Phone：15313179336

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北阀集团北京阀门有限公司

BEIFA GROUP BEIJING VALVE CO., LTD

Beifang Group is located in the central area of the supporting area of Beijing Economic and Technological Development Zone. From the beginning of his business, the company’s chairman Hong Yixiang has adopted the "Twenty-One Principles" of "product quality as the foundation, technological innovation as the driving force, and heartfelt service as the guarantee" as an enterprise. The core concept of development leads a group of vigorous Beifan people to ride the wind and waves, and move forward courageously! After more than 30 years, North Valve Group has now developed into a "new type" with nearly 1,000 employees, a total area of 67,200 square meters, and a total asset value of 267 million yuan. The valve R&D, production and sales are led by exquisite casting skills. High-tech enterprise" group.

The group's subsidiary companies such as Beijing Valve Co., Ltd., Fujian Valve Co., Ltd., Henan Luoyang Yisheng Casting Co., Ltd., Gu'an Valve Co., Ltd., Beijing Soxuntong Information Technology Co., Ltd., Beijing Chaoda Bellows Manufacturing Co., Ltd., etc. Subsidiary.

  • 67200

    ㎡

    Total area of 67,200 square meters

  • 2.67

    100 million yuan

    Total assets value of 267 million yuan

  • 1000

    +

    More than 1,000 employees

Product Center

Product quality is the foundation, technological innovation is the driving force, and dedicated service is the guarantee

Butterfly Valve

Butterfly Valve

Globe Valve

Globe Valve

Ball Valve

Ball Valve

Small Valve

Small Valve

Gate Valve

Gate Valve

Needle Valve

Needle Valve

Check Valve

Check Valve

PARTNER

PARTNER

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News Center

Product quality is the foundation, technological innovation is the driving force, and dedicated service is the guarantee

The structure of the butterfly valve and the problems in the use process

2020

01 23

The structure of the butterfly valve and the problems in the use process
As a component used to realize the on-off and flow control of the pipeline system, the butterfly valve has been extremely widely used in many fields such as petroleum, chemical industry, metallurgy, and hydropower. In the well-known butterfly valve technology, its sealing form mostly adopts a sealing structure, and the sealing material is rubber, polytetrafluoroethylene, etc. Due to the limitation of structural characteristics, it is not suitable for industries such as high temperature resistance, high pressure resistance, corrosion resistance, and wear resistance.
Treatment of Deflection and Deformation of Large Butterfly Valve Guide

2020

01 19

Treatment of Deflection and Deformation of Large Butterfly Valve Guide
In order to solve the gap between the main and auxiliary butterfly plates of the water intake valve, the deflection of the four guide posts must be eliminated. The water intake valve is installed inside the dam body, and there is no working platform in the valve chamber, and the site does not have the conditions for replacement and hot riveting to assemble the guide post. Since the deflection angle of the guide column is very small and there is no crack in the column body, the method of grinding the part of the guide column that deviates from the normal contour instead of dealing with the part of the normal contour is used to deal with the deflection and deformation defects of the guide column.
Analysis of Motion Characteristics of Joint Grinding of Sealing Surface of Triple Eccentric Butterfly Valve

2020

01 18

Analysis of Motion Characteristics of Joint Grinding of Sealing Surface of Triple Eccentric Butterfly Valve
The following is a list of four grinding methods for sealing surface forming, as shown in Figure 1. It can be seen from the figure that the four grinding motion processes have their own characteristics. Figure 1a shows the use of a shaped grinding wheel. The surface of the grinding wheel completely covers the grinding track. The grinding process involves lateral feed while the grinding wheel rotates. Figure 1b also uses a shaped grinding wheel. The grinding wheel surface is slightly larger than the width of the valve body sealing surface. The grinding process is a rotating movement of the grinding wheel, while moving up and down along the conical generatrix of the sealing surface (angle interpolation) and lateral feeding. Figure 1c shows the use of a traditional parallel grinding wheel, the spindle of the grinding wheel rotates at a certain angle (the sealing surface is parallel to the conical generatrix), the grinding wheel surface covers the grinding track, the grinding process is the rotation of the grinding wheel, and the transverse feed is carried out.
Structural characteristics of elastic metal hard seal butterfly valve

2020

01 17

Structural characteristics of elastic metal hard seal butterfly valve
The disadvantage of the rubber seal butterfly valve is that when it is used for throttling, cavitation will occur due to improper use, which will cause the rubber seat to peel off and damage. For this reason, metal-sealed butterfly valves are now being developed internationally to reduce the cavitation zone. In Japan, comb-shaped butterfly valves with cavitation resistance, low vibration and low noise have also been developed in recent years. In recent years, my country has also developed metal sealing butterfly valves, and elastic metal sealing butterfly valves are national key new products. The high-performance elastic metal sealing butterfly valve adopts a double eccentric and a special oblique cone elliptical sealing structure, which solves the problem of opening and closing of the traditional eccentric butterfly valve.

About Us

Group Profile
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Culture
Environment
Development History
Cooperative Partner

Product

Butterfly Valve
Globe Valve
Ball Valve
Small Valve
Gate Valve
Needle Valve
Check Valve

Cases

Petroleum Refining And Chemical Sector
Thermal Power, Nuclear Power, High Temperature And High Pressure
Natural Gas Transportation, Lng And Low Temperature Refining
Building, Water System And Circulating Water System Plate
Municipal And Thermal Sectors
Military Industry, Aerospace And Shipbuilding
General Valve Plate

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