SGV – Page 2 – Sangong Flow Control

April 5, 2019April 10, 2019

The market competitiveness of cast iron valves is further reduced？

With the acceleration of urbanization in China, domestic sewage treatment and municipal treatment facilities will also be developed on a large scale. As a necessary pipe and valve, it will welcome a broad market prospects.

Thanks to the strong support of the government, the production and application of plastic pipes in China has really begun to develop rapidly, and cast iron pipes have been replaced in some fields, such as: sanitary ware water tank fittings with water intake below water level (low water intake); leakage with water seal less than 5 cm, which is prohibited in all new construction projects and maintenance projects; cast iron drainage pipes with common sockets (manual sand turning rigid joint) Cast Iron Drainage Pipe; Galvanized Iron Sheet Outdoor Rainwater Pipe; Spiral Lifting Cast Iron Nozzle; Cast Iron Globe Valve. It is not allowed to be used in indoor parts of residential projects. Continue reading “The market competitiveness of cast iron valves is further reduced？”

March 25, 2019March 25, 2019

Technical Specifications for Valve Selection and Configuration

Valve Selection and Setting Position

(1) Valve Selection Principle for Water Supply Pipeline

1. When the pipe diameter is not more than 50 mm, globe valve should be used. When the pipe diameter is greater than 50 mm, gate valve and butterfly valve should be used.

Kinds of water valve,industrial valve list

2. When flow and water pressure need to be regulated, adjusting valves and globe valves should be adopted.

Continue reading “Technical Specifications for Valve Selection and Configuration”

March 22, 2019March 25, 2019

Is Valve quality the reason of China chemical EXPLOSION: Yancheng chemical factory In March 21th

As Valve supplier, an occupation habit, each accident /explosion showed in media, we can’t help wondering whether it is caused by valve quality problems? Although the probability is not necessarily very high. We will constantly remind ourselves to concentrate on improving valve quality and take this as a precaution.

44 killed, at least 90 people were seriously injured in the explosion at the Jiangsu Tianjiayi Chemical Co., the state-run China News Service said Friday, and 32 of them were critically ill. Videos circulating online showed people who appeared to have been cut by glass and other debris, eastern China’s Jiangsu province on 2019 Thursday (March 21) afternoon.

Explosion-in-China-yancheng-chemical-plant-Footage showed people lying on the ground

Continue reading “Is Valve quality the reason of China chemical EXPLOSION: Yancheng chemical factory In March 21th”

March 15, 2019March 19, 2019

Valve part-Rubber factory-Visit

To improve valve quality and strength relation with supplier, Last week we visit and assess valve parts-rubber factory, huami rubber technology , Well equipped and certified : ISO9001 ISO14001 IATF16949 by TUV , OHSAS18001 BY BS and other china Military certification, industry qualification. Have many application for most main china automobile factory and CRRC （china high speed train）and other high end Military industry.

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February 28, 2019March 25, 2019

Feature and Function of Plug /Cock valve, safety valve, steam trap, pressure relief valve, check valve

5. Cock Valve

It refers to a kind of valve whose closing parts are plunger-shaped rotary valves. The opening or closing of the valve can be realized by 90 degree rotation to make the opening on the valve plug and the opening on the valve body open or separate. The shape of the valve plug can be cylindrical or conical. Its principle is basically similar to that of ball valves. Ball valves are developed on the basis of cock valves. They are mainly used in oil field exploitation and petrochemical industry.

invert pressure balance oil Lubricated APIplug valve 300LB

Continue reading “Feature and Function of Plug /Cock valve, safety valve, steam trap, pressure relief valve, check valve”

February 27, 2019March 25, 2019

Advantages and Disadvantages of Globe Valves

Globe Valve

Valve refers to a valve whose closure (disc) moves along the center line of the seat. According to the movement of the disc, the change of the seat opening is proportional to the disc travel. Because the stem opening or closing stroke of this kind of valve is relatively short, and has a very reliable cut-off function, and because the change of the seat opening is proportional to the disc travel, it is very suitable for flow regulation. Therefore, this type of valve is very flexible for cutting or regulating and throttling.

Continue reading “Advantages and Disadvantages of Globe Valves”

February 26, 2019March 25, 2019

Advantages and Disadvantages of Butterfly Valves

Butterfly valve

Butterfly valve is a kind of valve that opens, closes and regulates fluid passage by reciprocating about 90 degrees of disc-type opening and closing parts.

Advantage:

It is simple in structure, small in volume, light in weight and low in consumables. It is not used in large caliber valves.

Pneumatic actutaer Metal seated butterfly valve Stainless steel 316TI-150LB-8″

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February 25, 2019March 26, 2019

Advantages and Disadvantages of Ball Valves

Ball valve

The ball valve is evolved from the cock valve. Its opening and closing part is a sphere, which rotates 90 degrees around the axis of the valve stem to achieve the purpose of opening and closing. Ball valve is mainly used to cut off, distribute and change the direction of medium flow in pipeline. The ball valve with V-shaped opening also has good flow regulation function.

Continue reading “Advantages and Disadvantages of Ball Valves”

February 23, 2019March 25, 2019

Advantages and Disadvantages of Gate Valves

Gate valve refers to the valve whose closing part (gate) moves vertically along the axis of the passage. It is mainly used as cutting medium in the pipeline, i.e. fully open or fully closed. Generally, gate valve can not be used as flow regulation. It can be applied to low temperature pressure can also be applied to high temperature and high pressure, and according to the different material of the valve. But gate valves are generally not used in pipelines for conveying mud and other media.

Water DIN-f4 softseat EPDM-Non Rising stem gate valve

Continue reading “Advantages and Disadvantages of Gate Valves”

February 22, 2019February 25, 2019

Shanxi discovered 2.437 billion tons of coal resources last year

Reporters recently learned from the Shanxi Provincial Department of Natural Resources that the province has vigorously implemented geological prospecting operations in recent years. Last year, 2.437 billion tons of coal resources were newly discovered, far exceeding the same period of coal production.

Coal, known as black gold and industrial food, has been one of the main energy sources used in the human world since the eighteenth century.
Coal is the most widely distributed fossil energy resource in the world, which is mainly divided into bituminous coal and anthracite, subbituminous coal and lignite.Coal is widely used. According to its purpose, it can be summarized as three main uses: power coal, coking coal and coal for chemical industry, mainly including gasification coal, low temperature dry distillation coal and hydroliquefaction coal.

Shanxi is known as “Coal Sea”. According to estimates, the coal-bearing area of Shanxi Province is 57,000 square kilometers, Continue reading “Shanxi discovered 2.437 billion tons of coal resources last year”