Hep20 Technical Handbook
Hep20 Technical Handbook
Hep20 Technical Handbook
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Hep 2<br />
O ® Design Considerations<br />
Construction Types & Water Distribution<br />
Domestic Timber Floors<br />
With Traditional Joists or<br />
Engineered Joists<br />
Table 15 Comparative Quantities of Materials for Hep 2 O ® and Copper<br />
for a Typical Domestic Central Heating Installation<br />
Hep 2 O ® Pipe and Fittings<br />
Copper Pipe and Fittings<br />
Pipes Code Quantity Pipes Quantity<br />
15mm Pipe – 100m Coil HXP100 100m 15mm pipe – 6m lengths 102m<br />
22mm Pipe – 6m Lengths HXP06 24m 22mm pipe – 6m lengths 24m<br />
SlimLine Fittings<br />
Fittings<br />
15mm Straight Connectors HX1/15 3 15mm straight connectors 21<br />
15mm 90º Elbows HX5/15 3 15mm 90º elbows 19<br />
15mm Equal Tees HX10/15 16 15mm equal tees 16<br />
Auxiliary Fittings (terminal fittings)<br />
Terminal Fittings<br />
15mm Draincocks HX32/15 2 15mm draincocks 2<br />
15mm Radiator Valves HX73/15 24 15mm radiator valves 24<br />
Ancillary Items<br />
Ancillary Items<br />
15mm Clips HX85/15 30 15mm clips 55<br />
15mm Support Sleeves HX60/15 90 –<br />
15mm Cold Forming Bends HX75/15 2 –<br />
Demountable Fittings<br />
22mm Fittings<br />
22mm Straight Connectors HD1/22 3 22mm straight connectors 5<br />
22m 90º Elbows HD5/22 3 22mm 90º elbows 8<br />
22 x 15 x 15mm Tees HD14/22 4 22 x 15 x 15mm tees 4<br />
22 x 22 x 15mm tees HD13/22 2 22 x 22 x 15mm tees 2<br />
22mm Equal Tees HD10/22 2 22mm equal tees 2<br />
Ancillary Items<br />
Ancillary Items<br />
22mm Clips HX85/22 10 22mm clips 20<br />
22mm Support Sleeves HX60/22 30 –<br />
22mm Cold Forming Bends HX75/22 2 –<br />
It can be seen that through the use of Hep 2 O ® in the above table, the<br />
number of fittings, principally straight connectors and elbows is significantly<br />
reduced. Read with Figure 21 on page 71.<br />
Exploiting the characteristics of Hep 2 O ® , including its natural flexibility,<br />
when designing a plumbing installation will reduce installed cost by between<br />
20-40% in comparison with rigid metal systems.<br />
72
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