Watts ES-ETX-ETSX Specification Sheet

For Heating and Cooling SystemsES-ETX/ETSXJob Name ––––––––––––––––––––––––––––––––––––––––––– Contractor –––––––––––––––––––––––––––––––––––––––––––Job Location ––––––––––––––––––––––––––––––––––––––––– Approval –––––––––––––––––––––––––––––––––––––––––––––Engineer ––––––––––––––––––––––––––––––––––––––––––––– Contractor’s P.O. No. –––––––––––––––––––––––––––––––––––Approval ––––––––––––––––––––––––––––––––––––––––––––– Representative ––––––––––––––––––––––––––––––––––––––––ETSXSeries ETX, ETSXPressurized Expansion Tanks forHeating and Cooling Systems*Series ETX and ETSX Pressurized Expansion Tanks forHeating and Cooling Systems are designed to absorb theincreased volume of water created when water is heated.These tanks maintain system pressure below the relief set-ting of the relief valve. The Series ETX and ETSX’s pre-pres-surized steel tank features a durable expansion membranethat prevents contact of the water with the air in the tank.This rugged diaphragm minimizes loss of the air change andensures long and trouble-free life for the system. Features• Precharged at 12psi (83 kPa)• Rugged flexible butyl diaphragm• In-line and free standing models• Compatible with glycol in systems• Steel constructionModelsETX Mounts to supply pipingETSX Free standing SpecificationsFurnish and install as shown on plans a Watts ModelETX/ETSX _____ gallon _____ “ diameter x ____ “ (high) pre-charged steel expansion tank with a fixed butyl bladder. Thetank shall have an NPT system connection and a .302”-32charging valve connection (standard tire valve) to facilitate theon-site charging of the tank to meet system requirements. Thetank shall be factory precharged to 12psi. The tank shall be aWatts Regulator Company Series ETX or ETSX.RatingsMaximum Working Temperature: 220°F (104ºC)Maximum Working Pressure: ETX-15, ETX-30, ETX-60: 75psi (517 kPa)ETX-90 and ETSX Series: 100psi (6.9 bar)Precharge (field adjustable): 12psi (83 kPa)*Not for use on potable water systems.MaterialsDiaphragm: Butyl rubberOuter Shell: Carbon Steel with Epoxy finishETXWatts 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 with-out prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.Quick Sizing ChartBoiler Output Finned Tube Convectors Cast Iron Cast IronNet BTU/H Baseboard or Unit Heaters Radiators BaseboardSuggested Selection20,000 ETX-15 ETX-15 ETX-15 ETX-1530,000 ETX-15 ETX-15 ETX-15 ETX-1540,000 ETX-15 ETX-30 ETX-30 ETX-3050,000 ETX-15 ETX-30 ETX-30 ETX-3060,000 ETX-30 ETX-30 ETX-60 ETX-6070,000 ETX-30 ETX-30 ETX-60 ETX-6080,000 ETX-30 ETX-30 ETX-60 ETX-6090,000 ETX-30 ETX-30 ETX-60 ETX-60100,000 ETX-30 ETX-60 ETX-60 ETX-60125,000 ETX-30 ETX-60 ETX-60 ETX-90150,000 ETX-30 ETX-60 ETX-90 ETX-90175,000 ETX-60 ETX-60 ETX-90 ETX-90200,000 ETX-60 ETX-60 ETX-90 ETX-90250,000 ETSX-30 ETSX-30 ETSX-40 ETSX-30300,000 ETSX-30 ETSX-40 ETSX-40 ETSX-30350,000 ETSX-30 ETSX-40 ETSX-60 ETSX-30400,000 ETSX-30 ETSX-60 ETSX-90 ETSX-40500,000 ETSX-40 ETSX-60 ETSX-90 ETSX-40600,000 ETSX-40 ETSX-90 ETSX-90 ETSX-60700,000 ETSX-60 ETSX-90 ETSX-90 ETSX-60800,000 ETSX-60 ETSX-110 ETSX-110 ETSX-90900,000 ETSX-60 ETSX-110 ETSX-110 ETSX-901,000,000 ETSX-90 ETSX-110 ETSX-110 ETSX-901,200,000 ETSX-90 ETSX-110 ETSX-160 ETSX-901,400,000 ETSX-110 ETSX-160 ETSX-160 ETSX-1101,500,000 ETSX-110 ETSX-160 ETSX-110 (2) ETSX-110Note: These recommendations are based on the average water volume of typical closed systems.Fill pressure 12psi (83 kPa), relief valve set pressure of 30psi (207 kPa) and system temperature of 200°F (93ºC)Dimensions – WeightsMODEL TANK VOL. ACCEPT. CONNECTION DIAMETER HEIGHT WEIGHTVOL.gal. @12 psi in mm. in mm. lbs. kgs.ETX-15 2.1 1.0 1/2" MNPT 8 203 121/2 318 5.0 2.3ETX-30 4.5 2.5 1/2" MNPT 11 279 14 356 10.0 4.54ETX-60 6.0 3.0 1/2" MNPT 113/8 290 173/16 437 11.5 5.22ETX-90 15.0 6.0 3/4" MNPT 16 406 2013/16 528 28.0 12.70ETSX-30 15.0 6.0 1" FNPT 16 406 2111/16 551 32.0 14.51ETSX-40 20.0 8.0 1" FNPT 16 406 2813/16 732 39.0 17.69ETSX-60 33.0 13.3 1" FNPT 16 406 4213/16 1087 57.0 28.85ETSX-90 44.0 17.7 11/4" FNPT 21 533 363/16 919 72.0 32.66ETSX-110 62.0 24.9 11/4" FNPT 21 533 477/8 1217 112.0 50.80ETSX-160 81.0 32.6 11/4" FNPT 21 533 62 1575 123.0 55.79 ETX ETSXHeightHeightDiameterDiameterES-ETX/ETSX 0836 © Watts, 2008USA: 815 Chestnut St., No. Andover, MA 01845-6098; www.watts.comCanada: 5435 North Service Rd., Burlington, ONT. L7L 5H7; www.wattscanada.caWater Safety & F low Contro l Products Job Name field: Job Location field: Engineer field: Approval field 1: Contractor field: Approval field 2: Contractor P: O: No: field: Representative field: