Compact Progressive Cavity Pump for Emptying Bilge Tank on Yacht

Bilge Pump Replacement needed for a Yacht

A bilge water tank can vary in volume depending on the size of boat, yacht, or vessel it is installed on. The water is usually contaminated with oil that leaks from machines during maintenance, the concentration of oil can vary greatly over time, affecting the viscosity and density. 

The chief engineer of a yacht needed to replace their bilge pump with something more compact as there is limited space in the engine room. Due to the size of the existing pump, there is not enough space left to perform maintenance correctly and safely. 

Specifying One of our Compact R84 Progressive Cavity Wobble Pumps

After obtaining the bilge tank dimensions and volume, we calculated the necessary flow rate to empty the tank in a sufficient amount of time. By doing this, we discovered that the existing pump was oversized and a flow rate of only 5.8m³/hr is required. This enabled us to select one of our compact R84 Progressive cavity wobble pumps, this range is much shorter in length compared to standard PC pumps, however it has the capability to produce high flow rates for its size, very beneficial for installations such as this. 

The benefits of one our Progressive Cavity Wobble Pumps

This wobble pump supplied is only 717x196x240mm but still has all the capabilities of a standard larger progressing cavity pumps. It can self-prime and perform suction lifts, handle thick viscous fluids, and transfer slightly abrasive liquids containing solids. They are positive displacement by nature and therefore can produce pressures up to 6 bar, they also generate a non-pulsating flow and can pump shear sensitive fluids without causing damage. 

We have the capability to manufacture this range in a wide range of material combinations to suit varying marine and industrial application types involving viscous fluids, sludges and liquids containing solids particles. These include cast iron, stainless steel 304, stainless steel 316 and bronze for the casing, stainless steel 304 and 316 for the rotor and finally NBR, EPDM or FPM for the rubber stator. 

This customer is now extremely satisfied with the results we provided as the area around the pump for maintenance has greatly increased. This particular customer did not require marine class certification on this occasion, however this range can be witness tested by IACS members such as Lloyds, DNV, ABS or Bureau Veritas if required. 

Here are the specifications of the supplied bilge pump: