Male M14 x 1.5 to either Male/Female 1/2" NPT

[ncp]

Does this coupler exist?

Can't find it in the US. I found M14 to 3/8" but not 1/2"!!!

[Erin]

I had to get something similar for a Separ filter recently. IIRC they have a list of adaptors on their website.

[ncp]

Originally Posted by Erin

I had to get something similar for a Separ filter recently. IIRC they have a list of adaptors on their website.

Thanks. They have a male M22 x female 1/2 but no M14.

Any UK industrial supply houses anyone know of that might be able to help? I think that I can make the conversion with US parts;it might just take 2 fittings to do it.

I had never heard of Separ Filters...What makes them so good? >$1,000 for one of their smaller single filters!

[jyasaki]

Is this for a fuel filter mount?

Check with a full-service auto supply house (not Kragen or O'Reilly or Pep Boys); many of them can custom assemble hoses; you'd just need a really short length with the applicable fittings. Or a hydraulic supply place, I suppose.

jky

[ncp]

Yep, fuel filter. Trying to save a bit over the big double canister filter set-ups that they sell for $250-$500+.

I got two great Cummins filter heads off of ebay for $25 each (and they each came with a high end Fleetguard filter which are each $20 on their own). My challenge is fittings/couplers as I will be mixing M14, 1/2" NPT, and AN/JIC-08. I've . Stopped by a Parker Store today and found some things. A custom 3 inch hose will be in the works.

I've worked out that I will save $118 and I will using a larger volume, more heavy duty 20 micron primary filter (versus the stock filter set-ups available for purchase)

Originally Posted by jyasaki

Is this for a fuel filter mount?

Check with a full-service auto supply house (not Kragen or O'Reilly or Pep Boys); many of them can custom assemble hoses; you'd just need a really short length with the applicable fittings. Or a hydraulic supply place, I suppose.

jky

[bcervelo]

Is this what you are looking for?
Aquafax » Marine & Industrial Equipment

[ncp]

Originally Posted by bcervelo

Is this what you are looking for?
Aquafax » Marine & Industrial Equipment

Thanks but looking for threaded 1/2" NPT

[Oregon Searider]

I work in the aviation field and have made several custom fittings to service foreign aircraft with AN style of flare fittings on the support equipment. Basically took two fittings, usually out of stainless and cut them in half. Weld them back together using TIG welder. Metric inverted flare to AN flare or what ever needed. Probably made 20 or so adapters this way.

[ncp]

I'm trying to mimic one of these set-ups:
Seaboard Marine - Custom Marine Diesel Repower Specialists
They charge between $250-$400 before some couplers/fitting and accessories.

I found two Cummins OEM filterheads on ebay for $25 each and they included a 10 micron Fleetguard Stratapore filter worth ~$16. The only issues is that they are M14 inlet and outlet ports and I could be spending $80 on fittings to connect everything (these filterheads are still returnable). All in though, I'll be ~$120 cheaper than if I I purchase an kit from sbmar.com.

Any thoughts from anyone as to whether M14 inlet/outlets will be too restrictive on my fuel flow? (the online kits they sell are 1/2" NPT). I burn ~12 gph WOT but because I'm diesel, my fuel filter(s) probably see 30+ gph before the engine returns it to the tank.

As for restriction, I found a Racor with M14 ports and it says maximum flow of 30 gph:
Parker - 230R SERIES FUEL FILTER/WATER SEPARATORS

[Erin]

We've got one of these which does 66 gph with M16 ports, so I'm sure you'll be fine with M14 at 30gph.

[ncp]

So, I'm actually probably going to drill out and re-tap. I was hoping for flow equal to 1/2" NPT. 14mm is ~1/2" but the approach to measurement is different. M14 is the outside diameter but when you say "1/2" NPT", you're actually talking about inside diameter (1/2" NPT on the outside is 0.840").

It's aluminum, it shouldn't be hard with a drill press and the right tap.