Sales department: 1458 Longming Road, Minhang District, Shanghai
99 to 502
Hotline ：021-54148000
Factory address: Guangfu Road, Zhongxing Town, Chongming, Shanghai
No. 107
The phone：021-64787250
F a x：021-54856901
Contact: Mr. Lu / 13901688843 / 13901688843
E-mail: 529772165 @qq.com
Website: www.guangda-valve.com
Valve3
Valve, due to the different structure, the function category division is very complex, including gate valve, globe valve, throttle valve, butterfly valve, plug valves, ball valves, electric valve, diaphragm valve, check valve, safety valve, relief valve, steam trap, emergency shut-off valve, such as dozens of, the more commonly used include gate valves, globe valves, butterfly valves, ball valve, check valve, diaphragm valve.
Gate valves
Gate valve refers to the valve plate driven by the stem, along the sealing surface of the seat for lifting movement of the valve, can be connected or cut off the flow of the channel. Gate valve sealing performance is good, fluid resistance is small, open and close save effort, with a certain regulation performance, is the most commonly used to cut off one of the valves according to the threaded position of gate valve stem divided into two types of stem and dark stem.
Globe valve
Globe valve is a downward closed valve, disc driven by the stem along the valve seat sealing surface axis movement of the valve. Compared with gate valve, its regulating performance is good, sealing performance is poor, the structure is simple, manufacture and maintenance is convenient, fluid resistance is big, the price is cheap, it is a kind of commonly used cut off valve, generally used for medium, small caliber pipe.
Ball valve
The opening and closing part of the ball valve is a ball with a round through hole, which rotates with the stem to achieve the opening and closing of the valve. The ball valve is simple in structure, quick in switch, convenient in operation, small in size, light in weight, few parts, small in fluid resistance, good in sealing and convenient in maintenance.
Butterfly valve
Butterfly valve is the butterfly plate in the valve body around the fixed axis rotation 90° can complete the opening and closing role of the valve, small volume, light weight, simple structure, composed of only a few parts, with better flow control characteristics. Butterfly valve is divided into two kinds of seal: elastic soft seal and metal hard seal. Resilient seal valve, seal ring can be embedded in the body or attached to the disc periphery, good sealing performance, can be used for throttling, can be used in medium vacuum pipeline and corrosive
