Sludge Pump Working.

Hello Friends,
Sludge Pump are capable of passing solids and of withstanding abrasion which might result from the gritty nature of suspended solids. These pumps are commonly used for sewerage pumping as well as for dewatering in construction works. These pumps work satisfactorily to lift upto 16 metres head.
These pumps may be reciprocating or rotodynamic type. The diaphragm pump is a reciprocating sludge pump whereas the centrifugal non-cloging pump belongs to the rotodynamic type.
Diaphragm Pumps. This pump is a modified form of ordinary reciprocating pump in which the piston of reciprocating pump is replaced by a circular diaphragm. During the pumping operation, the diaphragm alternately expands and squeezes which results in suction and discharge strokes respectively. The diaphragm is made of rubber or other flexible material.
These pumps are very useful in construction projects where water with high proportion of clay, sand and trash is There is no air-locking problem existing in this type of pump.
Centrifugal Non-Clogging Pump. This different from ordinary centrifugal pump. The design of impeller, the casing and the suction and discharge connections is such that passage is allowed for solids without getting chocked up. Solids, mixed in water, upto 8 mm in diameter can be conveniently handled by using these pumps. These pumps are essentially low-head pumps. The suction head of this pump is limited to 3 to 5 metres only with a total pumping head of 13 meters. It has a recessed impeller with large passages between vanes. The suction pipe enters directly into the longer 'eye' of the impeller. A cleaning hole is provided in the suction line close to the eye• Different measures are taken to withstand quick wear of parts so that they are not damaged due to contact with abrasive material.
Sump pumps are centrifugal pumps of non-clogging type and are generally constructed vertical for the ease of being lowered n ar the bottom of the sump and to work with a flooded suction. Therefore• there are no priming proble s involved in sump pumps.
Regard : MFA Civil Engineering