GDQ-JLb series pneumatic vacuum damper valveDetailed product description：

Vacuum valve; Pneumatic vacuum baffle valve
The GDQ-JLb series pneumatic vacuum damper valve is a valve used to open or block airflow in a vacuum system with a pressure range of 1.3 × 10-5~105Pa.

Main performance
Leakage rate: ≤ 1.3 × 10-9Pa. M3/S;
Applicable pressure range: 1.3 × 10-5~105Pa;
Working medium: air, non corrosive gases;
Working temperature: Fluorine glue -30 ℃~+150 ℃;
Installation location: arbitrary;
Lifespan: ≥ 100000 cycles.

Principle
Powered by compressed air, it achieves the purpose of opening and closing through cylinder actuators.

characteristic
Square design, compact structure, beautiful appearance, and light weight;
Low mechanical wear and long service life;
The shaft seal adopts corrugated tube sealing;
Easy to install and use, safe and reliable to operate;
High conductivity, maximizing the efficiency of the pump;
Pneumatic control mode: Two position two-way, normally closed type;

Main component materials
Valve body, cylinder, cylinder head	LY12
Valve stem, corrugated pipe	three hundred and four
O-ring	fluororubber

GDQ-JLb series pneumatic vacuum baffle valve connection size: (standard: GB4982)

number	DN	A	B	C	L	H
GDQ-J10Lb	ten	thirty	thirty	twelve point two	forty-eight	one hundred and seventeen
GDQ-J16Lb	sixteen	forty	thirty	seventeen point two	sixty-two	one hundred and twenty-seven
GDQ-J25Lb	twenty-five	fifty	forty	twenty-six point two	eighty	one hundred and fifty-six
GDQ-J40Lb	forty	sixty-five	fifty-five	forty-one point two	one hundred and four	one hundred and ninety-two