BACKFLOW PREVENTERS - Conbraco Industries - #49

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www.apollovalves.com Accessories Backflow Preventers 49 TYPICAL INSTALLATION Relief valve shown rotated 90°. Valve should be assembled w/hose barb pointed out of page. EXV Series THERMAL EXPANSION RELIEF VALVES The Apollo EXV Thermal Expansion Relief Valves are designed primarily to relieve excessive water pressure build-up caused by thermal expansion. In a closed hot water piping system, as water is heated, thermal expansion occurs. The increase of pressure will exert unwarranted stress on the system components, which may reach harmful levels well before the emergency setting of the main relief valve is reached. By installing the Series EXV, it will control any amount of expanded water without causing pressure increase to exceed maximum setting. FEATURES • Prevents excessive pressure build-up • Protects plumbing fixtures • Extends water heater life • Compact and lightweight design • Economical • Easy to install and requires no special tool • Corrosion resistant • 5 year, domestic warranty Dimensions (in.) – Weights (lbs.) Ordering No. Model No. A B C Wt/Ea 78-300 EXVS34 2.6 3.9 3.2 1.5 78-400 EXVT34 2.5 2.7 3.4 1.1 78-500 EXVS1 3.1 4.5 3.7 2.05 78-600 EXVT1 3.2 3.5 3.9 2.15 78-700 EXVX34 2.5 4.0 3.9 1.32 78 - X X X- R V PRESSURE SETTING 0 - 125 psig 1 - 100 psig 2 - 80 psi RELIEF VALVE CONNECTION 4 - Hose Barb 5 - Pex 6 - Comp. Fitting 7 - 1/2" NPT/SWT Fitting SIZE 3 - 3/4" SWT 4 - 3/4" THD 5 - 1" SWT 6 - 1" THD 7 - 3/4” PEX ORDERING CODE -