RE: tandem blow off valves

From: <Kenrick>
Date: Thu Mar 08 2001 - 02:15:00 EST

HI Paul,

Why can't I get on the website www.pipingdesign.com it keep refreshing.

-----Original Message-----
From: Paul Bowers [mailto:pbowers@pipingdesign.com] Sent: Monday, March 05, 2001 8:11 AM
To: <a href="/group/PipingDesign/post?postID=kWYBW4iMYtum640QhPJA7OZorvsvvQfgyaBaR-bJ689838wRk-IhuPVdjDdIWJpWG4KScro0Qo-d9Tu63EhcnPrVOHCXT3A">PipingDesign@yahoogroups.com</a> Cc: hdfx
Subject: Re: [PipingDesign] tandem blow off valves

These URLs might help:

<a href="http://www.yarway.com/products/boiltrim/pages/blow-off.htm">http://www.yarway.com/products/boiltrim/pages/blow-off.htm</a>

and from
<a href="http://www.me.cc.va.us/dept/ietech/water_wastewater/distance_learn">http://www.me.cc.va.us/dept/ietech/water_wastewater/distance_learn</a> ing/courses/CIV240/blowoff_valves2.htm

"Purpose of Blow-off Valves

Since blow-off valves are installed at low points of the boiler water system, it is obvious that one of their principal uses is to help remove suspended solids or impurities, particularly those that tend toward sedimentation. Secondarily then, it is also obvious that is blowing down, a portion of the boiler water is discharged thereby reducing the water level in the boiler. This function therefore aids as a safety measure, in avoiding carryover of water from the main steam drum in the event of high boiler water-level for whatever reason. A third use of these valves, but far less frequent, is the introduction of boiler cleaning acid to the boiler, and again draining of this acid after the boiler is acid-washed. Many boiler operators choose to pump this fluid through the blow-off valves, since they usually are a handy means of ready access to the boiler."

I've added the second link to the Manual Valves page at <a href="http://www.pipingdesign.com/manualvalves.html">http://www.pipingdesign.com/manualvalves.html</a>

Paul

• Original Message ----- From: ANUP ACHARYA <anup_ach@vsnl.net> To: <PipingDesign@yahoogroups.com> Sent: Sunday, March 04, 2001 12:33 PM Subject: [PipingDesign] tandem blow off valves

> hye ,
> i have been asked to procure tandem blow off valves,
> i havent a faintest idea what they are,
> if any bodys gat an idea of what they are
> email me please
> anup acharya
> jacobs engineering
> india

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Your use of Yahoo! Groups is subject to <a href="http://docs.yahoo.com/info/terms/">http://docs.yahoo.com/info/terms/</a> Received on Thu Mar 08 02:15:00 2001