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Description
This submersible wastewater pump is designed for commercial and industrial applications, including flood control and wastewater treatment. It can be installed both submersibly and dry, with options for S-tube or SuperVortex impellers. The pump allows a free passage of 35-125 mm, depending on the size and hydraulic variant.
Specifications
| Manufacturer | Grundfos |
|---|---|
| Part Number | 99781274 |
| Maximum flow | 3410 US gpm |
| Maximum head | 42.65 ft |
| Type of impeller | DUAL S-TUBE |
| Free passage | 4.33 in |
| Approvals | FM |
| Curve tolerance | ANSI/HI11.6:2017 3B |
| Cooling jacket (Yes/No) | Y |
| Lifting height class | L |
| Pump housing | Cast iron, EN 1561 EN-GJL-250, ASTM A48 35B |
| Impeller | Cast iron, EN 1561 EN-GJL-250, ASTM A48-35B |
| Motor | Cast iron, EN 1561 EN-GJL-250, ASTM A48 35B |
| Shaft seal | SIC |
| Secondary shaft seal | SIC-CARBON |
| Range of ambient temperature | -4 .. 104 °F |
| Flange standard | ANSI |
| Size of suction port | 10 inch |
| Size of outlet port | 10 inch |
| Pressure stage | PN 10 |
| Maximum installation depth | 65.6 ft |
| Inst dry/wet | DRY |
| Inst horizontal | 98113368 |
| Frame range | 52 |
| Liquid temperature range | 32 .. 104 °F |
| Selected liquid temperature | 68 °F |
| Density | 62.29 lb/ft³ |
| Power input P1 | 27.1 HP |
| Rated power - P2 | 24.1 HP |
| Main frequency | 60 Hz |
| Rated voltage | 3 x 208 V |
| Voltage tolerance | +10/-10 % |
| Max starts per. hour | 20 |
| Rated current | 70 A |
| Maximum current consumption | 70 A |
| Starting current | 721 A |
| Rated current at no load | 39 A |
| Rated speed | 1783 rpm |
| Motor efficiency at full load | 89 % |
| Motor efficiency at 3/4 load | 88 % |
| Motor efficiency at 1/2 load | 87 % |
| Number of poles | 4 |
| Start. method | D |
| Enclosure class (IEC 34-5) | IP68 |
| Insulation class (IEC 85) | H |
| Explosion proof | yes |
| Built-in motor protection | KLIXON |
| Cable type | S1BN8-F |
| Length of power cable | 49.2 ft |
| Cable resistance | 1.91 mOhm/m |
| Cable size | 7G10+5X1.5ST |
| Winding resistance | 0.097 Ohm |
| Cos phi 1/1 | 0.81 |
| Cos phi 1/2 | 0.66 |
| Cos phi 3/4 | 0.74 |
| Moisture sensor | with moisture sensors |
| Net weight | 1120 lb |
| Shipping volume | 58.1 ft³ |
| Sales region | NAMREG |