Steam Trap

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Steam Trap

Steam TrapFloat type, mechanicalAT 4490BDimension range PN Temperature range Material1/2"-1" 16 Max 300 °C SteelAT 4490BRange of ApplicationFor draining of steam systems, distribution steam pipes and for industrial processfacilities when condensate drainage at saturation temperature and no dammingof condensate are required.Example:SeparatorsHeat exchangersWater heatersBoiling vessels, especially for low steam pressureAutoclavesOil heatersSteam pipesLow pointsAT 4490BQuality AssuranceCertificate SS-EN 10204, type 2.2 and 3.1B, type of certificate has to be specifiedupon ordering.CE-markingFulfil PED 97/23/EC acc. to module H.Material Specification1 Body steel C22.8, 1.04602 Cover nodular iron GGG 40.3, 0.70433 Body gasket CrNi alloyed graphite4 Sealing ring R-Cu995 Capsule stainless steel X5CrNi18-10, 1.43016 Integrated back flow preventor stainless steel X5CrNi18-10, 1.4301Dimension and WeightDN/Conn. 15 20 25S 95 95 95B 155 155 155H 140 140 140Weight 4,7 4,9 5,1Function and DesignMechanical steam-trap working on the density difference between theliquids (condensate) and gas (steam).1 4 56 32BSHFlowThe condensate is discharged at saturation temperature.The steam trap is suitable for varying pressure and capacity.Good air venting at starting up.Steam-tight because of water trap.Is available with alternative seats for optimization of capacities at each Dp.Edition 1, 2008-12-08Page 1 (2)


Steam TrapFloat type, mechanicalAT 4490BTechnical InformationPressure and temperatureDNDimensioningWorking pressureWorkingtemperatureMax bar Max °C Bar15-25 14 300 4, 141)Max Dp to be specified at order.¹) Max ΔpCapacityDN15-25Condensate kg/h1000800600500400300200100R4R14The graph shows the capacities of hot condensate.The capacity of cold condensate is the sum of the chartvalue multiplied by the factor F, plus the capacity ofthe table cold condensate.Please note that both discount factor F and the value of tabel coldcondensate are dependent on the differential pressure.Cold condensatep in bar 1Flow at cold280condensate ~ 20 0 C23603440449055500,11 2 3 4 5 6 8 10 21Differential pressure barFactor F=1 1,21,35 1,45 1,55 1,6 1,65Accessories and OptionsFlanged connection, see AT 4492B.InstallationInternal threads ½”, ¾” and 1”.The trap shall always be mounted with the float branch in horizontal position.MarkingManufacturer, DN, PN, material and flow arrow.How to orderExample: AT 4490B15-14AT 4490B 15 -14Fig. no. DN Max DpAT 4490B 15 4 alt. 14 bar*2025*to be specified at orderRätten till ändringar utan föregående meddelande förbehålls.Armatec ansvarar inte för eventuella tryckfel eller missförstånd.Dokumenten får kopieras endast i sin helhet.Edition 1, 2008-12-08Page 2 (2)

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