Basics of Firetube Operation
1-8
750-91 (revised 2009)
Model CB-LE Packaged Boiler Manual
prevent buildup of back pressure and accumulation of foreign material around the valve seat area. Apply only a
moderate amount of pipe compound to male threads and avoid overtightening, which can distort the seats. Use
only flat-jawed wrenches on the flats provided. When installing a flange-connected valve, use a new gasket and
draw the mounting bolts down evenly. Do not install or remove side outlet valves by using a pipe or wrench in the
outlet.
FIGURE 1-5. Safety Valve
Only properly qualified personnel such as the safety valve manufacturer’s certified representative can adjust or repair
the boiler safety valves. Failure to follow these instructions could result in serious injury or death.
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