Ball valve takes ball with circular hole as opening and closing element. The ball is driven by valve stem to rotate 90°around valve stem to perform opening and closing. The valve is used to cut off or switch on the medium within pipeline, and widely used in petroleum refining, long-distance transportation pipeline, chemical, paper making, pharmaceutical, water conservancy, electric power, municipal and steel, etc. Special consideration is made to strength, safety, resistance to harsh environment during design. It's suitable for various corrosive and non-corrosive mediums. Different materials may be selected for transportation of water, steam, oil, natural gas, nitric acid, acetic acid, oxidant and urea. Ball valve has compact structure and reliable sealing. Its sealing surface and spherical surface are closed normally which make it resistant to flush erosion by the medium, and easy to operate and repair.
Check valve is also known as one-way valve or non-return valve. It's a kind of valve with opening and closing part opens and closes automatically driven by flow and force of medium to prevent backflow of medium. Check valve is automatic valve, and mainly applied on pipeline with medium flows in one direction. The medium is allowed to flow only in one direction to prevent accident.We mainly manufacture four types of check valve: swing check valve, lifting check valve, tilting disc check valve and wafer check valve.
Butterfly valve is a kind of vale that takes a disc as closing part (butterfly board) which rotates around the valve axis to achieve opening and closing. The valve is mainly for cut-off and throttling on pipeline. Butterfly board is driven by the valve stem. A opening and closing is completed as it rotates 90°. The flow of medium may be controlled by changing of deflection angle of butterfly board. Commonly used butterfly valve includes wafer butterfly valve, lug butterfly valve and flange butterfly valve. Butterfly valve is suitable for pipeline that transports various corrosive, non - corrosive fluids in producer, coal gas, natural gas, liquefied petroleum gas, city gas, hot and cold air, chemical smelting and power environmental protection, building water supply and drainage and other engineering systems for regulating and cut-off of medium flow.
Globe valve is a kind of valve with closing part making a linear motion along the center line of valve seat. As the opening and closing stroke of valve stem is relatively short, and with reliable cut off function, and the change of valve seat orifice and stroke of valve clack are proportional, the valve is really suitable for flow regulating. It may be used for cut off or regulating as well as throttling of fluid pipeline for city water, sewage, construction, food, electric power, medicine, metallurgy and textile.
Opening and closing part of gate valve is flashboard. Its direction of motion is perpendicular to the direction of fluid. The valve is usually used to cut-off medium. The entire flow channel is a straight-through passage when the valve is fully-open, and the pressure loss of medium running is minimum. Gate valve is usually divided into several types by seal part mode, such as: wedge gate valve, plate gate valve, parallel 2-flashboard gate valve, wedge 2-flashboard gate valve. Gate valve is usually for working condition in which the valve is not opened or closed frequently, and supports flashboard fully open or fully closed. It's not suitable for adjustment or throttling. Different materials may be selected for transportation of water, steam, oil, natural gas, nitric acid, acetic acid, oxidant and urea.
China Fagong Valve Co.,Ltd. is located in "the township of pump and valve", Oubei Town, Wenzhou City, Zhejiang Province, China. We are professional manufacturer and supplier that have more than 20 years experience in this field. We specialize in manufacturing all kinds of valves with high quality and competitive price. We have high-middle pressure valve, gate valve, ball valve, check valve, globe valve, butterfly valve ect.. There are many usual standards, such as GB, ANSI, API, DIN and so on. The sizes are 1/2"-48", and the pressures are 150LB-2500LB. The valves are available in different sizes and classes depending on the required application. China Fagong Valve CO., Ltd guarantee to only produce good-quality valve.
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