What are the Best Features of CTS Self-Priming Centrifugal Pumps?
The CTS Self-Priming Centrifugal Pumps End Suction, Close Coupled and Single Stage feature either an Open (6 mm Solids Passage) or Semi-Open Impeller and are manufactured from Stainless steel AISI 316L as standard (CTS I), or electro polished to Ra <0.8, to offer high mechanical and corrosion resistance for a plethora of hygienic applications (CTS H) at competitive pricing. The self-priming feature fitted to the pumps enables suction lifts up to 4.5 m and is a retrofittable accessory to existing Tapflo CTI & CTH pumps by replacing only one element – the casing with a self-priming chamber.
Design Features & Benefits
The CTS Self-Priming Centrifugal Pump has been innovatively designed with only 19 components which enable them to be maintained and troubleshot in a limited time frame. This results in very short down times and extremely low maintenance cost. In fact, in many cases once installed these pumps are maintenance free! The modular design enables the pumps to be supplied with a variety of different build options making it an incredibly robust and versatile pump suitable for a wide range of both applications and installations.
The CTS Self-Priming Centrifugal Pumps units are available with either 2 pole (high head applications) or 4 pole (low head applications) motors to provide a wide envelope of capacity, detailed as follows:
General Dimensional Information
NOTE: Build specific GA Drawings in 2D as well as DWG and STEP Files are available on request for easy integration into system installations and OEM products. Dimensions are in mm and based on standard build constructions. (*) Dimensions may vary according to motor brands.
Standard Single Mechanical Seals are provided with a range of face materials, Ceramic / Graphite / SiC and O-Rings are available in EPDM / FKM / FFKM or FEP or alternatively the seal can be provided with an OP-Ring (Square O-Ring). This increases the friction between the O-Ring and the back casing and therefore lowering the chances of the static parts of the seal from sticking together.
Lubricated & Externally Quenched Mechanical Seals can also be provided upon request and are ideally used when there is the potential for dry running or where there is a chance for the product to solidify or crystalize. An Oil Pot is connected to the seal chamber and continually lubricates seal during operation. SAE grade 20 Oil is recommended however you must use a fluid compatible with the pumped medium and materials within the pump.
As an alternative, the CTHs can be supplied with ports to facilitate an external quench system. This provides the added benefit of removing heat build-up from the seal face and doesn’t require changing of the lubricating fluid. The max pressure of the quench circuit is 0.5 bar and it is recommended to install a thermo-syphon circulation into the quench circuit.
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