ZSHV and ZSRV pneumatic V-ball valves

ZSHV and ZSRV pneumatic V-ball valves

Overview
Pneumatic V-shaped ball valve is an advanced control valve with a right angle rotating structure,It consists of a piston type double acting or single acting (spring return type) pneumatic actuator and a V-shaped valve structure,It is used in conjunction with an electrical valve positioner to achieve proportional adjustment; Used in conjunction with solenoid valves and control boxes, it can achieve two position cut-off control. The V-shaped ball valve core is designed with a specially shaped V-shaped notch, which has precise flow characteristics and control functions, and is suitable for controlling media such as gas, liquid, solid particles, etc. Due to the seamless rotation between the valve core and valve seat, it has great shear force and self-cleaning performance, especially suitable for automation control systems in suspensions and solid particles containing fibers or small solid particles.

feature

1. PneumaticVType ball valvePowered by compressed air, the valve stem is mechanically transmitted through a piston rack and gear, and the torque output by the angular stroke rotates the sphere 0-90 º to complete the opening and closing action or adjustment action.By using a matching electrical valve positioner to input a 4-20mA current signal, the rotation angle of the valve core can be changed (any angle from 0-90 º) to adjust and control parameters such as flow rate. Accurate control, small size, light weight, low flow resistance, high flow coefficient, simple structure, and good sealing performance.It is a valve that truly controls the process status with high efficiency.
2. Excellent regulating characteristics: V-shaped valves have an approximately equal percentage of inherent flow characteristics and can reach up to300:1Adjustable ratio. Therefore, V-shaped valves can provide precise control over a wide range of variations.
3. Flow volume: Due to its streamlined shape and full right angle rotation control, the upper limit of the volume is particularly high, the flow capacity is particularly large, and the flow resistance is small, so smaller and more economical valve sizes can be used.
4. The V-shaped valve adopts a dual bearing structure, with high mechanical stability and low starting torque, ensuring excellent sensitivity and sensing speed of the valve.

5. Reliability (safety): The valve body is a solid and durable structure, which is not affected by pipeline pressure during operation and can prevent valve body leakage.
6. Superior sealing performance of metal valve seat: The V-shaped valve adopts an elastic movable metal valve seat, which has self compensation function, superior sealing performance, and ultra long service life. Leakage rate in the flow direction≤10­^-5×Rated flow coefficient.
7. Super strong shear capacity: When the V-shaped valve adopts a metal hard seal structure, the V-shaped valve core and metal valve seat generate a strong shear force with the V-shaped notch and valve seat during the rotation process, which can cut off impurities such as fibers and has self-cleaning function to avoid valve jamming.
8TheGTTypeATType orAWThe pneumatic actuator adopts a piston type cylinder and a curved arm conversion structure, which has a large output torque and a small volume. The actuator adopts a fully sealed waterproof design with high protection level. The cylinder block adopts a mirror cylinder, oil-free lubrication, low friction coefficient, corrosion resistance, and has super durability and reliability. All transmission bearings adopt boundary self-lubricating bearings without oil lubrication to ensure that the transmission shaft does not wear out

Main component materials and applicable temperatures

Allowable pressure difference(MPa)

flow characteristics（Inherent flow characteristic curve of V-regulating ball valve

Product technical parameters and performance indicators

Nominal DiameterD（mm）

25

32

40

50

65

80

100

125

150

200

250

300

Rated flow coefficientCv

32

47

78

110

170

280

410

750

1120

1850

2950

3800

Nominal PressurePN（MPa）

1.62.5, 4.0, 6.4

flow characteristics

Approximate equal percentage (see typical curve chart), straight line characteristics, quick opening

Valve plate angle (degrees)

0°～90 ° (adjustable)

Allowable leakage level

Soft seal: zero leakageHard seal: ≤ 10-5Rated flow coefficient

mode of action

double-acting/Single acting (spring reset type)

Control type

Cut off type/Adjustable type

actuator

model

DA seriesGT series, AW series, ZSQ series, etc

air supply pressure

Purified compressed air (nitrogen)0.3-0.7MPa

Adjustable type

input signal

Current signal:0～10mA、4～10mA Gas source signal 20-100kPa

Basic error

Equipped with locator ≤±1.5%

return poor

Equipped with locator ≤1.5%

死 district

Equipped with locator ≤0.6%

Adjustable ratio

250:1

300:1

Cut off type

Feedback voltage

AC220V、AC110V、DC24V、

Cut off time

0.5 S

1.0 S

2.5～4.0 S

7.0 S

Options for attachments (depending on different controls and requirements, the following attachments can be selected:)
Cut off accessories: single electric control solenoid valve, dual electric control solenoid valve, limit switch feedback device.
Adjustable accessories: electrical locator, pneumatic locator, electrical converter.
Air source processing accessories: air filter pressure reducing valve, air source processing triad.
Manual mechanism: HVSD manual control mechanism

Outline Connection Size Table