Hep O Performance Data - TG Lynes

41 Hep2O Performance DataStrength and DurabilityPull-out resistanceBS 7291: Part 2: 2001 provides a testprocedure for assessing the pull-outstrengths of pipes from pipes and fittings havebeen tested and offer resistances inexcess of these levels required by BS 7291: 2001are shown in Table pressure resistanceand life expectancyThe ability of a pipe to resist waterpressure depends upon the tensilestrength of the material, whichvaries with pipe has been tested toresist various pressures at varioustemperatures representing normaloperating life cycles. Refer to Table pipes and fittings conformto the long term hydrostaticstrength tests as detailed in BS 7291:Part 1: 2001, Clause life expectancy of not less than 50years can be extrapolated from thisdata, and is based on the range ofintermittent flow temperatures thatthese systems would normallyexperience, ranging between 12 bar20 C and 6 bar 90 exposure to temperatures upto 100 C resulting fromthermostat/system malfunction willnot cause failure, but may shortenthe long term design life of cyclingThermal cycling - the rise and fall inwater temperature during normaloperation - also induces differentand additional stresses on pipes conforms to therequirements of a thermal cyclingtest schedule, to prove the strengthsof a plumbing system, as detailed inBS 7291: Part 1: scheduleis set out in Table outside pipe diameterBS safe maximum pull-out force10mm380N *15mm705N *22mm1190N *28mm1960N *Table 1 BS 7291: 2001

41 Hep 2 O ® Performance Data Strength and Durability Pull-out resistance BS 7291:Part 2:2001 provides a test procedure for assessing the …

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