Page 7 of 18
Vapor Power International LLC
551 S County Line Road, Franklin Park, Il 60115
Phone: 630-694-5500 Fax: 630-694-2230
Safety valve discharge should be piped (using full size pipe with no
restrictions) so that steam is directed away from electrical components and to
a place where no injuries to personnel can result in the event of a valve
discharge. If the valve discharge is piped vertically upward, a seat drain must
be provided to eliminate condensate back pressure on the valve seat.
2.5
LOW WATER CUTOFF/PUMP CONTROL
On the ball/float type low water cutoff/ pump control, check that the float
blocking plug has been removed and replaced with a solid plug.
2.6
PRESSURE LIMIT CUTOUTS
Check that the high pressure cutoffs are plumb as indicated by the internal
leveling pendulum which must swing freely and point to the index mark on
the case.
2.7
HYDRO TEST
Good practice, as well as, most local codes, dictates that a hydro-static test, at
a pressure equal to the safety valve setting, of the entire boiler system be
performed prior to boiler start up. All leaks, both boiler and piping, should be
“stopped” at this time.
NOTE: SMALL LEAKS (LESS THAN 2 DROPS PER MINUTE) BETWEEN THE BODIES
OF THE ELEMNT COMPRESSION FITTING AND THE ELEMENT FLANGES
USUALLY STOP DURING THE FIRST FEW DAYS OF BOILER OPERATION.
LARGER LEAKS, HOWEVER MAY NECESSITATE TIGHTENING OF THE
COMPRESSION FITTING BODY. THIS IS ACCOMPLISHED BY FIRST
REMOVING THE ASSOCIATED WIRES/JUMPERS, AND THEN TIGHTENING
THE COMPRESSION BODY
.
CAUTION:
DO NOT TORQUE COMPRESSION BODY OVER 70 FT LBS (brass) or 110 FT LBS (SS)
NOTE: ALL PIPING, VALVES, AND FITTINGS MUST MEET THE REQUIREMENTS OF
LOCAL REGULATING CODES. THE RESPONSIBILITY FOR THE INSTALLA-
TION OF THIS BOILER RESTS WITH EITHER THE OWNER OR THE
INSTALLING CONTRACTOR
.
