WIXLIB

Closed Expansion TankEX/WX/KX/PXSeriesCertificate :ISO 9001 Registered (AC-03271)Energy Service Company (ESCO) (97-2-14)Research Center Attached (NO. 931145)

DIAPHRAGM TYPE CLOSED EXPANSION TANKStructure and Operational PrincipalEX/WX-SeriesCharacteristic and Advantage1. Prevention of corrosion for airBy the contact of piping system and air is completely intercepted,an air (or oxygen) can not be mixed. This prevents the corrosionand extends a piping life far.2. Excellent air venting capacityThe closed expansion tank divided water and air chamber by aninner diaphragm completely intercepts the contact of the systemwater and the atmosphere, so that it is come true the best pipingfunction.① The air chamber of expansion tank was sealed with an initialpressure. This time the system water doesn’t flow the inside ofexpansion tank.By the piping system is maintained at an appropriate positivepressure, the air venting capacity is excellent at piping system.3. No limitation in establishment placeIt can be installed every position, so there is no worry about frozento burst and the space application is convenient.4. Expansion of operation temperature scopeBy pressurization it can operate easily at high-temperature watersuch as above 100 ② When a piping system operates and the temperature rises, theexpansion water flows the inside of expansion tank. This timethe volume of the air chamber diminishes and the pressure ofthe expansion tank rises until maximum pressure.5. Smooth operation capacity③ When the temperature falls, the system water contracts and theexpansion water returns to piping system by the pressure ofthe air chamber. With this the volume of air chamber increases,the pressure decreases, and the state goes back to initial.6. Semi-permanent life and energy savingBy the matter due to mixing of air decreases, efficient operation ispossible. (circulating obstacle, pump efficiency decrease, soundarresting, vibrating, and so on)The life of tank and diaphragm is semi-permanent. The maintenance and repair is easy. There is no energy loss due to an evaporation or over flow. This reduces amount of make-up water.Selection Procedures1defSystem Water Content : V [ℓ]Minimum Operating Temperature : TI [ ]Maximum Operating Temperature : TF [ ]Minimum Setting Pressure : PI [kgf/cm2]PI PO PVPO : static pressure for installation position of expansion tankPV : additional pressure for preventing vaporization (Table 2)g Maximum Pressure of Piping System : PF [kgf/cm2]PF PI ΔPMAXΔPMAX PE ― ( A B PV D )PE : inner pressure of piping or setting pressure of relief valveA : surplus against relief valve setting pressure ( PE 0.1 )Table 1 Specific Volume of WaterTemp.S.V.Temp.S.V.[ ][ℓ /kg][ ][ℓ 25761.028991.032371.035901.03959Temp.[ ]S.V.[ℓ 5900B : static pressure at pipingD : static head of circulation pumph Amount of Expanded Water : VE [ℓ]VE V [ v(TF) – v(TI) ]v : specific volume (Table 1)i Acceptance FactorA.F. 1 – ( 1.033 PI ) / ( 1.033 PF )j Minimum Tank Volume (VT)VT VE / A.F.k Select model according to PF and VTTable 2 Additional Pressure for Preventing 2][ ][kgf/cm2][ ][ ][kgf/cm2]below .21403.61801201.61454.3200y The * sign is minimum pressure for the venting of air-vent.5.06.78.711.217.71

Closed Expansion Tank for Heating and CoolingEX-SeriesN Series - ReflexyyyyyNozzle Connection : Screwed EndDiaphragm Mode : DiaphragmCE CertificationColor : Red (Powder Painting)Maximum Working Temperature : 70 Maximum Working Pressure : 6 kgf/cm2MODELVolume[ℓ]Diameter[mm, Ø]Height[mm]ØF[mm]Nozzle[A]Weight[kg]N 50/6N 80/6N 100/6N 140/6N 200/6N 250/6N 300/6N 400/6N 500/6N 600/6N 58085103120 Maximum Working Pressure : 10 kg/ GMODELVolume[ℓ]Diameter[mm, Ø]Height[mm]ØF[mm]Nozzle[A]Weight[kg]S 50/10S 80/10S 100/10S 140/10S 200/10S 250/10S 300/10S 400/10S 500/10S 1823304048547880103Inspection Unit ofKorea IndustrialSafety CorporationEX SeriesyyyyyNozzle Connection : Screwed End (Flange and over 3000ℓ)Diaphragm Mode : Bladder (Disjointing assembly possible)Inspection Unit of Korea Industrial Safety CorporationColor : PRIMER E54506(0.2PB 5.1/8.7)Maximum Operating Temperature : 95 MODELVolume[ℓ]Diameter[mm, Ø]Height[mm]EX - 200L2006141200EX - 300L3006141600EX - 400L4006142000EX - 500L5006142300EX - 600L6007692000EX - 00012332400EX-2500L250012332600– This is the specification of 9.0 kgf/cm2 0 It is a “Stand mode” installed vertically on the bottom,and the supplement piping must establish inexpansion or main piping with separate way. Please, inquire to our company for a product of largevolume (above 2500L) or high pressure (above 9.0)2

Closed Expansion Tank for Water Supply and Hot Water SystemWX-SeriesD & DE Series - Reflexy Nozzle Connection : Screwed Endy CE Certification y Color : Blue (Powder Painting)y All surfaces contacting with water are painted with a protective coatingfor the safety of hygieney Legionella spp. prevention vessel approved at Germany DVGWy Maximum Working Pressure & Temperature : 16 kgf/cm2, 95 D Series [Diaphragm : replacement mm, 28035431529337049046020202020202.53.54.55.56.3 DE Series [Bladder : disjointing assembly possible]MODELVolume[ℓ]Diameter[mm, Ø]Height[mm]Nozzle[A]Weight[kg]DE 60DE 80DE 100DE 200DE 300DE 2801485252525252525252732505585AFE SeriesyyyyNozzle Connection : Screwed EndDiaphragm Mode : Bladder (Disjointing assembly possible)CE Certification y Color : Red (Powder Painting)Maximum Working Pressure & Temperature : 16 kgf/cm2, 95 MODELVolume[ℓ]Diameter[mm, 500200300500409480480740730840252525252732WX SeriesyyyyΦDDiaphragm Mode : Bladder (Disjointing assembly possible)Inspection Unit of Korea Industrial Safety CorporationColor : PRIMER E54506(0.2PB 5.1/8.7)Maximum Operating Temperature : 95 MODELVolume[ℓ]Diameter[mm, 500015703500– This is the specification of 9.0 kg/ G n Unit ofKorea IndustrialSafety CorporationH3

Closed Expansion Tank for Water Supply and Hot Water SystemWX-SeriesCharacteristic of Closed Expansion Tank for Hot Water System Escaping from the previous method relieving with an elevatedwater tank or emitting to a safety valve, this tank prevents thehot water loss and saves the energy by absorbing the expansionwater of hot water system. The method installing a safety valve in order to relieve anexpansion pressure causes the possibility of explosion accidentby breakdown and brings on the leakage by frequent operation. This tank guarantees the safe operation of hot water system, andalso prevents the water hammer.Operational Principal of Closed Expansion Tank for Water Supply Problem of no expansion tankWhen water is used, the water compressed in tank is supplied andthe pressure of air chamber falls. This time the pump is not yetoperated.When the pressure of air chamber diminishes until Cut-in settingpoint, the pump is operated by pressure switch and the watersupply is continued. Even if little water goes out or comes in a fixed space, thepressure increases or decrease quickly because of theincompressibility of water. In case that there is no closed expansion tank for water supply orthe capacity is insufficient on booster pumping system, thiscauses serious problems such as the frequently operation andstop of pump, the frequently damage of instrument parts(pressure switch, relay, electronic switch, Etc.), the breakdownof pump motor due to overload, and so on. Those seriousproblems can bring on the operation impossibility of overallsystem within a short time.In case that the demand of water supply is low, the water of pump issupplied to tank. When the level of water in tank reaches to a Cut-offsetting point, the pump is stopped by pressure switch.4

Air Separator & Air EliminatorAir SeparatorTangential Air Separator Maximum Working Pressure : 10 kgf/cm2Dimension [mm]Max.Flow Weight[lpm][kg]CLDHB1AS25102 206 114.3 305 10221072AS50172 350 165.2 458 143310322½AS65108 404 216.3 415 154450453AS80203 456 267.4 577 187680564AS100254 540 318.5 750 2481200615AS125305 650 406.4 976 3361800796AS150356 704 457.2 1114 37926001168AS200460 810 615 1310 425470020610AS250560 1064 769 1511 476750046712AS300660 1168 914 1650 4951050051714AS350762 1321 1067 1736 48714800998– The other specification or special material is the order product.ModelNozzle[A] Tangential air separator devices will solve your “System Air”problems. Tangential air separators are designed with tangential openingsto create a low velocity vortex where entrained air is separatedand removed from circulation chilled or hot water in a closedsystem. Air Separator Flow Chart Maximum working pressure : 10 kgf/cm2 Maximum operating temperature : 120 Materials : body – Steelflange – KS 10KPilot Operated Air Eliminator #720The #720 Air Eliminator of the AMTROL adopts the PilotOperated Mechanism which solves the leakage problem of a DirectActing-Type Air Vent, and is a high performance Air Vent whichimproves air discharge efficiency. Performance Chart Maximum working pressure : 10 kgf/cm2Maximum operating temperature : 120 Minimum demand pressure : 0.2 kgf/cm2Materials : body – Cast IronPilot part - Bronze5

COMPRESSOR CONTROLLED CLOSED EXPANSION TANKKX-SeriesKX-SERIESThe KX-Series as a closed expansion tank consist of small-sized and light weight air compressor, precise pressure sensor, high reliableautomatic controller, and so on, and the microprocessor based automatic control maintains the system pressure of heating and/or coolingwater circuits within a desirable range at all time. The KX-Series compared with a pressure changed-type expansion tank (EX/WX Series)have merits as follows.① A pressure changed-type expansion tank follows in establishment location, so that the effective capacity and the tank size are changed.But KX-Series, without in establishment location, have a uniform and small-sized.② The effective capacity factor can be until maximum 85%, so the tank size and establishment area can be minimized.③ A precise pressure sensor and a reliable automatic controller maintain the pressure fluctuation of piping system within 0.3 f/cm2,therefore the pressure of piping system is very stable.④ The operation and management are very easy for the automatic control system.⑤ It is an inspection unit of Korea Industrial Safety Corporation, so it is safe.Function of Automatic Control Panelc Comprehensive Operation by the Microprocessor based Control Systemd Digital Display of Water Level in the Expansion Tanke Digital Display of the System Pressuref Easy Setting of the Control Parameters(System Pressure, Tank Water Level, Operating Time)g Replenishing Control of Tank Water (Option)h Display of Alarm Messagesi Saving the Operation Data(System Pressure, Tank Water Level, Events and Alarms)j Expansion Control and Maintaining the desirable System Pressurek LED Display of Device Status (on/off) (Pump, Solenoid Valve)Operational principal and functionFig.1 : At an initial state of piping system, the solenoid controlled valve is shut and the compressor is a stand-still.Fig.2 : When the temperature rises, the expansion water is inflow and the pressure of the air chamber side increases. This time the solenoidcontrolled valve is opened and it discharges the pressurized air. The pressure fluctuation of piping system is controlled within the 0.3kgf/cm2.Fig.3 : When the temperature rises at maximum, amount of expansion water inside the tank become maximum, the solenoid controlled valveis closed, and air discharge is stopped.Fig.4 : When the temperature falls, the expansion water inside the tank returns to the piping system. This time the diminished pressure issupplemented by the operation of the compressor, so the pressure of piping system is always maintained.6