Product Description
The ZAZM series electric sleeve regulating valve receives DC current signals from the regulating instrument, changes the flow rate of the regulated medium, and maintains the controlled process parameters at the given values. Widely used in the production automation control of industrial sectors such as power, metallurgy, chemical, petroleum, textile, pharmaceutical, papermaking, etc.
The nominal diameter of this series of products ranges from 20 to 200mm, with nominal pressures of 1.0, 1.6, 4.0, and 6.4MPa. The operating temperature range is from -40 ℃ to 450 ℃, and the received signal is from 0 to 10mA DC or 4-20mA DC. The electric single seat regulating valve is suitable for situations with small pressure difference, high medium viscosity, or slight particle impurities. Electric sleeve regulating valve is suitable for situations with large pressure difference. According to the material of the sealing part of the valve, there are two types: metal metal and non-metal metal seals. The latter can achieve a leakage rate of VI level (zero leakage) when the valve is closed. According to the different packing materials, it can be divided into two types: general packing seal and corrugated pipe seal. The former is used in general occasions, while the latter is used in important occasions where leakage is not allowed. The flow characteristics are linear or equal percentage. There are two types of actuators available: ordinary and electronic. A variety of varieties and scales are available for selection.
Product Features
The valve body is designed according to the principles of fluid mechanics, with a low flow resistance flow channel of equal cross-section, and the rated flow coefficient is increased by 30%.
The adjustable range is large, with an inherent adjustable ratio of 50, and the flow characteristics include straight lines and equal percentages.
The electric sleeve regulating valve plug is equipped with upper and lower pressure equalization holes, which have low unbalanced force, good valve stability, strong sleeve interchangeability, and large pressure difference during use.
The regulating cut-off type adopts a soft sealing structure valve core, which meets the VI level leakage standard (zero leakage).
The servo amplifier adopts deep dynamic negative feedback, which can improve the accuracy of automatic adjustment.
There are various forms of electric operators that can be applied to 4-20mA. DC or 0~10mA DC。
Electronic electric control valves can be directly controlled by current signals to regulate valve opening, without the need for servo amplifiers.
The bellows sealed regulating valve forms a complete seal against the moving valve stem, blocking fluid leakage.
Part material
Valve body and valve cover: HT200、ZG230-450、ZG1Cr18Ni9Ti
Valve core: ZG1Cr18Ni9Ti、 Si Tai Lai alloy overlay welding enhances polytetrafluoroethylene
Packing: polytetrafluoroethylene, flexible graphite
Push rod and liner: 2Cr13
Gasket: Rubber asbestos board, 10, 1Cr18Ni9Ti asbestos wrapped gasket
Bellows: 1Cr18Ni9Ti、
technical parameter

Main technical parameters

The performance indicators of this product comply with GB/T4213-92. Technical parameters related to supporting electric actuators

The data in the table is for regular configuration only, and the specific selection depends on the main parameters and user requirements.

Allow pressure difference

Electric sleeve regulating valve allows differential pressure gauge

If the allowable pressure difference is greater than the nominal pressure, the nominal pressure value shall be taken.

Product Features

Size and weight

Connection standards
Flange standards: Cast iron flanges according to GB4216-84, cast iron flanges according to GB9113-88
Flange sealing surface type: PN10, PN16 are convex surfaces
PN40 and PN64 are concave and convex surfaces, and the valve body is concave
Structural length: GB12221-89
Jacket insulation type jacket heat carrier interface: butt welding with a diameter of 18 × 4
The distance between the valve body flange and the flange end face can be manufactured according to the standard specified by the user. Standards such as ANSI, JIS, DIN, etc

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