Can this valve be mounted vertically

Hello, the solenoid can be mounted in any position,.

Can it be used to connect a rotary vane vacuum pump to a tank with atmospheric pressure ? Will the air leak through the closed valve?

As long as you observe the correct orientation of the valve (in/out direction), it doesn't matter, a vacuum on the low side (out) with atmospheric pressure on the high (in) side is no different than putting about 15 psi on the high side and atmospheric on the low - to a valve, it's all the same.

How much does the valve move?

don't understand the question. the moving parts are internal. it opens to provide what ever it takes the line to fill How far that is I don't know. If it is a half inch line the valve will move a half in.

ASIN	B07N6246YB
Brand	beduan
Brand Name	beduan
Connector Type	Threaded
Country of Publication	USA
Customer Reviews	4.1 out of 5 stars 472 Reviews
Exterior Finish	Copper,Aluminium,Brass
Inlet Connection Size	0.5 Inches
Inlet Connection Type	National Pipe Tapered
Manufacturer	Beduan
Material	Aluminium, Brass, Copper
Material Type	Aluminium, Brass, Copper
Maximum Pressure	7 Bars
Model Number	1kl-04200-BVW
Number of Ports	1
Outlet Connection Size	0.5 Inches
Outlet Connection Type	FNPT
Size	small
Specification Met	CE
Thread Size	1/2" NPT
Thread Type	NPT
UPC	659499212526
Unit Count	1.0 Count
Valve Type	solenoid valve

Beduan Brass Electric Solenoid Valve, 1/2" 12V Air Valve Normally Colsed for Water Air Gas Fuel Oil

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