Zui big valve wholesale base in Henan area
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Class 150～600Lb NPS 2～24′′ fixed forged steel high pressure ball valve
When the pressure in the valve stagnation exceeds the preload of the spring, the seat retreats out of the ball to achieve the effect of automatic pressure relief. The valve seat is automatically reset after the pressure is released. 2. In the event of a fire or a burning or softening of the seat seal due to abnormal temperature rise, the spherical surface of the support ring and the sphere form a metal-to-metal contact under the action of the spring and the medium pressure, thereby achieving a temporary sealing effect and preventing The fire has further expanded to comply with API 6FA regulations. 3. The packing gland part is sealed with PTFR packing and 0-ring sealing ring. It is especially suitable for gas medium. The packing is installed in the packing disc. The new SF type self-lubricating sliding bushing with low friction system can be used at any time to reduce the operation. Torque. The fixed forged steel high pressure ball valve is suitable for long-distance pipelines of Class 150-600Lb, working temperature <150°C and general industrial pipelines. Its safety and harsh environment resistance have been specially considered for water, oil and steam. Wait
Media design and manufacturing: GB12237, API 6D
Structure length: GB12221, ANSI B16.10
Flange connection: JB/T79, GB9112-9131 ANSI B 16.25
Pressure temperature rating: ANSI B16.34 E101
Test and inspection: API598 E101
| Product use : The fixed forged steel high pressure ball valve is suitable for long-distance pipelines of Class 150-600Lb, working temperature <150°C and general industrial pipelines. Its safety and harsh environment resistance have been specially considered for water, oil and steam. And other media. |
| Product structure characteristics : 1. When the pressure in the valve cavity is abnormal beyond the preload of the spring, the valve seat retreats out of the ball to achieve the effect of automatic pressure relief. The valve seat is automatically reset after the pressure is released. 2. In the event of a fire or a burning or softening of the seat seal due to abnormal temperature rise, the spherical surface of the support ring and the sphere form a metal-to-metal contact under the action of the spring and the medium pressure, thereby achieving a temporary sealing effect and preventing The fire has further expanded to comply with API 6FA regulations. 3. The packing gland part is sealed with PTFR packing and 0-ring sealing ring. It is especially suitable for gas medium. The packing is installed in the packing disc. The new SF type self-lubricating sliding bushing with low friction system can be used at any time to reduce the operation. Torque. |
Design and manufacture: GB12237, API 6D
Structure length: GB12221, ANSI B16.10
Flange connection: JB/T79, GB9112-9131 ANSI B 16.25
Pressure temperature rating: ANSI B16.34 E101
Test and inspection: API598 E101
Product definition introduction:
GB/T21465-2008 "Valve Terminology" is defined as: the opening and closing member (sphere) is driven by the valve stem and rotates around the axis of the valve stem.
High-pressure ball valves were introduced in the 1950s. With the rapid development of science and technology, the continuous improvement of production technology and product structure has rapidly developed into a major valve category in just 40 years. In countries with developed industries in western countries, the use of high-pressure ball valves is increasing year by year. In China, ball valves are widely used in petroleum refining, long-distance pipelines, chemical, paper, pharmaceutical, water conservancy, electric power, municipal, steel and other industries. It plays a pivotal role in the national economy.
The high pressure ball valve is mainly used to cut off or close the medium in the pipeline, and can also be used for fluid regulation and control. The hard seal V-ball valve has a strong V-shaped ball core and a metal valve seated with hard alloy. Shear force, especially suitable for media containing fibers, tiny solid particles. The multi-way ball valve not only can flexibly control the confluence, splitting, and flow direction switching of the medium, but also can close any channel and connect the other two channels. This type of valve should generally be installed horizontally in the pipeline.
High pressure ball valve working principle:
The high pressure ball valve has a 90 degree rotation action, the cock body is a sphere with a circular through hole or passage through its axis. The ball valve is mainly used in the pipeline to cut, distribute and change the flow direction of the medium. It only needs to be rotated 90 degrees and the torque can be closed tightly. The ball valve is suitable for use as a switch or shut-off valve, but recent developments have designed ball valves to provide throttling and control flow, such as V-ball valves.
The main features of the high-pressure ball valve are its compact structure, reliable sealing, simple structure and convenient maintenance. The sealing surface and the spherical surface are often closed, not easily eroded by the medium, easy to operate and maintain, suitable for water, solvent, acid and natural gas. Working medium, but also suitable for medium with harsh working conditions, such as oxygen, hydrogen peroxide, methane and ethylene, which are widely used in various industries. The ball valve body may be integral or combined.
High pressure ball valve advantages:
1. The fluid resistance is small, and the full-bore ball valve has substantially no flow resistance.
2. The structure is simple, small in size and light in weight.
3. Tight and reliable. It has two sealing faces, and the sealing surface material of the ball valve is widely used in various plastics, and has good sealing performance and can achieve complete sealing. It has also been widely used in vacuum systems.
4. The operation is convenient, the opening and closing is rapid, and the rotation is 90° from full opening to full closing, which is convenient for long-distance control.
5. The maintenance is convenient, the ball valve has a simple structure, and the sealing ring is generally movable, and the disassembly and replacement are relatively convenient.
6. When fully open or fully closed, the sealing surface of the ball and the valve seat is isolated from the medium, and the medium does not cause erosion of the sealing surface of the valve.
7. Wide range of applications, from small to a few millimeters, up to a few meters, from high vacuum to high pressure can be applied.
8. Since the ball valve is wiping during opening and closing, it can be used in a medium with suspended solid particles.
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