The Norfolk Virginian. [volume] (Norfolk, Va.) 186?-189?, 1897-02-26
THE ClTy'S",NEW PUMP
Installed Two >Weeks. Ago far Sewer Pur.
poses Is 4. fine; Machine. .'..... \.
SYSTEM NOW EQUAL TO ANY OTHER CITY
The Double Syaten of Sewer Pump.
City. u Plant fnrcrior to No 9th.
) er I'm An,cricn "A Description
Of tho New Pump.

! The Chief Engineer OF the city pump
ing station Is proud of his new pump
tor sewerage purposes. The new ceptri-
1ugal pump in addition to the other ma
t en- mo now IN use here. practically gives
the city twelve-foot elevation Old
tolnt is the only other place having a
similar pump. The, city now has Il dou-
PIE pumping system, and is in 4 posi- ton
70 take care Of a II its sewerage for years
TO come. In case Of accident to one ma
e, the other Is always ready to take
Us place. The system, after many trials,
IS now the equal Of any American city
Norfolk started in with two Davidson
pumps, which later on were substituted
py big Gaskell pump. which, In turn,
mas now given way TO two fine centrifu-
for the city by the Morris Machine
Works. at BaldwinsvIlle, N. Y. u.
\ fine description of the latest Of these
Two pumps, which has now been run
nlns Tor two weeks, was recently pub
lshed in the Engineering News. The
20 inch suction and Is inch discharge,
the latter connected to s. 20 inch piping.
The actual head, worked against is &c
feet, but when the pump Is driven to its
maximum capacity, discharging about
Sooo gallons of water per minute and
forcing 1t through the discharge pipe,
which Is 1000 feet long, the total head
pumped against is equivalent 10 As feet
lnasmuch as this pumping Quilt will
often be required to run night and day
II was thought advisable in designing
me machine. to make the pump runner
or large diameter SO a S to keep the en-
CINE speed moderately low. The engine,
which has Ii and 28-inch cylinders by
.lS-inch stroke, will, therefore, under
average work only ran ut speed of from
10 to l40 revolutions per minute, and
us maximum speed Is l8o revolutions per
RI ~ t,1S
from the city flows into' well from
which thet pump Ssates Sits supply, dis
charging It, IN the river and keeping
up continual circulation: The runner
Is made completely, Of btonze, so as I'd
Withstand The oorioding. action of sow
age and the gases Contained tlcrein.
The pump shaft IS made"of steel cover.
cd with bronze where 1t passes through
me stulilng box into the pump. In order
t;tQ Keep the sewage from working 'ha elk
into the stulIfng box a fresh water injec-
ton is arranged, which is continually
forcing a stream OF water through tho
bearing into the pump, thereby prevent
ing sewage water from working in.
The vanes on the runner are made
rather wide apart so as to pass through
pieces Of wood. rags. or other solid mat
iter that may be pumped with the sew
age. The high pressure cylinder on the
engine Is fitted with q Meyer adjust able
cutoff, so that the steam consumption
can be regulated according to the
amount Of work the pump Is doing.
The engine is throughout very sub
stantially built; the crank shaft is made
Of steel, counter balanced; connecting
rods are Of the forked type, also mae
Of steel; as also are the cross head, pis-
ton-rods and valve motion. About a
year and half ago n machine similar
in general design, to this one was fur
nished for, the city OF Norfolk, which
has, since 1t was put In, been running
almost day and night. giving the best Of
satisfaction. It can bG depended upon.
in case the quantity Of sewage Is small,
to work successfully bandling a small
amount of It, Or can he speeded up Until
without difficulty it takes care or all the
sewage which flows into the receiving
well. .,,,s, ..... t. .3gf,