Yi Hwan Industry, The Republic of Korea - Komachine Supplier Profile and Product List

- Yi Hwan Industry is a specialized manufacturer of valves, gates, and actuators for various water treatment facilities and industrial plants, including water purification plants, sewage treatment plants, and wastewater treatment plants. The company provides comprehensive engineering services from design and development to verification and modification, offering customized solutions through valve automation and commissioning support. Its mission involves contributing to the preservation of a clean environment and clear water, thereby aiding societal development. Established on January 3, 1997, it operates as a small to medium-sized enterprise.Yi Hwan Industry is a specialized manufacturer of valves, gates, and actuators for various water treatment facilities and industrial plants, including water purification plants, sewage treatment plants, and wastewater treatment plants. The company provides comprehensive engineering services from design and development to verification and modification, offering customized solutions through valve automation and commissioning support. Its mission involves contributing to the preservation of a clean environment and clear water, thereby aiding societal development. Established on January 3, 1997, it operates as a small to medium-sized enterprise.
- Sluice Valves: Valves for water supply systems, meeting KSB 2332 and KSB 2334 specifications. Available with manual, electric, headstock, or cylinder operating mechanisms. Sizes include vertical types from 50mm-1,200mm and horizontal types from 400mm-1,500mm, with capabilities for larger custom sizes. Maximum operating pressure of 10 kgf/㎠, with options for 16 kgf/㎠ or 20 kgf/㎠ upon request. Body materials include cast iron (GC 200) and ductile cast iron (GCD450), disk materials are cast iron (GC 200) and ductile cast iron (GCD450), stem materials are high tensile brass and stainless steel, and seat materials are bronze casting and stainless steel. Model name YHHS Series.Sluice Valves: Valves for water supply systems, meeting KSB 2332 and KSB 2334 specifications. Available with manual, electric, headstock, or cylinder operating mechanisms. Sizes include vertical types from 50mm-1,200mm and horizontal types from 400mm-1,500mm, with capabilities for larger custom sizes. Maximum operating pressure of 10 kgf/㎠, with options for 16 kgf/㎠ or 20 kgf/㎠ upon request. Body materials include cast iron (GC 200) and ductile cast iron (GCD450), disk materials are cast iron (GC 200) and ductile cast iron (GCD450), stem materials are high tensile brass and stainless steel, and seat materials are bronze casting and stainless steel. Model name YHHS Series.
- Electric Drive Sluice Valves: Equipped with a manual operating handle, a powerful actuator, an opening indicator, limit switches for fully open/closed positions, a torque switch for overload protection, and an interlock switch for safety during manual operation. Explosion-proof versions are also available.Electric Drive Sluice Valves: Equipped with a manual operating handle, a powerful actuator, an opening indicator, limit switches for fully open/closed positions, a torque switch for overload protection, and an interlock switch for safety during manual operation. Explosion-proof versions are also available.
- Soft Metal Seat Butterfly Valves: A triple-sealing valve combining a rubber seat and a metal seat for superior watertightness. Features METAL TO NBR, METAL TO METAL, and METAL TO NBR configurations for perfect sealing. Manages reverse pressure through a three-stage sealing process. An eccentric structure prevents seat wear and damage during opening and closing. The rubber seat actively cleans sand and foreign matter, protecting the metal seat from damage.Soft Metal Seat Butterfly Valves: A triple-sealing valve combining a rubber seat and a metal seat for superior watertightness. Features METAL TO NBR, METAL TO METAL, and METAL TO NBR configurations for perfect sealing. Manages reverse pressure through a three-stage sealing process. An eccentric structure prevents seat wear and damage during opening and closing. The rubber seat actively cleans sand and foreign matter, protecting the metal seat from damage.
- Sight Glass Butterfly Valves: Valves designed with a transparent window for clear visual inspection of water flow, disk position, seat leakage, wear conditions, and fluid turbidity inside the valve. This feature significantly enhances facility maintenance, enabling scientific and effective management, precise identification of valve lifespan and leakage causes, and early detection of pipeline issues. It also helps prevent valve damage from foreign substances during operation and extends overall service life.Sight Glass Butterfly Valves: Valves designed with a transparent window for clear visual inspection of water flow, disk position, seat leakage, wear conditions, and fluid turbidity inside the valve. This feature significantly enhances facility maintenance, enabling scientific and effective management, precise identification of valve lifespan and leakage causes, and early detection of pipeline issues. It also helps prevent valve damage from foreign substances during operation and extends overall service life.
- Check Valves: Valves that operate based on backflow, capable of being used with bypass valves or counterweights. Features a shock-absorbing device to prevent sudden closure (water hammer) due to backflow, if requested. Available in sizes from 80mm-1500mm. Maximum operating pressure of 10 kgf/㎠, with options for 16 kgf/㎠ or 20 kgf/㎠ upon request. Suitable for sewage and water applications. Body materials include grey cast iron, carbon steel casting, ductile cast iron, and general structural rolled steel, with disk material being ductile cast iron.Check Valves: Valves that operate based on backflow, capable of being used with bypass valves or counterweights. Features a shock-absorbing device to prevent sudden closure (water hammer) due to backflow, if requested. Available in sizes from 80mm-1500mm. Maximum operating pressure of 10 kgf/㎠, with options for 16 kgf/㎠ or 20 kgf/㎠ upon request. Suitable for sewage and water applications. Body materials include grey cast iron, carbon steel casting, ductile cast iron, and general structural rolled steel, with disk material being ductile cast iron.
- Pump Control Valves: Multi-functional pump discharge valves for flow control, backflow prevention, and water shut-off. Installed in automatic intake, transmission/distribution, booster, and rainwater pump stations. Protects pumps and pipelines while offering simple operation and maintenance without specialized training. Significantly reduces water hammer during pump start/stop and provides water hammer mitigation during power outages. Key features include flow control, perfect shut-off, check valve function, and drain valve function. Utilizes a CONE SEAL TYPE for extended seal life and flawless sealing.Pump Control Valves: Multi-functional pump discharge valves for flow control, backflow prevention, and water shut-off. Installed in automatic intake, transmission/distribution, booster, and rainwater pump stations. Protects pumps and pipelines while offering simple operation and maintenance without specialized training. Significantly reduces water hammer during pump start/stop and provides water hammer mitigation during power outages. Key features include flow control, perfect shut-off, check valve function, and drain valve function. Utilizes a CONE SEAL TYPE for extended seal life and flawless sealing.
- Customized Solutions for Diverse Water Treatment and Industrial Plants: Expertise in manufacturing valves, gates, and actuators for a wide range of industrial applications, including water purification plants, sewage treatment facilities, power plants, and petrochemical plants. Provides comprehensive engineering services from design and development to commissioning, tailored to specific customer requirements.Customized Solutions for Diverse Water Treatment and Industrial Plants: Expertise in manufacturing valves, gates, and actuators for a wide range of industrial applications, including water purification plants, sewage treatment facilities, power plants, and petrochemical plants. Provides comprehensive engineering services from design and development to commissioning, tailored to specific customer requirements.
- Innovative Product Technology: Development of proprietary technologies such as the triple-sealing Soft Metal Seat Butterfly Valve for superior watertightness and durability, the Sight Glass Butterfly Valve for scientific management and early issue detection, and multi-functional Pump Control Valves with water hammer mitigation. These innovations maximize product durability, efficiency, and ease of maintenance.Innovative Product Technology: Development of proprietary technologies such as the triple-sealing Soft Metal Seat Butterfly Valve for superior watertightness and durability, the Sight Glass Butterfly Valve for scientific management and early issue detection, and multi-functional Pump Control Valves with water hammer mitigation. These innovations maximize product durability, efficiency, and ease of maintenance.
- Adherence to Domestic and International Standards: Holds KS Mark certification (No. 00-1607) for ductile cast iron sluice valves for water supply, complying with KSB 2332 and KSB 2334 specifications. Conforms to KSB 2333 standard for butterfly valves. Achieved European CE certification (62/3/2011-4) for butterfly valves, gate valves, and check valves, demonstrating international quality and safety compliance.Adherence to Domestic and International Standards: Holds KS Mark certification (No. 00-1607) for ductile cast iron sluice valves for water supply, complying with KSB 2332 and KSB 2334 specifications. Conforms to KSB 2333 standard for butterfly valves. Achieved European CE certification (62/3/2011-4) for butterfly valves, gate valves, and check valves, demonstrating international quality and safety compliance.
- Proprietary Patent Portfolio: Holds patents for valve seat structure (No. 1177527) and a double-sided double worm reducer attached butterfly valve (No. 1070462). These patented technologies enhance product competitiveness and establish technological barriers to entry.Proprietary Patent Portfolio: Holds patents for valve seat structure (No. 1177527) and a double-sided double worm reducer attached butterfly valve (No. 1070462). These patented technologies enhance product competitiveness and establish technological barriers to entry.
- Customer-Centric Engineering Services: Offers valve automation (RETROFIT) and commissioning & engineering support to assess site conditions and deliver optimized solutions. Flexible in responding to diverse pressure and material requirements, fostering high customer satisfaction and long-term partnerships.Customer-Centric Engineering Services: Offers valve automation (RETROFIT) and commissioning & engineering support to assess site conditions and deliver optimized solutions. Flexible in responding to diverse pressure and material requirements, fostering high customer satisfaction and long-term partnerships.
- Water purification plantsWater purification plants
- Sewage treatment plantsSewage treatment plants
- Wastewater treatment plantsWastewater treatment plants
- Drainage pump stationsDrainage pump stations
- Booster stationsBooster stations
- Power plantsPower plants
- District heatingDistrict heating
- Petrochemical plants and general industrial plantsPetrochemical plants and general industrial plants
- Water supply systemsWater supply systems
- Automatic operation intake pump stationsAutomatic operation intake pump stations
- Water transmission/distribution pump stationsWater transmission/distribution pump stations
- Rainwater pump stationsRainwater pump stations
- South KoreaSouth Korea
- KS Mark Certification (No. 00-1607): Ductile Cast Iron Sluice Valves for Water SupplyKS Mark Certification (No. 00-1607): Ductile Cast Iron Sluice Valves for Water Supply
- Compliance with KSB2334 and KSB 2332 (JIS2062 BS5163) specifications: Sluice Valves for Water SupplyCompliance with KSB2334 and KSB 2332 (JIS2062 BS5163) specifications: Sluice Valves for Water Supply
- KSB2333 Standard: Butterfly ValvesKSB2333 Standard: Butterfly Valves
- Patent: Valve Seat Structure (No. 1177527)Patent: Valve Seat Structure (No. 1177527)
- Patent: Double-Sided Double Worm Reducer Attached Butterfly Valve (No. 1070462)Patent: Double-Sided Double Worm Reducer Attached Butterfly Valve (No. 1070462)
- Hygiene Safety Standard CertificationHygiene Safety Standard Certification
- European CE Certification: Butterfly Valves, Gate Valves, Check Valves (62/3/2011-4)European CE Certification: Butterfly Valves, Gate Valves, Check Valves (62/3/2011-4)
- KCW-2012-0479: Sluice Valves for Water SupplyKCW-2012-0479: Sluice Valves for Water Supply