Wammers if the diagpham opens to let it air in what stops it comming out tought you said once diaphragm closes its a one way pipe sorry got it nrv 1 doh
If nrv one is leaking you can feel it out of exhuast filter in v block but only if its a good leak that's why I've done the ballon trick I stood there for ages and no leak
It was so slow
The gallery used for filling the tank is the same one used to exhaust air from the bags. When the compressor is running it is sealed by the diaphragm solenoid valve opening and pressurising the underside of the diaphragm sealing the exhaust port. Air then passes along the gallery and to the tank via NRV1 which seals it in the pressure storage side of the system. When the compressor stops the diaphragm solenoid valve closes, and the pressure holding the diaphragm valve shut, is exhausted through the small 4 mm pipe into the loom. At the same time the gallery is exhausted of high pressure air through the exhaust port past the diaphragm valve which is now only being held on it's seat by a spring. Balloon will work but you then can't tell if it's lower pressure air from a bag or higher pressure air from the tank. Could be either.
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