Fulton Ancillary Equipment SteamPac Unfired Steam Generators - Manual (Page 22)

Fulton Thermal Corp.*SteamPac Unfired Steam Generators Manual* Version 2010-0201
Page 22
glass outlet is pointing at five o’clock (about 1/8 turn from its final downward vertical
position).
e) Install the bottom gauge fitting (the fitting with a drain valve) until it is snug and the glass
outlet is pointing directly upward. Verify top and bottom fittings are threaded into the
tappings the same number of turns (distance A = distance B).
f) Remove glass packing nut, friction washer and glass packing from the
fittings, and place them, in the same order, on to both ends of the gauge glass. Push both
packings about an inch up the gauge glass.
g) Gently insert one end of the glass into the top gauge fitting. Keeping the glass inside
the top fitting, gently rotate to the top gauge fitting clockwise until vertically aligned with
the bottom gauge fitting, then inset glass into bottom fitting until glass bottoms out on
the shoulder inside the bottom fitting.
h) Carefully raise glass about 1/16” and slide lower glass packing down until the glass
packing contacts the lower gauge fitting. DO NOT allow the glass to remain in contact
with any metal!
i) Carefully slide upper glass packing up as far as possible.
j) Hand tighten both glass packing nuts, then tighten 1/2 turn more by wrench. Tighten only
enough to prevent leakage. DO NOT OVER TIGHTEN! If any leakage should occur,
tighten slightly, a quarter turn at a time, checking for leakage after each turn.
k) Install the protective guard, and utilize automatic ball checks where necessary to help
prevent injury in case of glass breakage.
16. General
a) All components exposed to thermal fluid flow, including pipe, valves, and screens, must
not be made out of copper, copper alloys, aluminum, or cast iron. Cast iron is porous to
thermal fluids, and copper and aluminum act as catalysts in the degradation of some
thermal fluids. Carbon or stainless steel, or ductile iron, are recommended.
b) For standard applications, all components must be rated to 650°F unless otherwise
stipulated.
c) All pipework, valves, and user equipment must be suited to the maximum operating
pressure of the heater. Consult the nameplate on the heater for this rating.
d) If an isolating valve is completely closed, the pressure in the system will rise to the
deadhead pressure of the pump. Suitably sized pipe will enable the system to withstand
the total head generated by the circulating pump, should this occur. In applications where
it is desirable to design to pressures lower than the safety relief valve setpoint, an
alternative safeguard is to install additional appropriately sized safety valves.
e) Where secondary circulating pumps are installed, the system must be suitable for the
aggregate head, against a closed valve, of both pumps.