Fluorine-lined cut-off valve is suitable for various concentrations of aqua regia, sulfuric acid, hydrochloric acid, hydrofluoric acid and various organic acids, strong acids and strong oxidants at -50 to 150 °C. It is also suitable for various concentrations of strong alkali organic solvents and others. Corrosive gas, used on the pipeline of liquid medium.
The national standard stop valve is the most commonly used product in the series of shut-off valves. The API American standard cut-off valve American standard cut-off valve performs ANSI and API standards. The sealing surface of the valve disc and the seat is made of Stellite cobalt-based hard with different hardness. The alloy is surfacing and has reliable sealing, high hardness, wear resistance, high temperature resistance, corrosion resistance, good scratch resistance and long service life.
The needle valve is a small-diameter instrument valve that functions as a switch-off and precise flow control in the meter-measuring pipe system. It mainly includes power station instrument series, oil field-specific series, and American standard series.
Low temperature shut-off valves are generally referred to as valves operating at temperatures below -110 ° C and are widely used in liquefied natural gas, liquefied petroleum gas and other cryogenic industries. From 2008, the shut-off valve with a suitable temperature of -196 °C can be manufactured. All parts are pretreated with liquid nitrogen at a low temperature to completely avoid sealing deformation and leakage during use.
The plunger valve, also known as the plunger stop valve, has a sealing surface with a radial sealing structure, and the two elastic sealing rings sleeved on the polishing plunger are applied to the valve cover by the connecting bolts of the valve body and the valve cover. The elastomeric sealing ring around the plug is pressed to achieve a sealed shut-off valve.
The insulation jacket cut-off valve adopts the insulation jacket design, and uses external heat source to circulate and heat outside the valve, which can effectively prevent the temperature loss of the medium when passing through the valve and ensure the temperature of the medium.
The forged steel globe valve is designed and manufactured according to API 602 standard. It provides three types of bonnet design: bolt-type bonnet, welded bonnet, pressure self-tightening bonnet. Users can choose different forms according to their needs, provide RF flange, NPT thread, SW welded three connection methods.