Product name: Imported stainless steel ball valve Product model:
Buhrer series
Drive method: manual, electric, pneumatic Connection: flange
Structure: floating ball, fixed ball, elastic ball Seal structure: PTFE, PPL, hard seal, O-ring
Pressure range: 1.0MPa-32MPa Nominal dia
meter: DN15-300
Common materials: WCB, stainless steel, 304, 316, chrome molybdenum steel, titanium alloy steel, etc.
Product introduction
The imported stainless steel ball valve produced by Breer can be driven by manual, electric, pneumatic, flanged connection, floating ball, fixed ball, elastic ball, PTFE, PPL, hard seal, O Sealing ring, pressure range PN1.0MPa-32MPa, nominal dia
meter is DN15-300mm, material can choose WCB, stainless steel, 304,316, chromium molybdenum steel, titanium alloy steel Because the valve is used in a very wide range, the same valve has different combinations in different situations and working conditions.
Product Details
The imported stainless steel ball valve is mainly used to cut off or connect the medium. It can also be used for fluid regulation and control. Widely used in natural gas, petroleum, chemical, metallurgy, electric power, construction, heating, water supply and drainage, water treatment and other industries.
Advantages of imported stainless steel ball valve
1. The fluid resistance is small, and the full-dia
meter ball valve has almost no fluid resistance.
2. Simple structure, small size and light weight.
3. Tight and reliable. It has two sealing surfaces. At present, the sealing surface materials of ball valves are widely used in various plastics, which have good sealing performance and can achieve complete sealing. It has also been widely used in vacuum systems.
4. Easy operation, fast opening and closing, only need to rotate 90 ° from fully open to fully closed, which is convenient for remote control.
5. Easy maintenance, simple structure of ball valve, seal ring is usually movable, and it is more convenient to disassemble and replace.
6. When fully open or fully closed, the sealing surfaces of the ball and valve seat are isolated from the medium, and the medium will not cause erosion of the valve sealing surface when the medium passes.
7. Wide range of applications, from small dia
meter to several milli
meters, large to several
meters, from high vacuum to high pressure can be applied.
8. Because the ball valve is wipeable during opening and closing, it can be used in media with suspended solid particles.
Imported stainless steel ball valves can be divided according to structure:
1 floating ball valve
The ball of the ball valve is floating. Under the action of the medium pressure, the ball can produce a certain displacement and be tightly pressed on the sealing surface at the outlet end to ensure the outlet end is sealed.
The structure of the floating ball valve is simple and the seal is good, but the load of the ball bearing the working medium is transmitted to the outlet seal ring. Therefore, it is necessary to consider whether the material of the ring ring can withstand the working load of the ball medium. This structure is widely used in medium and low pressure ball valves.
Two fixed ball valve
The ball of the ball valve is fixed and does not move after being pressed. The fixed ball valve has a floating valve seat. After the pressure of the medium, the valve seat moves, so that the sealing ring is tightly pressed on the ball to ensure the seal. Bearings are usually installed on the upper and lower shafts of the ball, and the operating torque is small, which is suitable for high pressure and large dia
meter valves.
In order to reduce the operating torque of the ball valve and increase the reliability of the seal, oil-sealed ball valves have appeared in recent years. The special lubricating oil is injected between the sealing surfaces to form a layer of oil film. , More suitable for high pressure large dia
meter ball valve.
Three elastic ball valve
The ball of the ball valve is elastic. Both the ball and the valve seat seal ring are made of metal materials. The specific pressure of the seal is very large. Depending on the pressure of the medium itself, the requirements for sealing cannot be achieved, and external forces must be applied. This valve is suitable for high temperature and high pressure media.
The elastic sphere is provided with an elastic groove at the lower end of the inner wall of the sphere to obtain elasticity. When the passage is closed, the wedge-shaped head of the valve stem is used to expand the ball and tightly press the valve seat to achieve a seal. Before turning the ball, loosen the wedge-shaped head, and the ball will then return to its original shape, so that there is a small gap between the ball and the valve seat, which can reduce the friction and operating torque of the sealing surface.
Note: In the closed state of the flange ball valve, there is still pressurized fluid inside the valve body. Before maintenance, release the line pressure and keep the valve in the open position. Before maintenance, disconnect the power or air source. Before maintenance, connect the actuator and the bracket Break away.
Imported stainless steel ball valve standard
Designed and manufactured according to ANSI B16.34, JIS 2071
Structure length according to JIS B2002
Flange connection size according to JIS B2212, 2214
Inspection according to JIS B2003