Finish-thompson SP22 Series Self-Priming Uživatelský manuál stáhnout pdf (Strana 4)

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).

SP22 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 3” 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 silicon

carbide components for best results. 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. FTI recommends using a 2” (50.8 mm) or 3” (76.2 mm)

strainer basket with 1/8” (3.2 mm) perforations. Regular strainer basket maintenance is required to prevent plugging and a

decrease in NPSHa so not to starve and damage the pump.

• Minimum Allowable Flow Rate

Do not allow the ﬂow rate to drop below the minimum ﬂow rate in the chart below:

• Maximum Allowable Motor Power

Do not exceed 7.5 kW (10 horsepower) for 50 Hz, 2900 rpm applications. For 60 Hz, 3450 rpm applications, the pump is capable

of starting a 15 horsepower motor but is limited to a maximum of 13 horsepower (9.7 kW) while running. Use the information in

the chart below to determine the maximum speciﬁc gravity capabilities by impeller trim for non-overloading applications. The

use of a power monitor is strongly recommended for 60 Hz applications above 10 horsepower (7.5 kW).

• Maximum Noise Level: 80 dBA (pump only)

• Maximum Speciﬁc Gravity for Non-Overloading Applications

3450 rpm (60 Hz)

Impeller

Diameter

Maximum Speciﬁc

Gravity

7” (177.8 mm) 1.0

6.5” (165.1 mm) 1.3

6” (152.4 mm) 1.6

5.5” (139.7 mm) 1.8

5” (127.0 mm) 1.8

2900 rpm (50 Hz)

Impeller

Diameter

Maximum Speciﬁc

Gravity

177.8 mm (7”) 1.35

165.1 mm (6.5”) 1.65

152.4 mm (6”) 1.8

139.7 mm (5.5”) 1.8

127.0 mm (5”) 1.8

3450/2900 rpm 1750/1450 rpm

10 US gpm (2.3 m

/hr) 5 US gpm (1.1

/hr)

1 2 3 4 5 6 7 8 9 ... 18 19

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Finish-thompson SP22 Series Self-Priming Uživatelský manuál Strana 4

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