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PRESSURE REGULATING VALVES Type EPRGENERAL DESCRIPTION•Evaporating pressure regulating valves•Direct operated, 2-way valves designed for maintaining suitable evaporating pressure in refrigeration. Fitted at the evaporator outlet to keep suitable set evaporating pressure.Type EPR–BType EPR–DSPECIFICATIONSTYPE NUMBER SELECTIONOperationSpecificationsDirect Operation typeMax. Working Pressure2.5MPa {25kgf/cm2}Airtight Test Pressure3MPa {30kgf/cm2}Fulid Temp. to 100°CPressure AdjustmentIncrease 1604 to 05: 0.08MPa {Approx.0.82kgf/cm2} /rotation1905 to 07: 0.05MPa {Approx.0.51kgf/cm2} /rotationCatalog No.EqualizationPort size (mm)Nominal Capacity (U.S.R.T.) {kW}Adjusting Range (MPa) {kgf/cm2}ConnectionFactory Setting (MPa) {kgf/cm2}Wt. (kg)CT 38°C ⊿P0.074MPa {0.75kgf/cm2} ET 5°CTypeModelR22R134aR404AR407CStyleCopper Tube (O.D.)EPR–1604BInternal152.6 {9.1}1.5 {5.3}1.9 {6.7}2.0 {6.9}0 to 0.6 {0 to 6}Flare1/2"0.3{3}0.31605B5/8"1905B205.5 {19}3.5 {12}4.1 {14}5.4 {19}0.51906B3/4"1604D152.6 {9.1}1.5 {5.3}1.9 {6.7}2.0 {6.9}Solder12.70.21605D15.881905D205.5 {19}3.5 {12}4.1 {14}5.4 {19}0.41906D19.051907D22.23・Nominal capacity is based on condensing temp. 38℃, evaporating temp. 5℃, pressure drop across the valve 0.074 MPa {0.75kgf/cm2}, and Set Pressure R134a...0.1MPa {1kgf/cm2}, R22, R407C...0.2MPa {2kgf/cm2}, R404A...0.3MPa {3kgf/cm2}

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