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01-09-2020, 11:09 AM
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Join Date: Sep 2019
Location: Round Rock, TX
Posts: 4
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Which PUSH TYPE FUEL DRAIN VALVE for RV-7A?
Right wing valve dripping. Maybe O-ring needs to be replaced. Local mechanic also recommend I keep a spare handy. Spruce has differs models. I do not know the model number. Is there a known standard Push Type Drain Valve for the RV-7A?
https://www.aircraftspruce.com/catal...?clickkey=8941 |
01-09-2020, 11:19 AM
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Join Date: Dec 2013
Location: SLC, UT (KBTF)
Posts: 243
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Quote:
Originally Posted by Mils1977
Is there a known standard Push Type Drain Valve for the RV-7A?
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Yes, Van's sells it. Buy one and a couple of spare O-rings to fit it.
Cheers, David
RV-6A KBTF |
01-09-2020, 11:23 AM
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Join Date: Jul 2007
Location: Litchfield Park, AZ
Posts: 1,020
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Quote:
Originally Posted by Mils1977
Right wing valve dripping. Maybe O-ring needs to be replaced. Local mechanic also recommend I keep a spare handy. Spruce has differs models. I do not know the model number. Is there a known standard Push Type Drain Valve for the RV-7A?
https://www.aircraftspruce.com/catal...?clickkey=8941 |
Per RV7 plan sheet 16A which calls out drain valve CAV-110. The o-ring part # MS29513-006 as noted at the bottom of your link.
__________________
Carlos in Arizona
EAA Chapter 538 www.chapters.eaa.org/eaa538
Wittman Tailwind W8 N53CH (built & sold)
Pazmany PL-1 N2029 (bought & sold)
RV7 - N537TC (reserved & building)
Emp, Wings & Fuse done - working on FWF
"The air is an extremely dangerous, jealous and exacting mistress. Once under the spell most lovers are faithful to the end, which is not always old age." - Winston Churchill
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01-09-2020, 01:05 PM
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been here awhile
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Join Date: Dec 2004
Location: North Alabama
Posts: 4,304
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Quote:
Originally Posted by Mils1977
Right wing valve dripping. Maybe O-ring needs to be replaced. Local mechanic also recommend I keep a spare handy. Spruce has differs models. I do not know the model number. Is there a known standard Push Type Drain Valve for the RV-7A?
https://www.aircraftspruce.com/catal...?clickkey=8941 |
You need to get a set of plans/manuals for your RV-7A. They are available for $10 on a flash drive from Vans:
https://shop.vansaircraft.com/cgi-bi...oduct=fd_plans
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01-09-2020, 02:59 PM
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Join Date: Nov 2014
Location: Richmond Hill, GA (KLHW)
Posts: 2,194
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SAF-AIR now makes a stainless version of the CAV-110 but ACS doesn't yet show they carry it, even though I asked well over a year ago.
__________________
Ray
RV-7A - Slider - N495KL - First flt 27 Jan 17
O-360-A4M w/ AFP FM-150 FI, Dual PMags, Vetterman Trombone Exh, SkyTech starter, BandC Alt (PP failed after 226 hrs)
Catto 3 blade NLE, FlightLines Interior, James cowl, plenum & intake, Anti-Splat -14 seat mod and nose gear support
All lines by TSFlightLines (aka Hoser)
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01-09-2020, 03:33 PM
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Join Date: Jun 2005
Location: Fort Myers, Florida
Posts: 15
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Fuel Drain
I recommend the SS version from Vans
__________________
Tom Kracmer
Fort Myers, Florida, KFMY
RV-7A Tip-up
Flying
2020 Donor
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01-09-2020, 03:38 PM
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Join Date: Jun 2005
Location: Georgetown, TX
Posts: 338
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SAF-AIR
The manufacturer of the fuel drains is SAF-AIR ( www.saf-air.com)
Either the CAV-110 or CAV-110SS will fit the Van's 1/8" NPT bung.
Their distributors are listed on their website.
Cheers
__________________
Brian Decker
Retired Firmware Guy and Airplane Builder
2020 RV-14 QB -- Under construction - Tailcone & Empennage Complete.
2018 RV-7 QB -- Built, Flying
2007 RV-7 QB -- Built, Drowned, Resurrected and flying
1998 RV-8 QB -- Started, Sold
1986 Mooney 205SE
1980 Mooney 231
Aided and abetted building a number of other RV's.
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01-10-2020, 01:53 PM
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Join Date: Jul 2013
Location: US
Posts: 2,254
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Quote:
Originally Posted by tkracmer
I recommend the SS version from Vans
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Is there some advantage to SS over the brass ones which they previously supplied with the kits (and which is what I have)?
Or do they just look cooler?
__________________
2019 Dues paid!
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01-10-2020, 02:43 PM
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Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 9,048
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Quote:
Originally Posted by RV7A Flyer
Is there some advantage to SS over the brass ones which they previously supplied with the kits (and which is what I have)?
Or do they just look cooler?
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The non-stainless steel ones are gold cadmium plated steel, so they can rust after a while.
__________________
Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.
Scott McDaniels
Van's Aircraft Engineering Prototype Shop Manager
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
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01-10-2020, 03:22 PM
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Join Date: Oct 2008
Location: Utah
Posts: 8,159
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If you fly a lot and sample a lot they may even freeze on you between condition inspection. A locking pliers are needed to hold the tank flange to prevent flange rivets damage during drain removal.
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