Common Faults of Cast Steel Ball Valves

Cast steel ball valve has compact structure, reliable sealing, simple structure, easy maintenance, sealing surface and the ball is often closed state, not easily eroded by the media, easy to operate and repair. It is suitable for general working medium such as water, solvent, acid and natural gas. It is mainly used for cutting or turning on the medium in the pipeline, and can also be used for fluid regulation and control. After using for a long time, cast steel ball valve will appear poor fluid phenomenon, what is the reason for this? 

There are two main reasons. 

1, cast steel ball valve shell in the phenomenon of ice, resulting in a great resistance to the fluid, so that the fluid can not be completely passed.

2, cast steel ball more dirt, local blocking phenomenon.

 

Butterfly Valve Installation And Maintenance

The butterfly valve also known as flap valve, is one kind of control valves with a simple structure, can be used for low-pressure pipe media switch control, the valve can be used to control the air, water, steam, corrosive media, mud, oil, liquid metal and radioactive media and other types of fluid flow. In the pipeline the main cut off and throttling effect. Butterfly valve opening and closing parts is a disc-shaped disc, in the valve body to rotate around its own axis, so as to achieve the purpose of opening or closing or adjustment.

During installation, the valve flap should stop at the closed position. The opening position should be determined according to the rotation angle of the butterfly plate. 

A butterfly valve with a bypass valve should be opened the bypass valve. Should be installed according to the manufacturer's installation instructions, for heavy butterfly valve, should be set up a solid foundation.

Taiwanese Trade Groups Visit to The Yuanda Valve Group

May 19, more than 30 well-known entrepreneurs from Taiwan visited Yuanda Valve Group. Xingtai Municipal Committee United Front Department Deputy Minister, Taiwan Affairs Office Director Guo Haiping, Provincial Office of the Deputy Director of Economic Affairs Li Kai, the county leaders Li Guoying, Dong Peng, accompanied the expedition.

Yan Guoan, general manager of the Great Valve Group, met with the delegation and held a discussion with the relevant leaders and entrepreneurs. They visited the Great Exhibition Hall, the new American standard workshop, stainless steel processing workshop and cast steel integrated machining area. The delegation expressed its appreciation for Yuanda Valve Group, recognized the quality of the valve production, especially hot products gate valve, globe valve and butterfly valve.

The Main Classification of Stainless Steel Check Valves

The opening and closing of the medium by the medium flow and the force to open or close itself to prevent the medium back valve called stainless steel check valve. Stainless steel check valve is an automatic valve, mainly for the media on the one-way flow of the pipeline, only to allow the media to flow in one direction to prevent accidents. Stainless steel check valve structure is reasonable, simple operation, high efficiency.

Stainless steel check valve is divided into five kinds, rotary stainless steel check valve, lift stainless steel check valve, disc stainless steel check valve, pipe stainless steel check valve, pressed stainless steel check valve.