LL40XL, LLL40XL - Extended Shank Automatic Reseating Temperature and Pressure Relief Valves
  Series LL40XL, LLL40XL Extended Shank Automatic Reseating Temperature and Pressure Relief Valves are used in commercial water heater applications to provide automatic temperature and pressure protection to hot water supply tanks and hot water heaters. They feature an extended shank for installation on water heaters with extra thick insulation as well as a bronze body with NPT male inlet and NPT female outlet connections, unique thermostat with special thermo-bonded coating, tamper-resistant bonnet screws, automatic reseating feature, and test lever. Model LL40XL is available in sizes 3/4 and 1 in. (20 and 25mm). Model LLL40XL is available in size 3/4 (20mm) with an extra long extended shank. Series 40L, 40XL valves are ASME rated and CSA listed. Temperature Relief: 210°F (99°C), Pressure Range: 75 to 150psi (5.2 to 10.3 bar), Standard Pressure Settings: 75, 100, 125, or 150psi (5.27, 7.03, 8.79, or 10.55 bar).
Size Range: 3/4, 1 in.. (20, 25mm)