Pulsafeeder Pulsalube 8 GS Ultra, Operation & Maintenance Manual

Page: 27 / 198

Schutte & Koerting • 2510 Metropolitan Drive • Trevose, PA 19053 • USA • tel: (215) 639-0900 • fax: (215) 639-1597 • www.s-k.com • sales@s-k.com
7
Water Jet Eductors Bulletin 2M
Fig. 258 and Fig. 268 Tank
Mixing Eductors
Fig. 258 and Fig. 268 Tank Mixing
Eductors are used to agitate liquid,
dissolve powdered solids in liquid, and to
mix two or more liquids intimately within a
tank or other vessel without the use of
baffles or moving parts inside the tank.
These units take the place of mechanical
agitators.
The 268 is used in preference to the 258
in operations where it is desirable to start
mixing from a shallow level or where
uniform local agitation is required over
large, shallow tank area. Typical
applications of each are shown in the
application section beginning on page
12.
Fig. 258 and 268 Eductors are operated
by a flow of pressure liquid through the
nozzle. As shown in the sectional
drawings, the motive liquid entrains
suction liquid, the two are mixed
intimately in the venturi, and the mixture
is discharged into the tank. Pressure
liquid can be taken from the tank by
means of a pump or it can be a new
liquid. Standard, stock units are
designed to entrain 3 gallons of suction
fluid for each gallon of motive fluid.
(Special designs of the 258 Eductor can
be made to give 1 to 1 ratio.)
Normally, the tank is filled by means of
the eductors. Mixing occurs as soon as
the level of liquid in the tank covers the
suction of the eductor. In addition to the
mixing obtained between suction and
motive fluids in the eductor, the jet action
of the discharge from the eductor serves
to agitate the tank and prevents
stratification.
If a drawing or sketch of the mixing tank
is furnished, S&K
will recommend and
quote on the proper type of distribution
system.
Performance information is given in
accompanying Performance Data,
Bulletin 2M Supplement. Similar units
using steam as motive fluid for heating,
circulating and mixing are described in
Bulletin 3A as “Fig. 314” units.
Table 5. Sizes and Dimensions,
Fig. 258 Tank Mixing Eductor
A
*Flanged Connection
† Varies with performance and application
Note: A discharge flange is not supplied on large fabricated units
unless required by the application.
(See Fig. 16 for dimensions of Fig. 268 Eductor).
Size
in
Inches
Connections in Inches
Wgt.
in
Lbs.
Dimensions
in Inches
Disch. Pressure A
1/2 1 1/2 2 5 1/2
3/4 1 1/2 3/4 6 8 1/2
1 2 1 22 1/2 12 5/16
1 1/4 2 1/2 1 1/4 29 11 1/8
1 1/2 3 1 1/2 36 1/2 15 7/8
2 4* 2 78 19 5/8
3 6* 3
ON
APPL.
28 13/16
4 † 4* †
5 † 5* †
6 † 6* †
Table 5-A. Sizes and Dimensions,
Fig. 268 Tank Mixing Eductor
Size
in
Inches
A B C D
Wgt. in
Lbs.
3/8 3 3/4 1 3/4 3/8 7/16 3/4
3/4 5 1/4 2 3/8 3/4 9/16 2 1/2
1 1/2 8 13/16 4 1/16 1 1/2 13/16 6 1/4
2 12 1/4 5 13/16 2 45/64 22
3 17 8 1/8 3 15/16 48
B
A
D
C
B
A
D
C
Sizes 3/8, 3/4 Sizes 1 1/2, 2, 3