Identifying this pressure washer hose fitting.

[Jeff Body]

So half the day was spend pressure washing until the hose fitting broke off the pressure washer's pump. It's the pump inlet for the garden hose.
I managed to get the broken part out of the pump and here is where I need help. I thought it would be just a regular pipe thread and I could replace it easily. But it turns out that it seals with an O'ring. I don't think I've ever come across this type of fitting.
Would my local orange or blue store have this type of fitting?
What keywords do I search on-line to find this piece?

Everything I find has pipe threads.
2020-03-14 22.02.11.jpg2020-03-14 22.02.04.jpg

[David Buchhauser]

I'd check with your local hardware store. If they don't have it, they'll probably know what it is and can either order it or point you in the right direction.
David

[Bill Dufour]

I would guess BSSP. Probably need an adapter from BSSP to NPT. Then NPT to a hose adapter. I think BSSP is whitworth not a 60 degree thread form.
Bill D.

https://www.ryco.com.au/technical/th...-bspp-threads/

[Jeff Body]

This is honestly driving me crazy. I've never had this much of a problem finding a part.
It's for an Ex-Cell EPW2123100 pressure washer with what looks like your basic horizontal pump.

From my research I'm getting its a straught thread fitting

"Straight pipe threads are designated NPSC = National Pipe Straight Coupling. Also generically referred to as "IPS Threads" or "Iron Straight Threads". ... Typically, a design that utilizes a straight pipe thread will incorporate a sealing features, like an oring to facilitate fluid sealing."

But for the life of me I can't find a straight thread to female garden hose fitting. I can't find anything with straight threads.
I wouldn't care if I had to adapter 3 different fittings to make it work. I can't find this first fitting to start.

[jim sauterer]

Did you try ereplacement parts.com ?Put in the name and model number of your power washer to find a parts diagram

[David Buchhauser]

Here is the illustrated parts book for your pressure washer. The replacement water inlet fitting is contained in the Inlet Connection Kit part# E108324. You can order this kit from M & D Mower & Appliance - price is $25.39 plus $8.95 shipping. See the links below.

Excell Illustrated Parts Book.jpg
http://www.powermate.com/pdfs/2017/0...3100_parts.pdf
Excell pressure washer repair kits - E108324.jpg


https://www.m-and-d.com/PWM-E108324.html
E108324 Inlet Connection Kit.jpg

It is possible the part shown below might fit. If you're in no hurry, you could order it from Amazon for $13.99 with free shipping, and return it if it doesn't fit.

https://www.amazon.com/ROP-Shop-Reve...3&sr=8-1-fkmr2
Pressure Washer Water Inlet Tube.jpg

Another option would be McMaster-Carr, if you want to buy individual fittings in an attempt to duplicate your inlet fitting with garden hose connection.

https://www.mcmaster.com/brass-strai...-pipe-fittings
McMaster-Carr.jpg

Good Luck!!
David

[Lee Schierer]

If google is your search engine, simply open a new tab while viewing this post and enter female hose to male pipe adapter in the address bar. Here is what came up for me.

[Dan Friedrichs]

Looks like David found the right part.

As Bill said, it's probably NOT "pipe" (NPT), but BSPP (British Standard Parallel Pipe) which does not taper like NPT and relies on the O-ring to seal. You will not find anything at the hardware store that will fit

[Tom M King]

I never knew what the proper name for those 0-ring fittings were, so did some Googling. Looks like they're called different things, but the most proper name seems to be ORB. ORB is for o-ring boss. They're the same thread as SAE, but they seal with an o-ring, whereas the SAE fittings have a different end for hydraulic compression fitting (not sure if that's always the case though-didn't study those fittings).

[Tom M King]

I working on a tractor, this past week, I found some problems with the hard hydraulic lines. There is one of these ORB fittings threaded into a machined casting, and onto that is threaded an SAE tapered end that one of the hard lines is screwed onto. The fitting was leaking where the o-ring is. After taking it apart, the o-ring was overcompressed, and torn, so that's where the leak was.

The flats on the ORB adapter are too narrow to get a regular wrench on, and use a flare nut wrench on the hydraulic hose. That's by design, and why "service wrenches" had short handles, which is to limit the torque one can put on them. In this case, you hold the fitting with a service wrench, and then tighten the SAE fitting with a flare nut wrench. The leak was caused because someone tightened the SAE fitting with a regular wrench, overtightening the o-ring in the process. I'm replacing all the hard hydraulic lines because all the ends have been distorted by using a regular wrench, and too much torque. A regular wrench might fit one set of flats, but the next set of flats around, are oversized because of the distortion. It really doesn't take much torque on either of these type of fittings. Long story shortened, only use flare nut wrenches on compression fittings, regardless of their size.

This doesn't apply to this adapter, other than limiting the amount of torque put on the o-ring when you put it back in.

Here's a torque chart I found:

https://www.new-line.com/information...ulic-couplings

and a nomenclature chart:
https://www.hydraulicsdirect.com/Fit...art-s/1934.htm

[Bill Dufour]

The British pipe threads are 55 degree whitworth not 60 degree USA and Metric. Use a thread gauge and see if it is metric or inch thread spacing. You can probably use a inch taper pipe fitting with lots of pipe dope and seal it well enough to work. A little leakage is not important but over tightening the wrong thread into the casting may distort the female threads so it can never be sealed all the way.
If it goes into a steel casting you are probably going to be okay. If it is brass or Al good luck.
My 1977 Datsun used British pipe threads for the oil pressure sender. I bet many European cars do as well. I would take it to a good hydraulic shop and see if they can at least measure it. Many of the pumps are made in Italy.
Bill D.

[Jeff Body]

Did you try ereplacement parts.com ?Put in the name and model number of your power washer to find a parts diagram

Tried there and came up empty handed

Here is the illustrated parts book for your pressure washer. The replacement water inlet fitting is contained in the Inlet Connection Kit part# E108324. You can order this kit from M & D Mower & Appliance - price is $25.39 plus $8.95 shipping. See the links below.

Excell Illustrated Parts Book.jpg
http://www.powermate.com/pdfs/2017/0...3100_parts.pdf
Excell pressure washer repair kits - E108324.jpg


https://www.m-and-d.com/PWM-E108324.html
E108324 Inlet Connection Kit.jpg

It is possible the part shown below might fit. If you're in no hurry, you could order it from Amazon for $13.99 with free shipping, and return it if it doesn't fit.

https://www.amazon.com/ROP-Shop-Reve...3&sr=8-1-fkmr2
Pressure Washer Water Inlet Tube.jpg

Another option would be McMaster-Carr, if you want to buy individual fittings in an attempt to duplicate your inlet fitting with garden hose connection.

https://www.mcmaster.com/brass-strai...-pipe-fittings
McMaster-Carr.jpg

Good Luck!!
David

So I didn't find that manual. The manual I found only gave an exploded view of the motor and showed the pump as 1 unit with no type of breakdown.
Thank you so much.
I did see that 2nd part you listed and thought about tring that. Looks like it had everything I needed but it was just longer.
I'm alittle torn because it looks like I can get a whole new pump for $80-100. I could steal the fitting off the new pump and have an extra pump incase I ever need one.

If google is your search engine, simply open a new tab while viewing this post and enter female hose to male pipe adapter in the address bar. Here is what came up for me.

If only it was that easy. The problem is, if you search those keywords all you get are NPT type fittings and this is an o'ring fitting with straight cut threads.

I working on a tractor, this past week, I found some problems with the hard hydraulic lines. There is one of these ORB fittings threaded into a machined casting, and onto that is threaded an SAE tapered end that one of the hard lines is screwed onto. The fitting was leaking where the o-ring is. After taking it apart, the o-ring was overcompressed, and torn, so that's where the leak was.

The flats on the ORB adapter are too narrow to get a regular wrench on, and use a flare nut wrench on the hydraulic hose. That's by design, and why "service wrenches" had short handles, which is to limit the torque one can put on them. In this case, you hold the fitting with a service wrench, and then tighten the SAE fitting with a flare nut wrench. The leak was caused because someone tightened the SAE fitting with a regular wrench, overtightening the o-ring in the process. I'm replacing all the hard hydraulic lines because all the ends have been distorted by using a regular wrench, and too much torque. A regular wrench might fit one set of flats, but the next set of flats around, are oversized because of the distortion. It really doesn't take much torque on either of these type of fittings. Long story shortened, only use flare nut wrenches on compression fittings, regardless of their size.

This doesn't apply to this adapter, other than limiting the amount of torque put on the o-ring when you put it back in.

Here's a torque chart I found:

https://www.new-line.com/information...ulic-couplings

and a nomenclature chart:
https://www.hydraulicsdirect.com/Fit...art-s/1934.htm

This makes sense because I was really surprised when I went to extract the broken piece. I was expecting it to give me problems but before I could even put a wrench on the extractor the fitting loosened up using my fingers. This means to me it doesn't take much torque to seal up.

[David Buchhauser]

So I didn't find that manual.

Once more - here is the illustrated parts book.
http://www.powermate.com/pdfs/2017/0...3100_parts.pdf
Page 17 clearly shows the inlet connection parts (parts 29, 30, & 31) in the exploded diagram for the pump service kits.
Kit A - Inlet Connection Kit (Part #E108324) is the kit which contains the parts you need.
This kit is available for purchase here:
https://www.m-and-d.com/PWM-E108324.html
Cost is $25.39 plus shipping. If you are OK with spending the $80 to $100 for the complete replacement pump, then by all means go for it.
David

[Tom M King]

I would look for a better quality connection than that original one. I'd get an ORB adapter that goes to NPT on the other end, and has flats for a service wrench. Also get a water hose to NPT that would fit with the NPT threads in the new ORB adapter. Tighten the two NPT threads together, and then install the o-ring fitting.

That original one looks like fast and cheap were the main priorities in its construction, and that's why it failed. There are much better fittings for both ends. The hose connection on my Mi-T-M pressure washer has never been changed, and it's seen hundreds of hours of hard use since I bought it new in 1996. It's a commercial unit though.

If you don't have a way to measure what size, and pitch the threads are on the ORB, go to a hardware store, like Ace, and you should be able to figure it out. I checked Google, and no shortages of ORB to NPT, or NPT to water hose in good quality parts.