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Which PUSH TYPE FUEL DRAIN VALVE for RV-7A?

M

Mils1977

I'm New Here
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?

safaircav110.php
 
Mils1977 said:
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?

safaircav110.php
Click to expand...

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.
 
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.
 
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
 
RV7A Flyer said:
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?
Click to expand...

The non-stainless steel ones are gold cadmium plated steel, so they can rust after a while.
 
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.

 
OK, thanks. I have the non-SS ones and they appear fine after 750 hours, but then I live in SoCal, so the environment is nowhere near as harsh. Maybe someday I'll swap them out if they start to look corroded or anything.

Good info, thanks!
 
Reference??

I could not find the 110SS on either Vans or Spruce. Anyone have a reference?

Thanks in advance!

Cheers, Sean
 
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