GW-J-T series high vacuum fine-tuning valve (also known as vacuum needle valve) adjusts the gap length between the tapered needle and the hole by screw rotation, and changes the conductance value of the valve seat. It is used to inflate the vacuum system and can precisely adjust the intake flow to control and adjust the vacuum degree in the system. The applicable working medium is air and non-corrosive gas without particle dust.

JL type flow monitor is suitable for liquid and gas pipelines at room temperature, and is a mechanism for monitoring flow. The material of the valve body is precision casting of stainless steel (1Cr18Ni9), the spherical cover is made of plexiglass, and the impeller is made of nylon. It is a relatively advanced flow monitor at present.

GM series high vacuum diaphragm valve uses the valve stem to directly press the rubber mold on the valve seat to cut off or connect the vacuum system. The connection forms include looper flange connection, quick release flange connection and welding connection. The welded connection is divided into welded type I connection (that is, two ends connected), and welded type II connection (that is, one end is welded and the other end is inserted). The applicable working medium of the valve is air and non-corrosive gas.

GID series electric high-vacuum butterfly valve adopts rotary electric and electronically adjustable valve drive device, which can realize valve opening, closing or intermediate position through switching of external power supply (manual index switch or computer control) or external input signal. Control, so as to achieve the purpose of turning on or cutting off the air flow in the vacuum pipeline. The applicable working medium is air and non-corrosive gas.