Question 1 of 5
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Why does a cooling system using propylene glycol require pumps with oversized motors?

Question 2 of 5
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Which of the following isn’t one of the main benefits of the CM pump range?

Question 3 of 5
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How high is the suction lift of the self-priming CM pump?

Question 4 of 5
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How do you prevent pumps from malfunctioning when transporting hot water with a temperature above 120C°?

Question 5 of 5
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In temperature control, how much higher are running costs compared to capital investment?

Question 5 of 5
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1: Why does a cooling system using propylene glycol require pumps with oversized motors?
Because the viscosity and density of propylene glycol is higher than tap water.
1: Why does a cooling system using propylene glycol require pumps with oversized motors?
Because the viscosity and density of propylene glycol is lower than tap water.
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1: Why does a cooling system using propylene glycol require pumps with oversized motors?
Because propylene glycol has a lower specific heat capacity and therefore requires a higher flow.
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2: Which of the following isn’t one of the main benefits of the CM pump range?
Reliability
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2: Which of the following isn’t one of the main benefits of the CM pump range?
Global usage
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2: Which of the following isn’t one of the main benefits of the CM pump range?
External control
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 do you prevent pumps from malfunctioning when transporting hot water with a temperature above 120C°?
Equip the pump with external cooling.
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4: How do you prevent pumps from malfunctioning when transporting hot water with a temperature above 120C°?
Equip the pump with either single shaft seals designed to keep hot water away from the deal, double-shaft seals that are actively cooled, or use air-cooled tops to insulate the seal chamber.
4: How do you prevent pumps from malfunctioning when transporting hot water with a temperature above 120C°?
Isolating the pump and install heat tracing.
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5: In temperature control, how much higher are running costs compared to capital investment?
20:1
5: In temperature control, how much higher are running costs compared to capital investment?
By a factor of 100 to 1.
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5: In temperature control, how much higher are running costs compared to capital investment?
By a factor of 50 to 1.
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