Heavy Duty Close Coupled

Close coupled (cc) series pumps for heavy duty applications

ccseries2

Design Features

  • Casing/Impeller/Intermediate Cover/Motor End/Coupling manufactured in Spheroidal Graphite Iron complying within AS 1831 400/12 grade
  • Shaft - AS2837-316 or 431 grade stainless steel.
  • Fasteners - High tensile 4.6 - 316 grade stainless steel.
  • Gaskets / Seals / O-rings - insertion rubber, nitrile or viton.
  • Mechanical seal - rubber bellows type with optional seal seat materials.
  • Ball bearings - oversize heavy duty sealed for life or grease lubricated.

Important note: Each build is application specific and assembly variations in Design, Construction & Materials are available. This web brochure indicates only one type of configuration.

Overview of Design

In general these pump units are designed utilising heavier material sections than standard or ISO type pumps.

General Components

Spheroidal Graphite Iron (SG) complying within AS 1831 400MPa Tensile with 12% Elongation is utilised for cast pump components (casing, intermediate cover, impeller). The main advantages for using this material are a) excellent machining properties, b) wears better than cast iron and can sustain heavy operational use.

Stainless Steel complying with AS2837 up to 1100Mpa Tensile is used for shafts because of its high strength and corrosion resistance properties compared with AS2837-316 grade Stainless Steel which is mainly used on basic grade pumps.

Ancillary Components

All Gaskets and Seals utilised on assembly are manufactured from proven long life materials.

The Ball Bearings fitted to the electric motor rotating element are long life heavy duty with normal or C3 class internal clearances which can be supplied in grease lubricated or sealed for life assemblies.

All Fasteners are manufactured from AISI-316  approx 4.6 grade Stainless Steel primarily for corrosion resistance.

Mechanical seals are to DIN 24960 and are rubber bellows type with hard faced seats. Alternate sealing options available.

Electric motors fitted are to suit tropical conditions

For client confidence our design, production, quality assurance and control services are all managed from our head office and manufacturing facility. In support of this our service department offers technical backup, installation, maintenance and spare parts for the operational life of the product.

(pdf full print version)