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Subsea Oil & Gas for Winch


Case Study: Subsea Oil & Gas for Winch

Customer: Subsea Oil & Gas for Winch 

Application: Sea water cooling pumps

Equipment Supplied: 5 x Long coupled centrifugal pumps

Customer Location: UK

Equipment supplied

5 x Azcue AN long coupled end suction centrifugal pumps

  • Type: AN 40/250
  • Long coupled
  • Fluid: Sea water
  • 18m³/hr at 25m head
  • Bronze casing and impeller
  • S/discharge Ø: 65/40
  • 1750RPM, 3.5Kw
  • 440V/3Ph/60Hz

Enquiry

A subsea oil and gas company contacted us with an enquiry for five sea water cooling pumps for use on their oil and gas rig, to cool the winches that are continuously used. They needed these pumps on a quicker than the usual 6-8 week lead time that most bespoke manufactured pumps run at. 

Key challenges:

  • Pump to be under continuous operation
  • Able to handle seawater without corroding over time
  • Quicker than standard lead time required

Solution

The natural choice of pump when pumping water is a centrifugal pump. We supplied these centrifugal pumps in bronze, ensuring all wetted parts that come into contact with the seawater are non-ferrous and will not corrode overtime. The long coupled design of the AN model separates the pump from the motor allowing easier maintenance and also reducies the risk of any fluid entering the motor in the event of a mechanical seal failure. We specified these sea water pumps to be fitted with 4 pole motors running at 1750RPM - the slower motor speed reduces the wear on the pump in the long term making them perfect for 24/7 applications such as this. 

As we offer a fast production on selected Azcue pumps, we were able to get these five sea water pumps manufactured and delivered to the customer in just over 4 weeks.


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