Page 6 of Industry and Engineering News form Power to Oil & Gas

Industry News

Construction of Ductile Iron Pipes in Winter or Rainy Season

Posted: 06/30/2020 15:12:31
Hits: 26

Winter Construction 1. Bottom of trench and sand cushion: The ductile iron pipe shall be covered tightly and compacted in time according to the temperature, to prevent the pipe from freezing. Keep...

Pipeline acceptance standards and correct procedures

Posted: 06/24/2020 23:27:33
Hits: 22

Pipeline engineering includes gas pipeline, water supply and drainage pipeline, air pipeline, etc. The construction quality of these pipelines directly affects our daily life and must be carefully checked...

The Importance of Stainless Steel Gate Valve in Production and Life

Posted: 06/17/2020 11:30:52
Hits: 24

Stainless steel gate valves are of great value in current industrial applications. So how does their application value represent? First of all, it is able to transport a variety of different media....

Introduction of Fully Welded Fixed Ball Valves for Gas

Posted: 06/11/2020 17:35:41
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A Brief Introduction to Fully Welded Fixed Ball Valves for Gas: Fully Welded ball valve is widely used in underground pipelines of city gas, natural gas transmission pipelines, pressure regulating stations...

Petrochemical special industrial valve applications

Posted: 05/26/2020 16:07:36
Hits: 28

Petrochemical special valve: In petrochemical special valves, the single-acting spool valve and double-acting spool valve in the catalytic cracking device are typical. The single-acting spool valve sends...

General purpose valve applications in the petrochemical industry

Posted: 05/26/2020 16:00:38
Hits: 25

Petrochemical refers to the production of gasoline, kerosene, diesel, lubricating oil and liquefied petroleum gas and other petroleum products using petroleum and natural gas as raw materials; the modern...

Globe ball gate butterfly check valve selection & setting location

Posted: 05/09/2020 16:05:19
Hits: 35

(1) The valves used in the water supply pipeline are generally selected according to the following principles: 1. When the pipe diameter is not more than 50mm, a globe valve should be used. When the pipe...

Design pressure and design temperature of pipeline

Posted: 03/10/2020 14:33:29
Hits: 1026

Principles for determining pipeline design pressure ① The design pressure of the pipeline must not be lower than the maximum working pressure. ② The design pressure of the pipeline equipped with the safety...

How to select, repair and calibrate safety valves in coal chemical system - part two

Posted: 10/10/2019 17:43:57
Hits: 44

Safety valve calibration On-line calibration and checker calibration are the two most commonly used calibration methods. According to the equipment conditions of the coal chemical plant, the type of medium,...

How to select, repair and calibrate safety valves in coal chemical system - part one

Posted: 10/10/2019 16:16:09
Hits: 39

Coal is chemically processed into gas, liquid and solid fuels and other chemical products. During the production process, the pressure of the medium in the equipment or pipeline rises due to operational...

The 14th Wenzhou (Jinying) Pump and Valve Exhibition 2019, PVPEW

Posted: 09/05/2019 13:07:19
Hits: 99

The 14th Wenzhou Pump and Valve Exhibition 2019 will be held in Yongjia, North China on October 25th. PVPEW, the 14th Wenzhou (Jinying) Pump and Valve Exhibition 2019 Exhibition period: October...

Manufacturing, installation and inspection of cryogenic valves

Posted: 07/02/2019 13:19:14
Hits: 521

Installation requirements for cryogenic valves Because of the special structure of the cryogenic valve, the installation of the cryogenic valve also has its special requirements. Because of the...

The basis for the correct selection of electric valve actuator

Posted: 04/17/2019 13:54:50
Hits: 43

The electric valve actuator is an indispensable device for realizing valve program control, automatic control and remote control. The movement process can be controlled by the stroke, torque or axial...

A Brief Introduction of Plug Valve

Posted: 04/11/2019 14:54:17
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1. Working principle of plug valves Plug valves are one of the most widely used valves for both on/off and throttling services. Their design is fairly simple. Plug valve is comprised...

Working environment and function requirements of electric valves

Posted: 04/10/2019 14:49:03
Hits: 18

In pipeline engineering, the correct selection of electrically operated valves is one of the guarantee conditions to meet the requirements of use. If the electric valve used is not properly selected,...

Selection and Ordering Information of Safety Valve

Posted: 04/03/2019 14:27:25
Hits: 35

Selection of safety valve type: 1. Determining valve type Conditions of Use Recommended Type of Safety Valve Flammable Gas, Toxic Gas, Refrigerant, Polluting Gas Closed Safety Valve Water Vapor,...

Notes on the use of the angle control valve

Posted: 03/27/2019 16:38:19
Hits: 37

The angle control valve is similar to the single seated valve on structure except that the valve body is angled. Its characteristics determine its simple flow path and low resistance, especially suitable...

Safety Valve: characteristics and categorization

Posted: 03/18/2019 17:43:29
Hits: 32

The safety valve is a valve type pressure relief device, which is mainly consistent of three parts: valve seat, disc and loading mechanism. The safety valve is an automatic valve that uses the pressure...

Causes and elimination measures of valve pipeline vibration

Posted: 03/12/2019 14:36:47
Hits: 31

The fundamental causes of the pipeline vibration of the unit system are the design, installation, operation and running of the unit. The pipeline vibration of the system directly reflects the mechanical...

Causes of the noise of the regulating valve and the solutions

Posted: 03/05/2019 18:37:07
Hits: 12

1) Elimination of resonance noise Only when the regulating valve resonates, is there energy superposition that produces a strong noise of more than 100 decibels. Some produce strong vibration with low...

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