Bronze valves originally referred to copper-tin alloy valves. Later, copper alloys other than brass and cupronickel were called bronze, and the name of the bronze valve was often prefixed with the name of the main added element. The Aluminum bronze integral forged flange gate valve has high strength, good wear resistance and corrosion resistance. It is used to cast high-load gears, shaft sleeves, and marine propellers.

Stainless steel welded flange gate valve, flange connection is suitable for cutting or connecting the pipelines of various petroleum, chemical, hydraulic, and electric power stations with a nominal pressure of PN1.6 ~ 16.0MPa and a working temperature of -29°C ~ 550°C. Pass the pipeline medium. Applicable media are: water, oil, steam, acid, alkali, ammonia, urea, sulfur-containing natural gas, etc.

Cast steel flange gate valve, the full name is "flange connection API cast steel gate valve", suitable for ANSI Class 150 ~ 2500, working temperature <600 ℃ on the pipeline of various working conditions such as petroleum, chemical industry, thermal power station, etc. Pass the pipeline medium. Applicable media are: water, oil, steam, etc. The operation modes are: manual, gear drive, electric, pneumatic, etc.

What is a duplex stainless steel gate valve The duplex stainless steel gate valve is a device for separating and merging or switching flow direction, made of duplex stainless steel. This type of valve is mainly used for fluid transportation, cutting off, and circulation, with functions such as shut-off, diversion, pressure stabilization, and diversion. The gate of the duplex stainless steel gate valve moves linearly with the valve stem, and its opening and closing component is the gate. The direction of the gate's movement is perpendicular to the direction of the fluid. This design allows the gate valve to only perform fully open and fully closed operations, and cannot be adjusted or throttled. The gate of a duplex stainless steel gate valve has two sealing surfaces, and the most commonly used mode is that the two sealing surfaces of the gate valve form a wedge shape. The wedge angle varies with the valve parameters, usually 50 °, and 2 ° 52 'when the medium temperature is not high. The gate of a wedge gate valve can be made as a whole, called a rigid gate; It can also be made into a gate that can produce slight deformation to improve its processability and compensate for the deviation of the sealing surface angle during the processing. This type of gate is called an elastic gate。