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Shock Resistance of Nuclear Grade Electric Gate Valves (Part Two)

Shock Resistance of Nuclear Grade Electric Gate Valves (Part Two)

  • Jun 07, 2022
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5. Static analysis 5.1 Boundary condition setting In the process of static analysis, the inlet and outlet of the gate valve are set as fixed constraints, and the load is applied to the gate valve system...

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Shock Resistance of Nuclear Grade Electric Gate Valves (Part One)

Shock Resistance of Nuclear Grade Electric Gate Valves (Part One)

  • May 26, 2022
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To study the shock resistance of nuclear-grade electric gate valves, a finite element model of the nuclear-grade electric gate valve under the combined action of design pressure, temperatures and design...

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Application of Cemented Carbide Hardfacing Technology to Various Fields

Application of Cemented Carbide Hardfacing Technology to Various Fields

  • May 16, 2022
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Hardfacing is the process of hardening the surface of wear-resistant parts. In the production and processing of cemented carbide, hardfacing technology is often used. Cemented carbide hardfacing technology...

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The Problems Occurring in Valve Clacks of Safety Valves

The Problems Occurring in Valve Clacks of Safety Valves

  • Apr 21, 2022
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Safety valve discs are not stable. The valve disc frequently pops or flutters. Frequently popping refers to the fact that after the safety valve gets back on its seats, it will open again after the pressure...

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Stainless Steel 304 and 304L Used for Vavles

Stainless Steel 304 and 304L Used for Vavles

  • Apr 08, 2022
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1. What is stainless steel? Stainless steel is a type of steel. Steel refers to steel containing less than 2% of carbon, and steel with a carbon contect of more than 2% is iron. The addition of chromium...

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Mechanical Traps

Mechanical Traps

  • Mar 29, 2022
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The mechanical traps use the density difference between the condensed water and the steam, and through the change of the condensed water level, the float lifts and drives the disc of the valve to...

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Abnormal Opening & Closing and Leakages of Safety Valves

Abnormal Opening & Closing and Leakages of Safety Valves

  • Mar 07, 2022
  • Hits: 15

Opening and closing over set pressure means that the equipment is opened or closed over its set pressure. In this case, the overload protection function of the safety valve loses, and the reasons...

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Methods and Inspection of Non-destructive Inspection after Welding Repair of Valves

Methods and Inspection of Non-destructive Inspection after Welding Repair of Valves

  • Feb 27, 2022
  • Hits: 24

In the forging process of valves, there will occasionally be defects such as gas holes, porosity, and impurities, which affect the normal use of the castings, and are usually repaired by welding....

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Common Materials for Valve Bodies and Their Heat Treatments

Common Materials for Valve Bodies and Their Heat Treatments

  • Feb 10, 2022
  • Hits: 25

The commonly used materials for valve bodies are as follows: 1. Gray cast iron: it is suitable for low-pressure valves with working temperatures between -15℃ and +200℃ and nominal pressure...

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Common Materials Used for Valve Housings

Common Materials Used for Valve Housings

  • Jan 25, 2022
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Common materials used for valve housings Common housings materials for valves Standards Applicable temperature/℃ Applicable pressure/MPa Applicable media Gray cast iron   -15 to...

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