DONGEUN VALVE Co., Ltd., established as Dongkang Metal in 1993, specializes in manufacturing industrial and power generation valves optimized for high-temperature and high-pressure environments. The company's main product lines include forged valves, cast steel valves, ball valves, and strainers, supplied to critical infrastructure projects both domestically and internationally. A key technological strength is its patented valve seat damage prevention structure, which effectively resolves chronic leakage issues in valves. The company maintains a robust quality management system, evidenced by its ISO 9001:2000 and 9001:2008 certifications.DONGEUNVALVECo.,Ltd.,establishedasDongkangMetalin1993,specializesinmanufacturingindustrialandpowergenerationvalvesoptimizedforhigh-temperatureandhigh-pressureenvironments.Thecompany'smainproductlinesincludeforgedvalves,caststeelvalves,ballvalves,andstrainers,suppliedtocriticalinfrastructureprojectsbothdomesticallyandinternationally.Akeytechnologicalstrengthisitspatentedvalveseatdamagepreventionstructure,whicheffectivelyresolveschronicleakageissuesinvalves.Thecompanymaintainsarobustqualitymanagementsystem,evidencedbyitsISO9001:2000and9001:2008certifications.
Key Products/TechnologiesKeyProducts/Technologies
DONGEUN VALVE Co., Ltd. produces a diverse range of industrial valves, including Gate Valves, Globe Valves, Lift Check Valves, Swing Check Valves, Y-Strainers, and Ball Valves. The company primarily manufactures Forged Steel Valves for high-pressure applications and Cast Steel Valves suitable for large pipelines. Its products adhere to a wide range of pressure specifications, from API 800 to 1500 classes, and comply with design standards such as API 602 and ASME B16.34. Specifically, Globe Valves are designed for throttling services, offering precise and repeatable flow control characteristics. Gate Valves function as efficient stop valves with minimal pressure drop, providing virtually no flow resistance when fully open.DONGEUNVALVECo.,Ltd.producesadiverserangeofindustrialvalves,includingGateValves,GlobeValves,LiftCheckValves,SwingCheckValves,Y-Strainers,andBallValves.ThecompanyprimarilymanufacturesForgedSteelValvesforhigh-pressureapplicationsandCastSteelValvessuitableforlargepipelines.Itsproductsadheretoawiderangeofpressurespecifications,fromAPI800to1500classes,andcomplywithdesignstandardssuchasAPI602andASMEB16.34.Specifically,GlobeValvesaredesignedforthrottlingservices,offeringpreciseandrepeatableflowcontrolcharacteristics.GateValvesfunctionasefficientstopvalveswithminimalpressuredrop,providingvirtuallynoflowresistancewhenfullyopen.
A core technological asset is the patented valve seat damage prevention structure, certified by the Korean Intellectual Property Office. This technology is crucial for resolving persistent valve leakage issues and enhancing product durability. The innovation involves constructing only the high-temperature sections of the valve seat with high-hardness materials, thereby maintaining durability while reducing costs and improving thermal conductivity. Furthermore, the company has developed valve seat technology for ball valves used in pipelines transporting high-temperature and high-pressure steam or fluids. It also possesses manufacturing expertise for cryogenic valves, such as Cryogenic Gate Valves and Cryogenic Globe Valves, designed for low-temperature environments.Acoretechnologicalassetisthepatentedvalveseatdamagepreventionstructure,certifiedbytheKoreanIntellectualPropertyOffice.Thistechnologyiscrucialforresolvingpersistentvalveleakageissuesandenhancingproductdurability.Theinnovationinvolvesconstructingonlythehigh-temperaturesectionsofthevalveseatwithhigh-hardnessmaterials,therebymaintainingdurabilitywhilereducingcostsandimprovingthermalconductivity.Furthermore,thecompanyhasdevelopedvalveseattechnologyforballvalvesusedinpipelinestransportinghigh-temperatureandhigh-pressuresteamorfluids.Italsopossessesmanufacturingexpertiseforcryogenicvalves,suchasCryogenicGateValvesandCryogenicGlobeValves,designedforlow-temperatureenvironments.
The valves are constructed from various high-quality materials, including ASTM A105, A182-F5, A182-F9, A182-F11, A182-F22, A182-F304, A182-F316, A182-F304L, A182-F316L, A182-F321, A182-F347, A182-F51, A182-F91, and A350-LF2, with other materials available upon request. Various end connection types, such as Socket Welding, Threaded, Butt Welding, and Flanged, are offered to meet diverse industrial site requirements. The valve designs incorporate features like Bolted Bonnet, Welded Bonnet, Outside Screw & Yoke, Solid Wedge Disc, and Renewable Seat, catering to specific application needs.Thevalvesareconstructedfromvarioushigh-qualitymaterials,includingASTMA105,A182-F5,A182-F9,A182-F11,A182-F22,A182-F304,A182-F316,A182-F304L,A182-F316L,A182-F321,A182-F347,A182-F51,A182-F91,andA350-LF2,withothermaterialsavailableuponrequest.Variousendconnectiontypes,suchasSocketWelding,Threaded,ButtWelding,andFlanged,areofferedtomeetdiverseindustrialsiterequirements.ThevalvedesignsincorporatefeatureslikeBoltedBonnet,WeldedBonnet,OutsideScrew&Yoke,SolidWedgeDisc,andRenewableSeat,cateringtospecificapplicationneeds.
Core AdvantagesCoreAdvantages
Expertise in manufacturing forged and cast steel valves specifically for high-temperature and high-pressure applications. The company supplies essential valves to national key industries, including hydroelectric power plants, district heating corporations, combined heat & power plants, and petrochemical plants. Over 30 years of industry experience contribute to accumulated technical know-how and deep market understanding.Expertiseinmanufacturingforgedandcaststeelvalvesspecificallyforhigh-temperatureandhigh-pressureapplications.Thecompanysuppliesessentialvalvestonationalkeyindustries,includinghydroelectricpowerplants,districtheatingcorporations,combinedheat&powerplants,andpetrochemicalplants.Over30yearsofindustryexperiencecontributetoaccumulatedtechnicalknow-howanddeepmarketunderstanding.
Possession of a patented valve seat damage prevention structure, certified by the Korean Intellectual Property Office. This proprietary technology is a critical competitive edge, resolving chronic leakage issues and earning high recognition for product quality from customers. The unique design maintains valve seat durability while reducing costs and improving thermal conductivity.Possessionofapatentedvalveseatdamagepreventionstructure,certifiedbytheKoreanIntellectualPropertyOffice.Thisproprietarytechnologyisacriticalcompetitiveedge,resolvingchronicleakageissuesandearninghighrecognitionforproductqualityfromcustomers.Theuniquedesignmaintainsvalveseatdurabilitywhilereducingcostsandimprovingthermalconductivity.
Operation of a superior quality management system, certified by ISO 9001:2000 and 9001:2008 standards. A corporate philosophy focused on continuous technical development and stringent quality control to achieve customer satisfaction. Demonstrated product stability and durability through supply records to Korea's top five power plants.Operationofasuperiorqualitymanagementsystem,certifiedbyISO9001:2000and9001:2008standards.Acorporatephilosophyfocusedoncontinuoustechnicaldevelopmentandstringentqualitycontroltoachievecustomersatisfaction.DemonstratedproductstabilityanddurabilitythroughsupplyrecordstoKorea'stopfivepowerplants.
Registration as an official vendor for PETRONAS, the Malaysian state-owned energy company, enabling global export expansion primarily in the Southeast Asian market. Proactive acquisition of specialized certifications, such as EAC certification for the Russian market and manufacturing permits for toxic gas valves, demonstrating strong market responsiveness. Maintenance of solid partnerships with major domestic EPC companies and refineries, ensuring a stable domestic market base.RegistrationasanofficialvendorforPETRONAS,theMalaysianstate-ownedenergycompany,enablingglobalexportexpansionprimarilyintheSoutheastAsianmarket.Proactiveacquisitionofspecializedcertifications,suchasEACcertificationfortheRussianmarketandmanufacturingpermitsfortoxicgasvalves,demonstratingstrongmarketresponsiveness.MaintenanceofsolidpartnershipswithmajordomesticEPCcompaniesandrefineries,ensuringastabledomesticmarketbase.
Enhanced production capacity through the expansion and relocation of its new factory to the Busan Jisa Science Industrial Complex in 2022. The ability to accommodate diverse pressure specifications (API 800-1500 class, ANSI 150-4500 class), materials, and connection types, providing customized solutions that meet stringent client requirements.EnhancedproductioncapacitythroughtheexpansionandrelocationofitsnewfactorytotheBusanJisaScienceIndustrialComplexin2022.Theabilitytoaccommodatediversepressurespecifications(API800-1500class,ANSI150-4500class),materials,andconnectiontypes,providingcustomizedsolutionsthatmeetstringentclientrequirements.
Target IndustrieTargetIndustrie
Power generation industry, including hydroelectric and combined heat & power plants.Powergenerationindustry,includinghydroelectricandcombinedheat&powerplants.
District heating supply industry, serving entities like the Korea District Heating Corporation.Districtheatingsupplyindustry,servingentitiesliketheKoreaDistrictHeatingCorporation.
Petrochemical industry, supplying to petrochemical plants.Petrochemicalindustry,supplyingtopetrochemicalplants.
Malaysia (Official supplier to PETRONAS)Malaysia(OfficialsuppliertoPETRONAS)
Russia (EAC certification acquired)Russia(EACcertificationacquired)
Certifications/PatentsCertifications/Patents
ISO 9001:2000 Quality Management System certification.ISO9001:2000QualityManagementSystemcertification.
ISO 9001:2008 Quality Management System certification.ISO9001:2008QualityManagementSystemcertification.
Patent for 'Valve Seat Damage Prevention Structure' from the Korean Intellectual Property Office. This patent involves applying high-hardness material only to the high-temperature parts of the valve seat, enhancing durability, reducing costs, and improving thermal conductivity.Patentfor'ValveSeatDamagePreventionStructure'fromtheKoreanIntellectualPropertyOffice.Thispatentinvolvesapplyinghigh-hardnessmaterialonlytothehigh-temperaturepartsofthevalveseat,enhancingdurability,reducingcosts,andimprovingthermalconductivity.
EAC certification for market entry into Russia.EACcertificationformarketentryintoRussia.
Manufacturing permit for toxic gas valves.Manufacturingpermitfortoxicgasvalves.