We at Chemipetro supply pipe flanges and other fittings to high industrial standards. Created in a range of superior, corrosion-resistant alloys such as titanium and super duplex stainless steel, they ensure that pumping systems run at maximum efficiency.

Of course, our pipe flanges are only as good as the systems they are connected to, which is why the new generation of progressive cavity pumps is so impressive. Deceptively simple, the system relies on two key components; an external helix rotor, inside an internal helix stator. Together, they form a tightly-bonded two-piece drive-shaft. The rotor is machined from high-tensile steel, while the stator is moulded from tough rubber or abrasion resistant polymer. The entire unit is tightly bonded inside a steel alloy tube.

The action relies on the rotor always having one less helix than the stator. As the rotor turns, the action forms cavities which move from the suction to the discharge end, moving the fluid along. Because there is a continuous seal between the two helices, the pump maintains a smooth and constant flow, proportional to its speed.

The latest pumps are engineered for quick and easy access to the mechanical seal during maintenance, thus avoiding the need for full disassembly. The use of highly resistant alloys such as duplex steel, plus their smooth flow function and ability to handle liquids with heavy viscosity, makes them ideal for pumping crude oil. Models are available for a variety of pipe fittings, including standard and close-coupled flanges.

Positive displacement pumps are efficient, low maintenance and built to last – the perfect complement to the duplex flanges and pipe fittings we at Chemipetro supply.