under enclosed conditions or indoors,
escaping gas may accumulate and be
an explosion hazard. In these cases,
the vent should be piped away from the
regulator to the outdoors. See vent line
Installation section for the recommended
venting practice.
CauTIoN
CSB700 Series regulators have an outlet
pressure rating lower than their inlet
pressure rating. If actual inlet pressure can
exceed the outlet pressure rating, outlet
overpressure protection is necessary.
however, overpressuring any portion of
the regulators beyond the limits in the
Specifications section may cause leakage,
damage to regulator parts or personal injury
due to bursting of pressure-containing parts.
Some type of external overpressure
protection should be provided to the
CSB700 Series if inlet pressure will be
high enough to damage downstream
equipment. Common methods of external
overpressure protection include relief valves,
monitoring regulators, shutoff 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 specified in the Specifications section
and regulator nameplate does not preclude
the possibility of damage from external
sources or from debris in the pipeline.
!
waRNINg
The usage of an assembly incorporating
an electrical accessory in an explosive
atmosphere the Type CSB704 regulators
equipped with an electrical accessory (proxy,
microswitch) are:
– are classified “assembly” in conformity
with the aTex Directive 2014/34/eu (ref
CeN/SFg-I guidance sheet-February 2015)
– can be installed in any type of classified
zones according to the Directive
1999/92/eC dated 16 December 1999,
according to the following conditions:
a.) the equipment is connected to a
suitable and certified intrinsically
safe apparatus/electric circuit
(zener barrier)
b.) the equipment is used according to
the appropiate instruction manual
issued by the manufactuer and/or
available on our website
c.) when the equipment is used in a
natural gas pressure reducing and/or
metering station in compliance with
the following european standards:
eN 12186, eN 12279 and eN 1776.
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 external threads of the pipe
before installing the regulator.
• Make sure gas flow through the regulator is in the same
direction as the arrow on the body.
• Verify that:
- Equipment limits of utilization (PS, TS) correspond to
the desired operating conditions.
- The inlet is protected by an appropriate device(s) to
avoid exceeding the allowable limits (PS, TS).
• When designing a pressure reducing station, make an
analysis if it is necessary to take into account the effect
of wind, snow and temperature to avoid unnecessary
load and movement to the flanges of the equipment.
• If needed, a support may be used under the piping and
regulator/slam-shut body to avoid excessive pressure
force on the regulator/slam-shut.
Installation location
• The installed regulator should be adequately
protected from vehicular traffic and damage from other
external sources.
• Install the regulator with the vent pointed vertically down,
see Figures 5 through 6. 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.
CSB700 Series
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