Advantage and characteristic of gate valves:
1 Gate valves conform to GB, JB, ANSI, API, JIS, BS, DIN etc. Advanced standard of domestic and abroad, which are reasonable structure, reliable sealing, good function and attractive appearance.
2 Ranges of material type are complete. The packing and gasket can be supplied according to customer requirements. It is applicable for all kinds of pressure, temperature and medium situation. The parts of high temperature pressure resistant are made of heat resisting alloy steel. The sealing surface of disc and seat are welded by Stellite alloy, which are safety and reliable, performance steady and long service life.
3 Design constructions of body and bonnet are in reason. The wall thickness meets national standard GB122234 and American ANSI B16.34 requirements after the strict control and examination. They are high intensity, good rigidity and low flow resistance.
4 Disc is wedge gate disc. It made by whole steel and the figure is beautiful. The seal quality is quite good. Its feature is gate valve's fore-and-aft pressure to the seat. So the seal is better. And when it opens fully, the loss on pressure will reduce.
5 Stem is made of heat-resistant alloy steel. After quenching and tempering and surface nitriding, the stem has mechanical function, corrosion-proof and abrasion-proof.
6 All gate valves are adopted back seal structure. It is easy in-line maintenance and replacement of packing.
7 Select end connection type according to customer or project request. Many kinds of driving manner can satisfy different application requests.
8 All kinds of flange standards and flange sealing type, which satisfy requirements of project and customer.
Anhui Tunxi High Pressure Valve Co., Ltd., comes from Tunxi high pressure valve factory. It is located in Huangshan city, Anhui province. It is the medium enterprises of the original national machinery ministry fixed-point production medium-high pressure valve. It is a state second grade enterprise, and one of national valve trade backbone enterprises.
The company founded in 1972, has more than 30 years history in design, development and manufacture of valve. In 2005 the enterprise success carried on changes the system, has established the modern enterprise system. In 2006 purchased 100 mous lands in economy development zone of Anhui Huangshan City, and built the modernized completely new factory building. Company has more than 200 staffs, among them more than 40 engineers and technicians.
The company technical force is abundant, the equipment is fine, and the technology is advanced. The company is the high-new tech enterprise of Anhui Province, possesses advanced valve manufacturing equipment and complete physicochemical inspection and test equipment. For example 2000 tons die forging pressure production line, the numerical control lathe, the high frequency melt weld, CO2 active protection welding machine, the helium mass spectrometer vacuum leak detectors and so on, is the leading level in the national colleague industry.
The company has established the integrity quality management system, and in 1996 gained certificate of API6D, in 1997 gained certificate of DNV ISO9001, in 2003 obtained pressure pipe component manufacturing unit safety registered certificate. The company continuously gains the Anhui province quality management prize for many years.
The company mainly manufactures the valves according to ANSI, API, MSS, JIS, DIN, BS and Chinese GB standards. The main products include gate valve, globe valve, check valve, ball valve, throttle valve, diaphragm valve, anti- sulfur valve, needle globe valve, butterfly valve and so on, which are widely used in the field of petroleum, chemical industry, natural gas, metallurgy, electric power, medicine, astronautics, nuclear power station, and have been exported to India, Pakistan and other countries.
The "Huangshan brand" forged steel valve that the company produced to gain the title of "national user satisfaction product"and "Anhui province famous brand product". The bellows valve was gained the title of"station emphasis new product".
The company is member of Class-I supply network of both Sinopec Materials & Equipment Resources Market and PetroChina now. The company persists in the management idea"Pursues remarkably, innovates unceasingly", strives for perfection to make the high-quality goods, develops the market with the good faith service, devotes to make the Chinese first-class valve manufacture enterprise, diligently provides the best product and service for the domestic and foreign customers.
