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The characteristics of the valve to determine the main use of the performance and use of the characteristics of the characteristics of the valve to determine the installation, maintenance, maintenance and other methods of some structural characteristics
(Two characteristics of the valve)
The resistance coefficient of the gate valve is small, only in the range of 0.1 to 1.5; the gate valve with large diameter has a drag coefficient of 0.2 to 0.5; the resistance coefficient of the shrink gate valve is larger.
  The resistance coefficient of the shut-off valve is much larger than that of the gate valve, generally between 4 and 7.
  The Y-type stop valve (DC type) has the smallest resistance coefficient between 1.5 and 2.
  The resistance coefficient of the check valve depends on the structure: the swing check valve is usually about 0.8 to 2, and the drag coefficient of the multi-lobed check valve is large; the lift check valve has the largest drag coefficient, up to 12 .
The butterfly valve has a small drag coefficient, generally within 0.5.
The ball valve has the smallest drag coefficient, generally around 0.1.
The resistance coefficient of the above valve is the value of the valve in the fully open state.
(Knowledge of VALVES)

March 8th is International Women's Day. In order to express recognition and respect for women, Yingli Machinery is going out on this day every year to go to the strawberry garden to pick strawberries and eat strawberries for a relaxing day.

(Out door activities.)

Yingli Machinery is a company that pays great attention to the quality of life of its employees. Care about the lives of every employee outside of work.
  On the evening of March 23, an old employee of Yingli Machinery held a wedding banquet. The company's leaders and employees attended his wedding, and we were very happy about it. I hope that every employee of Yingli Machinery can find their own happiness.
(Employee wedding banquet.)

Recently, the General Office of the CPC Central Committee and the General Office of the State Council issued the “Guiding Opinions on Promoting the Healthy Development of Small and Medium-sized Enterprises”, which will further stabilize and enhance corporate confidence and expectations, increase innovation support, and enhance the professional development of SMEs. SMEs will be able to integrate the development level and promote the healthy development of SMEs.

  It is believed that Yingli Machinery will develop faster and more stable under the guidance of these governments. There will be more customers who know us and know our products.

(“Guiding Opinions on Promoting the Healthy Development of Small and Medium-sized Enterprises”)

Today is Black Friday, the last day of our company ’s Black Friday promotion week! Don't miss the offer, hurry up and place an order!
(Here comes Black Friday!)

 

 

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