Finish Thompson SP11/15 SERIES SELF-PRIMING - Manual (Page 4)

WARNING:
Chemical Hazard. This pump is used for transferring many types of potentially dangerous chemicals.
Always wear protective clothing, eye protection and follow standard safety procedures when handling corrosive or per-
sonally harmful materials. Proper procedures should be followed for draining and decontaminating the pump before disas-
sembly and inspection of the pump. There may be small quantities of chemicals present during inspection.
WARNING
: Never run pump at less than minimum flow or with the discharge valve closed. This could lead to pump
failure.
WARNING:
The pump and associated components are heavy. Failure to properly support the pump during lifting and
movement could result in serious injury or damage to the pump and components.
CAUTION: This pump should never be started without the 1 US gallon (3.8 liters) of priming fluid in the housing. If
the pump has a PTFE, ceramic or silicon carbide bushing, IT CANNOT BE RUN DRY WITHOUT CAUSING DAM-
AGE TO THE PUMP. However, the pump can operate without liquid in the housing if the pump has a carbon bushing.
The exact length of time the pump can run dry with a carbon bushing varies with operating conditions and environment.
CAUTION: Never start or operate with a closed suction valve.
WARNING: Operation without priming or against a closed discharge valve can result in high temperatures that can
result in injury or damage to pump components.
CAUTION: Always provide adequate NPSHa (net positive suction head available). It is recommended to provide at
least 2 feet (61 cm) above the NPSHr (net positive suction head required).
CAUTION: If pump is used on variable speed drive, do not exceed the frequency for which the pump was designed
(for example, if the pump is a 50 Hz model, do not exceed 50 Hz).
SP11/15 Capabilities
Maximum Working Pressure: 90 psi (6.2 bar)
Maximum Temperature: Polypropylene: 180º F (82º C); PVDF: 220º F (104º C)
NOTE: Maximum temperature is application dependent. Consult a chemical resistance guide or the chemical
manufacturer for chemical compatibility and temperature limits.
Maximum Lift: 25 feet (7.6 meters)
NOTE: Lift determined on fresh, cold water with 1 1/2” Schedule 40 pipe. Specific gravity affects lift capability.
Divide 25 feet (7.6 meters) by the specific gravity to determine equivalent maximum lift.
Solids: Maximum particle size is 100 microns for slurries and 1/64” (.4 mm) for occasional solids. Maximum hardness
is 80 HS. Maximum concentration is 10% by weight. If solids are being pumped, it is recommended that the pump have
either ceramic or for best results, silicon carbide components. Pumping solids may lead to increased wear.
NOTE: While the pump is capable of being used in sump applications, it is NOT a trash pump. Care must be taken
to ensure that debris and foreign objects do not enter the pump or damage may result. A 1-1/2” strainer basket with
1/8” (32mm) perforations is suggested. Regular strainer basket maintenance is required to prevent plugging and
decrease in NPSHa so as not to starve and damage the pump.
Minimum Allowable Flow Rate
Do not allow the flow rate to drop below the minimum flow rate listed in the chart below.
Model
3450 rpm 1725 rpm 2900 rpm 1450 rpm
SP11 4 gpm (.9 m 3 /hr) 2 gpm (.5 m 3 /hr) .76 m 3 /hr (3.4 gpm) .38 m 3 /hr (1.7 gpm)
SP15 5 gpm (1.1 m 3 /hr) 2.5 gpm (.6 m 3 /hr) .95 m 3 /hr (4.2 gpm) .48 m 3 /hr (2 gpm)
Maximum Noise Level: 78 dBA (pump only)
Maximum Allowable Motor Power
Do not exceed the maximum power rating for the pump coupling.
Standard coupling for the SP11 is 6-pole; standard coupling for the SP15 is 8-pole.
•
6-pole coupling = 2 horsepower (1.5 kW)
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