Semi ball valves have the characteristics of small opening force, good sealing performance, etc. Hemispherical valves are widely used in two-phase media such as water, steam, sewage, petrochemical industry, natural gas, solution and slurry, as well as ideal transmission equipment for dust and gas, because of their wear-resistant and corrosion-resistant materials.
Spring return ball valve only needs to rotate 90 degrees of operation and a very small moment of rotation to connect the flow of media, loosen the handle of the ball valve, and automatically rebound under the action of the spring reset.
Rectangular Port/Square Slide Gate Valve/ Penstock usually is mainly used for water supply and drainage, chemical flood control, water conservancy and other hydraulic structures, outlets, working channels switching or cutting off water flow.
Depends on amount method can be Canal/Channel gate valve, Wall- attached Slide gate valve/Wall -Mounted Penstock
The purpose of extension long stem for valve mainly for three reason: Low temp. medium , High temp. medium, Remote operation. 1. Low temp. medium, to reduce heat transportation, keep neck packing warm enough. so long stem was adopted. 2. High temp. medium, to have better heat radiation,to keep neck packing cool enough and also easy for operator touch, extension was considered. 3. Remote control, to enable operator control valve far from pipe valve, extension can also be used.
Oxygen globe valve is one of the special valves for oxygen pipeline network. It not only has the function of ordinary globe valve, but also has the characteristics of good flame retardancy, good conductivity, fast heat transfer, compact structure, oil proof, safety and reliability. With the development of metallurgical industry, oxygen globe valve and oxygen ball valve are widely used in iron and steel, metallurgy, medicine, chemical industry and so on.
With the acceleration of urbanization in China, domestic sewage treatment and municipal treatment facilities will also be developed on a large scale. As a necessary pipe and valve, it will welcome a broad market prospects.
Thanks to the strong support of the government, the production and application of plastic pipes in China has really begun to develop rapidly, and cast iron pipes have been replaced in some fields, such as: sanitary ware water tank fittings with water intake below water level (low water intake); leakage with water seal less than 5 cm, which is prohibited in all new construction projects and maintenance projects; cast iron drainage pipes with common sockets (manual sand turning rigid joint) Cast Iron Drainage Pipe; Galvanized Iron Sheet Outdoor Rainwater Pipe; Spiral Lifting Cast Iron Nozzle; Cast Iron Globe Valve. It is not allowed to be used in indoor parts of residential projects. Continue reading “The market competitiveness of cast iron valves is further reduced？”
It refers to a kind of valve whose closing parts are plunger-shaped rotary valves. The opening or closing of the valve can be realized by 90 degree rotation to make the opening on the valve plug and the opening on the valve body open or separate. The shape of the valve plug can be cylindrical or conical. Its principle is basically similar to that of ball valves. Ball valves are developed on the basis of cock valves. They are mainly used in oil field exploitation and petrochemical industry.
Valve refers to a valve whose closure (disc) moves along the center line of the seat. According to the movement of the disc, the change of the seat opening is proportional to the disc travel. Because the stem opening or closing stroke of this kind of valve is relatively short, and has a very reliable cut-off function, and because the change of the seat opening is proportional to the disc travel, it is very suitable for flow regulation. Therefore, this type of valve is very flexible for cutting or regulating and throttling.