GDQ-J(b)-A type pneumatic high vacuum baffle valve (with bellows seal)Detailed product description：

The GDQ-J (b) - A series pneumatic high vacuum baffle valve (also known as angle valve) adopts bellows sealing. This valve is powered by compressed air and changes the direction of the air path through an electromagnetic directional valve, pushing the cylinder piston up and down and driving the valve stem up and down to open or close the valve plate, thereby achieving the purpose of connecting or cutting off the airflow in the vacuum system. This valve has a series of advantages such as smooth operation, reliable sealing, and long service life, and is one of the preferred valves for automation in vacuum equipment.

The applicable medium for valves is air and non corrosive gases

Main technical performance of GDQ-J (b) - A pneumatic high vacuum baffle valve (with bellows seal)

Scope of application (Pa)	2x105～1.3x10-6
Valve leakage rate (Pa.L/S)	≤1.3x10-7
Applicable temperature (℃)	-25～+40
Gas source pressure (MPa)	0.4～0.8
Flange Standard	GB4982
Installation location	arbitrary
power supply voltage	Standard factory: AC220V/50Hz Special designation: AC110V; DC24V； DC12V, etc
Signal Feedback	Standard factory: without feedback signal Special specification: Magnetic switch DC/AC 5~240V

Connection and external dimensions

Model	Diameter (DN)	ΦD	ΦB	H	A	L	bxb
GDQ-J10(b)A	ten	thirty	twelve point two	one hundred and thirty-nine	forty	forty	40x40
GDQ-J16(b)A	sixteen	thirty	seventeen point two	one hundred and thirty-nine	forty	forty	40x40
GDQ-J25(b)A	twenty-five	forty	twenty-six point two	one hundred and sixty-one	fifty	fifty-one	62x62
GDQ-J40(b)A	forty	fifty-five	forty-one point two	one hundred and ninety-one	sixty-five	sixty	80x80