installation &
operating instructions
Design Envelope 4322 & 4372
Tango Pumping Unit
6
b pipe mounted supported at ceiling
Piping in many mechanical rooms is hung close to the ceiling
and larger pumps are mounted near ground level for ease of
maintenance. fig. 1.2.2 illustrates such an arrangement with
the piping supported at the ceiling and the vil unit installed
with an Armstrong Suction Guide and Flo-Trex valve. Many very
large vil pumps are installed in this manner.
fig. 1.2.2
System inlet
System outlet
Recommended
field pressure
gauge piping
arrangement
Flo-trex valve
Split
coupler
Flush line
Drain connection
Suction
guide
Hangers support the weight of the filled
piping, pumps and fittings
Pipe hanger
(typ.) see
specification
for size and
type
Pet cock
(typ.)
2' or 3'
height above
finished floor
c discharge elbow for minimum footprint
Should additional space saving be required the discharge spool
piece may be replaced by a long-radius elbow.
fig. 1.2.3
Drain
Connection
Suction
Guide
System inlet
Recommended field
pressure gauge
piping arrangement
Flo-trex valve
Hangers support the weight of the
filled piping, pumps and fittings
Pipe hanger
(typ.) see
specification for
size and type
System outlet
Split coupler
Flush line
d with additional pipe supports
fig 1.2.4 illustrates a similar arrangement to fig 1.2.2 with
additional floor mounted pipe-stools (isolated from the
structure by ‘wae’ style neoprene isolation pads) under the
Armstrong Suction Guide and Flo-Trex valve.
fig. 1.2.4
Drain connection
Suction
Guide
Neoprene
isolation
pad
System inlet
Recommended
field pressure
gauge piping
arrangement
Pipe support
Flo-trex valve
Pet cock
(typ.)
Pipe hanger
(typ.) see
specification
for size and
type
System outlet
Split
coupler
Flush line
2' or 3'
height
above
finished
floor
Hangers support the weight of the
filled piping, pumps and fittings
e floor saddle support
Floor mounted saddle supports (fig. 1.2.5) are typical for
condenser water pumps where cooling tower base is at the
mechanical room elevation.
fig. 1.2.5
Flo-Trex Valve
For application with no suction guide, straight pipe of a length equivalent up to 4
times its diamater for 1.5-6" pumps and 6 times diamater for 8" to 12" pumps
will be required.
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