Size Range: 1/2″ up to 48″ Pressure Range: ANSI 150LB to 2500LB End Connection: BW,RF,RTJ Operate: Handwheel, Gear, Actuator Material: Stainless Steel Seals: Metal to Metal
Introduction to Cryogenic Stainless Steel Ball Valve
The opening and closing part of the stainless steel gate valve is a gate. The direction of movement of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed. The gate has two sealing surfaces. The two sealing surfaces of the most commonly used gate valves form a wedge shape. The wedge angle varies with the valve parameters, usually 50, and 2°52 ‘when the medium temperature is not high. The gate of the wedge gate valve can be made into a whole, called a rigid gate; it can also be made into a gate that can produce a small amount of deformation to improve its processability and make up for the deviation of the sealing surface angle during processing. The plate is called a spring gate. Ball valves material is divided into a 304 stainless steel gate valve, 316 stainless steel ball valve, 321 stainless steel gate valve. The expression method is Q41H-16P.
|Face to Face:
|ANSI B16.5, ANSI B16.25
|Fire Safe Testing:
|API607, ISO10497, API6FA
Application of 3 Way Ball Valve:
1. The flange ball valve has the action of rotating 90 degrees, the cock body is a ball.
2. There are circular through holes or channels passing through its axis.
3. Flanged ball valves are most suitable for switching and shut-off valves. The development has designed the ball valve so that it can be used for throttling and flow control, such as V-type ball valves.
stainless steel ball valve function: mainly used to switch, cut off, or connect the medium in the pipeline, can also be used for fluid regulation and control.
Applicable medium: water, solvent, acid, natural gas, oxygen, hydrogen peroxide, methane and ethylene
Flange ball valve applications: chemical, petrochemical, petroleum, paper, mining, power, liquefied gas, food, pharmaceutical, water supply and drainage, municipal, mechanical equipment, electronic industry, urban construction, and other fields.
Flanged ball valves are also suitable for media with harsh working conditions, such as oxygen, hydrogen peroxide, methane, and ethylene, etc., and are widely used in various industries. The ball valve body can be integral or combined.
Main Features of Flange Ball Valve:
The main features of the flanged ball valve are its compact structure, reliable sealing, simple structure, and easy maintenance. The sealing surface and the spherical surface are often in a closed state, which is not easy to be eroded by the medium and is easy to operate and maintain. It is suitable for water, solvents, acids, and natural gas. General working medium.
The difference between the Ball Valve and Gate Valve
Gate valve: It is also called a gate valve or gate. There is a gate in the valve body perpendicular to the flow direction of the medium. Adjust the height of the gate to adjust the flow of fluid. Gate valves generally close more slowly. It is generally used in the main control valve of heating pipes and water supply and drainage pipes. Ball valves have been widely used in petroleum, chemical, power generation, papermaking, atomic energy, aviation, rockets, and other departments, as well as people’s daily lives.
The gate valve has the advantages of low resistance, tight closing, and no water hammer phenomenon. It is widely used in various liquid and gas shut-off valves. It also has a certain adjustment function, but when it is partially opened, the shutter is susceptible to wet by the fluid, the fluid will cause the vibration of the shutter when the fluid flows, and the sealing surface is easy to wear.
The disadvantage of the gate valve is that the structure is complicated, the price is relatively expensive, and it is not easy to repair, and the solid matter is easily deposited in the valve seat groove and is not tightly closed.
Therefore, it is not suitable for pipelines containing fibrous or solid substances in the fluid. It is commonly used in air, steam, and oil media pipelines, and also used as a vent valve and a valve for low-silk systems.
Gate valve is one of the commonly used shut-off valves, mainly used to connect or cut off the medium in the pipeline, not suitable for regulating the flow of the medium. Q valve is suitable for pressure, temperature, and caliber range, especially for medium and large caliber pipes.
Ball valve: A ball with an opening is used as the valve core, and the ball is rotated to control the opening and closing of the valve. Ball valves are used in petroleum refining, long-distance pipelines, chemicals, papermaking, pharmaceuticals, water conservancy, electricity, municipal administration, steel, and other industries.
The ball valve has a simple structure, the ball valve is lighter in weight than the globe valve, the structure is relatively simple, and its overall weight is very light, so it can play a better effect in low-temperature media systems; the sealing surface is easy to process, the sealability is also good, and the operation Convenient, fast switching, short start-up and closing time, it can make the test system get a quick optimization, and there will be no impact during the starting and closing of the valve.
But it can not be used to adjust the flow rate. It is suitable for high-pressure (up to 320 gauge) pipelines. At present, due to the limitation of sealing materials, it can only be used below 200 ℃, and can also be used for suspensions and various media with high viscosity. And its regulating performance is worse than the cut-off valve, especially the pneumatic valve (or electric valve).
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