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Fault analysis of automatic drain valve for self-cleaning filter

Fault analysis of automatic drain valve for self-cleaning filter

  • Categories:Industry News
  • Author:
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  • Time of issue:2018-10-27 18:04
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(Summary description)As a self-cleaning filter, the automatic drain valve automatically removes impurities after cleaning the filter. It plays a very important role in ensuring the stable operation of the self-cleaning fi

Fault analysis of automatic drain valve for self-cleaning filter

(Summary description)As a self-cleaning filter, the automatic drain valve automatically removes impurities after cleaning the filter. It plays a very important role in ensuring the stable operation of the self-cleaning fi

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2018-10-27 18:04
  • Views:
Information
As a self-cleaning filter, the automatic drain valve automatically removes impurities after cleaning the filter. It plays a very important role in ensuring the stable operation of the self-cleaning filter. Self-cleaning filters for automatic blowdown valves are generally available with electric ball valves, electric butterfly valves, solenoid valves, hydraulic solenoid valves and other types of valves. Some users often use the self-cleaning filter in the process of cleaning the filter. The following types of problems often occur. Let's analyze them one by one.
 
After the filter was used for a while, it was found that the automatic drain valve leaked or did not move.
 
Cause Analysis:
 
1. When using ordinary solenoid valve, because the domestic solenoid valve is generally a pilot-type solenoid valve, the pilot hole is a non-small hole (0.3-2mm), and the water passing through the drain valve is generally sewage containing a large amount of impurities, the pilot The hole is easily blocked by these impurities, and once the pilot hole is blocked, the diaphragm of the solenoid valve is not closed, resulting in leakage of the drain valve. The electromagnetic coil of the domestic solenoid valve generally has a relatively large power (more than three times that of the foreign equivalent product). The large power means that the heat is large, and the heat generation affects the life of the electromagnetic coil. This is why the failure rate of the domestic common electromagnetic valve is used. High reason.
 
2. When using the electric ball valve: As we all know, the valve core of the electric ball valve is a rotating stainless steel ball, which is rotated by the actuator to achieve the effect of opening and closing the valve. If there are many metal impurities and sand particles in the system, these impurities are easily blocked. Between the inner wall of the valve and the spool, the spool is not in place or worn, causing the electric ball valve to leak.
 
3. In order to save cost, some manufacturers use electric butterfly valve as the sewage valve. When the water quality of the water system is relatively poor, the frequency of self-cleaning filter cleaning and sewage discharge is relatively high, the sealing of the electric butterfly valve is extremely easy to wear, affecting the closing of the valve. Sex, which causes water leakage.
 
As the leading enterprise in the self-cleaning filter industry, Dolling Environmental Protection adheres to the business philosophy of “Quality in the gold medal and the model in the industry”. It is the first automatic cleaning valve on the self-cleaning filter to select the Israeli imported Dorothy electromagnetic diaphragm valve as the filter. , Dorothy electromagnetic diaphragm valve has the advantages of low power consumption, compact shape, stable and reliable action. Due to the structure of the diaphragm valve, there is no problem that the common solenoid valve pilot hole is blocked by impurities. The valve body itself has a filter cleaning system, and has manual, automatic and closed functions, thereby ensuring continuity and stability under severe working conditions. Sex.
 

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