CP400 Series
10
Figure 7. Typical CP404 Downstream Control Line Connection (Pressure Loading Regulator Not Shown)
Type CS404ET with Slam-Shut Module,
External Pressure Registration, and Token Relief
December 2008
CS400 Series
PRIMARY REGULATOR
20 INCHES / 0.5 m
DOWNSTREAM
BLOCK VALVE
SLAM SHUT
UPSTREAM
BLOCK VALVE
M1063
INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
high enough to damage downstream
equipment. Common methods of external
overpressure protection include relief
valves, monitoring regulators, shut-off
devices and series regulation.
If the regulator is exposed to an
overpressure condition, it should be
inspected for any damage that may have
occurred. Regulator operation below
the limits specied in the Specications
section does not preclude the possibility
of damage from external sources or from
debris in the pipeline.
General Installation Instructions
Before installing the regulator,
• Check for damage, which might have occurred
during shipment.
• Check for and remove any dirt or foreign material,
which may have accumulated in the regulator body.
• Blow out any debris, dirt or copper sulfate in the
copper tubing and the pipeline.
• Apply pipe compound to the male threads of the
pipe before installing the regulator.
• Make sure gas ow through the regulator is in the
same direction as the arrow on the body. “Inlet” and
“Outlet” connections are clearly marked.
Installation Location
• The installed regulator should be adequately
protected from vehicular trafc and damage from
other external sources.
• Install the regulator with the vent pointed vertically
down, see Figures 5 through 7. If the vent cannot
be installed in a vertically down position, the regulator
must be installed under a separate protective cover.
Installing the regulator with the vent down allows
condensation to drain, minimizes the entry of water or
other debris from entering the vent and minimizes vent
blockage from freezing precipitation.
• Do not install the Type CP400, CP403 or CP404 in
a location where there can be excessive water
accumulation or ice formation, such as directly
beneath a downspout, gutter or roof line of building.
Even a protective hood may not provide adequate
protection in these instances.
• Install the Regulator so that any gas discharge
through the vent or vent assembly is over 3 feet /
0.9 m away from any building opening.
(12 pages)
(1 pages)
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