I inherited a Honeywell D05T Compact Design Pressure Regulating Valve, and I want to decrease the whole house pressure that I measured to be 90+ psi at an outside bib. Unlike the bell-shaped valves with exposed adjusting screw and locknut by Watts and a host of other manufacturers, this valve is capped with a black plastic cylinder that prevents access to the locknut (see photo link below). There is an opening in the top of the cylinder providing exposure of the adjusting screw.
This valve's Installation Instructions does not even show or identify this cap in exploded view. Do I need to take a wrench to the faceted portion of the cap's base that might be threaded onto the metal body--I have not budged it trying this--or does the cap need to be removed in a diffeent manner?
Thanks in advance for your time and assistance. John

[www.google.com]

a question wrapped in an enigma

(previous guess removed)


NEW INFO:

my 'guess' was wrong

the honeywell valve is discontinued



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"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638



Edited 1 times.

Hi,
Even though I was able to simply turn the adjusting screw through the opening in the top and successfully decrease my whole house pressure right after my original post, I appreciate your looking for and finding this information. The DS05 in your post is incredibly even shorter than the D05T I have, but for those homeowners who have either valve, your sheet properly directs one to turn the access screw without accessing and loosening a locknut.
Appreciate your input.



Edited 1 times.

glad to be of help

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"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638