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Industry News

Surface Cracks of Small Diameter Stainless Steel Seamless Pipes

Posted: 11/21/2022 17:36:29
Hits: 136

Surface crack defects have a great influence on the quality of stainless steel seamless pipe in the manufacturing process and the use safety after delivery, which is an unacceptable defect. Therefore,...

Routine Maintenance and Fault Analysis of Pipeline

Posted: 10/31/2022 21:47:41
Hits: 18

A pressure pipeline is a common equipment for conveying liquid and gas, which is widely used in production and life. A pressure pipeline exerts a certain pressure on the material in the pipeline to realize...

Analysis and Solution of Valve Failure Mode

Posted: 10/31/2022 20:35:32
Hits: 192

The valve is the control component in the fluid conveying system, which has the functions of stopping and dredging the fluid, adjusting the flow, dredging, checking, stabilizing the pressure, dispersing...

Hydrodynamic Experiment of Large-scale Hydraulic Butterfly Valves

Posted: 10/28/2022 16:13:32
Hits: 34

The butterfly valve is installed at the front side of the unit, which not only serves to cut off the water flow in the normal maintenance stage but also ensures that the dynamic water flow is cut off...

Quality Requirements and Control of API Flat Gate Valves

Posted: 10/26/2022 15:58:24
Hits: 15

As one of the important pieces of equipment in API Spec 6 A "Specification for Wellhead Equipment and Christmas Tree Equipment", the flat gate valve is mainly used in working conditions with...

Air Inlet Penetration of Two-way Check Valves

Posted: 10/25/2022 13:27:15
Hits: 8

During the operation of CRH3 and CRH5 platform EMUs, several times, when the initial lift bow sends power, the braking of individual vehicles fails to relieve the fault, and it is found that the indirect...

Repair and Maintenance of High-pressure "Y" Globe Valves

Posted: 10/22/2022 20:21:31
Hits: 16

Application and characteristics of "Y" globe valves A y-type globe valve is widely used, belonging to the cut-off valve, which consists of a valve seat, valve disc, valve stem, valve...

Operation and Management of Valves in Urban Water Supply Network

Posted: 09/30/2022 11:34:15
Hits: 30

Background The pipeline management office of Nanjing Water Group Co., Ltd. is mainly responsible for the maintenance of more than 5,000 kilometers of water supply pipelines and more than 90,000...

Common Faults and Maintenance of Valves

Posted: 09/28/2022 11:30:59
Hits: 166

By analyzing the causes of valve failures and adopting corresponding treatment and improvement methods, the failure rate of the valve can be greatly reduced, and the utilization rate of the valve can...

The Selection and Maintenance of Chemical System Valves

Posted: 09/26/2022 11:11:32
Hits: 11

Characteristics of the valve As a pipeline device, valves have three characteristics: service characteristics, structural characteristics and driving characteristics. Usage characteristics:...

Delayed Opening Action of Pneumatic Butterfly Valves

Posted: 08/27/2022 20:40:07
Hits: 52

In a nuclear power plant, the pneumatic butterfly valve fails to open many times during the operation of the unit (the operation specification requires the opening time of the valve to be ≤120 s)....

LNG Cryogenic Butterfly Valves

Posted: 08/26/2022 19:08:08
Hits: 37

Liquefied natural gas (LNG) receiving station is an important part of China's LNG storage and transportation equipment system, and the cryogenic butterfly valve is the key equipment to ensure the...

Why We Set Valve in This Way?

Posted: 07/31/2022 21:54:41
Hits: 19

This regulation applies to the setting of gate valves, globe valves, ball valves, butterfly valves and pressure-reducing valves in petrochemical plants. Check valves, safety valves, regulating valves...

Application of Small Electric Ball Valves

Posted: 07/31/2022 19:41:06
Hits: 15

With the rapid development of the offshore oil industry and the continuous expansion of oil reservoirs, unmanned platforms will be widely used in the Bohai Rim region. The overall size of such platforms...

Seal Leakage of Ball Valves Stem

Posted: 07/30/2022 23:25:22
Hits: 116

As a pressure pipeline component, the pipeline ball valve bears not only the pressure of the medium but also the pressure caused by its uncertain factors, such as the bending load caused by unbalanced...

Medium Flow in High-Temperature Wear-resistant Ball Valves

Posted: 07/29/2022 15:38:43
Hits: 16

The ball valve is widely used in various energy transmission systems as a regulating component to control the flow rate and make and break the pipeline system. When the ball valve is applied to the harsh...

Inspection of Pipe Fittings for Oil and Gas Transportation

Posted: 06/30/2022 23:15:58
Hits: 68

Pipe fittings, as the parts that play the roles of direction change, connection, diversion, sealing, control and support in pipeline system engineering, play an important role in pipeline engineering...

Valves with Coal Water Slurry Gasification Device

Posted: 06/30/2022 23:03:05
Hits: 27

Coal water slurry gasification technology is one of the most advanced entrained-flow coal gasification technologies in the world, which will provide key technologies for the development of coal liquefaction,...

Commonly Used Terms of Valves (II)

Posted: 06/30/2022 21:10:53
Hits: 7

51. The absolute error It refers that the absolute error measurement results minus the measured (agreed) true value. 52. Relative error The absolute error is divided by the measured...

Commonly Used Terms of Valves (Part One)

Posted: 06/30/2022 21:06:30
Hits: 8

The instrument is responsible for the measurement, monitoring and control of the whole factory, and tells us the operation of each device all the time. The instrument and control post guarantee the normal...

Valves (929)

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