Chapter 1 GENERAL DESCRIPTION
1-6 750-177
remove side outlet valves by using a pipe or wrench in
the outlet.
!
DANGER
WARNING
Only properly certified personnel such as
the relief valve manufacturer’s certified
representative can adjust or repair the
boiler relief valves. Failure to follow these
instructions could result in serious
personal injury or death.
DISCHARGE OPENING
MUST BE EQUAL TO OR LARGER THAN
INLET
CAUTION - VENT
PIPE
MUST NOT
TOUCH DRIP
PAN EXTENSION
SUPPORT FROM BUILDING
CONSTRUCTION
VENT
DRIP PAN
EXTENSION
DRIP PAN
AND ELBOW
DRIP PAN
DRAIN
VENT PIPE
OPEN DRAIN
TO WASTE
BOILER SHELL
SAFETY VALVE
DRIP ELL DRAIN
WATER LEVEL
NOTICE: BACK-PRESSURE OF STEAM EXHAUST SYS-
TEM MUST BE LESS THAN 6% OF SAFETY VALVE SET-
TING.
Figure 1-8: Recommended Piping For Steam
Relief Valve (Not furnished by Cleaver-Brooks)
TO STEAM
1 1/2”
MIN.
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