Hi, Had a bit of a problem at work yesterday but thankfully we were pretty much done with the house slab. Had a bit of blockage(concrete in the hose dried up a bit and the pump was pushing it out at approx 1500-1800psi when this loud bang and the hopper being rattled around a bit, scared the aggi driver and myself. This is what happened.

I'm confused what they are called, I think it's Rock Valve since I was told that but I've been checking around it seems like it's S-Tube. Could someone confirm this for me please.

This is on a Line pump, not a boom.
Thank you.

it's fucked, that is what it is, lol, sorry Todd, it's a broken piece of s tube, not much meat there, she's done some work.

Man that was getting thin no repairing that baby better check other parts for wear while fixing your pump.

 Yeah that is pushing an S-tube a little far. Schwing has the rocks. What I dont like about the S-tubes is there isnt enough room to put hard facing inside it.

Putz has hardfacing on some.
Would like to see the face on the mixer driver when that thing went BOOM! :D

Been there! at least you were close to done,not much field repair can be done.

Forget about repairing that S-tube, buy a new one. Better check out the work boot section ....... like those air conditioned boots !!!!!

I do belive tou got all your dollers worth out of that tube a little maintanence and inspection will help you from having those kind of oh shit situations

Oh yea, we had the pump stripped down, inspected about 2 months ago, was told it was all good to go! I knew it was beyond repairable, it'll be sitting in the shed as a trophy! Have a new S-Tube in now and back pumping again!
As far as I know this is probably the 2nd S-Tube on this pump over the last 5 years.

Oh yea, we had the pump stripped down, inspected about 2 months ago, was told it was all good to go!

A lesson learned,one couldn't ask for a better ending.Job finished and no injuries,count your blessings.

I never seen a rock valve do that, S tubes seem to have alot of problems to me I am a schwing man thru and thru

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