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I really should know this - QEV ports

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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I really should know this - QEV ports

Unread postAuthor: AlfiePB IanB » Sat Mar 05, 2016 8:41 am

Hi, I have a Humphrey QE5 QEV, please can some one verify which port goes where, I pretty sure my chamber goes on the out, its just the 'in' and 'exhaust' I need to know,

Does the barrel go on the exhaust and the supply/pilot go to the in port?

Are male NPT threads tapered or straight, nine seem tapered, if so what sort of torque should I tighten them to as I dont want to damage the QEV.

many thanks.
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AlfiePB IanB
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Re: I really should know this - QEV ports

Unread postAuthor: matti » Sat Mar 05, 2016 9:56 am

IN = pilot and fill
OUT = chamber
Exhaust = barrel

Not sure about the tapered NPT torque, but I would tighten them with hands as tight as I can and then just little more with wrench :D
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Re: I really should know this - QEV ports

Unread postAuthor: AlfiePB IanB » Sat Mar 05, 2016 1:10 pm

Thanks for info, just wanted to get it correct as going to use thread sealant instead of PTFE tape to look tidier. Thanks.
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