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Industry News

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...

Harms caused by valve pipeline vibration

Posted: 03/04/2019 18:25:43
Hits: 25

In the rotating equipment and flowing medium, low-intensity mechanical vibration is unavoidable. The mechanical vibration of the rotating equipment is transmitted to the pipeline system through the system...

Brief introductions of a DBB Ball Valve and a DIB Ball Valve

Posted: 02/18/2019 16:55:41
Hits: 65

When it comes to the seat and sealing of a trunnion mounted ball valve, we often classify them into DBB and DIB type. People usually get really confused about how to differentiate a DBB ball valve from...

Why does steam need to be decompressed by a pressure relief valve?

Posted: 11/28/2018 11:08:39
Hits: 99

When the steam is transferred from the boiler to the steam point of equipment under high pressure condition, the pressure reduction control is usually carried out. Why does steam need to be decompressed?...

Valve buffer structure for reducing valve vibration and noise

Posted: 11/08/2018 12:20:37
Hits: 36

The valve controls and conveys the medium by the cooperation between the valve body and the valve disc. After the valve is closed, the pressure at the inlet end and the outlet end is different, and a...

The difference between a safety valve and relief valve

Posted: 09/15/2018 14:37:35
Hits: 75

Relief valves When the pressure in the pipeline is higher than the setting pressure of the relief valve, the oil will flow out from the valve, so that the pipeline pressure can be controlled without exceeding...

The working principle, characteristics and structure of gate valves

Posted: 06/01/2018 16:38:09
Hits: 585

Working principles and characteristics of gate valves A gate valve is also known as a sluice valve, and it is mainly composed of a valve body, a valve bonnet, a gate disc, a valve stem, a valve...

What Are the Knife Gate Valves? (Part Two)

Posted: 10/13/2017 14:21:42
Hits: 97

The knife gate valve with its sharp knife-shaped disc is used for liquids and gases with high density, and it was mainly applied to the paper industry at the very beginning. That is, this kind of gate...

What Are the Knife Gate Valves? (Part One)

Posted: 09/22/2017 15:31:05
Hits: 58

A knife gate valve has two sealing surfaces and adopts the gate as its disc. The gate moves in perpendicular to the direction of fluids. With the help of the knife-shaped gate able to cut off the fibrous...

What Are the Needle Valves? (Part Two)

Posted: 09/13/2017 09:10:41
Hits: 42

Needle valves have the capability of fine adjustments. Along the flow direction of media, these valves are operated to change the flow areas for blocking or regulating the flow. Nominal Pressure: PN2.5,...

What Are the Needle Valves? (Part One)

Posted: 09/09/2017 10:31:48
Hits: 30

All the valves are operated for cutting off fluids. According to various valve cores, valves can be divided into globe valves, gate valves, plug valves, ball valves, butterfly valves, needle valves, etc. ...

Why Sealing Surfaces of Forged Steel Ball Valves Are Damaged?

Posted: 08/26/2017 14:02:41
Hits: 27

Forged steel ball valves are mainly used for gas pipelines in urban areas, long-term petroleum pipelines and natural gas pipelines. The security, the weather resistance and the long-term working capability...

Outside Screw Stem Rising through Handwheel Type Gate Valves (Part Two)

Posted: 08/08/2017 08:45:44
Hits: 81

According to the position of the screw of the valve stem, the gate valve is divided into the outside screw stem rising through handwheel type gate valve and the inside screw non-rising stem type gate...

Outside Screw Stem Rising through Hand Wheel Type Gate Valves (Part One)

Posted: 07/31/2017 16:45:58
Hits: 915

The outside screw stem rising through hand wheel type gate valve An outside screw stem rising through hand wheel type gate valve adopts the structure that the nut of the valve stem is on the valve bonnet...

Differences in Applications between Plug Valves and Ball Valves

Posted: 06/17/2017 10:03:10
Hits: 1824

Plug-valve: Plug valves adopt cock bodies with through holes as their valve discs. The valve is opened and closed by the cock body rotating along with the valve stem. The small packless plug valve is...

Origin and Development of Plug Valves

Posted: 05/25/2017 08:51:32
Hits: 68

In the 230 B.C, the first description of three-way plug valves is noted in the Byzantine era. At that time, a three-way valve was is made of bamboos and had a wooden cork between two bamboo strips. ...

Identification of Seamless Steel Pipe

Posted: 04/24/2017 08:28:08
Hits: 62

A seamless steel pipe, a kind of long steel, has hollow section without seam. It is made from perforated tubular billets which are made of ingot steel or solid steel pipe and undergoes the process of...

Will Stainless Steel Sanitary Valves and Fittings Not Rust?

Posted: 03/09/2017 11:03:46
Hits: 70

Many people simply think that stainless steel will not rust, rust doesn't occur in stainless steel. Ordinary carbon steel reacts with oxygen in atmosphere, and forms oxide film on the metal surface....

The Installation Notes of Wafer Check Valve

Posted: 02/25/2017 09:45:54
Hits: 166

Wafer check valve is a universal one-way flow valve with light weight. It is easy to be installed between flanges. There are two semicircle spring fixed in the valve by pin. Spring deformation makes the...

Different Valve Body Materials Are Suitable For Different Working Conditions

Posted: 02/06/2017 10:57:09
Hits: 43

There are many different kinds of valve body materials suitable for a variety of different working conditions. Commonly used body material has the following nine categories: 1. Gray cast iron. It is suitable...

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