Norgren U.L. Listed Beverage Regulators - Manual (Page 11)

R81, C81 Beverage Regulators
Littleton, CO USA Phone 303-794-2611 Fax 303-795-9487 ALE-12-11
WARNING
Soft drink dispensing systems must be designed, installed, and
operated in accordance with the guidelines set forth in NSDA
pamphlet TD02, Installation and Operational Procedures for
Pressurized Soft Drink Dispensing Systems, dated July,
1980 or subsequent revisions.
1.Pressure relief valves of sufficient capacity must always be
used in the secondary (outlet) lines downstream of each
pressure regulator, whether as an integral part of the
regulator, as is the case with Norgren Model R81 Regulator,
or separately installed elsewhere in the outlet lines. Do not
remove or attempt to adjust, plug, block or otherwise defeat
the purpose of the relief valve. Do not replace a relief valve
with any but an identical model. The relief valve used on the
R81 regulator is preset and marked 130 PSIG RELIEF
VALVE. Replace only with the same 130 psig relief valve,
part number 5779-55. The end cap on the 5779-55 relief
valve is color coded black for visual identification. Failure to
provide a pressure relief valve of sufficient capacity to hold
outlet pressure below the lowest working pressure rating of
any piece of equipment installed in the outlet lines can result
in equipment damage and/or personal injury.
2. A back flow check valve must always be installed at the
regulator or at each manifold outlet in liquid dispensing
applications to prevent reverse flow through the regulator
and possible introduction of liquids and other contaminants
into the regulator.
3. Regulators must not be used where temperature or pressure
may exceed those specified in the Technical Data
paragraph.
4. The accuracy of the indication of pressure gauges can
change, both during shipment (despite care in packaging)
and during the service life. If a pressure gauge is to be used
in conjunction with these products and if inaccurate
indications may be hazardous to personnel or property, the
gauge should be calibrated before initial installation and at
regular intervals during use. For gauge standards refer to
ANSI B40.1.
5. These regulators are not intended for use in life support
systems, beer dispensing systems, soft drink carbonator
systems, or industrial cylinder gas systems.