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17

2020-04

【Technical article】 Rules for selection of valves in water works

The valves are indispensable for the conventional water production process in water plant, such as raw water intake
10

2020-04

【Technical article】 Common materials and corresponding designations for valves

Commonly used valve material: The valve body, bonnet and gate (disc) are one of the main parts of the valve and bear medium pressure directly.
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...

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