Mueller U-20808 Installation Instructions Manual
Mueller U-20808 Installation Instructions Manual

Mueller U-20808 Installation Instructions Manual

Non-adjustable vertical indicator posts

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Install atIon I ns t ru ct Ion s ma n u a l
U-20808
U-20809
Non-Adjustable
Vertical
Indicator
Posts
!
WARNING:
1. Read and follow instructions carefully. Proper training and periodic
review regarding the use of this equipment is essential to prevent possible
serious injury and/or property damage. the instructions contained herein
were developed for using this equipment on fittings manufactured by
Mueller Co., llC only, and may not be applicable for any other use.
2. Do not exceed the pressure ratings of any components or equipment.
exceeding the rated pressure may result in serious injury and/or property
damage.
3. Safety goggles and other appropriate protective gear should be used.
failure to do so could result in serious injury.

table of ContentS

Reliable Connections
Customer Service Center
Decatur, Illinois
800.871.2194
www.uspvh.com
support@uspvh.com
PaGe
2
3
4
5-6
7
8
TM

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Summary of Contents for Mueller U-20808

  • Page 1 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.
  • Page 2: General Information

    “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...
  • Page 3: Technical Data

    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.
  • Page 4: Dimensions

    VAlVe TUrNs sIze To oPeN 2” 4” 10.95” 2.40” 8” 14” 6” 14.91” 3.45” 8” 18.02” 4.53” U-20808/U-20809 indicator posts nominal installation dimensions 10” 21.62” 5.55” 12” 24.52” 6.60” 14” 29.13” 7.65” 16” 32.35” 8.70” wInDow CenteR lIne 18” 38.35”...
  • Page 5: Installation

    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...
  • Page 6 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”...
  • Page 7: Parts

    ” 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.
  • Page 8: Maintenance

    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.

This manual is also suitable for:

U-20809

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