Hanno Valve Steel Gate Valves are suitable for a variety of working conditions, including petroleum, chemical, pharmaceutical, fertilizer, power and other industries, suitable for cutting off or connecting pipeline media, but can not be used for regulating and throttling. The structure design of Steel Gate Valves is reasonable, the opening and closing is less labor, the medium flow is not restricted, the flow is not disturbed, the pressure is not reduced, the operation is relatively easy.
All gate valves made of metal steel materials cast into castings are collectively referred to as Steel Gate Valves. Corresponding to cast steel gate valves are cast iron gate valves, forged steel gate valves, and malleable cast iron gate valves. The opening and closing component of cast steel gate valve is the gate plate, and the movement direction of the gate plate is perpendicular to the fluid direction. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve has two sealing surfaces, and the two sealing surfaces of the commonly used mode gate valve form a wedge-shaped and cherry shaped angle, which varies with the valve parameters, usually 50, and 252 when the medium temperature is not high. The gate plate of a wedge gate valve can be made as a whole, called a rigid plate, or as an intermediate plate that can produce slight deformation to improve the basic process parts and compensate for the deviation of the sealing surface angle during the processing. This type of plate is called an elastic plate, which has significant advantages such as lightweight opening and closing, easy sealing, good memory of the elastic member, and long service life. It can be widely used as a regulating and current carrying device on pipelines such as tap water, sewage, construction, petroleum, chemical, food, medicine, textiles, electricity, ships, metallurgy, energy systems, etc.
The fluid resistance is low, and the sealing surface is less susceptible to the friction and erosion of the medium. Opening and closing is more effortless. The flow direction of the medium is unrestricted, without disturbance or pressure reduction. The structure is simple, the structure length is short, the manufacturing process is good, and there are many materials available for high temperature and high pressure resistance, with a wide range of applications.
NO. | Part name | Materials |
---|---|---|
1 | Body | 25L |
2 | Seat surface | 13Cr |
3 | Disc | 25L+13Cr |
4 | Stem | 2Cr13 |
5 | Gasket | 304+Graphite |
6 | Nut | A194-2H |
7 | Bolt | A193-B7 |
8 | Bonnet | 25L |
9 | Sealing surface | 13Cr |
10 | Packing | Expanded graphite |
11 | Gland flange | 25L |
12 | Bolt | A193-B7 |
13 | Nut | A194-2H |
14 | BOX | Molectron |