DAYLIFF DBH 4-50 Instrukcja instalacji i obsługi - Strona 5

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PUMP

The Dayliff DB/DBH range of horizontal multistage centrifugal pumps are

designed for continuous duty in various water transfer duties with particular

application in pumping slightly corrosive liquids. The pump has small

physical dimensions, axial suction port and radial discharge and is base

plate mounted. DB suction chamber and pump head are made of grey cast

iron while the impeller and impeller housing are of stainless steel. DBH pump

body, suction and discharge ports are made from AISI 316 stainless steel as

is all the other parts in contact with the pumped liquid. The mechanical seal is

made from silicon carbide designed for easy replacement. Both pump and

continuously rated motor unit are of monoblock design and particular

attention has been paid to quietness and smooth operation.

MOTOR

The pump is coupled to a totally enclosed, fan cooled single phase squirrel-

cage motor with built in thermal overload protection suitable for continuous

duty. The motor can be connected to a power outlet fuse or MCB and

protection must be provided.

Enclosure Class:DB2/4 & DBH - IP54, DB 8/12 - IP44

Insulation Class: F

Voltage:1x220-240V, 3x380-415 (DB8-50, DB12-50)

Speed:2900rpm

OPERATING CONDITIONS

Pumped Liquid: DB - Thin, clean, non-aggressive and non-explosive

liquids solid particles.

DBH - Thin, clean, slightly aggressive but non-explosive liquid without solid

particles or fibres.

Liquid Temperature: 0 C - 110 C

Max. Ambient Temperature: +40 C

Max. Suction Lift: According to NPSH curve plus a safety margin of 1

Max. Operating Pressure: 10 Bar up to 40 C

6 Bar up to 90 C