Pneumatic V-type adjustment ball valve

Pneumatic V-type adjustment ball valve is a newly developed hard seal, PTFE seal adjustment ball valve. It uses leaf spring loaded movable valve seat structure, the valve seat and the ball will not produce jamming or detachment and other issues, reliable sealing, long service life. V-type ball valve spool designed with a special switch V-notch, flow capacity, pressure loss is small, and with accurate closure and control features, flow characteristics for the approximate percentage. Opening and closing pieces of the use of V-shaped ball missing structure, completely solve the valve cavity easy to deposit media problems.

Pneumatic V-type ball valve for regulation Class150 ~ 600, PN1.6 ~ 10.0MPa, temperature ≤ 200 ℃ for a variety of pipelines, used to regulate the pipeline pressure and flow medium. Selection of different materials, can be applied to water, steam, oil, nitric acid, acetic acid, oxidizing media, urea and other media. Because the valve core and valve seat is no gap between the rotation, so it has great shear and self-cleaning properties, especially for containing fibrous or small solid particles of the suspension and solid particles of the control. Therefore, this product can be widely used in petroleum, chemical, paper, power, metallurgy, pharmaceutical, environmental protection and other industrial sectors of the automatic control system.

Pneumatic V-type regulating valve main features:

1, compact structure, small size, can be installed vertically and so on.

2, with excellent regulation features: V-type ball valve has an approximate equal percentage of the inherent flow characteristics and up to 300: 1 adjustable ratio. V-valves therefore provide precise control over a wide range of variations.

3, the maximum flow volume: Due to its streamlined shape and full right-angle rotary control, so that the maximum volume is particularly high, particularly large flow capacity, flow resistance is small, so you can use smaller and more economical and practical valve size.

4, V-type ball valve with double bearing structure, high mechanical stability, low starting torque to ensure that the valve has excellent sensitivity and sensing speed.

5, the most reliable (safety): the valve body as a whole, durable, the operation from the pipeline pressure, and to avoid valve leakage.

6, the superior sealing of the metal seat: V-type ball valve with movable metal seat, self-compensation function, and has superior sealing performance and long service life. In the flow direction, the amount of leakage ≤ 10-6 × rated flow coefficient.

7, super shear capacity: V-type ball valve with a metal seal structure, V-shaped ball valve seat and the metal valve seat during the rotation, V-notch and the valve seat to produce a strong shear force to cut off impurities such as fiber , And has a self-cleaning function to prevent the valve stuck phenomenon.

8, the company's optional pneumatic, electric, and pneumatic regulation, electric regulation.

Pneumatic V-shaped adjustment ball valve structure

Pneumatic V-shaped adjustment ball valve structure

Pneumatic V-type regulating valve action principle

a. Pneumatic piston actuator is double acting:

The pressure of the air source signal output by the double-acting positioner is respectively input to the left and right air chambers of the piston of the actuator. Due to the different air pressure of the left and right air chambers of the input piston, a pressure difference is formed to push the piston for linear motion. Through the gear, rack drive, the piston linear motion into the implementation of the spindle rotation until the left and right air chamber pressure balance, movement stopped. In the implementation of institutions for the rotation of the valve stem driven at the same time, the spool for rotational movement, change the spool, the flow area between the valve seat to achieve the purpose of regulation.

b. pneumatic piston actuator for a single role:

The pressure of the gas signal output by the single-acting positioner is input into the gas chamber on the non-spring side of the actuator. The gas signal pressure acts on the linear motion of the piston of the piston under the action of the difference between the thrust force and the spring force formed on the piston, Through the gear, rack drive. Until the gas signal pressure formed by the thrust and spring balance, the movement stopped. In the implementing agencies for the spindle rotation for the valve stem driven at the same time, the spool for rotation, so as to change the flow area between the valve core, valve seat, to adjust the purpose.

Pneumatic V-shaped adjustment ball valve Features:

Pneumatic V-type ball valve by the V-type body and the ZSQ-type pneumatic actuators and other accessories. Is a high-grade rotary valve control valve. V-type valve long-term does not require repair, long service life, to provide you with a real high Efficiency A valve that controls the condition of a process.

With excellent adjustment characteristics, the V-shaped ball valve has approximately equal percentage flow characteristics and a variable ratio of up to 300: 1. The V-ball valve therefore offers precise control over a wide range of sub-ranges.

Pneumatic V-shaped ball valve and the valve supporting the use of locator can be achieved proportional adjustment, and two five-way high temperature solenoid valve and control box supporting the use of switch control can be achieved.V-type ball valve core design with a special shape V Notched, with accurate interception properties and control functions, suitable for a variety of control occasions, with a large rated flow coefficient, adjustable ratio, superior sealing performance, compact structure, small size, can be installed vertically, etc. For gas, liquid , The control of the solid particulate medium.As the valve core and the seat is no gap between the rotation, so it has great shear and self-cleaning properties, especially for containing fibrous or small solid particles of the suspension and Therefore, this product is widely used in petroleum, chemical, power, paper, metallurgy and other industries.

The maximum flow volume, due to its streamlined line and full square cornering control, results in a particularly high maximum volume, particularly high flow capacity and low flow resistance, allowing the use of smaller, more economical valve sizes.

V-type ball valve with double bearing structure, high mechanical stability, starting torque is small, to ensure that the valve has a good sensitivity and induction speed.

Maximum reliability (safety), the valve body as a whole structure, durable, operation is not affected by pipeline pressure, and to avoid valve leakage.

Metal valve seat superior sealing, V-valve with movable metal seat, with self-compensation function, and has excellent sealing performance and long service life.

Super shear capacity, V-type ball valve with a metal seal structure, V-shaped valve seat and the metal valve seat during the rotation, V-notch and the valve seat to produce a strong shear force to cut off fibers and other impurities, and has Self-cleaning function, to avoid the phenomenon of valve stuck.

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