DAYLIFF DS77-11 37kW PUMP END

DAYLIFF DS submersible pumps are designed specifically for borehole supply applications. They are of multistage centrifugal impeller design and all parts are made from stainless steel with water lubricated rubber bearings. FEATURES & BENEFITS A submersible motor is fitted beneath the pump and suction is effected through a strainer between the pump and motor. MOTOR The pump is coupled to a sealed liquid cooled 2-pole asynchronous squirrel cage motor constructed from stainless steel. The motor requires a remote starter and if unstable supply voltage is likely, an additional quick tripping control relay is recommended. Note that due to low starting torques of submersible motors, it is recommended that DOL starters are used. A DAYLIFF SCT electronic pump controller is recommended for comprehensive pump control including low level motor overload and irregular power supply protection. Enclosure Class: IP68 Insulation Class: F Voltage: 3x415V Speed: 2900rpm OPERATING CONDITIONS Pumped Liquid: Thin, clean chemically non-aggressive liquids without solid particles or fibres. Max. Liquid Temperature: DS wet end-50°C Max. Water Depth: 300m Min. Borehole Diameter: 200mm - 6", 254mm - 8" PUMP DATA Models Motor Size ('') Motor Full Load Current (A) Istart/I Dimensions (mm) Weight (kg) kW HP A B C E* DS 77-3 6 11 15 24.2 4.8 1604 730 874 178 92 DS 77-4 15 20 32 5 1788 785 1003 113 DS 77-5 18.5 25 40 5.5 1991 860 1131 119 DS 77-6 22 30 47 5.1 2179 920 1259 138 DS 77-7 26 35 56.5 5.1 2500 1157 1387 181 DS 77-9 30 40 64 5.7 2694 1050 1644 200 DS 77-11 37 50 78.5 3.7 3080 1180 1900 217 DS 77-15 8 55 75 114 5.9 3400 1350 2424 200 269 E* = Maximum diameter of the pump inclusive of cable guard and motor