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Huacheng Valve

Corporate CE/UL/FM/CSTB/WARS/Water Mark/UPC/ASSE/NSF/cscs/KS/KC/KGSAnd other foreignproduct crtfiation

EXPLORE

1

Huacheng Valve

Corporate CE/UL/FM/CSTB/WARS/Water Mark/UPC/ASSE/NSF/cscs/KS/KC/KGSAnd other foreignproduct crtfiation

EXPLORE

What we do ?

Products Center

Huacheng has a first-rate Quality Control system and a stable, dedicated QC team in place. The company obtained its ISO 9002 Quality Management System certification in 1998, and achieved the most recent Quality Management System ISO 9001 certification in 2003.

图片名称

Who are we ?

Ningbo huacheng valve co.,ltd.

Ningbo Huacheng Valve Co., Ltd., founded in 1989, is located in Huangtan Town, Ninghai County, Ningbo City, Zhejiang Province, specializing in valve design, manufacturing, sales, has a history of more than 30 years. The company's products involve urban water supply, urban gas, urban heating, building automation, home HVAC field.

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why choose us ?

ADVANTAGE

Huacheng specializes in the manufacture of a varied array of brass and bronze valves (e.g., gate valves, ball valves, stop valves, check valves, bibcock valves, safety valves, assembled valves and OEM parts). Its annual production output is 10,000 tons.

Quality control

Ningbo Huacheng Valve Co. Ltd. (“Huacheng”) was established in 1989. Huacheng is the largest bronze valve manufacturer in China and the company occupies more than 538,000 square feet, with more than 600 employees. It is rated number 4 out of the Top 50 of Chinese valve manufacturers.

Certificate

Huacheng has a first-rate Quality Control system and a stable, dedicated QC team in place. The company obtained its ISO 9002 Quality Management System certification in 1998, and achieved the most recent Quality Management System ISO 9001 certification in 2003. In addition, Huacheng has earned numerous overseas certifications including CSA, UL, AGA, Watermark, TSE, KS, and others.

Equipment

The design and development of high-technology products are presently underway at our professional engineering technical center, which is staffed with about 50 technical staff members. We have more than 500 high-end valve manufacturing equipments and 50 high-speed, high-accuracy and multifunctional special purpose machines imported from Taiwan. And there are more than 50 equipment available for hydraulic and air pressure testing.

NEWS & EXHIBITION

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24/03

The valve stem adopts the double sealing structure of bellows and packing.

The valve stem adopts the double sealing structure of bellows and packing. The bellows is welded with the inner ring and outer ring to form the bellows assembly, and then welded with the valve stem and guide body to prevent the medium from leaking out through the valve stem. The valve stem moves up and down from the flat key I until the upper end face of the flat key I contacts the lower end face of the lower packing. As the lower packing is made of PTFE material, if the valve is opened excessively, the flat key I will be embedded in the packing, the valve can no longer be opened and closed, and the bellows assembly will be killed, resulting in medium leakage along the valve stem. The stretching length and compression of the bellows are determined according to the valve stroke. If the stretching or compression exceeds the limit, the bellows may be damaged, resulting in small braided pipe rupture and seal failure. Therefore, it is necessary to increase the opening and closing limit device of the valve, so that the bellows can expand and contract within the design range during the opening and closing process of the valve.

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24/03

The commonly used stop valves are as follows:

Angle stop valve; In the angle globe valve, the fluid only needs to change its direction once, so that the pressure drop through the valve is smaller than that of the conventional globe valve.

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24/03

The stem axis of the stop valve is perpendicular to the sealing surface of the valve seat

The stem axis of the stop valve is perpendicular to the sealing surface of the valve seat. The relatively short opening or closing stroke of the valve stem and its reliable cut-off action make the valve very suitable for medium cut-off or adjustment and throttling.