GC Vertical In-line pumps

Extensively used in building services applications for the circulation of hot and cold water, and for arduous industrial duties, the GC pump range is particularly favoured for its compact design and small footprint.

An extensive range of pumps with discharge sizes from 40 mm to 300 mm.

Widest choice of materials of construction and options to suit many industrial and building services specific requirements.

Competitively priced and manufactured from components held in stock, with reliable prompt deliveries.

All pumps are manufactured strictly to ISO 9001 quality control standards.

Download technical data booklet 1.32 Mb


  • Chilled water circulation
  • Condenser water
  • LTHW systems
  • Pressure boosting
  • District heating systems
  • Industrial liquid transfer
  • Oils, solvents and process liquids
  • Drinking and potable water
  • Marine and shipboard service

Operating Data

  • Flow rates up to 300 l/sec
  • Head up to 160 metres
  • Temperature -200C to +1300C


The GC range are vertical In-line centrifugal pumps, close coupled to an electric motor. The top-pull-out construction allows access to the impeller and mechanical seal without disturbing the suction and discharge pipework. Suction and discharge flanges are arranged on a common centreline for easy installation into a pipeline. The single stage closed impeller, with double curvature vanes for optimum efficiency and good suction performance, is statically and dynamically balanced for vibration free operation.

Electric motors

Apex GC pumps are supplied with a TEFC IP55 electric motor. Alternative motors including Eexd flameproof motors are readily available.


The pump pressure containing parts are cast in a variety of materials, selected  to suit the working pressure of the pump, and to be compatible with the liquid being handled. Available materials are:

  • Cast iron
  • Ductile iron
  • Cast 316 Stainless steel
  • Cast bronze
  • Cast steel
  • Specialist steels eg Duplex, Hastalloy, Titanium


Standard flanges are drilled to the British Standard BS4504, with pressure rating to suit the specific application:

  • BS4504 PN16 | 16 bar working pressure
  • BS4504 PN25 | 25 bar working pressure
  • BS4504 PN40 | 40 bar working pressure

ANSI standard flanges drilled to 150 lb or 300 lb ratings and all other standards are available on request.


The standard arrangement is a single mechanical seal. Double seals, balanced seals, cartridge seals and packed gland seals can be fitted to suit the application and to meet customers’ preferences.

Service and support

Technical advice, spares, repair and service are available from Apex Pumps and authorised distributors.

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