New log splitter pump fitting exploded.

[Edrrt]

I bought one of the 16gpm aluminum body pumps that are all over. Description says outlet port is 1/2 inch. I replaced a 11gom MTE on a Barreto log splitter.

First log the thing explodes and pushed the fitting right out of the threads.

The threads are partly stripped. I can move the fitting in and out no screwing now. But there is still threads left inside.

What gives? Are these some different thread size than the 1/2 inch MTE pumps use?

Or is this just defective?

 

[festerw]

I bought one of the 16gpm aluminum body pumps that are all over. Description says outlet port is 1/2 inch. I replaced a 11gom MTE on a Barreto log splitter.

First log the thing explodes and pushed the fitting right out of the threads.

The threads are partly stripped. I can move the fitting in and out no screwing now. But there is still threads left inside.

What gives? Are these some different thread size than the 1/2 inch MTE pumps use?

Or is this just defective?

View attachment 278315

If it was fully threaded and not leaking I'd guess just a bad part.

 

[Edrrt]

It threaded in by hand easily. When I tightened the lock nut it seemed soft. Like it was stripping so I didn't make it to tight. It didn't leak until the high pressure kicked in and it went BOOM and what a mess. I thought about bringing it to a hydraulic shop to see if it's some other thread size or having it tapped but I prob should just return it and buy the Dynamic pump my local shop sells for 2x the price.

 

[salecker]

It threaded in by hand easily. When I tightened the lock nut it seemed soft. Like it was stripping so I didn't make it to tight. It didn't leak until the high pressure kicked in and it went BOOM and what a mess. I thought about bringing it to a hydraulic shop to see if it's some other thread size or having it tapped but I prob should just return it and buy the Dynamic pump my local shop sells for 2x the price.

yes

 

[Edrrt]

I called a hydraulic supplier and they stated that all the pumps are half inch npt out. And that that fitting is straight thread with an o-ring and that it's not compatible?

That's how it came from the manufacturer and it was working on an mte pump.

Is this true? Do I need a different fitting?

 

[paulnlee]

All of their tolerance's are not the same as ours.

 

[hedge wood]

I called a hydraulic supplier and they stated that all the pumps are half inch npt out. And that that fitting is straight thread with an o-ring and that it's not compatible?

That's how it came from the manufacturer and it was working on an mte pump.

Is this true? Do I need a different fitting?

If that pump calls for a NTP fitting the one you used is straight cut with Oring is not going to work. If it didn't ruin the threads in the pump you can buy a fitting with NTP male and JIC or what ever fitting you have on the hose end. They also make bushing that will go from NTP to straight cut O ring also. Look on Surplus center web sight.

 

[Edrrt]

If that pump calls for a NTP fitting the one you used is straight cut with Oring is not going to work. If it didn't ruin the threads in the pump you can buy a fitting with NTP male and JIC or what ever fitting you have on the hose end. They also make bushing that will go from NTP to straight cut O ring also. Look on Surplus center web sight.

So you guys are right. I have the hydraulic shop get me a npt to jic elbow and it worked okay. I presumed all these log splitters pumps were the same since they all specify half inch in this class. I didn't know that they were using different thread types.

 

[Bad LP]

Sounds like you got what you paid for.
Pure junk just like 3/4’s of the crap that country ships here.
Buy American or at least not China junk. It’s not that much more in the big picture.

 

[jetsam]

There's a lot of threads on various forums about people being surprised that their imported stuff is BSP or metric.

US and Canada use NPT, everyone else does not. US, Liberia, and Myanmar (officially) use imperial measurements, everyone else does not. Though there's plenty of places that are stuck in the hell of using both imperial and metric fasteners.

Being raised on imperial stuff and having become familiar with both, I'm of the opinion that we're really nuts to stick with it. What a half ass crock of random stuff from hundreds of years ago across the sea. You need lookup tables to guess what size a fastener is after you measure it, and don't even get me started on 'gauge', which means something different to everyone. (With metric sheet metal and fasteners, you measure it and that is the size.)

 

[triptester]

Sounds like there was no problem with the pump. The original fitting was not compatible with the port that is commonly found on splitter pumps.

 

[JRHAWK9]

Sounds like there was no problem with the pump. The original fitting was not compatible with the port that is commonly found on splitter pumps.

yep, threaded straight threads into NPT. Should have known when

It threaded in by hand easily. When I tightened the lock nut it seemed soft. Like it was stripping so I didn't make it to tight.

That should have been the red flag.

 

[xman23]

This had me thinking of the hydro pump we had self destruct. The issue was was at startup, there was no oil pressure bypass. We didn't know it. The pump was driven by a 65 HP motor. The pumps rotors shredded to small chips.

 

[clancey]

OMG what dangerous stuff-------I take it back and buy American...clancey

 

[DeadTreeBurner]

OMG what dangerous stuff-------I take it back and buy American...clancey

Whelp, you just read the sensationalist title like Bad LP, and didn't bother reading much of anything in the thread. It wasn't a bad pump, and it didn't explode. The fitting blew out because he used the wrong thread type.

Chinese products have come a long way in terms of quality, although you can get junk from Chinese manufacturers. It's also hard to impossible to find American made products for some items. Because, we, as a country are DUMB. We've generally been happy to jump in bed economically with China which has greatly benefitted the Communist Chinese Party which is our enemy. We've not pressured our politicians to change course/policy over the decades. So we've lost much of our manufacturing capability, empowered the CCP who are our enemies, and have benefitted from the oppression of the Chinese worker. We had a brief wakeup call during Covid, but I expect things to go back as usual before too long.

 

[clancey]

I sure do agree..clancey

 

[salecker]

Yes every North American needs to wake up to the threat of the CCP
North America has been funding their war chest for the last 30 years,that really needs to stop.
When i grew up nobody bought goods from the USSR,because it was a communist country with only one objective,word domination.

 

[triptester]

Can't really blame the Chinese they are only filling the orders from American businesses that built or moved their manufacturing over there.

 

[JRHAWK9]

Can't really blame the Chinese they are only filling the orders from American businesses that built or moved their manufacturing over there.

....because of the average American consumer insisting on buying the cheapest over the course of many years. Instead of prioritizing quality over price they choose to do the opposite. The result is a race to the lowest price point.

 

[brenndatomu]

Can't really blame the Chinese they are only filling the orders from American businesses that built or moved their manufacturing over there.

True...best way to fix it is "vote" with our wallets...many people will keep on buying the cheapest crap they can find though...

 

[triptester]

Choices of American made getting limited. Many American brands are NOT made in America and they are not cheap , Milwaukee tools, Dewalt tools, Carhart clothing, the list goes on and on.

 

[begreen]

The Chinese can make anything we can make. If the specs are good and it hasn't been ordered to be cheap, then their products can be quite exceptional. If you buy cheap, you are going to get cheap. As noted, there was nothing wrong with the pump, the installation was incorrect. When the correct NPT pipe was used, no problem.

FWIW, I got a Makita 1/2 HD lithium-ion drill several years ago. Thought it was made in Japan, but it was made in China. At first, I was mad, the drill was quite expensive, but 11 yrs later that drill is still on the original batteries and has been an incredible workhorse. It has been used hard building our greenhouse, the woodshed and even the bridge project I helped with up north. Never a whimper or a problem. This drill was not cheap, but it certainly has been worth it.

I'm not pro-China, but only a fool would ignore the astounding accomplishments they have achieved in a few decades. They are very capable and hard-working people. The country’s massive economic transformation may be one of the most impressive events in human history.

 

[salecker]

It's the CCP that North America needs to fear
Just like most of the Chinese people fear them.

 

[begreen]

Yes, and on that note, closing thread. It has strayed off the point, which is that this could happen regardless of country of origin for the pump which was not the issue.