Thermoplastic pumps resist corrosion


THE new range of ARBO thermoplastic mechanically sealed centrifugal pumps is available in a choice of polypropylene, polyethylene, PVDF and PTFE so it resists the effects of aggressive chemicals which can cause corrosion problems for metallic pumps.
By manufacturing all wetted parts out of solid block without the need for injection moulding eliminates the potential for stress-cracking. Furthermore, the combination of tough, non-metallic materials and stress relieving production methods provides outstanding chemical and temperature resistance to ensure safe and reliable pumping, even in the most challenging applications. As well as offering excellent chemical and corrosion resistance, ARBO pumps can handle solid particles up to 3mm, ensuring extended pump operation in the event of process upset.
Introduced in the UK by pumping specialist Michael Smith Engineers these compact yet robust pumps are designed to handle flows up to 500m/hr and heads to 90 metres. They are available in close, or long coupled designs.
In close-coupled configuration ARBO pumps can be specified in either horizontal or vertical mounting options. The close coupled design is a more compact choice as the pump shaft is fixed directly to the motor shaft. A separate bearing housing and flexible coupling are not required which means a significant reduction in wearing parts and also eliminates the potential for motor alignment issues. More details at