Two position two way solenoid valve
Jun 08, 2021
Two position two-way solenoid valve is an automatic basic component used to control the direction of fluid, belonging to the actuator; It is usually used for mechanical control and industrial valves to control the medium direction, so as to achieve the control of valve switch.

1. We want to order DF series solenoid valve with flow diameter of 50 mm, nozzle diameter of G2 ", standard voltage of AC220 V, normally closed and manual device. The correct order code is df-50 AC220V.
2. We want to order DF series solenoid valve with flow diameter of 200 mm, flange connection, standard voltage of DC24 V, normally open. The correct order code is df-200f-k DC24 v.
If the fluid cleanliness is not high, especially when there are particles and ribbons mixed in, a filter should be installed in front of the valve
working principle
Function: control the direction of pipeline medium, so as to achieve the control of valve switch.
Applicable media: water, steam, oil, gas, air, kerosene, gasoline, diesel and other media.
Application: chemical, petrochemical, petroleum, paper, mining, electric power, liquefied gas, food, pharmaceutical, water supply and drainage, municipal, mechanical equipment, electronic industry, urban construction and other fields.
Normally open and normally closed solenoid valves:
Normally open type: it is closed under the condition of power on, which is suitable for the pipeline condition with less closing times and constant medium;
Normally closed type: open under the condition of power on, suitable for the working condition with less opening times and no need of frequent medium flow.
Installation precautions:
(1) During installation, the arrow on the valve body should be consistent with the flow direction of the medium;
(2) It should not be installed in the place with direct dripping or splashing water, and the solenoid valve should be installed vertically upward.
(3) The solenoid valve shall work normally within the fluctuation range of 15% - 10% of the rated voltage.
(4) After the solenoid valve is installed, there shall be no reverse pressure difference in the pipeline. It needs to be electrified several times to make it warm before it can be put into use.
(5) The pipeline should be cleaned thoroughly before installing the solenoid valve. The medium should be free of impurities. A filter is installed in front of the valve.
(6) When the solenoid valve breaks down or is cleaned, a bypass device shall be installed to ensure the continuous operation of the system.






