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SASR Norms & Standards Vol 2 new.indd - Sport and Recreation ...

SASR Norms & Standards Vol 2 new.indd - Sport and Recreation ...

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• All components shall be made of non-toxic materials <strong>and</strong> must be reasonably resistant to<br />

corrosion under operating conditions.<br />

• Components must be strong enough to be able to withst<strong>and</strong> pressures 150 % of normal<br />

operating conditions.<br />

• Piping must be installed in such a manner that they do not pose a hazard to the users.<br />

• Pipes must comply with the following sizes <strong>and</strong> fl ow rates show in the following table,<br />

unless accompanied by a hydraulic design:<br />

PIPE SIZE 32mm 38mm 50mm 63mm 76mm 100mm 150mm<br />

GPM PRESSURE SIDE 25 60 90 140 220 350 800<br />

GPM PRESSURE SIDE -<br />

COPPER<br />

20 48 72 96 176 280 640<br />

GPM SUCTION SIDE<br />

TOTAL DYNAMIC HEAD<br />

15 35 50 80 140 220 450<br />

The total dynamic head of the reticulation system shall be calculated. In the absence of any calculations<br />

the following table may be used:<br />

DISTANCE FROM THE MAIN DRAIN TO THE PUMP TOTAL DYNAMIC HEAD (TDID)<br />

300 – 7620 mm 55<br />

7620 – 15240 mm 60<br />

15240 – 22860 mm 65<br />

22860 – 30480 mm 70<br />

30480 – 38100 mm 75<br />

38100 - 45720 80<br />

Beyond 45720 mm Calculations are Required<br />

PUMPS AND MOTORS<br />

Pumps <strong>and</strong> motors are to be installed on each water circulation system <strong>and</strong> shall conform to the<br />

following:<br />

• Pumps must be sized to meet but exceed the fl ow rates required for fi ltering against the<br />

total head developed by the complete water circulation system.<br />

• Pumps must be sized to comply with the required turnover rates.<br />

Swimming<br />

• All equipment must be readily <strong>and</strong> easily accessible for inspection, maintenance <strong>and</strong> repair.<br />

When pumps are installed below the waterline, valves must be installed on permanently<br />

connected suction <strong>and</strong> return lines. The valves must be removable when required.<br />

80

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