GI-A series high vacuum butterfly valveDetailed product description：

The GI-A series high vacuum butterfly valve is used to connect or cut off the airflow in vacuum pipelines. The valve plate adopts a clamping structure to clamp the sealing ring of the valve plate, providing better sealing effect.
The applicable working media are air and non corrosive gases.

Main technical performance of GI-A series high vacuum butterfly valve

Scope of application (Pa)	105～1.3x10-5
Valve leakage rate (Pa.L/S)	≤1.3x10-6
Medium temperature (℃)	-25~+80 (sealing material is nitrile rubber) -30~+150 (sealing material is fluororubber)
Flange Standard	GB/T6070
Installation location	arbitrary

Connection and external dimensions

Model	Diameter (DN)	ΦD	ΦB	H	A	L	n-ΦC
GI-50A	fifty	one hundred and ten	ninety	eighty-two	twenty-six	one hundred and seventy-one	4-Φ9
GI-63A	sixty-three	one hundred and thirty	one hundred and ten	ninety-three	thirty-two
GI-80A	eighty	one hundred and forty-five	one hundred and twenty-five	one hundred			8-Φ9
GI-100A	one hundred	one hundred and sixty-five	one hundred and forty-five	one hundred and eleven
GI-125A	one hundred and twenty-five	two hundred	one hundred and seventy-five	one hundred and twenty-eight	thirty-five	one hundred and ninety-seven	8-Φ11
GI-150A	one hundred and fifty	two hundred and twenty-five	two hundred	one hundred and forty-two
GI-200A	two hundred	two hundred and eighty-five	two hundred and sixty	one hundred and seventy-six	forty-five	two hundred and fifty	12-Φ11
GI-250A	two hundred and fifty	three hundred and thirty-five	three hundred and ten	two hundred and five	fifty	three hundred and sixty-three
GI-300A	three hundred	four hundred and twenty-five	three hundred and ninety-five	two hundred and forty-nine	fifty-five		12-Φ14

GI-A series high vacuum butterfly valve