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Customer Service Center were developed for using this equipment on fittings manufactured by Mueller Co., llC only, and may not be applicable for any other use. Decatur, Illinois 2. Do not exceed the pressure ratings of any components or equipment.
“Special Ordered” for TYPICAL INSTALLATION OF: Valve Switch) will void its listings use with right hand opening valves U-20808: 4” - 14” Post Indicator Valves and approval. or converted in the field for use U-20809: 16” - 24” Post Indicator Valves...
Length” can also be calculated (see Upper Stem, Lower Stem, Coupling, tables on page 4). and Coupling Insert are carbon The U-20808 Indicator Post has a steel. The Targets and Sleeves are Threaded Sleeve which can readily “Standard Order” Posts are factory Nylon.
USPVH Valve size mark Top surface of not be performed when installing (10” Valve shown) OR threaded flange the U-20808 Post with a 6” USPVH set to Dimension “X” aligned with CT (see note 2). PIV (or with a PIV that requires...
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U-20808/U-20809 Non-Adjustable Vertical Indicator Posts Installation i) Remove the electrical continuity 10. Using the Wrench, open and the Locknut against the Post test leads. The external field close the valve and check to see Head to secure the Nipple firmly wiring connections can now be that the “SHUT”...
” x 1 ” 16 Threaded Sleeve 17 Upper Stem 18 Weather Cap 19 Retaining Ring rePlacement Parts 20 “OPEN” Target 21 “SHUT” Target 1. O.L. Post Head (U-20808) ..148692 Hex Head Cap Screw, -11UNC x O.R. Post Head (U-20808) ..148649 2 ” (4 req’d) O.L. Post Head (U-20809) ..241029 23 Hex Nut, -11UNC (4 req’d) O.R. Post Head (U-20809) ..241030 2.
U-20808/U-20809 Non-Adjustable Vertical Indicator Posts Maintenance care and maintenance NOTE: Before closing a fire Model U-20808/U-20809 Indicator 3. The Wrench is in place on the Posts do not require any regular protection system main valve for Indicator Post, and it is properly maintenance work on either the schedule maintenance.
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