Page 110 - Webster Service Manual

105
Specifications
Gear Sizes:
18
B (.35” gear width)
37
B (.70” gear width)
47
B (1.00” gear width)
59
B (1.40” gear width)
Capacity:
80
to 290 GPH @ 1750 RPM
#1
to #6 fuel oil @ 75 degrees F.,
100
PSI)
Pressures:
#4
to #6 fuel oils - up to 500 PSI
#2
fuel oil - up to 350 PSI
Operating Speeds:
To 1725 RPM
Porting: *
1
/
2
NPTF: Side inlet and side outlet
3
/
4
NPTF: Side inlet and side
outlet 59B only
Shaft Seal:
Standard - Double lip type, Viton
Filter:
No internal filter
External filter recommended
Relief Valve:
No Relief Valve Use
External Relief Valve
Inlet Pressure:
3
PSI MAX
Inlet Vacuum:
10”
Hg maximum
UL Listed
SPMB Duplex
PUMP/MOTOR UNITS
Available in flow rates from 80 GPH through 290 GPH. Systems
can be designed for single phase 115/208/ 230V, 60 or 50CY, or
three phase 208/230/460V, 60 or 50CY, applications, The SPM
duplex models consist of two pump and motor assemblies with
a pre-piped common discharge manifold. One pump operates
continuously, with the second providing backup service if the
main pump fails. Either automatic (SPM-DA models) or manual
(
SPM-DM models) controls are available. The duplex automatic
series are designed specifically for buildings where a constant
supply of oil must be assured...hospitals, apartment buildings,
schools and other commercial or industrial buildings. The duplex
pump set has a second pump for standby or auxiliary service.
Furnished with automatic or manual standby controls, the duplex
automatic is equipped with a pressure sensing device which
detects loss of pressure of primary pump. If standby pump is
brought into service, and alarm sounds which indicates malfunc-
tion in primary pump. The electric control circuit on the duplex
automatic pump set is equipped with a lead-lag switch to permit
manual alternation of pump to provide even pump wear. The man-
ually operated duplex pump sets offer the same protection as the
automatic except the standby pump must be turned on manually
which requires that maintenance personnel always be available.
Available with either SPM or SPMV pump/motor units.