elgato Posted February 10, 2012 Report Share Posted February 10, 2012 Is there a rule about multiple 90 degree fittings in a TPR line? Click to Enlarge 37.63 KB Link to comment Share on other sites More sharing options...
John Kogel Posted February 10, 2012 Report Share Posted February 10, 2012 One elbow on the discharge is OK. Also, I don't think that unit has a temperature probe on it, so it would simply be a pressure relief valve, PRV. Link to comment Share on other sites More sharing options...
Erby Posted February 10, 2012 Report Share Posted February 10, 2012 Most of the manufacturer's instructions I've read call for a maximum of four 90s on the TPRV line. Link to comment Share on other sites More sharing options...
Jim Katen Posted February 10, 2012 Report Share Posted February 10, 2012 Is there a rule about multiple 90 degree fittings in a TPR line? All of the ones that I've seen say that they retain their full discharge capacity with up to 4 90-degree elbows installed on the drain. After that, the discharge capacity is reduced. Link to comment Share on other sites More sharing options...
plummen Posted February 11, 2012 Report Share Posted February 11, 2012 Id rather see 1 90 after the valve ,unless the size of pipe is increased Link to comment Share on other sites More sharing options...
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