Apollo™ 1740203 17-400 Safety Relief Valve, 3/4 x 3/4 in Nominal, MNPT x FNPT End Style, 125 psi Pressure, Bronze Body, Domestic
MFG Part#1740203
DSG#510383
Apollo™ 1740203 17-400 Safety Relief Valve, 3/4 x 3/4 in Nominal, MNPT x FNPT End Style, 125 psi Pressure, Bronze Body, Domestic
MFG Part#1740203
DSG#510383
- 17-400 series pressure only relief valves are engineered to protect against excessive pressure buildup due to thermal expansion in hot water supply systems. Both models are CSA certified to ANSI Z21.22 Relief Valves for Hot Water Supply Systems. In addition the 17-402 is design certified to ASME Section IV for hot water relief.