DDC-JQ-B series electromagnetic vacuum with inflation valveDetailed product description：

The DDC_JQ-B series electromagnetic vacuum belt inflation valve is a specialized valve installed on mechanical vacuum pumps The valve and pump are connected to the same power source, and the opening and stopping of the pump directly control the opening and closing of the valve When the pump stops working or the power is suddenly interrupted, the valve can automatically seal the vacuum system and fill the pump chamber with atmosphere through the pump's inlet, avoiding pump oil backflow and pollution of the vacuum system
The applicable working medium is air and non corrosive gases

Technical performance of DDC-JQ-B series electromagnetic vacuum belt inflation valve

Scope of application (Pa)	10 5 ～1×10 -2
Valve leakage rate (Pa.L/S)	＜6.7×10 -4
Applicable temperature (℃)	-25～+50
Coil temperature rise (℃)	≤65
Opening and closing time (S)	≤3
Power supply voltage (V/Hz)	220/50

Connection and external dimensions

Model	Diameter (DN)	ΦW	ΦD	ΦB	H	A	n-d	Flange Standard
DDC-JQ16B	sixteen	sixty-eight	thirty	seventeen point two	one hundred and ninety-one	forty	/	GB4982
DDC-JQ25B	twenty-five	eighty-two	forty	twenty-six point two	two hundred and two	fifty
DDC-JQ32B	thirty-two	ninety-two	fifty-five	forty-one point two	two hundred and forty-four	fifty
DDC-JQ40B	forty	one hundred and ten	fifty-five	forty-one point two	two hundred and seventy-five	sixty-five
DDC-JQ50B	fifty	one hundred and twenty-five	one hundred and ten	ninety	three hundred and fourteen	eighty	4-Φ9	GB/T6070
DDC-JQ65B	sixty-five	one hundred and thirty-five	one hundred and thirty	one hundred and ten	three hundred and forty-three	eighty-eight	4-Φ9
DDC-JQ80B	eighty	one hundred and thirty-five	one hundred and forty-five	one hundred and twenty-five	three hundred and eighty-seven	ninety-five	4-Φ9
DDC-JQ100B	one hundred	one hundred and sixty-five	one hundred and sixty-five	one hundred and forty-five	three hundred and ninety-nine	one hundred and eight	8-Φ9