Three-piece ball valve features

November 15 02:59:45, 2024

The three-piece ball valve and the gate valve are the same type of valve. The difference is that the closing member is a ball, and the ball rotates around the center line of the valve body to open and close a valve. The ball valve is mainly used in the pipeline to cut, distribute and change the flow direction of the medium. The three-piece ball valve is a new type of valve that has been widely used in recent years. Introduction Shanghai Caperon, the three-piece ball valve and the gate valve are the same type of valve. The difference is that the closing member is a sphere, and the ball rotates around the center line of the valve body to open and close a valve. The three-piece ball valve is primarily used in the pipeline to cut, distribute and change the direction of flow of the medium. The three-piece ball valve is a new type of valve that has been widely used in recent years. Advantages The three-piece ball valve has the following advantages: 1. The fluid resistance is small, and its resistance coefficient is equal to the pipe length of the same length. 2. The structure is simple, small in size and light in weight. 3. It is close and reliable. At present, the sealing surface material of the ball valve is widely used in plastic and has good sealing performance. 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, the sealing ring is generally active, and the disassembly and replacement are more convenient...
The ball valve is a valve with a ball as a closing member. The main function of the ball valve is to cut and close the fluid in the pipe. The ball valve has the characteristics of small fluid resistance, good sealing, quick switch and high reliability.

The ball valve is mainly composed of a valve body, a valve stem, a ball body and a sealing ring. It is a 90° switch shut-off valve. It applies a certain torque to the upper end of the valve stem by means of a handle or a driving device, and transmits it to the ball to rotate it by 90°. The through hole of the sphere is coincident or perpendicular to the center line of the valve body passage, and the full opening or closing operation is completed. The commonly used ball valve structure is divided into two categories: a floating ball valve and a fixed ball valve.

The ball of the floating ball valve is freely supported on the sealing ring, and is in close contact with the downstream sealing ring under the action of fluid pressure to form a single-side sealing at the downstream end. It is suitable for low pressure, small diameter applications.

The ball of the fixed ball valve has upper and lower rotating shafts and is fixed in the bearing of the ball. Therefore, the ball is fixed, but the sealing ring is floating, and the sealing ring is pressed against the ball by the spring and the fluid thrust to generate the upstream end seal. Suitable for high pressure, large diameter applications.

Straight welded ball valves are used in underground facilities, offshore platforms and subsea equipment. The straight-welded ball valve uses high-quality forged parts and is integrated into a single layer by welding in the middle part of the valve, making the shape of the valve more similar to a spherical shape. The valve structure is more compact, lighter in weight and stronger. Single-layer direct welding also enables high-precision valve manufacturing, enabling a fully sealed seal between the seat and the ball. The fully welded, non-bolted body design completely eliminates external leaks. At the same time, this type of ball valve is designed with a fireproof construction and requires no maintenance.

The track ball valve is a multi-turn ball valve that uses the principle of tilting and rotating to eliminate sealing surface scratches. When the valve is closed, the core is wedged to the sealing seat by mechanical force, ensuring a tight seal without the help of differential pressure; when the valve is opened, the core is tilted away from the seat, and the fluid along the line is along the ball. The core surface 360o passes through the valve evenly, eliminating localized erosion of the valve seat by the high velocity fluid. Because the valve is open and closed without friction, the operation is light and reliable.
The article originated from: http://?id=171

T5/T8 Tube Integrated UV Lamp

18 Watt Uv Bulb,A Uv Lamp,Uv Light Curing System,Handheld Uv Light Sterilization

Guangdong Kingrate Optoelectronic Technology Co., Ltd. , https://www.kingrateuv.com