Burnham BOILER 3 Equipment Guide

Boiler:

Three-pass firetube type, constructed with heavy steel, in accordance with requirements of the
ASME Code. All units are registered with the The National Board of Boiler and Pressure Ves-
sels.

Water cooled sidewalls in the rear turnaround promote rapid internal circulation and reduce
gas temperatures at the entrance to the second pass, reducing tube end stress. All tube ends
are rolled and flared.

Easy-opening insulated front and rear flue doors with light weight non-refractory closure pro-
vide full access to all tubes. No elaborate seals are used. The C Series oversized furnace
easily accommodates any burner.

Washouts are provided for easy inspection and cleaning of waterside surfaces. All steam boil-
ers are provided with a dry pan to ensure dry steam. A feedwater diffuser is provided on steam
boilers. All water boilers are equipped with a dip tube at supply outlet and diffuser at return
inlet.

The round vertical smoke outlet has room for an optional quadrant damper. All boilers are pro-
vided with lifting holes and an enameled steel jacket installed over fiberglass insulation. The
boiler is mounted on a heavy-duty structural steel base with extended skid and burner platform
for protection of the burner during shipment and rigging.

Standard Trim and Controls:

Steam: 157 pump control/low water cut-off with alarm contacts—piped with quick opening
blowoff valve. Gauge glass set with hand-operated gauge and try cocks. Steam pressure
gauge - 4-1/2" dial. L404F operating pressuretrol, L4079B manual reset high limit pressuretrol
and appropriate firing rate control when required. Manual reset probe auxiliary low water cut-
off. ASME side outlet safety valve(s).

Water: 750-MT manual reset low water cut-off—piped with quick opening blowoff valve. Com-
bination pressure/temperature gauge - 3-1/2" dial. L4006A operating aquastat and L4006E
manual reset high limit aquastat and appropriate firing rate control when required.

ASME side outlet relief valve(s).