BIGGGG    SNIP

Hi Bill;
       There are U.S. commercial Hydraulic fittings with
       37 deg. JIC flared fittings available in plated
       steel, stainless steel and brass..Parker Hannifin
       is a manufacturer of them, as well as the 45 deg.

                                         Butch Diaz Sr.

Bill Freeman wrote:

Butch,

You're absolutely right!   I was thinking in terms of ordinary plumbing
and gas (LP & natural) fittings, and was forgetting about the hydraulic
fittings industry.   In fact, I have been using a -6 angle adjustable elbow
on the outlet of my electric fuel boost pump for the last 10 years.  It
is plated steel, made by Aeroquip and is a hydraulic fitting rated for
(IIRC) 3000 psi service (plus whatever safety factor they use).  These
are a bit heavy, but I used all steel fittings in my fuel system to avoid
cracking and  stainless steel for the one hard line aft of the firewall, since
aluminum melts at a pretty low temperature compared to stainless.

37 degree hydraulic fittings are compatible with aircraft AN-type
37 deg fittings and at least the Aeroquip ones are of very high
quality.  IIRC, I paid about $5 for a fitting that would have been
twice that for "aircraft quality" at the time.

Bill
Long EZ builder & pilot
mechanical engineer

Welcome back Bill.

Paul Lamar
 
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