The disc, whose direction of motion is vertical to flow`s direction,is the opening and closing part of Gate Valve.The gate valve can only act as full-open and full-close adjustable switch not for throttling.
The gate valve can be divided into rising stem gate valve and non-rising stem gate valve according to its rod`s position;divided into manual type, electric type and pneumatic type according to its drive form;and divided into Soft-sealing Gate Valve and Metal-Sealing Gate Valve according to its sealing surface type.
The gate valve,Gongyi Liangda Tubes Co., LTD made, covers soft-sealing gate valve,metal-sealing gate valves, rising stem soft-sealing gate valve,non- rising stem metal-sealing gate valves, manual soft-sealing gate valve,soft-sealing gate valve with electric actuator, soft-sealing gate valve with pneumatic actuator, soft-sealing gate valve, flange soft-sealing gate valve, socket soft- sealing gate valves, etc.
Encryption soft-sealing gate valve,can be divided into special spanner type, locked type and hidden locked type . Encryption soft-sealing gate valve is mainly used to prevent the valves operating without being authorized.
Buried soft-sealing gate valve, a new type of valve to popularize widely,whose design condition is to meet no leakage and no maintain and its service life up to 30 years,is low cost for its burying directly underneath instead of excavating valve chamber as usual,and is secure for a small special valve handle set to avoid being casual operated and avoid potential traffic troubles.
The production,Gongyi Liangda Tubes Co., LTD made, whose materials gives priority to ductile cast iron and also to cast iron, cast steel. Gongyi Liangda Tubes Co., LTD `s production accord with GB/DIN/ANSI/BS/JIS/EN and other national standards based on customers requirements. And each of its product has been tested to guarantee perfect quality before the production leave the factory.