ZQDF series steam solenoid valve
ZQDF series steam solenoid valve is an actuator for industrial process automation control system. It can automatically open or close the valve after receiving the electronic control signal to realize the on/off or flow regulation control of the fluid medium in the pipeline, thus the temperature in the system. Parameters such as flow rate and pressure are automatically adjusted or remotely controlled. This series of solenoid valve products can be widely used in textile, printing, chemical, plastics, rubber, pharmaceutical, food, building materials, machinery, electrical appliances, surface treatment and other production and scientific research departments as well as bathroom, canteen, air conditioning and other people's daily life facilities. ZQDF series is mainly used for the control of air, steam, gas and other gaseous media; ZQDF-Y series solenoid valves are mainly used for liquid media such as tap water, distilled water, frozen brine, electroplating waste liquid, etc., and also for oil with viscosity less than 4°E. class.

Structural features: Corrosion resistance: The main components are valve plugs, the valve body is made of stainless steel and cast steel, and the corrosion resistance is good.
Heat resistance: The electromagnetic and sealing parts are all made of special high temperature resistant electrical materials and sealing materials, and effective heat insulation measures are adopted.
Wear-resistance: Reasonable material selection, clever use of fluid lubrication between the valve plug and the valve body to reduce wear.
Resistance to condensation: The condensate of the steam line is an important factor affecting the operation of the steam solenoid valve. The valve is not affected by the condensate.

ZQDF series steam solenoid valve is a step-by-step direct pilot type solenoid valve, which can be divided into normally closed solenoid valve and normally open solenoid valve according to the different opening and closing states. Normally closed solenoid valve, after the coil is energized, the armature first lifts the auxiliary valve plug under the action of electromagnetic force, and the fluid on the main valve cup flows away through the auxiliary valve, reducing the pressure acting on the main valve cup, when the main valve When the pressure on the valve cup is reduced to a certain value, the armature drives the main valve cup and uses the pressure difference to open the main valve cup and the medium circulates. After the coil is de-energized, the electromagnetic force disappears and the armature is reset by its own weight. At the same time, depending on the medium pressure, the main and auxiliary valves are tightly closed. Normally open solenoid valve, after the coil is energized, the moving iron core moves down due to the suction force, the auxiliary valve plug is pressed down, the auxiliary valve is closed, the pressure in the main valve valve cup rises, and when the pressure rises to a certain value, the main valve cup The upper and lower pressure difference is the same. Due to the electromagnetic force, the moving iron core pushes the main valve valve cup, presses the main valve seat, and the valve closes. When the coil is de-energized, the electromagnetic suction force is zero, the auxiliary valve plug and the moving iron core are lifted up by the spring action, the auxiliary valve is opened, and the fluid on the main valve valve cup flows away through the auxiliary valve, reducing the acting on the main valve valve cup. The pressure, when the pressure on the main valve cup is reduced to a certain value, the main valve cup is pushed up by the pressure difference, the main valve is opened, and the medium is circulated.

Technical Parameters

Connection size