2W water solenoid valveIt is an industrial equipment controlled by electromagnetism, which is an automation basic element used to control fluid, with diversified functional structure, widely used in industry and manufacturing, this modelsolenoidsCapable of electrically controlling the on-off of fluid lines.

Difference between Normally Closed and Normally Open

General daily use of solenoid valves are divided into two major types of normally closed and normally open, normally closed solenoid valve means that the coil is not energized when the gas path is broken. Normally open type solenoid valve means that the coil is not energized when the gas path is open. Normally closed solenoid valve action principle: energize the coil, the gas path is connected, once the coil is de-energized, the gas path will be disconnected, which is equivalent to the point of action. Normally open type solenoid valve action principle: energize the coil, the gas path is open, once the coil is de-energized, the gas path will be open, which is also point action.

How to choose according to different job requirements

  • When the solenoid valve needs to be closed for a long period of time, and the time of closing is more than the time of opening should be selected normally closed type.
  • When the solenoid valve needs to be open for a long time, and the time of opening is more than the time of closing should be selected normally open type.
  • When you need to open for a long time and close for a long time at the same time, you should choose self-holding solenoid valves, also called normally open and normally closed solenoid valves.
  • However, some of the conditions used for safety protection, such as furnace, kiln flame detection, can not be selected normally open, should be selected for long-term energized type.

Installation Instructions

  • Keep the solenoid tube diameter mounted horizontally and the coil mounted vertically.
  • Outlet line with backflow needs to be installedcheck valvesThe
  • The medium must be clean and non-corrosive (water, compressed air can be passed through).

Product Parameters

产品型号

2W Series

阀体材质

黄铜

控制形式

常开/常闭

可选电压

AC220V/DC24V/DC12V

连接方式

内螺纹

公称压力

≤1.0Mpa

适用介质

水、压缩空气等

适用温度

≤80°C

Product Size Reference

型号

G

英寸

流量孔径

L

H

2W025-8

DN8

1/4

2.5mm

39

74

2W040-10

DN10

3/8

4mm

51

85

2W160-15

DN15

1/2

16mm

62

102

2W200-20

DN20

3/4

20mm

67

113

2W250-25

DN25

1

25mm

86

117

2W320-32

DN32

1-1/4

32mm

90

130

2W400-40

DN40

1-1/2

40mm

106

164

2W500-50

DN50

2

50mm

123

176

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