ZQDF steam solenoid valve

ZQDF steam solenoid valve

ZQDF solenoid valve series solenoid valve products can be widely used in production and scientific research departments such as textiles, printing and dyeing, chemicals, plastics, rubber, pharmaceuticals, food, building materials, machinery, electrical appliances, and surface treatment, as well as in people's daily life facilities such as bathrooms, canteens, and air conditioners. . ZQDF solenoid valve series are mainly used for the control of air, steam, coal gas and other gaseous media; ZQDF-Y series are mainly used for tap water, distilled water, frozen brine, electroplating waste liquid and other liquid media, and also used for oil with viscosity less than 4°E kind.

ZQDF solenoid valve product features:
1.Corrosion resistance: The main components, valve plugs and valve bodies are made of stainless steel and cast steel, with good corrosion resistance.
2.Heat resistance: Electromagnetic and sealing parts are all made of special high temperature resistant electrical materials and sealing materials, and effective heat insulation measures are adopted.
3.Wear resistance: reasonable selection of materials, clever use of fluid lubrication between the valve plug and the valve body to reduce wear.
4.Condensation resistance: The cold north water of the steam pipe is an important factor that affects the action of the steam solenoid valve, and this valve is not affected by condensate water.

Structure and principle of ZQDF solenoid valve:

The ZQDF solenoid valve is a step-by-step direct pilot solenoid valve, which can be divided into a normally closed solenoid valve and a normally open solenoid valve according to the difference between the on and off states when the power is off. Normally closed solenoid valve. After the coil is energized, the armature first drives the valve plug of the auxiliary valve to lift under the electromagnetic force. The fluid on the main valve cup flows away through the auxiliary valve, reducing the pressure acting on the main valve cup. 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 due to its own weight. At the same time, depending on the medium pressure, the main and auxiliary valves can be closed tightly. Normally open solenoid valve. After the coil is energized, the moving iron core moves down due to the suction force. The valve plug of the auxiliary valve is pressed down, the auxiliary valve is closed, and the pressure in the main valve cup rises. 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 loses under the main valve cup, and the main valve seat is compressed and the valve is closed. When the coil is de-energized, the electromagnetic suction force is zero, the auxiliary valve plug and the supporting iron core are lifted up due to the action of the spring, the auxiliary valve opens, and the fluid on the main valve cup flows away through the auxiliary valve, reducing the effect on the main valve cup 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 opens, and the medium flows.

Main technical parameters of ZQDF steam solenoid valve:

ZQDF steam solenoid valve outline dimension and connection form table:

ZQDF solenoid valve use and maintenance:
1. It is recommended that the user unit send a special person to be responsible for use and maintenance.
2. After the solenoid valve is installed, it needs to pass in the medium for several experiments, and it can be put into formal use after confirming that it is normal.
3. The dirt on the inside and outside of the large valve and the suction surface should be cleaned regularly, and be careful not to damage the sealing surface.
4. When the solenoid valve is not used for a long time, the manual valve in front of the valve should be closed. When it is reactivated, the steam solenoid valve should drain the condensed water and make a trial operation several times. It can be put into use after the switch is normal.
5. When the solenoid valve is removed from the pipeline and not in use, the internal parts should be wiped clean and blown with compressed air for storage.
6. When using for a long time, if the seal between the piston and the valve seat is not good, the sealing surface of the piston can be ground again, and then ground with the valve seat.
7. When working, pay attention to the pressure gauges before and after the valve. The working pressure must not exceed the rated pressure, and the working pressure difference must be within the range of the rated pressure difference. When the working pressure exceeds the rated pressure or the working pressure difference exceeds the rated pressure difference, the solenoid valve should be stopped and the front and rear manual valves should be closed to prevent the solenoid valve from exploding and leaking.

Product Structure:

Packing & Delivery : 

Packing Details:all by seaworthy plywood case and packed strongly by packing belt as below
Delivery Details:Generally it is 5-10 days if the goods are in stock. or15-30 days if the goods are OEM or not
enough subject to the order quantity. But anyway, normally, we are able to make sure the delivery will not exceed 45days.