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Hello Peter,<br>
You want a Watts Regulator.<br>
<br>
Here's the link: <a
href="http://www.watts.com/pro/_products_sub.asp?catId=64&parCat=285">http://www.watts.com/pro/_products_sub.asp?catId=64&parCat=285</a>
<br>
<br>
Good Luck<br>
<br>
Peter Parrish wrote:
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<p class="MsoNormal"><font color="black" face="Times New Roman"
size="3"><span style="font-size: 12pt; color: black;">We are getting
ready to install a SDHW
system for a customer and we looked at a number of things regarding his
current
set up. I just posted a question about tankless heaters but I wanted
this query
to be a separate one. The customer’s mains water pressure is 88 psi on
a
Saturday afternoon and some time over the next 18 hours, the pressure
went as
high as 96 psi. I understand that 80 psi is the high end of the safe
range in
general and that 96 psi on a regular basis can/will damage valves and
possibly
trigger T&P valves on water heaters.</span></font></p>
<p class="MsoNormal"><font color="black" face="Times New Roman"
size="3"><span style="font-size: 12pt; color: black;"> </span></font></p>
<p class="MsoNormal"><font color="black" face="Times New Roman"
size="3"><span style="font-size: 12pt; color: black;">At the
recommendation of a plumber I know
I looked into pressure reducers, specifically the Wilkins/Zurn line.
All the
Wilkins regulators produce zero pressure drop at zero flow. What good
are these
products in protecting plumbing systems from high mains pressures at
night when
pressures tend to be the highest and usage is at a minimum or even zero?</span></font></p>
<p class="MsoNormal"><font color="black" face="Times New Roman"
size="3"><span style="font-size: 12pt; color: black;"> </span></font></p>
<p class="MsoNormal"><font color="black" face="Times New Roman"
size="3"><span style="font-size: 12pt; color: black;">Are there
products that will prevent system
pressures from exceeding a set point (e.g. 60 psi) under any flow
condition including
zero? </span></font></p>
<p class="MsoNormal"><font color="black" face="Times New Roman"
size="3"><span style="font-size: 12pt; color: black;"> </span></font></p>
<p class="MsoNormal"><font color="black" face="Times New Roman"
size="3"><span style="font-size: 12pt; color: black;">- Peter</span></font></p>
<div>
<p><font color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: navy;">Peter T.
Parrish, President<br>
California Solar Engineering, Inc.<br>
820 Cynthia Ave., Los Angeles, CA 90065<br>
Ph 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885<br>
CA Lic. 854779, NABCEP Cert. 031806-26<br>
<a class="moz-txt-link-abbreviated" href="mailto:peter.parrish@calsolareng.com">peter.parrish@calsolareng.com</a></span></font><font color="blue"
face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color: blue;"> </span></font></p>
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<pre class="moz-signature" cols="72">--
Dean T. Newberry
Talbott Solar & Radiant Homes Inc.
430 D Street
Davis, CA 95616
T: 530 219-3606
F: 530 758-8187
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W: <a class="moz-txt-link-freetext" href="http://www.TalbottSolar.com/">http://www.TalbottSolar.com/</a>
<a class="moz-txt-link-freetext" href="http://www.TalbottRadiant.com/">http://www.TalbottRadiant.com/</a>
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