GW-J-T series high vacuum fine adjustment valveDetailed product description：

The GW-J-T series high vacuum fine adjustment valve (also known as vacuum needle valve) is driven by a screw to adjust the gap length between the conical needle and the hole, and change the valve seat flow conductivity value. It is used to inflate the vacuum system and accurately adjust the intake flow rate to control and regulate the vacuum degree inside the system.

The applicable working medium is air without particulate dust and non corrosive gases.

Main technical performance

Model	Diameter (DN)	ΦD	Minimum Adjustable Volume (Pa.L/S)	Maximum Adjustable Volume (Pa.L/S)	Scope of application (Pa)	Valve leakage rate (Pa.L/S)	Medium temperature (℃)
GW-J30-T	zero point eight	twenty-two	1.3x10-2	four thousand	105～1.3x10-2	＜ 1.3x10-6	-25～+80
GW-J200-T	two	thirty-eight	1.3x10-1	twenty-six thousand and seven hundred

GW-J-T series high vacuum fine adjustment valve