1. The valve disc moves up and down The connecting pipe connects the upper chamber with the valve outlet, allowing the valve disc to rise and fall Reduce impact and vibration, and achieve full stroke of the valve
2. The valve body is Y-shaped with low resistance, and the guide ribs are welded with hard alloy. The guide sleeve is made of stainless steel material, and the valve cover operates flexibly
3. Adopt pressure self tightening seal Reliable sealing
4. The sealing surfaces of the valve disc and valve seat are both made of cobalt based alloy welding, which has high hardness, corrosion resistance, abrasion resistance, and durability
Material: Carbon steel, stainless steel, alloy steel, etc
Nominal Size: DN15~DN400
Pressure Rate: PN16~PN420
Temperature Range: -29℃~538℃
Operator: /
Application range:Water, oil、gas
The quality of forged steel parts is higher than that of cast steel parts, and they can withstand the impact of beatings. The plasticity, toughness, and other mechanical properties are higher than those of cast steel parts. The diameter of cast steel gate valves is generally not more than DN80, and most of them are reduced-diameter designs. Compared with cast steel gate valves of the same diameter, the flow rate is slightly lower, but the pressure and temperature range they can withstand are higher than those of cast steel valves, and the sealing performance is much better than that of cast steel gate valves, and the service life is longer. The flow direction of the medium is not restricted like other gate valves.
Designed specifically for deep cold medium working conditions such as LNG, liquid nitrogen, and liquid oxygen, it adopts special stainless steel or low-temperature alloy valve bodies. Through deep cold treatment, it ensures reliable sealing even in an extreme environment of -196℃. The innovative lateral maintenance port structure allows for quick replacement of the sealing components without disassembling the valve, significantly improving maintenance efficiency. The optimized double eccentric butterfly plate, combined with multi-level metal hard seals, achieves zero leakage and long service life under ultra-low temperature conditions. At the same time, it is equipped with a longened valve stem heat insulation structure, effectively blocking the conduction of cold energy.
The Double Gate Sampling Valve is an efficient valve specifically designed for industrial sampling. It features a double-gate structure that ensures reliable sealing and precise sampling control. The unique double-gate design guarantees stable media flow during the sampling process while effectively preventing leakage and contamination. This valve is widely used in industries such as chemical and pharmaceutical, especially for sampling inspections in reactors under crystallization conditions.