Table des Matières
Publicité
Les langues disponibles
Les langues disponibles
The convertible jet pump is ideal for the supply of fresh water to ru-
ral homes, farms and cabins that have suction lifts down to 90 feet.
This pump may be installed as a shallow well unit with the injector
mounted to the casing. For a deep well unit the injector is mounted
in the well and either combination of venturi or nozzle may be used.
For vertical lifts of *25 ft. (7.5m) or less, install as a shallow well unit
Fig. 1a
Shallow Well Installation
25 ft. (7.5M) max.
HP
INJECTOR*
SW
1/3
DW(M)
DW
SW
1/2
DW(M)
DW
SW
3/4
DW(M)
DW
SW
1
DW(M)
DW
*SW: shallow well • DW(M): deep well (medium) • DW: deep well
a)
Pump Location: The pump should be installed in a clean, dry and
ventilated location which provides adequate room for servicing
and protection from freezing temperatures. It should be bolted
to a good foundation, preferably concrete and provided with
adequate drainage. Locating the pump as close as possible to
the water source reduces the friction in the suction pipe and will
give maximum capacities.
b)
Suction & Pressure Pipe: It is recommended that only new
clean 1-1/4" pipe or hose be used. If the pump is installed any
appreciable distance away from the source of water, the suction
pipe should be increased to 1-1/2". Horizontal lengths of pipe
must gradually slope upward from the source of water to the
pump to avoid air pockets in the line. Thread compound should
be used on all pipe joints and connections should be thoroughly
tightened. A foot valve must be installed and its operation
should be checked since a leak will prevent proper operation
of the system. Make sure the foot valve is located so that it will
be submerged at all times. If the well cannot supply as much
water as the pump can draw, install a tailpipe up to 30 feet long
between the injector and the foot valve. As the well draws down
Injector
Vent
Foot
Valve
5
10
15
20
25
CAPACITY (US GALLONS PER MINUTE) @
30 PSI DISCHARGE PRESSURE
9.2
7.8
6.6
5.1
3.9
--
--
--
--
--
--
--
--
--
--
10.9
9.5
7.9
6.5
4.7
--
--
--
--
--
--
--
--
--
--
17.7
15.1
12.4
9.7
7.4
--
--
--
--
--
--
--
--
--
--
19.9
16.8
14.1
11.8
8.8
--
--
--
--
--
--
--
--
--
--
SINGLE PIPE
SHALLOW WELL
APPLICATION
(Fig. 1a) and for vertical lifts beyond 25 ft. (7.5m), install as a medium
depth deep well or as a deep well unit (Fig. 1b). In offset installations,
friction losses in the suction pipe must be taken into consideration
(refer to Table 3, Friction Loss Chart). This pump is not tested for use
in swimming pool areas.
*Less at high altitudes.
specific applications, see instructions sup-
PERFORMANCE
DEPTH (IN FEET)
20
30
40
50
60
--
--
--
--
--
6.7
5.4
4.3
--
--
6.9
5.6
4.4
3.6
2.9
--
--
--
--
--
11.3
9.4
7.6
--
--
9.2
8.1
6.8
5.8
5.0
--
--
--
--
--
14.7
12.3
9.7
--
--
9.8
8.9
7.1
6.1
5.3
--
--
--
--
--
16.2
13.5
11.0
--
--
10.5
9.3
8.0
7.2
6.2
DOUBLE PIPE
DEEP WELL
TABLE 1
INSTALLATION
under heavy demand, the pump's capacity will be reduced, and
the level will not go below the foot valve, which would cause the
pump to lose its prime. If a sandpoint or driven well is used, install
a check valve next to the pump suction instead of the foot valve
(Fig. 3b). All installations must have a foot valve or a check
valve in the suction pipe.
c)
Pump to Tank Fittings: The discharge pipe from the pump to the
tank should be as short and direct as possible and should be the
same size as that of the pump discharge tapping. A check valve
should never be installed between the pump and the tank.
d)
Service Line: The service line should be connected as shown
in Fig. 3a, b, c, or d. The size of the service line required is gov-
erned entirely by the amount of water needed and the length of
the pipe. The pipe selected should be large enough so that the
friction loss (determined from Table 3, Friction Loss Chart) will
never exceed 20 ft. (6m) head.
WARNING - ELECTRICAL PRECAUTIONS
All wiring, electrical connections, and system grounding must
comply with the National Electrical Code (NEC) and with any
local codes and ordinances. Employ a licensed electrician.
2
Fig. 1b
Deep Well Installation
25 ft. (7.5M) and deeper. For
plied with injector kit.
Injector
Foot Valve
70
80
90
MIN PSI
INJECTOR SETTING
--
--
--
n/a
--
--
--
20
2.4
--
--
20
--
--
--
n/a
--
--
--
25
4.3
3.4
2.6
25
--
--
--
n/a
--
--
--
25
4.4
3.5
2.9
25
--
--
--
n/a
--
--
--
25
5.3
4.5
3.4
25
Vent
Mounted on pump
45 ft
75 ft
Mounted on pump
45 ft
95 ft
Mounted on pump
45 ft
95 ft
Mounted on pump
45 ft
95 ft
Publicité
Table des Matières
