RE: [PipingDesign] choices Vacuum Breaker for Slurry Pipeline

From: <Steve>
Date: Tue Jul 29 2008 - 23:35:00 EDT

Thanks Al

The T1 is exactly the style I'm after. Half a Tech Taylor - it'll probably last for ever.

Cheers

Steve

To: PipingDesign@yahoogroups.comFrom: altecheng@shaw.caDate: Tue, 29 Jul 2008 21:22:40 -0600Subject: RE: [PipingDesign] choices Vacuum Breaker for Slurry Pipeline

Krebs is the most popular (and successful) up herehttp://www.camese.org/company.cfm?task=display<http://www.camese.org/company\ .cfm?task=display&itemid=2075>
&itemid=2075orhttp://www.flsmidthminerals.com/Products/Pumps+and+Valves/Valves/V\ acuum+Breaker+Valves/Vacuum+Breaker+Valves.htm_____ From: PipingDesign@yahoogroups.com [mailto:PipingDesign@yahoogroups.com] OnBehalf Of Steve McKenzieSent: July 29, 2008 8:42 PMTo: pipingdesign@yahoogroups.comSubject: [PipingDesign] Vacuum Breaker for Slurry PipelineHi thereCan anyone refer me to a supplier of vacuum breakers suitable for slurryservice on a cross country pipeline?I've tried using both water pipeline vacuum breakers and preloaded checkvalves on a standpipe, but both eventually jam up from the slurry grit.Something like a hollow (floating) urethane coated ball in a verticalchamber with top orifice should do the trick.ThanksSteveTo: pipingdesign@
<mailto:pipingdesign%40yahoogroups.comFrom>yahoogroups.comFrom: gyro-@hotmail.
<mailto:gyro-%40hotmail.comDate>comDate: Mon, 28 Jul 2008 11:33:53 +0000Subject:
RE: [PipingDesign] Re:Position of valves(ball valves and globe valves)Hi Michael"It makes no difference which way we do it" is a phrase whichchills my blood, as there is almost always a different outcome to adifferent method choice. For example, if upstream service isolation is notthe decider, then ease of operation, location of drip tray, installing firstthe valve which arrives on site first, operators preference, standardizationof layout, ease of assembly - the list is endless althought the benefit maybe small. Theres nearly always a reason if some thinking is done. I suspectyour engineer is too lazy-minded to think through the question. Your grainof salt is probably insufficient; I suggest a bucket. Round thehead.CheersSteveTo: PipingDesign@<mailto:PipingDesign%40yahoogroups.comFrom> yahoogroups.comFrom:mroble@spcdmg. <mailto:mroble%40spcdmg.comDate> comDate: Mon, 28 Jul 200807:13:18 -0400Subject: RE: [PipingDesign] Re: Position of valves(ball valvesand globe valves)I know when I've routed some pipe with these valves, I'VEpreferred the ballisolation valve first. Being as this was me as-builting,when I had askedthe engineer why they were different and there was a purposehe told me itmade no difference. I took what he said with a grain of salt,and moved on,was my job to as-built, not to re-engineer.From: PipingDesign@<mailto:PipingDesign%40yahoogroups.com> yahoogroups.com[mailto:PipingDesign@
<mailto:PipingDesign%40yahoogroups.com>yahoogroups.com] OnBehalf Of Steve
McKenzieSent: Monday, July 28, 2008 3:52AMTo: pipingdesign@
<mailto:pipingdesign%40yahoogroups.comSubject>yahoogroups.comSubject: RE:
[PipingDesign] Re: Position of valves(ballvalves and globevalves)There is frequently a preference to use the ballvalve as a serviceisolation valve to permit removal of the globe valve forservicing withoutdecommissioning the entire (upstream) system.CheersSteveTo: PipingDesign@
<mailto:PipingDesign%40yahoogroups.comFrom>yahoogroups.comFrom<mailto:PipingDesi\
gn%40yahoogroups.comFrom> :sviswan@technip.
<mailto:sviswan%40technip.comDate>comDate<mailto:sviswan%40technip.comDate> :
Mon, 28 Jul 2008 08:34:21+0400Subject:Re: [PipingDesign] Re: Position of valves(ball valves and globevalves)The query was regarding the sequence of installation of the valvesintheflow direction.Sajit"Michael Roble"
<mroble@spcdmg.<mailto:mroble%40spcdmg.co> co<mailto:mroble%40spcdmg.co> m> To
Sent by:PipingDesign@
<mailto:PipingDesign%40yahoogroups.com>yahoogroups.com<mailto:PipingDesign%40yah\
oogroups.com> PipingDesign@yaho ccogroups.comSubject [PipingDesign] Re: Position of 28/07/08 07:42 AMvalves(ball valvesand globe valves) Please respond to PipingDesign@yahoogroups.com >>Whicharrangement is the correct one.<<I guess it reallywouldn't matter which waythey were oriented seeingas the ball valves'purposes are to shut off, andthe globe valves'purposes are to throttle.Ijust saw recently at a powerplant they had me as-builting and on thefuel-oilline on each take-off foreach burner they had varyingarrangements of a ballvalve, solenoid valve anda globe valve. Each ofthose three were present atall burners, just onefloor had ball,solenoid, glove... and the other threefour floors had ball,glove,solenoid. Apparently, from what I was told itmakes no differenceinthe end.Save a tree...please don't print this e-mailunless you

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[Non-text portions of this message have been removed] Received on Tue Jul 29 23:35:00 2008

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