ZAZP type electric single seat control valve the DKZ straight-way electric implementing agencies, and direct low flow resistance of a single seat valve. It has only one seat and a plunger-shaped spool, with a good airtight performance. Oriented parts (upper and lower pairs of oriented or bush top-oriented) structure-oriented area, vibration resistance, etc., have strict requirements of the occasion to apply to the amount of media leaks, but because of the reasons on the valve structure, valve pole of the unbalanced force, especially in the nominal diameter large condition more obvious, so the valve is only suitable for smaller occasions of working pressure.
ZAZN electric two-seat valve seat valve by the DKZ straight-way electric implementing agencies and direct low flow resistance, two-seat dual-oriented structure, the spool in the displacement process is stable and reliable valve body seat and two two plunger-shaped spool, fluid medium flows through the upper and lower valve seat, with big traffic, allowing a large pressure difference, the unbalanced force is small, is a balanced structure of seat valve, applies not very clean medium and leakage The amount requested is not strictly occasions.
ZAZM electric sleeve valve DKZ type electric actuator blocking and pass-through low flow of balanced sleeve valve, the spool with the pressure balanced spool, structure, spool cylindrical, the inner circle of the sleeve guide and top-oriented, and thus the unbalanced force on the valve stem, stable operation, good performance is a force balance control valve. For high occasions at both ends of the pressure difference before and after the valve spool sleeve side-oriented eddy current arising from the impact of vibration is reduced, it has a low noise, small flash role of cavitation, long life . Seat leakage rate is slightly larger than a single seat valve.
ZAZP, ZAZN the, ZAZM electric (single-seat, two-seater, sleeves), regulating valve, is the implementation of the DKZ type electronic control unit, which is an important part of one of the automatic regulation system of the production process, it AC220V power supply voltage of the action force, to accept a unified standard signal 0-10mA DC or 4-20mA DC, this into the input signal corresponding to the displacement of the upper and lower automatically manipulate the valve to change the valve opening displacement to achieve the right process pipeline fluid medium, such as the automatic adjustment of parameters such as pressure, flow, temperature, liquid level control.
ZAZP, ZAZN, ZAZM-type electric control valve according to the mode of action can be divided into;
Positive role: power closed - normally open valve position (when the signal increases downward displacement), "B type"
Reaction: power open - normally closed valve position (when the signal increases upward displacement), "K-type"
This series of products are widely used in chemical, petroleum, metallurgy, power plant, textile, paper and pharmaceutical industrial production process of automatic regulation and remote control.
Standard bellows seal type, jacket and insulation type varieties. Product pressure grade PN1.6 4.0 6.4MPa; nominal diameter DN20-300mm; applicable fluid temperature -40 - +450 ℃; with different valve cover can be divided into high and low temperature with room temperature, high temperature; flow characteristics such as the percentage (logarithmic), a straight line.
