12 May 2003
Including change 1, 19 January 2007
Valves and Thermostats
. Select single-seated solenoid valve shaving
flow constants suitable for bleeding proper quantities of water in the prescribed interval.
Temperature sensors should be atmospheric or surface type and sense water
temperature not ambient air temperature. Thermostats may be bimetallic, thermistor, or
resistance (RTD) type, having differentials of -16.6 oC (2 oF) to -15 oC (5 oF).
Primary Identification. Identify each valve on a pier, wharf, or drydock
by a plain language brass tag, and labeled. (Example: "potable water" or "sewer".)
Additionally, at each shore-to-ship utility connection, name plates or stenciled letters
near the connection must identify the utility in plain language.
Color Coding. Two sources of design requirements govern color-coding
for pier, wharf, and drydock piping.
Distribution Piping On or Under Deck and Ashore. Such piping,
exclusive of shore-to-ship utility connections, must be color coded in accordance with
MIL-STD-101, "Color Code for Pipelines and for Compressed Gas Cylinders".
Applicable requirements must be specified in the design documents.
Shore-to-Ship Utility Connections. Such piping (including valves,
operating levers, ends of hose assemblies, risers, and adjacent piping) must be
specified to be color-coded in accordance with Table 6-1. Color-coding may also
extend to adjacent curbs, protective rails, posts, and walls.
OPERATIONAL NOTICES. Provide the following operational notices.
Consult with the Activity and the cognizant NAVFAC EFD/EFA OR USACE DISTRICT
regarding other desired notices, nameplates, warning signs, and so forth.
Bleed systems must be marked with the following warning:
"Freeze protection valve.
Water will flow below 35 degrees F.
Do not close."
Heat tape systems must be marked with the following warning:
"Heat tape system (self limiting).
Do not disconnect power."