Page 36 - Webster Service Manual

31
R SERIES SERVICE SAVER FUEL UNITS
Available in both single-and two-stage models,
Webster's service saver fuel units are rated to capaci-
ties of 80 gph. Featuring
the unique Webster rotary
filter, simple flange mount-
ing, and an extended
shaft length, the R Series
is adaptable to virtually
every replacement need.
FUEL UNIT
SPECIFICATIONS
R Series Fuel Units
Capacities to 80 gph
Single- and T wo-Stage
Models
Capacities:
R Series models are rated to 80 gph at 100 psi with #2
fuel oil.
Pressure:
Built in pressure regulator.
Factory set at 100 psi (supply pumps set at 20 psi).
Speed:
1425,1725,2850
or 3450rpm.
Rotation:
Clockwise (D Style) or counterclockwise (C Style) when
viewed from shaft end.
Porting:
1 /8”
NPTF: side location nozzle port if pump code ends
in 3 or 4.
1 /4”
NPTF: side location nozzle port if pump code ends
in 13 or 14.
1 /4”
NPTF: 2 inlets, gauge port and top and bottom
returns.
Shaft:
7/16
x up to 3.69” extension from mounting face, key
drive.
Stepped shafts turned to 5/16” at coupling end.
Seal:
Mounting:
Double lip type.
Two bolt flange.
Filter:
Self cleaning rotary type - internal.
NOTE:
External filter recommended with each installation.
Maximum Inlet Vacuum:
Single-stage units - 10” Hg
Two-stage units - 15” Hg
U.L. Listed to 72 gph:
To assure compliance with National Fire Protection
Association's Bulletin 31, “Installation of Oil Burning
Equipment,” fuel unit inlet pressure should not exceed
3
psig.