Slant/Fin GXHA-200 - Manual (Page 7)

GALAXY STEAM BOILER 7
5. Process water applications involving steam boilers requires
the use of heat exchangers. Any process application that
constantly uses fresh water into a steam boiler can and will
cause scaling with deposits forming in the boiler and sur-
rounding piping. This will damage the boiler.
6. If valves are used on the supply side of the boiler, the valve
port opening must be the same size as the surrounding
pipe. (Full flow type valves.)
7. Piping should provide a means of cleaning and flushing the
heating system of the sediment for safe, efficient operation.
RECOMMENDED PIPING FOR A ONE PIPE PARALLEL
FLOW LOW PRESSURE STEAM HEATING SYSTEM WITH A
WET OR DRY GRAVITY (See Note No. 3) CONDENSATE
RETURN AND A HARTFORD† LOOP.
See Note No. 1 on page 6.
FIGURE 1
† A Hartford Loop is recommended for low pressure steam systems with
gravity condensate returns.
Pipe sizes shown above for Hartford Loop are recommended by
Slant/Fin. However, certain local codes may require larger pipe sizes.
Consult with local authorities.
Δ The equalizer should be full size from the steam supply to the operating
water level.
* Hot water fill is preferable. For auto feedings, see manufacturer's tech-
nical instructions.
FIGURE 2
* Hot water fill is preferable, but not required. For auto feeding, see manu-
facturer’s technical instructions.
Counter flow piping is sized one pipe size larger than a parallel flow piping.
This allows steam to travel in one direction while the condensate travels in
the other direction. This along with a steeper pitch is a must for safe, effi-
cient operation.
FIGURE 3