- Location
- N.Lincs
I'll just leave this here .............just keep the rear window shut when your spreading.
I'll just leave this here .............just keep the rear window shut when your spreading.
Looking for wisdom, failing that ‘quick bodges and creations’.
Elderly but functional slurry tanker is beginning to implode.
If everything but the tank wasn’t working fine I’d probably scrap the thing but as it only gets occasional use for 3-4 loads at a time the sensible options are limited.
No point in buying a new one really and not enough work to call in a contractor.
I’m unlikely to be able to source a sensibly priced replacement tank ( unless anyone knows otherwise) which leaves one other option..
Can anyone think of an expanding foam/reinforcing layer of product that I could line the inside with to delay the decay?
Theoretically it’s just the rear dome that’s paper thin but I expect the main barrel won’t be far behind!
Loosing some volume is bearable.
Thanks
what sort of condition is the pump in aamoi ?Looking for wisdom, failing that ‘quick bodges and creations’.
Elderly but functional slurry tanker is beginning to implode.
If everything but the tank wasn’t working fine I’d probably scrap the thing but as it only gets occasional use for 3-4 loads at a time the sensible options are limited.
No point in buying a new one really and not enough work to call in a contractor.
I’m unlikely to be able to source a sensibly priced replacement tank ( unless anyone knows otherwise) which leaves one other option..
Can anyone think of an expanding foam/reinforcing layer of product that I could line the inside with to delay the decay?
Theoretically it’s just the rear dome that’s paper thin but I expect the main barrel won’t be far behind!
Loosing some volume is bearable.
Thanks
the vacuum will be much less than -15 psi, and should be less than -4psi. The positive pressure would also be around 7psi. But the shape of the tank means it is more likely to implode than explode. the sight glass is normally first to goIf the measly max-on-a-good-day of -15psi suction is causing it to implode, it is very likely to explode in blow mode. Scrap it before someone is hurt.
Sight glasses blow out though, mainly because the plastic gets brittle with age.the vacuum will be much less than -15 psi, and should be less than -4psi. The positive pressure would also be around 7psi. But the shape of the tank means it is more likely to implode than explode. the sight glass is normally first to go
1 bar is roughly 14.5 psi
Screenshot from the hispec manual
Local ag mechanic got a call to refit a front window, chap had got out to open a gate between two fields, left the PTO running and the back window open.I'll just leave this here .............
I think I can weigh in here, pressure vessels are part of my day jobPressure system safety regulations apply I believe. No specific knowledge, but I'd expect that periodic inspection by a competent person would be a requirement, and embargo of anything that doesn't look right would be mandatory. I think in terms of the regs, it's a case of of you have to ask, you already know the answer.
I think I can weigh in here, pressure vessels are part of my day job
The Pressure Equipment Directive PED (now PESR post brexit) applies when building these tankers, but the Pressure Systems Safety Regulations (PSSR) do not apply, Schedule 1, regulation 3(2) point (19) specifically excludes slurry tankers.
So, no formal periodic inspection by competent person. Just the informal inspection by the user, making sure it's not about to fail altogether.
You just have to maintain it to a good enough standard to prevent harm to anyone in the event of a foreseeable failure.
I think I can weigh in here, pressure vessels are part of my day job
The Pressure Equipment Directive PED (now PESR post brexit) applies when building these tankers, but the Pressure Systems Safety Regulations (PSSR) do not apply, Schedule 1, regulation 3(2) point (19) specifically excludes slurry tankers.
So, no formal periodic inspection by competent person. Just the informal inspection by the user, making sure it's not about to fail altogether.
You just have to maintain it to a good enough standard to prevent harm to anyone in the event of a foreseeable failure.
In this case, the OP is savvy enough to have carried out his informal inspection (ie he used his eyes!) and spotted a problem indicating it IS going to fail in the somewhat near future.
I would respectfully suggest he stops using it and gets another tanker. If it fails at a bad time and causes damage to people/property through leaking/spraying slurry everywhere, or whatever, he's directly liable for that.
If it's not leaving his property and can only leak onto his own fields, then probably no harm done... but why delay the inevitable? Why would you wait into it's totally unusable and you have a load of slurry to spread, before looking around for a replacement? It's just common sense IMO.
I'll just leave this here .............
Described in a way only an Irishman can.Imploded tanker https://photos.app.goo.gl/h5kt12g3S7FYWvPv7
good we have someone that knows something about pressure
i have a question, how come tankers typically implode rather than explode
Love it when someone can quote chapter and verse. Thanks for clarifying; at least I was looking in the right place, even if I got the wrong answer...
I read up-thread that slurry tankers operate at a positive pressure of 1bar; does that put them outside the scope of PSSR anyway?
Does PSSR apply to pressures below 0 gauge (i.e. vacuum), or is it just things that can explode?
(Also, as a matter of interest, what's your day job?)