JeongWoo Coupling, The Republic of Korea - Komachine Supplier Profile and Product List

- Established in 1995, JeongWoo Coupling specializes in manufacturing pipe couplings for connection and repair clamps for leakage repair. Their products offer simpler and easier installation compared to traditional welding, flange, or grooved joint methods, leading to reduced construction time and cost savings. The company provides solutions applicable to various fluids (water, oil, chemicals) and pipe materials (steel, stainless steel, ductile iron, plastic, fiberglass) by selecting appropriate rubber gaskets. With certifications from major classification societies and water organizations, JeongWoo Coupling demonstrates recognized quality and technology in global markets. Over 70% of its production is exported to more than 40 countries worldwide, highlighting its strong international presence.Established in 1995, JeongWoo Coupling specializes in manufacturing pipe couplings for connection and repair clamps for leakage repair. Their products offer simpler and easier installation compared to traditional welding, flange, or grooved joint methods, leading to reduced construction time and cost savings. The company provides solutions applicable to various fluids (water, oil, chemicals) and pipe materials (steel, stainless steel, ductile iron, plastic, fiberglass) by selecting appropriate rubber gaskets. With certifications from major classification societies and water organizations, JeongWoo Coupling demonstrates recognized quality and technology in global markets. Over 70% of its production is exported to more than 40 countries worldwide, highlighting its strong international presence.
- Grip Type (Models: MJG, MJGL, MJGF, MJGFL, MGLP): Axial restraint joints with double or single grip rings that firmly hold pipes, preventing axial movement. These are alternatives to welding, flanges, and grooved joints, with MJG/MJGL for medium pressure and MGLP for low pressure applications.Grip Type (Models: MJG, MJGL, MJGF, MJGFL, MGLP): Axial restraint joints with double or single grip rings that firmly hold pipes, preventing axial movement. These are alternatives to welding, flanges, and grooved joints, with MJG/MJGL for medium pressure and MGLP for low pressure applications.
- Slip Type (Flexible Type, Models: MJS, MJL, MJET, MJSF, MJSFL): Flexible connection allowing pipe expansion, contraction, bending (2~5°), and absorption of impact, vibration, and noise. Axial forces may cause dislodgement, so pipe fixing is recommended.Slip Type (Flexible Type, Models: MJS, MJL, MJET, MJSF, MJSFL): Flexible connection allowing pipe expansion, contraction, bending (2~5°), and absorption of impact, vibration, and noise. Axial forces may cause dislodgement, so pipe fixing is recommended.
- Slip Grip Type (Flex Grip Type, Models: MJSG, MJSGL): A hybrid combining the features of slip and grip types, with one side gripping the pipe and the other allowing for expansion and contraction.Slip Grip Type (Flex Grip Type, Models: MJSG, MJSGL): A hybrid combining the features of slip and grip types, with one side gripping the pipe and the other allowing for expansion and contraction.
- Hinge Type (Models: MJH, MJHL): A repair clamp with a hinge on one side, enabling easy and quick opening to cover damaged pipe sections.Hinge Type (Models: MJH, MJHL): A repair clamp with a hinge on one side, enabling easy and quick opening to cover damaged pipe sections.
- Bolt-Rotating Hinge Type (Models: MJHT): An enhanced version of the MJH, featuring a bolt-rotating mechanism that significantly shortens installation time by over 30%.Bolt-Rotating Hinge Type (Models: MJHT): An enhanced version of the MJH, featuring a bolt-rotating mechanism that significantly shortens installation time by over 30%.
- Clamp Type (Models: MJR, MJRL): Leakage repair clamps composed of multiple separate slides with locks, offering superior tightening and a wider range of allowable outer diameters.Clamp Type (Models: MJR, MJRL): Leakage repair clamps composed of multiple separate slides with locks, offering superior tightening and a wider range of allowable outer diameters.
- For Elbow Repair (Model: MJER): A specialized clamp useful for repairing leaks on elbows or weld areas, or for protecting weld joints.For Elbow Repair (Model: MJER): A specialized clamp useful for repairing leaks on elbows or weld areas, or for protecting weld joints.
- Grip Type for Fittings (Model: MJCX): A grip type coupling designed for connecting pipe sections with varying thicknesses, such as socket connections.Grip Type for Fittings (Model: MJCX): A grip type coupling designed for connecting pipe sections with varying thicknesses, such as socket connections.
- Fire Resistant Cover (Model: FRC): An optional product designed to protect pipe connection areas susceptible to fire.Fire Resistant Cover (Model: FRC): An optional product designed to protect pipe connection areas susceptible to fire.
- Simple and Rapid Installation: Offers significant advantages over traditional welding, flange, socket, or grooved joint methods by providing easy and quick installation, leading to reduced construction time and cost savings.Simple and Rapid Installation: Offers significant advantages over traditional welding, flange, socket, or grooved joint methods by providing easy and quick installation, leading to reduced construction time and cost savings.
- Versatile Application for Diverse Pipes and Fluids: Capable of accommodating various fluids (water, oil, chemicals) through appropriate rubber gasket selection and suitable for a wide range of pipe materials including steel, stainless steel, ductile iron, copper, plastic, and fiberglass.Versatile Application for Diverse Pipes and Fluids: Capable of accommodating various fluids (water, oil, chemicals) through appropriate rubber gasket selection and suitable for a wide range of pipe materials including steel, stainless steel, ductile iron, copper, plastic, and fiberglass.
- Excellent Seismic Resistance and Shock Absorption: The internal rubber gasket absorbs noise, impact, vibration, bending (2~5°), and expansion, making the products suitable for seismic design applications.Excellent Seismic Resistance and Shock Absorption: The internal rubber gasket absorbs noise, impact, vibration, bending (2~5°), and expansion, making the products suitable for seismic design applications.
- Innovative Repair Solutions: Pioneering development of the world's first elbow repair clamp (MJER) and bolt-rotating hinge type (MJHT) for straight pipe lines, greatly enhancing the convenience and speed of pipe repair work.Innovative Repair Solutions: Pioneering development of the world's first elbow repair clamp (MJER) and bolt-rotating hinge type (MJHT) for straight pipe lines, greatly enhancing the convenience and speed of pipe repair work.
- International Quality and Technology Recognition: Holds ISO 9001 certification, approvals from Korea Water and Wastewater Works Association (KWWA), Japan Water and Wastewater Works Association (JWWA), and Japan Fire Equipment and Safety Center (FESC), along with type approvals from major classification societies such as ABS, BV, DNV, KR, LR, NK, and RINA, ensuring global reliability.International Quality and Technology Recognition: Holds ISO 9001 certification, approvals from Korea Water and Wastewater Works Association (KWWA), Japan Water and Wastewater Works Association (JWWA), and Japan Fire Equipment and Safety Center (FESC), along with type approvals from major classification societies such as ABS, BV, DNV, KR, LR, NK, and RINA, ensuring global reliability.
- High Export Volume and Global Competitiveness: Exports over 70% of its production to more than 40 countries worldwide, establishing a strong global presence and competitive edge through superior quality and reasonable pricing.High Export Volume and Global Competitiveness: Exports over 70% of its production to more than 40 countries worldwide, establishing a strong global presence and competitive edge through superior quality and reasonable pricing.
- Shipbuilding and Offshore Plant Industry: Pipe connection and repair in ships and offshore structures.Shipbuilding and Offshore Plant Industry: Pipe connection and repair in ships and offshore structures.
- Oil & Gas and Petrochemical Industry: Piping systems for oil, gas, and chemical transfer.Oil & Gas and Petrochemical Industry: Piping systems for oil, gas, and chemical transfer.
- Water & Environment Industry: Water treatment piping systems including waterworks, sewage treatment plants, purification facilities, and wastewater treatment facilities.Water & Environment Industry: Water treatment piping systems including waterworks, sewage treatment plants, purification facilities, and wastewater treatment facilities.
- Power Generation Industry: Piping equipment in power plants.Power Generation Industry: Piping equipment in power plants.
- Civil Engineering and Construction Industry: Pipe installation and maintenance in civil engineering and construction projects.Civil Engineering and Construction Industry: Pipe installation and maintenance in civil engineering and construction projects.
- General Industries and Mechanical Equipment: Piping in various industrial facilities such as steel, cement, mining, paper, pharmaceuticals, semiconductors, textiles, food and beverage.General Industries and Mechanical Equipment: Piping in various industrial facilities such as steel, cement, mining, paper, pharmaceuticals, semiconductors, textiles, food and beverage.
- Pipe Maintenance and Repair: Leakage repair and partial replacement of existing pipeline infrastructure.Pipe Maintenance and Repair: Leakage repair and partial replacement of existing pipeline infrastructure.
- Japan, Singapore, Taiwan, Thailand, UAEJapan, Singapore, Taiwan, Thailand, UAE
- UK, France, Spain, Norway, Netherlands, Italy, SwedenUK, France, Spain, Norway, Netherlands, Italy, Sweden
- USAUSA
- AustraliaAustralia
- ISO 9001:2008 and ISO 9001:2015 Quality Management System Certification.ISO 9001:2008 and ISO 9001:2015 Quality Management System Certification.
- Korea Water and Wastewater Works Association (KWWA) Certification (KC + CP).Korea Water and Wastewater Works Association (KWWA) Certification (KC + CP).
- Japan Water and Wastewater Works Association (JWWA) and Japan Fire Equipment and Safety Center (FESC) Approval.Japan Water and Wastewater Works Association (JWWA) and Japan Fire Equipment and Safety Center (FESC) Approval.
- Major Classification Society Type Approvals: ABS (USA), BV (France), DNV (Norway/Germany), KR (Korea), LR (UK), NK (Japan), RINA (Italy).Major Classification Society Type Approvals: ABS (USA), BV (France), DNV (Norway/Germany), KR (Korea), LR (UK), NK (Japan), RINA (Italy).
- Next-Generation World-Class Product Certification (Ministry of Trade, Industry and Energy of Korea).Next-Generation World-Class Product Certification (Ministry of Trade, Industry and Energy of Korea).
- Selected as an Innovative Small and Medium-sized Enterprise (Inno-Biz) (SME Administration).Selected as an Innovative Small and Medium-sized Enterprise (Inno-Biz) (SME Administration).
- Venture Company Confirmation (Korea Technology Finance Corporation).Venture Company Confirmation (Korea Technology Finance Corporation).
- Selected as an Excellent Shipbuilding and Marine Equipment Manufacturer (Korea Shipbuilding & Offshore Plant Association + Korea Marine Equipment Association).Selected as an Excellent Shipbuilding and Marine Equipment Manufacturer (Korea Shipbuilding & Offshore Plant Association + Korea Marine Equipment Association).
- Holds 5 domestic patents, 5 utility models, and 6 designs.Holds 5 domestic patents, 5 utility models, and 6 designs.
- Holds 2 Japanese patents and 1 Chinese patent.Holds 2 Japanese patents and 1 Chinese patent.