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Which component is often ‘the weakest link’ in centrifugal pumps?

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Why does a cooling system that uses propylene glycol as coolant demand pumps with oversized motors?

Question 3 of 8
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How high is the suction lift of the self-priming CM pump?

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How have temperature control systems traditionally been regulated?

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Why is ammonia an efficient coolant?

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What is the most efficient and simple way of controlling heating, cooling and refrigeration systems?

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Which load profile will benefit the most from a demand driven control system?

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What is the expected payback time of an investment in system optimisation?

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1: Which component is often ‘the weakest link’ in centrifugal pumps?
Shaft seal
1: Which component is often ‘the weakest link’ in centrifugal pumps?
O-rings
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1: Which component is often ‘the weakest link’ in centrifugal pumps?
Flange
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2: Why does a cooling system that uses propylene glycol as coolant demand pumps with oversized motors?
The viscosity and density of propylene glycol is higher than tap water.
2: Why does a cooling system that uses propylene glycol as coolant demand pumps with oversized motors?
The viscosity and density of propylene glycol is lower than tap water.
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2: Why does a cooling system that uses propylene glycol as coolant demand pumps with oversized motors?
Propylene glycol has a lower specific heat capacity and therefor requires a higher flow.
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3: How high is the suction lift of the self-priming CM pump?
Up to 5 metres
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3: How high is the suction lift of the self-priming CM pump?
Up to 8 metres
3: How high is the suction lift of the self-priming CM pump?
Up to 10 metres
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4: How have temperature control systems traditionally been regulated?
Constant speed pumps and throttling valves regulating the amount of water entering the heat exchanger.
4: How have temperature control systems traditionally been regulated?
Constant pressure valves regulating the amount of water entering the heat exchanger.
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4: How have temperature control systems traditionally been regulated?
Three way valves controlling the amount of water entering the pump.
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5: Why is ammonia an efficient coolant?
Ammonia is able to absorb large amount of heat when it evaporates.
5: Why is ammonia an efficient coolant?
Ammonia is easy to pump.
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5: Why is ammonia an efficient coolant?
Ammonia is a natural coolant with zero ozone depletion.
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6: What is the most efficient and simple way of controlling heating, cooling and refrigeration systems?
Intelligent three way valves controlling the amount of water to the pump and heat exchanger accordingly.
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6: What is the most efficient and simple way of controlling heating, cooling and refrigeration systems?
Intelligent pumps equipped with temperature sensors that measure the outlet temperature and signal the pump to regulate its flow accordingly – without the use of valves.
6: What is the most efficient and simple way of controlling heating, cooling and refrigeration systems?
Thermos element three way valves controlling the amount of water to the heat exchangers.
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7: Which load profile will benefit the most from a demand driven control system?
Low flow rate with relatively few peak periods during the day.
7: Which load profile will benefit the most from a demand driven control system?
High flow rate with relatively few low flow periods during the day.
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7: Which load profile will benefit the most from a demand driven control system?
Varying flow rate with relatively often periods with full flow and no flow.
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8: What is the expected payback time of an investment in system optimisation?
1-12 months
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8: What is the expected payback time of an investment in system optimisation?
1-5 years
8: What is the expected payback time of an investment in system optimisation?
System optimization is rarely economical valuable but should be done due to environmental concerns
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