Type 63EG Relief Valve or
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion
and/or fire causing property damage and
personal injury or death.
Fisher™ relief valves must be installed,
operated and maintained in accordance
with federal, state and local codes, rules
and regulations and Emerson Process
Management Regulator Technologies,
Inc. (Emerson™) instructions.
If a leak develops or if the outlet
continually vents gas, service to the
unit may be required. Failure to correct
trouble could result in a hazardous
condition. Only a qualified person must
install or service the unit.
Call a gas service person to service the
unit. Only a qualified person must install
or service the regulator.
Scope of the Manual
This instruction manual provides instructions
for the installation, maintenance and parts
ordering information for a Type 63EG relief
valve or backpressure regulator with either a
Type 6358, 6358B, 6358EB or 6358EBH pilot and
a Type 1098-63EGR relief valve with a Type 6358B
pilot. Instructions and parts ordering information for the
optional Type 252 or P590 Series pilot supply filters
and any other equipment used with these valves are
found in separate manuals.
Types 63EG and 1098-63EGR
Figure 1. Type 63EG Relief Valve or Backpressure Regulator
Figure 2. Type 1098-63EGR Relief Valve