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04

2018-08

【Industry trends】 More and more trapped in the pinduoduo crisis valve enterprises should not step into the minefield

The ethylene glycol unit No. 2 of the Shanghai Petrochemical Department, through optimizing production...
28

2018-07

【Technical service】 Analysis of Causes of Combustion Explosion of Several Common Oxygen Pipes and Valves

Over the years, with the increase in the amount of oxygen, large oxygen users have used oxygen pipelines. Due to the long length of the pipeline, the distribution is wide, plus...
14

2018-07

【Technical service】 Effects of valve leakage and countermeasures

1. Leakage of valve body: reason: 1. There are sand holes or cracks in the valve body; 2. Crack treatment during valve body rewelding: 1. Polish the suspected crack and soak it with...
21

2018-07

【Technical service】 Automatic standard maintenance room control system

Automatic standard curing room automatic control system of standard curing room control system the main technical indicators point temperature control error...
06

2018-07

【Industry trends】 The cottage not only lacks innovation, but also affects the sustainable development of the valve

After decades of development, China's valve industry has developed thousands of valve manufacturers. Although the number is large...
30

2018-06

【Technical service】 Correct operation valve detailed method explanation, worth collecting!

The valve is in the fluid system, is used to control the direction of the fluid, pressure, flow of the device is to make the piping and equipment...
23

2018-06

【Industry trends】 What kind of stainless steel? Which of the 301,304,321 valves are used more?

Stainless steel is an abbreviation for stainless acid resistant steel. It is resistant to air, steam, water and other weakly corrosive media or stainless steel.
16

2018-06

【Industry trends】 4 valve industry standards and 1 water metering technical specification approved

Recently, the Ministry of Industry and Information Technology released Document No. 23 of 2018, approving 594 industry standards and 63 industrial measurement technical specifications. Among them, the four valve industry...
06

2018-06

【Industry trends】 Meaning of De, DN, D, d

First, DN (Nominal Diameter) means the nominal diameter of the pipe, which is the average of the outside diameter and inside diameter. The value of DN = value of De - 0.5 * tube wall thickness. Note: This is ...
31

2018-05

【Technical service】 Valve leakage causes and treatment methods

If the leakage of the valve beyond the rated range occurs in the sealing valve and valve seat part of the safety valve, the loss of the medium will occur and the sealing material...

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