GYC-JQ series high vacuum electromagnetic pressure differential inflation valveDetailed product description：

DYC-JQ and GYC-JQ series high vacuum electromagnetic pressure differential inflation valves are specialized valves installed on mechanical vacuum pumps. Installed at the inlet of the mechanical vacuum pump and synchronously opened and closed with the pump. When the pump stops working or the power is suddenly interrupted, the valve can rely on the pressure difference between the atmosphere and vacuum to automatically close the valve plate, seal the vacuum system, maintain its vacuum degree, and fill the pump chamber with atmosphere through the throttle hole of the valve, thereby avoiding pump oil backflow and pollution of the vacuum system.
The applicable working medium is air and non corrosive gases.

Technical performance of GYC-JQ series high vacuum electromagnetic pressure differential inflation valve

Scope of application (Pa)	10 5 ～1x10 -3
Valve leakage rate (Pa.L/S)	＜1.0x10 -4
Power supply voltage (V/Hz)	220/50
Medium temperature (℃)	-25～+50
Opening and closing time (S)	≤3
Installation Method	Vertical or horizontal
Flange standard (V/Hz)	GB4982; JB919

(Figure 1) KF connection and external dimensions GB4982

Model	Diameter (DN)	ΦD	ΦB	H	A	bxb
GYC-JQ16/KF	sixteen	thirty	seventeen point two	one hundred and fifty-three	forty	37x37
GYC-JQ25/KF	twenty-five	forty	twenty-six point two	one hundred and fifty-five	fifty	62x62
GYC-JQ40/KF	forty	fifty-five	forty-one point two	one hundred and seventy-eight	sixty-five	80x80

(Figure 2) Connection and external dimensions JB919

Model	Diameter (DN)	ΦD	ΦB	H	A	F	n-Φd
DYC-JQ150	one hundred and fifty	two hundred and twenty	one hundred and ninety-five	three hundred and seventy	one hundred and fifty-three	one hundred and sixty	8-11