Clark Solutions S Series Rotary Gear Pump Model 4S

Series S pumps are general purpose positive displacement gear pumps and are a good choice for a variety of recirculating, mixing and transfer applications. The pumps are available in cast iron, ductile iron, 316 SS and bronze. They are designed to operate at speeds to 1800 RPM, pressures to 200 PSI, and flow rates to 32 GPM. The standard seal is a mechanical self adjusting seal with Buna-N elastomer. Lubrication of the replaceable iron sleeve bearings is accomplished by the circulation of the pumped liquid. All models are available with foot or flange mounting and with integral relief valves. These pumps are self-priming and uni-directional. The machining of the gears, shafts and housing faces are held to exacting tolerances (within 0.0005”) This results in a pump with better lift, reduced slippage and longer service life. Standard pumps operate to 250F and, with modifications, to 500F. Helical gears provide very smooth and quiet operation at direct motor speeds in hydraulic, lubrication and transfer applications, in oil field service as well as almost every other industry classification.