elgato Posted February 10, 2012 Report Posted February 10, 2012 Is there a rule about multiple 90 degree fittings in a TPR line? Click to Enlarge 37.63 KB
John Kogel Posted February 10, 2012 Report 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.
Erby Posted February 10, 2012 Report Posted February 10, 2012 Most of the manufacturer's instructions I've read call for a maximum of four 90s on the TPRV line.
Jim Katen Posted February 10, 2012 Report 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.
plummen Posted February 11, 2012 Report Posted February 11, 2012 Id rather see 1 90 after the valve ,unless the size of pipe is increased
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