Hep20 Technical Handbook

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The Hep 2 O ® System Standard Pipe Hep 2 O ® Standard Pipe is made from polybutylene in straight coiled or cut lengths, and manufactured to BS 7291: Parts 1 and 2, Class S. Hep 2 O ® Standard Pipe allows a very small amount of oxygen (not air) to enter the system but is negligible compared with that which can enter via header tanks, valve glands and pumps. Fine Adhesive Coating Barrier Layer Fine Adhesive Coating Demountable Fittings Hep 2 O ® Demountable fittings are made predominently from polybutylene. 3 precision-made internal components ensure that the push-fitted joint is robust and watertight yet remains rotatable and, if required, easily dismantled. Barrier Pipe Hep 2 O ® Barrier Pipe has a layer of ethylene vinyl alcohol that prevents the diffusion of oxygen through the pipe wall. The barrier layer also has a fine adhesive coating on each side thus making 5 layers in total. Hep 2 O ® Barrier Pipe, available in straight coiled or cut lengths, is covered by Agrément Certificate 92/2823 and manufactured to BS 7291: Parts 1 and 2, Class S. Conduit Pipe Hep 2 O ® Conduit Pipe is made from flexible polypropylene. It forms part of the Hep 2 O ® Conduit System that allows pipes to be withdrawn for inspection. SlimLine Fittings Hep 2 O ® SlimLine fittings are made predominently from PVDF. 4 precision-made internal components ensure that the push-fit joint is robust and watertight yet remains rotatable but cannot be dismantled. Pipe in Pipe System Hep 2 O ® Pipe in Pipe system incorporates Hep 2 O ® 15mm Barrier Pipe in a pre-sheathed plastics Conduit ready for underscreed installation, saving time and effort. 4
Retaining Cap Grab Wedge Wedge Support Ring ‘O’ Ring Pipe Support Sleeve Hep 2 O ® pipe Ultrasonically Welded Cap Spacer Washer ‘O’ Ring Spacer Washer Grab Ring Pipe Support Sleeve Hep 2 O ® pipe 5
Page 1 and 2: Uniclass L5171 CI/SfB (53) In6 E271
Page 3 and 4: Contents Introduction to Hepworth 2
Page 5: The Hep 2 O ® System Introduction
Page 9 and 10: Typical Plumbing Connections Wash h
Page 11 and 12: Performance Benefits No Scale Build
Page 13 and 14: Stopcock - Cold Water, Hep 2 O ® /
Page 15 and 16: Hep 2 O ® Pipes Cut Lengths - Stan
Page 17 and 18: Hep 2 O ® Demountable Fittings Dou
Page 19 and 20: Hep 2 O ® Demountable Fittings Bra
Page 21 and 22: Hep 2 O ® SlimLine Fittings Straig
Page 23 and 24: Hep 2 O ® SlimLine Fittings Branch
Page 25 and 26: Hep 2 O ® Auxiliary Fittings Adapt
Page 27 and 28: Hep 2 O ® Auxiliary Fittings Wall
Page 29 and 30: Hep 2 O ® Auxiliary Fittings Shut-
Page 31 and 32: Hep 2 O ® Auxiliary Fittings Two P
Page 33 and 34: Hep 2 O ® Auxiliary Fittings Radia
Page 35 and 36: Hep 2 O ® Ancillary Items Pipe Cli
Page 37 and 38: Hep 2 O ® Ancillary Items Copper P
Page 39 and 40: Hep 2 O ® Conduit System Conduit T
Page 41 and 42: Hep 2 O ® Accessories Hep 2 O ® C
Page 43 and 44: Hep 2 O ® Performance Data Strengt
Page 45 and 46: Thermal Characteristics Thermal con
Page 47 and 48: Electrical Safety Hep 2 O ® piping
Page 49 and 50: Connection to Compression Fittings
Page 51 and 52: Connection to Steel Pipes and Threa
Page 53 and 54: Connection to Boilers and Heaters W
Page 55 and 56: Hep 2 O ® Design Considerations In
Page 57 and 58:
Typical Domestic Plumbing Arrangeme
Page 59 and 60:
Introduction Underfloor heating pro
Page 61 and 62:
System Sizing For pipe sizing Hep 2
Page 63 and 64:
100.0 28mm 80.0 60.0 50.0 40.0 30.0
Page 65 and 66:
50.0 28mm 40.0 30.0 20.0 3.0 2.0 1.
Page 67 and 68:
Parameters for Drilling Through Tra
Page 69 and 70:
Hep 2 O ® Manifolds and Microbore
Page 71 and 72:
Pipes in Concealed Locations Hep 2
Page 73 and 74:
Hep 2 O ® Design Considerations Co
Page 75 and 76:
Domestic Timber Floors With Traditi
Page 77 and 78:
To facilitate the possible removal
Page 79 and 80:
Conduit terminations at wall surfac
Page 81 and 82:
2. Fix each conduit pipe to noggins
Page 83 and 84:
Hep 2 O ® Design Considerations Re
Page 85 and 86:
Use of Corrosion Inhibitors Corrosi
Page 87 and 88:
A Flexible Answer for Prestige Apar
Page 89 and 90:
As an alternative to separate Barri
Page 91 and 92:
Valves • Valve types shall have a
Page 93 and 94:
Hep 2 O ® Precautionary Advice Tro
Page 95 and 96:
Raw material sourcing The mining of
Page 97 and 98:
Hep 2 O ® International Standards
Page 99 and 100:
Drylined walls and Hep 2 O ® 80 Du
Page 101 and 102:
Straight connector Demountable 14 S
Page 104:
Edlington Lane Edlington Doncaster
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