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EM type electric directional valve

Product properties

  • Category:Directional valve
  • Product ID:1571628272
  • Views:0
  • Release date:2020-01-12
  • Product description

I.Conditions of Use

EM type electric directional valve is suitable for dry oil centralized lubrication system with a nominal pressure of 40M Pa. The pressure grease at the single line outlet of the dry thin oil lubrication pump is alternately sent through the main pipeline Ⅰ or Ⅱ to form a complete double Line terminal dry oil centralized lubrication system.

The reversing valve is an integrated reversing control device driven by a miniature AC motor and driving the eccentric link mechanism through a reduction gear to open and close the fuel supply pipeline or change the fuel supply direction; it is sensitive and sensitive, Quick opening and closing, reliable action, can be used in conjunction with the electric control box to automatically control the lubrication system.


II.Technical Parameters

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The medium used is a grease (NLGI 0 # ~ 3 #) with a penetration of not less than 220 (25 ° C, 150g) 1 / 10mm.


III.Working principle

EM type electric directional valve is mainly composed of motor, reduction mechanism, eccentric link mechanism, strong spring mechanism, two-position four-way valve, limit switch, pressure gauge and so on.

After the motor is decelerated by the worm gear, the eccentric wheel 2 drives the connecting rod 3 to make a linear reciprocating motion. Due to the action of the spring mechanism 4 linked to the end of the connecting rod, the sliding core rod 6 in the two-position four-way valve 5 has a rapid push-pull action, thereby changing the connection manner of the oil ports of the two-position four-way valve to achieve liquid flow The purpose of commutation. At this time, the eccentric rotates 180 ° to reach another dead point position, and the limit switch 7 is triggered. The limit switch can send out a pulse signal to stop the valve motor and complete a working process. A pressure gauge 8 is installed on the top of the protective cover 9 for monitoring the working pressure inside the valve.

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IV.Graphic symbol

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V.Dimensions

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VI.Circuit diagram and wiring diagram of EM reversing valve electric control box

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VII.Instructions for use

The valve should be installed at the front end of the main pipeline of the system, and it should be located in a place that is ventilated, dry, easy to inspect and free from interference of the surrounding movement mechanism. Before use, the outer cover must be opened to add 50 # mechanical oil to the specified liquid level.

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