choke valve as PRV

Question

choke valve as PRV

ruble3 (Mining)

(OP)

29 Jul 03 09:13

Just looking for thoughts on using a 'control choke' as a pressure reducing valve- max pressure expected to be 475 psi
in and 90 psi out- clean water ( not oil or gas)- the usual PRV's have been a problem & these look to be more robust, although I haven't seen any applications outside the oil & gas business

Thanks

SixTuckerMoose (Civil/Environmental) · Answer 1 · 2003-07-30 23:39:08

You should check out the Bailey PolyJet valves from SPX, The pressure range is well within their range. 2000psi - 0psi.

ME

ruble3 (Mining) · Answer 2 · 2003-08-01 14:45:26

Looked at the Bailey Polyjet valves- will have to talk to them & see if they fit the application ( hopefully thay have a rep NOB ( North of the Border)- pipeline is basically a 7250' pipe string,6" diam, with 'tees' every 1100' or so- the standard PRV's tend to suffer from high maintenance issues
thanks tho!

Scipio (Mechanical) · Answer 3 · 2003-08-01 15:24:17

You might also want to look at Cameron Willis choke valves, never used them in liquid service but we use quite a few on natural gas sites to control gas flow into wellsite separators at pressures up to ANSI 1500#. I'm in northern Alberta, so I can confirm they're available NOB.

Check out Cameron's website, www.cameronwillis.com, and look for "Willis Chokes" under the Products & Services menu.

ruble3 (Mining) · Answer 4 · 2003-08-01 15:46:33

Hey Scipio-I'm in N.Ontario- those are the valves we have been looking at ( Cameron-Willis)-we've never tried them before & I don't know anyone that has in a straight water application - I assume they'll handle the service

Thanks

Scipio (Mechanical) · Answer 5 · 2003-08-01 16:42:05

Well, I've never seen them in straight water applications, we do get a lot of liquid slugs (emulsions of water & hydrocarbon liquid) coming up gas wells with plunger assists that have no problems coming through those valves though, so I can't see water posing them any great difficulty. Push comes to shove, ask the Cameron rep, Cameron is used quite extensively for valves out here in the upstream oilpatch, so I'd imagine they've got pretty knowledgable reps in your area too.

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choke valve as PRV