Salamander Pumps Right Pump Series, Инструкция по установке и гарантийный талон, Страница: 13 / 28

13
Helpful
Guidelines -
Cold Water Supplies and
Storage
Aeration of pump and
cylinder from a cold water
storage tank
This occurs when the incoming cold mains ball
valve is positioned above the cold feeds to the
cylinder and to the pump – aerated water is
drawn into the pump as illustrated.
Figure 15: Aeration
Chronic aeration of the pump occurs when this
problem is combined with inadequate storage
capacity and/or when the volume of water
drawn by the pump and other services exceeds
the refill rate and creates a vortex which draws
air and possibly debris into the pump.
Cold storage usable capacity
The usable capacity of cold storage is easily
calculated as the capacity of water in the cold
tank above the cold feeds to the cylinder, the
pump and other outlets – see formula.
Formula for calculation on
rectangular tank:
Depth (15”) x width (23”) x length (36”)
= 12,420 cu inches
Volume cu inches (12,420) x 0.01639
= 203.56 litres
Volume litres (203.56) x 0.22
= 44.78 gallons.
Formula for calculation on
circular tank:
Depth (15”) x radius (17”) x radius (17”)
x 3.142 (Pi)
= 13,621 cu inches
Volume cu inches (13,621) x 0.01639
= 223 litres
Volume litres (223) x 0.22
= 49 gallons.
Figure 16
The bottom of the cold
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