MC pump standpipes

Designed to move thick fluids, MC (Medium Consistency) pumps are ideal for transporting pulp in a mill. Pulp is often pumped from a standpipe, a vertical feed pipe integral to the pump. Pumps with standpipes typically pump to and from washers and thickeners, O₂and CLO₂mixers, extraction towers, bleach storage towers, and high-density pulp storage towers.

Challenge

It is important that the proper level of pulp be maintained in a standpipe. A level control in the standpipe does this by actuating a valve downstream of the pump. A malfunctioning level control could result in standpipe overflow, or cause a pump to operate in a no-flow condition overheating and seal damage.