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Valve components anticorrosion precautions

21

2025-02

Valve components anticorrosion precautions

1. Valve stem corrosion and protectionMain causes of valve stem corrosion:The corrosion damage of the valve body is mainly caused by the corrosive medium, and …

Method of judging internal leakage of natural gas ball valve

03

2025-01

Method of judging internal leakage of natural gas ball valve

​Fixed shaft ball valve is commonly used on natural gas pipelines, and its general inspection method is: turn the valve to the fully open or fully closed posi…

Valve performance testing

20

2024-12

Valve performance testing

1. Inspection of appearance and logoCheck content: whether the appearance of the valve has defects, such as cracks, bubbles, dents, etc. Check signage, namepla…

O-type ball valve and V-type ball valve difference

06

2024-12

O-type ball valve and V-type ball valve difference

​Ball valve has many kinds of structure, but basically the same little difference, are the opening and closing parts for the round ball core, mainly by the va…

Effective troubleshooting method after trap failure

22

2024-11

Effective troubleshooting method after trap failure

In the thermal system, the thermal trap plays a very important role, and its performance directly affects the stability and energy efficiency of the steam syst…

Changqing Oilfield: Light up

15

2024-11

Changqing Oilfield: Light up "Science and technology Tree" for winter supply "gas storage"

As of October 31, 1,750 Wells had been drilled and 997 Wells had been put into operation in the production capacity construction of the self-operating area of …

Harm and protection of abnormal pressure boost in gate valve

08

2024-11

Harm and protection of abnormal pressure boost in gate valve

​Gate valves usually have single gate, double gate, wedge, parallel and other structural designs

Valve sealing surface grinding is a key step to ensure sealing performance

01

2024-11

Valve sealing surface grinding is a key step to ensure sealing performance

The sealing performance of the valve directly affects the control effect of the fluid medium and the safe operation of the system, the grinding of the valve se…

Valve sealing surface material selection factors to consider

25

2024-10

Valve sealing surface material selection factors to consider

​Sealing surface is the most critical working face of the valve, the quality of the sealing surface directly affects the service life of the valve, and the ma…

Ultra-short radius horizontal well technology in Huabei oilfield to exploit the remaining oil at the far end

18

2024-10

Ultra-short radius horizontal well technology in Huabei oilfield to exploit the remaining oil at the far end

On September 19, the oil production plant No. 3 of Huabei Oilfield, which had been shut down for more than 4 years due to high water cut