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ES-40,140,240,340 For Commercial Water Heater Applications Job Name ––––––––––––––––––––––––––––––––––––––––––– Contractor –––––––––––––––––––––––––––––––––––––––––––– Job Location ––––––––––––––––––––––––––––––––––––––––– Approval Engineer ––––––––––––––––––––––––––––––––––––––––––––– Contractor’s P.O. No. –––––––––––––––––––––––––––––––––– Approval ––––––––––––––––––––––––––––––––––––––––––––– Representative –––––––––––––––––––––––––––––––––––––––– ––––––––––––––––––––––––––––––––––––––––––––– Series 40, 140, 240 & 340 Automatic Re-seating T&P Relief Valves The combined 2-in-1 Temperature & Pressure Relief Valve provides the least expensive and proven means for protection against both excessive temperature and pressure emergency conditions. Fully automatic temperature and pressure relief protection for domestic hot water supply tanks and heaters based on the latest ANSI Z21.22 Listing requirements for temperature discharge capacity. 40XL with test lever and extension thermostat for installation in hot water outlet within the allowable distance from the top of the tank based on latest ANSI Z21.22. Sizes 3⁄4" and 1" (20 – 25mm). 40L with test lever and short thermostat for installation directly in available tank tappings. Sizes 3⁄4" and 1" (20 – 25mm). Series 40L and 40XL Series 140X Series 140, N240 and 340 have the same basic body construction and advanced design features as the Series 40 and are identical to the Series 40 except for discharge capacity and size of inlet and outlet connections. For complete specifications (including specifications for the Series 40) see other side. Sizes 1", 11⁄4", 11⁄2" and 2" (25, 32, 40 and 50mm). Features • Bronze body construction • Non-mechanical seat-to-disc alignment • Thermostat is accurate and proven. Exclusively designed and manufactured by Watts • Tamper-resistant bonnet screws • Series 40 and 140 feature a unique thermostat with a special thermo-bonded coating • Series 140 sizes 1" (25mm) and above are standardly furnished with stainless steel thermostat tube Specifications Series N240X Series 340 Pressure – Temperature Temperature relief 210°F (99°C) Pressure range 75 – 150psi (5.2 – 10.3 bar) Standard setting 75, 100, 125 and 150psi (5.2, 6.9, 8.6 and 10.3 bar) Temperature & Pressure Relief Valves Each hot water storage heater shall be equipped with an automatic temperature and pressure relief valve to protect the heater from excessive pressure and excessive temperature. The device shall be certified as meeting the requirements of ASME low pressure heating boiler code and ANSI Z21.22. The BTU discharge capacity of the device shall be in excess of the BTU input rating of the heater. The T&P valve shall be a Watts Regulator Company Series 40, 140, 240 or 340. Following installation, the valve lever MUST be operated AT LEAST ONCE A YEAR by the water heater owner to ensure that the waterways are clear. Certain naturally occurring mineral deposits may adhere to the valve, blocking waterways, rendering it inoperative. When the lever is operated, Hot water will discharge if the waterways are clear. Precautions must be taken to avoid personal injury from contact with hot water and to avoid property damage. Standards ASME Rated, ANSI Z21.22, Design certified and listed by CSA, National Board of B&PVI to Section IV of the ASME B&PV code and meet current FHA requirements and ANSI Z21.22 in addition to Military Spec. MIL-V136-12D, Type I. IMPORTANT: INQUIRE WITH GOVERNING AUTHORITIES FOR LOCAL INSTALLATION REQUIREMENTS Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements, please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
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