Saunier Duval 20047005 safety valve

A Saunier Duval safety relief valve for C-CI, Easicom, Energy 2, Energy 7, Essential, Home, SXI, Ultimate 3, Ultracom, Ultracom2, Themaclassic, Energy, Miscellaneous, SI, Sustain, Ultimate 2, Thema, Themaplus, Flexicom, Eden, Betacom, CXI, Ultrapower, Enviroplus, Isofast, Isotwin and Xtramax boilers. This Saunier Duval/Glow Worm boiler pressure relief valve helps to control pressure in a closed system by proportionally opening to relieve excess pressure, preventing catastrophic malfunction. Manufacturer Part Number: 0020047005