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R122H, R222H, R222, R232A and R232E Series
LP-Gas Regulators
©Emerson Process Management Regulator Technologies, Inc., 2005, 2015; All Rights Reserved
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a business of Emerson Process Management.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or
guarantees, express or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specications of such
products at any time without notice.
Emerson Process Management Regulator Technologies, Inc. does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and
maintenance of any Emerson Process Management Regulator Technologies, Inc. product remains solely with the purchaser.
For further information visit www.fisherregulators.com
LPG Equipment
Emerson Process Management
Regulator Technologies, Inc.
USA - Headquarters
McKinney, Texas 75070 USA
Tel: +1 800 558 5853
Outside U.S. +1 972 548 3574
corrosion on the Type R222H/R222 and the second
stage portions of the Types R232A and R232E can be
done by removing the closing cap and with the aid of
a ashlight observing the condition of the relief valve
spring, main spring and internal spring barrel area. A
more detailed examination will require shutting down the
gas system and the complete removal of the adjusting
screw. The Type R122H regulator must be completely
disassembled by a qualied person to look for internal
corrosion. Closely examine regulators installed with
their vent horizontal for signs of corrosion. Correct any
improper installations.
Regulator Replacement
Older regulators are more likely to catastrophically fail
because of worn or corroded parts. Replace R122H,
R222H, R222, R232A and R232E Series regulators
over 20 years of age. Other service or environmental
conditions may dictate replacement of the regulator
before it becomes 20 years old. Regulators that are
installed in corrosive environments including but not
limited to the following conditions should be inspected
annually for visual indication of external or internal
corrosion and paint chipping or aking. Regulators in
these applications may require replacement sooner and
must be replaced if corrosion is evident:
• Regulators that are installed in areas subject to sea
salt (coastal) atmosphere
• Regulators that are installed on underground systems
• Regulators installed with underground vent piping
• Regulators that are used in installations where the gas
system is only operated and pressurized intermittently
Refer to Fisher
®
Bulletin LP-32 for additional information.
Regulator Repair
Regulators that have been disassembled for repair
must be tested for proper operation before being
returned to service. Only parts manufactured by Fisher
should be used to repair Fisher regulators. Be sure to
give the complete type number of the regulator when
corresponding with the factory.
The type number, orice size and spring range are
on a label attached to the spring barrel. The date of
manufacture is stamped on the regulator. Always provide
this information in any correspondence with your Fisher
Distributor regarding replacement parts or technical
assistance. If construction changes are made in the eld,
be sure that the regulator marking is also changed to
reect the most recent construction.