About Us

Kaifeng High and Middle Pressure Valves Co., Ltd was established in 2004 with a registered capital of 110 million. The factory with an area of 30,000 square meters, 98 employees and 38 technicians. Its main business is to produce and sell high and low pressure industrial valves with an annual output value of 70 million. It is the Member of council in the China Valve Association. Kaifeng Dongli High Pressure Valve Casting Co., Ltd was established in 2007 with a registered capital of 27 million, a factory area of 18,000 square meters, 120 employees and 26 technicians. Its main business is to produce and sell high and low pressure industrial valve steel castings with an annual production capacity of 5,500 tons. It is the Member of council in Henan Casting and Forging Association. Kaifeng Ruiwei Fluid Technology Co., Ltd was established in 2017 with a registered capital of 2 million yuan, 50 employees and 48 technicians. Its main business includes research and development of flow control equipment, technology transfer, technology support ,research and development of new materials for valves.

The two major series of valve products and corresponding with steel casting valves for High temperature and high pressure gate valve,Ball valve,Globe valve, Exhaust valve and other switch valves, High plus three-way valve, High and low pressure bypass valve, Control valve, Butterfly valve and etc.

Kaifeng Dongli High Pressure Valve Casting Co.,Ltd. is located in Kaifeng Economic and Technological Development Zone and covers an area of 32,000 square meters. It has a total staff of 160, and including 26 high and middle engineers and technicians. The company was founded in 1996, it's consisted of Kaifeng Dongli Corporation, Kaifeng Liangshun Power Station Valve Company, Kaifeng Wanxi Grinding Tool Factory. Kaifeng Liangshun Power Station Valve Company grew out of Kaifeng High Pressure Valve Factory Casting Branch, the casting technology of high temperature and pressure is introduced from Japan Okano in 1985.

The company is the professional business which producing valves steel casting and valve products. The Company has annual production capacity of 6,000 tons of steel casting. It is one of the strongest professional casting enterprises in China. Our products are widely used in the area of electric power, petroleum, chemical, steel and coal industries etc.

valves.

Main Production Equipment: 5T medium frequency furnaces, 2.5T medium frequency furnaces, 0.75T medium frequency furnaces, the resin sand flask molding lines with German technology, multiple shot-blasting machines, heating treatment furnaces, full set of model making and excellent mechanical processing equipment.

Detection Methods: SPECTROMAXx Metal Analyzer, Co60 γ-ray Flaw Detector, X-ray Flaw Detector, Magnetic Particle Testing, Ultrasonic Testing, Penetration Testing equipments, Metallographic testing equipments, and Mechanical properties test equipment etc..

Materials: Carbon Steel, Heat Resistance Steel, Stainless steel, mainly including WCB,WCC,WC1,WC6,WC9,WB36,LCB,LC3,LCC,CF8,CF8M,CF3M,CF8C and Cr,Mo,V steel.

Product Parameters: Working temperature:-196°C～650°C

Mpa:150Lb～4500Lb

Valve Bore Diameter:50mm～1300mm(2"～50")

Maximum Weight per unit: 6 tons

Resin sand production line,Medium frequency electric furnace,Germany Spectro Direct reading Spectrometer,Cobalt-60 ray flaw detection machine,CNC vertical lathe,CNC boring and milling machine,Five-axis linkage CNC lathe, Machining center, CNC electric spark molding machine,CNC wire cutting,Fast molding machine and Injection molding machine.