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9 comments
Participant

Join Date: Oct 2008
Posts: 1

different types of valves found in a refinery

10/23/2008 10:41 AM

I am doing some research on some different types of valves possibly found in a oil refinery. I need some help obtaining some basic information on the following: chain operated valves, fail closed, fail indeterminant, fail open, fail locked, normally closed, gear operated valves, full port valves, lock out, and lock closed. I know there is alot but if you could share some information you know about a few of them it would be helpful. I pretty much know nothing about these so anything will help. Basic things like what they are used for, how they function and what type of instances are they used in is what I am looking for.

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Pathfinder Tags: oil refinery valves
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Anonymous Poster
#1

Re: different types of valves found in a refinery

10/23/2008 12:08 PM

Please see this site for a free book:

http://www.documentation.emersonprocess.com/groups/public/documents/book/cvh99.pdf

In regards to fail open/closed, locked out, locked closed, etc ......... that is function of the process and safety.

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Power-User

Join Date: May 2005
Posts: 161
Good Answers: 2
#2

Re: different types of valves found in a refinery

10/23/2008 11:17 PM

Some quick comments to get you started:

Chain operated valves are usually up high in a pipe rack and instead of a handle, they have a chain hanging down to operate it without climbing up in the pipe rack or getting a ladder....

Fail closed=when signal is lost or power or air the valve will close. An example is the steam valve on a heat exchanger, in the event of an emergency shutdown, such as a power outage, usually you want the heat off, so the valve fails in the safest mode or closed.

Fail open = when signal is lost or power or air the valve will open. An example would be cooling water control valve, you don't usually want to lose cooling during an emergency so it fails open.

fail indeterminate = no one knows what it will do when the signal is lost or power or air.

fail locked = when signal is lost it stays in the last position whatever that may be.

normally closed = during normal operation this valve will be closed, sometimes the body will be darkened in on a P&ID drawing or a NC will be below the valve depicted on the drawing to show this.

Gear operated = gear are used to give the operator of the valve a mechanical advantage in order to close the valve, usually on large valves.

Lock out = a tag is placed on the valve with a lock to keep someone from inadvertently opening it, a safety program.

lock closed = a tag, chain and lock, carseal, or other means to keep someone from causally opening a valve, or inadvertently opening, not a normal operation, several people will be involved in order to open a lock closed valve.

Hope this gets you started.

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Guru
Engineering Fields - Piping Design Engineering - New Member Egypt - Member - Member since 02/18/2007

Join Date: Feb 2007
Location: Cairo, Egypt
Posts: 1746
Good Answers: 240
#3

Re: different types of valves found in a refinery

10/24/2008 11:23 AM

A. The following site is free download : Control Valve Handbook .

B. For all valves, I have a very interesting handbook "Valve Selection Handbook" in PDF format, 337 pages with size 43 M, how can I send it?

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Guru
Engineering Fields - Piping Design Engineering - New Member Egypt - Member - Member since 02/18/2007

Join Date: Feb 2007
Location: Cairo, Egypt
Posts: 1746
Good Answers: 240
#4
In reply to #3

Re: different types of valves found in a refinery

10/24/2008 12:54 PM

Additional site free downloading of valves' datasheets, includes the following valves (Ball, Check, Gate, Globe, Plug and Butterfly), API valves, DIN valves, Flanges, and more.

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Participant

Join Date: May 2009
Posts: 1
#5
In reply to #3

Re: different types of valves found in a refinery

05/05/2009 1:12 PM

I am a trainee petroleum operator at the National Oil refinery of Cameroon.I found these information you posted very interesting.Unfortunately our training is done in French. Thsi ia a great hindrance to me I will be graetfull receiving any from of assistance from any body .The book on valve control will be of help to me.

Kind regards

Ngala Elvis

C. D .D

SONARA,

P.O BOX 365, Limbe

Cameroon

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Guru
Engineering Fields - Piping Design Engineering - New Member Egypt - Member - Member since 02/18/2007

Join Date: Feb 2007
Location: Cairo, Egypt
Posts: 1746
Good Answers: 240
#6
In reply to #5

Re: different types of valves found in a refinery

05/06/2009 2:56 PM

Dear tawe, please send me your e-mail.

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Anonymous Poster
#7
In reply to #3

Re: different types of valves found in a refinery

07/12/2009 12:24 AM

gr8 post dude.. really appreciate this.

thnx for d link. LONG LIVE U...!!!!

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Anonymous Poster
#8
In reply to #3

Re: different types of valves found in a refinery

07/27/2009 11:25 AM

hi sir my name rama krishna i am on piping lines and valves so your book may be useful to me,send it to my mail id "rami_vemuri@yahoo.co.in" so that i can download it

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Guru
Engineering Fields - Piping Design Engineering - New Member Egypt - Member - Member since 02/18/2007

Join Date: Feb 2007
Location: Cairo, Egypt
Posts: 1746
Good Answers: 240
#9
In reply to #8

Re: different types of valves found in a refinery

07/27/2009 3:41 PM

The following link is for free downloading of PDF file format "Valve Selection Handbook": http://www.4shared.com/file/121064139/74dd5b3d/Valve_Selection_Handbook_4th_Edition.html

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Users who posted comments:

Abdel Halim Galala (4); Anonymous Poster (3); shooter (1); tawe (1)

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