Used BUSCH RB0021 #9246759 for sale

BUSCH RB0021 is a type of positive displacement rotary lobe pump. It has a robust and reliable double-acting design and is suitable for applications requiring low pulsating flow rates for the transfer of clean or slightly contaminated liquids. RB0021 features a specially designed heavy-duty casing consisting of corrosion-resistant Duplex steel. This casing is geometrically designed to promote stability and uniform transfer of liquid, while also providing superior overall stiffness and avoiding vibration. The casing is further strengthened with 3mm of contact weld width along each port connection which results in a better and more consistently reliable performance. The pump's internal components feature diamond-honed rotor and stator surfaces for improved flow rate and longer service life. The specialized lobes are made from a high-grade steel, and employ a special anti-splintering feature that reduces air pockets and cavitations that compromise pump performance. The non-contacting design of the pumped liquid further contributes to reduce wear and tear on the rotor and stator, and prolongs overall service life. The drive shaft is constructed from high-strength stainless steel and features a unique cogwheel coupling for a high degree of torque output with low levels of vibration. The shaft also has a built-in shaft seal with a replaceable machined-on wear ring for improved reliability and safety. BUSCH RB0021 is capable of maximum pressure up to 10 bars (145 psi) and flowrates of up to 299L/min (79 GPM). Its temperature range is -40 to +80°C (140°F). The pump is available in a multitude of sizes ranging from 32mm to 150mm (1.25" to 6"), making it suitable for most applications. RB0021 is classified as a type AV2/b eccentric rotor pump with ISO 2858 standards that meet all of the requirements for hygienic pumping. In addition, the pump is designed to meet the ATEX directive for use in hazardous area installations. This is further reinforced through its European Community Directive 94/9/EC conformity. As such, BUSCH RB0021 is extremely reliable and safe for both commercial and industrial applications.