ABS vacuum rating
ABS vacuum rating
(OP)
I need to find out the pressure ratings for ABS piping.
I tried the ABS web page and no luck. Googled it and no luck either.
Basically, I have 3", sched40 ABS piping for a vacuum application. I need to know how much vacuum this pipe can handle.
Full vacuum maybe?
Does anyone know where I can find the answer?
I tried the ABS web page and no luck. Googled it and no luck either.
Basically, I have 3", sched40 ABS piping for a vacuum application. I need to know how much vacuum this pipe can handle.
Full vacuum maybe?
Does anyone know where I can find the answer?
<<A good friend will bail you out of jail, but a true friend
will be sitting beside you saying " Damn that was fun!" - Unknown>>





RE: ABS vacuum rating
http://ww
Might give them a call to see what they're really talking about.
**********************
"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: ABS vacuum rating
The one I am looking specs for is the ABS, Acrylonitrile-Butadiene-Styrene (I can barely pronounce it).
These two would not be the same, would they?
<<A good friend will bail you out of jail, but a true friend
will be sitting beside you saying " Damn that was fun!" - Unknown>>
RE: ABS vacuum rating
**********************
"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: ABS vacuum rating
This Guide specifies the ABS requirements for the certification of offshore pipes and piping components that are made of fiber reinforced plastics (FRP).
GUIDE FOR CERTIFICATION OF FRP HYDROCARBON PRODUCTION PIPING
SYSTEMS MAY 2005
American Bureau of Shipping
RE: ABS vacuum rating
JLSeagull, what do you mean that ABS can be FRP? Are you referring to an ABS/FRP meaning that the ABS is reinforced with fiberglass?
<<A good friend will bail you out of jail, but a true friend
will be sitting beside you saying " Damn that was fun!" - Unknown>>
RE: ABS vacuum rating
Does anybody has a copy of a table where I can see pressure ratings of different diameters vs. temperature?
I am looking to see what the max vacuum for a 3" sched 40 ABS pipe is.
<<A good friend will bail you out of jail, but a true friend
will be sitting beside you saying " Damn that was fun!" - Unknown>>
RE: ABS vacuum rating
**********************
"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: ABS vacuum rating
The vacuum condition that can be met depends upon whether it is aboveground or below ground. For the latter the soil and embedment contribute to keeping the pipe round and hence it is able to withstand high external pressures.
If above ground then the contribution rom the soil is ignore.
ABS piping to AS 3518 is made by Eurapipe in Australia & Malaysia. This ABS is different grade to that using ASTM materials. however the technical manual from this website from below will serve you needs.
http://w
RE: ABS vacuum rating
I've used 3" and 4" foam-core ABS DWV pipe (and associated fittings of ABS and/or PVC in Sch. 10, 40, 80) for vacuum system, up to ~28 inHg, without ever having seen the pipe or fittings collapse. All at essentially room temp., perhaps 80 deg. F max.
But, as far as a specification that gives rating for vacuum, I have not seen such. ABS foam core pipe is intended to be low-pressure Drain/Waste/Vent conduit, having no rated pressure. I would think, given the use as drain pipe, it should be able to handle a high vacuum (i.e. when siphoning occurs)...
Obviously, you could calculate the collapse pressure, but it would be tricky to do so with the foam core pipe due to the difficulty involved in estimating/measuring the effective modulus of the foam, and not sure how repeatable the section modulus would be.
Sticking a chunk of ABS pipe, capped, into a larger piece of (say) 6" steel pipe, and doing a hydrostatic crush test (filling/pressurizing the 6" pipe) on the 4" pipe section would be a fairly simple test, and would tell you what kind of margins you might have.
RE: ABS vacuum rating
**********************
"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: ABS vacuum rating
Big Inch, I like your idea and I am sure the guys at the plant will enjoy doing it.
<<A good friend will bail you out of jail, but a true friend
will be sitting beside you saying " Damn that was fun!" - Unknown>>
RE: ABS vacuum rating
**********************
"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: ABS vacuum rating
<<A good friend will bail you out of jail, but a true friend
will be sitting beside you saying " Damn that was fun!" - Unknown>>
RE: ABS vacuum rating
I bet 10 to 1 it doesn't collapse.
**********************
"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: ABS vacuum rating
<<A good friend will bail you out of jail, but a true friend
will be sitting beside you saying " Damn that was fun!" - Unknown>>
RE: ABS vacuum rating
But then you won't have any idea how much margin you might have.
I would agree, at 10:1 or any odds you want, that it won't collapse, at any length, at up to 32 inHg.
RE: ABS vacuum rating
The acronym "FRP" stands for Fiberglass Reinforced Pipe. Acrylobutylnitrile (ABS) pipe is certainly NOT AN FRP. ABS pipe is (& was) developed specifically for plumbing use - primarily in drain, waste, & vent (DWV) applications. It can be used for a lot of other applications. I've even used it in irrigation and chemical drains.
In order to find the vacuum rating(s) for this pipe, I suggest you contact or call:
Plastic Pipe and Fittings Association
800 Roosevelt Road
Building C, Suite 312
Glen Ellyn, Illinois 60137
Phone: (630) 858-6540
Fax: (630) 790-3095
They have a website, but the registration part that allows you to access their engineering literature is not working.
It is common to use ABS pipe on a vacuum pump or a vacuum lift in evacuating sumps and septic tanks. In such applications, it is certainly not a possibility to produce a "full vacuum" (-760 mm mercury column). Full vacuum takes a special vacuum pump. What I believe you are referring to is drawing a partial vacuum - which unfortunately most engineers label as a vacuum and assume this is a full vacuum. A full vacuum can be drawn in a test - exactly as Big Inch specifys: by filling a vertial, capped, 35+ foot-long ABS pipe section 100% full with water and draining the bottom. You will draw a perfect vacuum - or so close, it's not worth measuring.
I don't believe a conventional 3" ABS pipe will withstand a full vacuum - but it will withstand a partial vacuum (which may be all you need). How much of a partial vacuum? Call the PPFA and find out.
RE: ABS vacuum rating
**********************
"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: ABS vacuum rating
ABS I understand always stands for a 'Co-Polymerized plastic product of Acrylonitrile,Butadiene and Styrene.The Tyco pdf also confirms the same.
As such definitely it is not a FRP indeed!
Best Regards
Qalander(Chem)
RE: ABS vacuum rating
I would not expect less than 300mmHg. In any event, the site has agreed to put a piece of pipe at the vac's hose and giv'er!!
I do not expect it to collapse. By the way, I chose to use the PVC piping instead due to material compatibilities.
<<A good friend will bail you out of jail, but a true friend
will be sitting beside you saying " Damn that was fun!" - Unknown>>
RE: ABS vacuum rating
What kinda money you throwin' down, I want some of that action too.
RE: ABS vacuum rating
RE: ABS vacuum rating
PVC 2" sched 40 pipe
Vac's capacity 0.3 atm (at best)Temp: about 15ºC
No fluid will be sucked during the trial
But I'm the broker, so I take 10% on the bets, eh!
<<A good friend will bail you out of jail, but a true friend
will be sitting beside you saying " Damn that was fun!" - Unknown>>
RE: ABS vacuum rating
...just in case anyone missed it ...
... ... in my response after Biginch mentioned his error ...
... ... a smiley face exists next to my post mentining the ABS (American Bureau of Shipping) certification requirements for FRP piping.
I appologize if it was not sufficiently obvious. Where are the Brits when one tries to invoke a bit of humor anyway?
RE: ABS vacuum rating
Ya!
British humor at its finest
-------------------------------
I'll take on all comers at 10:1 that a 2" x S40 PVC survives whatever vacuum that truck can put on it at 15ºC, provided its round when you start the test. Now's your chance.
**********************
"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: ABS vacuum rating
1: 3ft. long pipe connecting to pump was slightly oval, work fine for about 6 months before imploding.
2: capped the end of a 30ft. long pipe with an elbow at the other end, then another 8ft. of pipe and a tee. worked for a few years before the cap imploded and traveled fast enough to bust thru the elbow and the tee, sending several pieces of pvc into the insulation on the wall.
Never had a problem with 2 inch or smaller.
RE: ABS vacuum rating
A 2"xS40 should be good to about -279 psi.
**********************
"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: ABS vacuum rating
There isn't much room for 'newbie's ' like me uttering their tiny voice(s)
Still I add little bit; The case for vacume application of plastic pipes might be and most usually is 'TRUE'
only for smaller diameters and Not very long pipeline lengths at near ambient temperature(s) of moderate weather conditions.
Hope this summarizes.
Best Regards
Qalander(Chem)
RE: ABS vacuum rating
John
RE: ABS vacuum rating
<<A good friend will bail you out of jail, but a true friend
will be sitting beside you saying " Damn that was fun!" - Unknown>>
RE: ABS vacuum rating
RE: ABS vacuum rating
However, being completely ignorant of the book you referred before, will not those equations consider external loading as the weight of the soil?
This is unchartered territory for me, but as I see things, you will have the load of the earth on a buried pipe compressing it; while at the same time, it will help prevent the pipe from losing its roundness.
In my case, nothing would prevent the pipe from losing its shape other than its own mechanical strength.
Well, I guess you can also consider the atmospheric pressure the same as the earth loading.
This is a one time for me, so I do not think I will buy the book, but I will keep it for reference.
Thanks
<<A good friend will bail you out of jail, but a true friend
will be sitting beside you saying " Damn that was fun!" - Unknown>>
RE: ABS vacuum rating
RE: ABS vacuum rating
It comes from waste most producing facilities and tank farms have. It ends up in our tanks, we recover as much oil as possible, which is mainly crude of very varied characteristics, and the solids left at the bottom of the tank, in every turn around, are cleaned with the vac truck.
So this pipe will man handled all the time. Basically I want just to make sure that the operator does not loose the gloves or coveralls while sucking the bottoms.
<<A good friend will bail you out of jail, but a true friend
will be sitting beside you saying " Damn that was fun!" - Unknown>>
RE: ABS vacuum rating
Somehow I am not inclined to accept that the plastic pipes may have sufficient withholding strength to stand vacuum conditions in real situations.Unless specially designed for the service.
As we have seen vacuum conditions disastrous effect in industry on many otherwise strong vessels/tanks/containers subjected to vacuum conditions incidentally or unplanned(without specific design) etc.
However the particular service application you referred in most recent posts involving partial vacuum may be practical although with a much shortened life cycle.
Hope this helps.
Best Regards
Qalander(Chem)
RE: ABS vacuum rating
It will withstand -280 psi as long as you can keep it round, manhandling stresses low, and the rest of the properties intact.
That's equivalent to like 19 atmospheres of "vacuum".
I think it'll work for long enough.
**********************
"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: ABS vacuum rating
I know my truck will not even achieve full vacuum, but... other than theoretically, can you actually achieve vacuum below 0mmHg? (on earth)
<<A good friend will bail you out of jail, but a true friend
will be sitting beside you saying " Damn that was fun!" - Unknown>>
RE: ABS vacuum rating
<<A good friend will bail you out of jail, but a true friend
will be sitting beside you saying " Damn that was fun!" - Unknown>>
RE: ABS vacuum rating
How's this one?
**********************
"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/