Pitbull’s Simple All-Pneumatic Pump Design Solves Foundry’s Problem
END USER: Automotive manufacturing facility in Ohio
THE APPLICATION:
Pumping foundry sand / wash-down water
THE PROBLEMS:
- The end user’s centrifugal pump was failing prematurely due to upset conditions and the inherent abrasions associated with foundry sand. During an upset condition, foundry sand can fill a large sump, causing a centrifugal pump’s float switch to activate the pump, even though no liquid is present. The result is a catastrophic failure, requiring a rebuild or the purchase of a replacement pump.
- The abrasive nature of the foundry sand would cause wear to the wet end of the centrifugal pump, causing the pump to lose its discharge pressure, which would create line slumping and result in a clogged discharge line.
THE SOLUTION:
The centrifugal pump was replaced with a submersible 6â€x4†Pitbull all-pneumatic pump.
THE RESULTS:
Discharge clogs were a major problem with the centrifugal pumps, but there haven’t been any cases where the discharge has clogged since the Pitbull pneumatic displacement pump was installed roughly three years ago. The main advantage of the Pitbull pump is its simple design (a hollow chamber and two check valves and no impeller), which avoids the inevitable problem of the centrifugal pumps: Wear on a centrifugal pump’s impeller prevents the centrifugal pump from performing at its intended point on the curve, causing line slumping and leading to a clogged discharge line. Installing a Pitbull all-pneumatic pump has solved those problems.
THE SPECS:
Click here for the S6X4S specification sheet.