HJ Cooper Hot Water Dairy Cylinders


Range Discontinued
Discontinued August 2019

Made in NZ.

Convenient range of capacities, 250-500 L.

Fully fitted sight glass, convenient side filling and overflow. High quality thermostats with 2 x 3 kW elements. Cylinders are fully insulated with CFC-free polyurethane foam insulation.

Cylinders come with secure tap fitting to increase service life, and a fiver year warranty on the inner cylinder.

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Technical Specifications

Suitable for

Indoor low pressure dairy installations. Not suitable as a pool or spa heater.

Model codes and capacities
Code Capacity Element
HJCD250 250 L 2 x 3 kW
HJCD350 350 L 2 x 3 kW
HJCD450 450 L 2 x 3 kW
HJCD550 550 L 2 x 3 kW

Not required


Cold water inlet - 20 mm
Hot water outlet - 40 mm

  • Copper inner
  • Galvanised steel outer
  • CFC-free polyurethane foam insulation

Low watt density nickel plated copper 1.25 " BSP boss

Maximum pressures

Maximum inlet pressure 120 kPa
Maximum working pressure 120 kPa / 17 PSI


7 " thermostat 120 °C to ensure water reaches 99 °C (max. thermostat setting 99 °C)

TPR valve


Last sold

August 2019