---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Fri 12/07/18: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:53 PM - Old air system modification. (lesknox) 2. 11:37 PM - Re: Old air system modification. (Bill Lang) ________________________________ Message 1 _____________________________________ Time: 09:53:19 PM PST US Subject: Yak-List: Old air system modification. From: "lesknox" An aircraft I have an interest in appears to have the early version of the air system. Notably, the pressure regulator valve, filter and NRV tree is behind the rear seat. Originally, I believe, there was an isolation valve immediately downstream of the water drain on the engine side of the firewall. This is not there now. On the cockpit side of the firewall there is a line that runs from the start valve to the EDP supply line that runs back to the tree. A NRV is incorporated in this line. Im thinking of removing this line. Has anyone done this or is aware of any issues associated with its removal? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=486163#486163 ________________________________ Message 2 _____________________________________ Time: 11:37:00 PM PST US From: Bill Lang Subject: Re: Yak-List: Old air system modification. NRV = Check Valve Sent from my iPad > On 8 Dec 2018, at 17:00, lesknox wrote: > > > An aircraft I have an interest in appears to have the early version of the air system. Notably, the pressure regulator valve, filter and NRV ?otree? is behind the rear seat. > Originally, I believe, there was an isolation valve immediately downstream of the water drain on the engine side of the firewall. This is not there now. > On the cockpit side of the firewall there is a line that runs from the start valve to the EDP supply line that runs back to the ?otree?. A NRV is incorporated in this line. > I?Tm thinking of removing this line. > Has anyone done this or is aware of any issues associated with its removal? > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=486163#486163 > > > > > > > > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message yak-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Yak-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/yak-list Browse Digests http://www.matronics.com/digest/yak-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.