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22

2019-06

【Technical service】 Comparison table of the relationship between valve size and medium velocity

It is well known that the flow rate and velocity of the valve mainly depends on the size of the valve, but also with the valve structure type of the resistance to the medium...
15

2019-06

【Technical service】 Selection design and application of ball valve for submarine pipeline

With the rapid development of offshore oil and gas industry technology and people's demand for energy, the development of deepwater oil and gas fields will become the future offshore oil industryThe focus of industry development...
03

2019-06

【Industry trends】 Overseas manufacturing license for pressure pipe components (pipes and valves) was held in Shanghai

On May 23, the overseas inspection and evaluation department of China special equipment inspection and research institute held the first overseas manufacturing license seminar for pressure pipe components (pipes and valves) in Shanghai...
11

2019-05

【Industry trends】 Cold test is not the first pass of "physical examination" for "cold" nuclear power plant

Recently, the Cold-state function test of Fuqing Unit 5, the world's first demonstration project of Hualong No. 1, has been successful. As China's third generation nuclear power with fully independent intellectual property rights...
16

2019-04

【Technical service】 Slurry pump common fault solution

First of all, the power supply should be checked: joint connection is reliable; Whether the switch contact is tight; Whether the fuse is blown; Whether the three-phase power supply ...
04

2019-04

【Industry trends】 The third standing council (extended) meeting of the seventh session of valve branch of China general machinery industry association was held in hangzhou

On the afternoon of March 27, 2019, the third executive director (extended) meeting of valve branch of China general machinery industry association was held in hangzhou.Huang...
19

2019-01

【Technical service】 Common Faults and Maintenance Strategies of Valves

First, external damage is caused by material defects. The manufacturing process of valves is very complicated. If the valve produces blowhole or slag inclusion during casting, these defects may expand and cause damage, resulting in fluid leakage.
12

2019-01

【Industry trends】 Do you know the type and pressure grade of flange and sealing surface?

Flange sealing surface type introduced flange sealing surface according to the working condition, medium, pressure, specifications, temperature and other conditions, so the type of choice is not the same.
05

2019-01

【Industry trends】 Characteristics of Valve Manufacturing Technology

Compared with other mechanical manufacturing processes, valve manufacturing process has the following characteristics.
30

2018-12

【Technical service】 The key valve of the large-diameter pressure regulating device and the anti-surge valve of the compressor successfully passed the national new product appraisal

Recently, the China Machinery Industry Federation and China General Machinery Industry Association, entrusted by the State Energy Administration, hosted the "New Product Appraisal Meeting of Key Valves and Compressor Anti-surge Valves for ...

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