Non-standard custom plunger sampling valves are widely used in chemical, pharmaceutical, pesticide, dye, food processing industries, etc. The non-standard custom plunger sampling valve is mainly made of stainless steel 304 and 316, and can also be customized according to customer requirements or according to the corrosive strength of the medium. The principle is a plunger valve, a real double sealing system, which can avoid the occurrence of leakage. The maximum sealing temperature can reach 450. The exposed length of the plug and the thermal insulation shell can be designed according to the installation needs to ensure that the sampling port pipeline of the container is free of aggregates, but It is not easy to block materials with high viscosity, and it is an ideal sampling device.