gate valves, globe valves, plug valves, hose valves, and diaphragm valves.
⑥ Pneumatic and electric devices can be configured according to user requirements to meet the needs of remote control and program control.
⑦ Replacing the lining material of the parts can be applied to various media.

Execution standards:

① Design and Manufacturing: Q/ZXD 03-1999 GB/T12238-89 API 609 MSS JIS SP-67 standard.
② Flange size:
PN=1.0MPa according to JB/T82.1-94 (original standard JB82-59) "Convex Welding Steel Pipe Flanges".
PN=1.6MPa according to GB9113.3-88 "Convex Integral Steel Pipe Flanges".
PN=2.5MPa according to GB9113.4-88 "Convex Integral Steel Pipe Flanges".
③ The structural length shall be in accordance with GB12221-89 "Structural Length of Flanged Metal Valves".
④ Inspection and testing shall be conducted in accordance with GB/T13927-92 "General Valve Pressure Test".

Driving mode:

Manual, worm gear worm, pneumatic, electric

Manual, worm gear driven "A" type clamp connection plastic lined butterfly valve (centerline):