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03

2020-04

【Industry trends】 Trillions of "new infrastructure" is coming, and the demand for pump valve equipment is expected to meet blowout in the second and third quarter.

On March 4, 2020, the Standing Committee of the Political Bureau of the Central Committee held a meeting and proposed to increase investment in public health services
27

2020-03

【Technical article】 How is the valve routinely maintained?It's not a good idea to read all this.

Leakage of valve body and bonnet: Causes: 1. Low casting quality of cast iron, defects of sand eyelet, loose structure and slag inclusion on valve body and bonnet body 2. Freezing cracking within days;
20

2020-03

【Industry trends】 Abolition of 5 national standards such as GB/T 28001-2011 Requirements for Occupational Health and Safety Management System

According to the National Standard Information Public Service Platform, five national standards were abolished on March 7, 2020
13

2020-03

【Technical article】 Structure and principle of high performance butterfly valve

High performance rubber liner butterfly valve is a well-structured butterfly valve, which is especially suitable for regulating or switching the flow and pressure of various tap water...
07

2020-01

【Industry trends】 What to say about valve sealing

Valve is an important component in the pipeline system of petrochemical plant. It is one of the main leakage sources in the plant because of its variety and quantity...
28

2019-12

【Industry trends】 No negative pressure water supply check valve function

In the complete set of water supply equipment, whether no negative pressure water supply equipment or variable frequency constant pressure water supply equipment...
21

2019-12

【Industry trends】 Status analysis of water treatment industry: most water treatment enterprises are small in scale
14

2019-12

【Technical article】 Valve operating procedures

1. The handwheel and handle of manual valve are designed according to the hand force of ordinary people, considering the strength of sealing surface and necessary closing force...
07

2019-12

【Technical article】 The corresponding method is adopted to control the deformation in a small range as far as possible

Heat treatment technology is an important means to obtain good properties of various metal materials.In many practical applications, reasonable selection of materials and various forming processes can not meet the mechanical properties...
30

2019-11

【Industry trends】 The development of intelligent casting has a new demand for casting talents

According to incomplete statistics, the number of enterprises lacking smelting workers, molding workers, engineers,quality control and management personnel in China's foundry industry is about 58%, 20%, 50%, 34%...

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