Knife gate valve entered China in the 1980s. In less than 20 years, its application scope has expanded from ordinary fields to a broader range of industries, from coal preparation, gangue discharge and slag discharge of mine power plants to urban sewage treatment, from general industrial pipeline development to professional pipeline systems such as food, health and medicine.
The drive modes of knife gate valve are:
Manual, electric, pneumatic, hydraulic, bevel gear, electro-hydraulic and pneumatic and hydraulic driving modes. Shape of knife gate valve: rising stem and Non rising stem. Material of knife gate valve: cast iron, cast steel, carbon steel, stainless steel, fluorine lining, etc. Knife gate valve seal: hard seal, soft seal, single-sided seal, double-sided seal and other materials.
The correct installation method is the premise for the good operation of the machine. The knife gate valve adopts the toughening engineering as the main material for shut-off and anti throttling scouring. At the same time, it is designed with a structural form for anti throttling scouring. It has the dual function of shut-off or shut-off + throttling, and its service life can reach 10 times that of the conventional metal knife gate valve.
With the advantages of small volume, small flow resistance, light weight, easy installation and disassembly, the thin knife gate valve solves the difficult problems of large flow resistance, heavy weight, difficult installation and large floor area of ordinary gate valve, flat gate valve, ball valve, stop valve, regulating valve and butterfly valve. After the appearance of knife gate valve, a large number of general cut-off valves and regulating valves have been replaced. Today, the large amount of knife gate valve is used in the United States and Japan.

Nortech is one of the leading industrial valve manufacturers in China with quality certification ISO9001.

Major products: Butterfly Valve, Ball Valve,Gate Valve, Check Valve, Globe Vavlve,Y-Strainers, Electric Acurator , Pneumatic Acurators .

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