DK-LOK Co., Ltd. is a specialized manufacturer of instrumentation fittings and valves established in 1986. The company supplies core components to various industrial sectors including oil/gas, refining/chemical, power generation/EPC, shipbuilding/marine, machinery/equipment, eco-friendly (CNG/RNG/NGV, hydrogen), semiconductor/display, and aerospace/defense.

"DK-LOK is leaping forward as a global company, focusing on customer satisfaction and technological innovation, and growing based on world-class technology. It practices customer satisfaction with the best products and has established technical partnerships with major domestic and international marine equipment manufacturers."

Business Areas

• Energy and Plant Industry: Supplies instrumentation fittings and valves used in various industrial facility piping, including oil/gas, refining/chemical, power generation/EPC, shipbuilding/marine, and machinery/equipment.
• Eco-friendly Energy Industry: Develops and supplies fittings and valves required for CNG/RNG/NGV and hydrogen sectors, and specifically holds patents for safety valves and regulators for hydrogen fueling stations.
• Advanced Industries: Provides fittings and valves used in instrumentation equipment and ultra-high purity piping facilities for the semiconductor/display industry, and is expanding its business into the aerospace/defense sectors.

Products

• DK-LOK Tube Fittings: As a core component connecting tubes for piping, it consists of a nut, ferrule, and body, preventing fluid leakage and maintaining excellent sealing performance even under high pressure and vibration conditions.
• DK-LOK Valves: It produces a wide range of valve products including ball valves, needle valves, check valves, bellows valves, diaphragm valves, gauge valves, quick connects, and relief valves, precisely controlling fluid flow.
• Hydrogen and High-Pressure Fittings/Valves: It develops and supplies special products for the eco-friendly energy sector, such as DKF series fittings that control high-pressure gas flow up to 1034 bar, 700 bar ultra-high pressure hydrogen valves, safety valves and regulators for hydrogen fueling stations.

Special Notes

• Global Market Competitiveness and Technology: As a global company with 124 agencies in 45 countries worldwide, it competes with leading overseas companies, enhancing the status of Korea's material and component industry. It is recognized for its technology and customer satisfaction service at the level of Swagelok, the world's largest fitting & valve manufacturer.
• Application in Various Industrial Fields: It supplies core components to a wide range of industrial facilities, including oil/gas, refining/chemical, power generation, shipbuilding/marine, semiconductors, and hydrogen, securing a stable revenue base.
• Quality Certification and Research & Development: It has received various certifications from the American Society of Mechanical Engineers (ASME) required for manufacturing key equipment for nuclear power plants, possesses international standards such as KEPIC and ISO, and is expanding into high-value-added new business areas through continuous research and development.

Recruitment Information

• Main Hiring Positions: Job postings are primarily confirmed for CNC lathe machining roles in the production department (processing team), as well as sales support and administrative assistant roles.
• Benefits: Welfare benefits such as 5-day work week, monthly leave, 4 major insurances (National Pension, Health Insurance, Industrial Accident Compensation Insurance, Employment Insurance), severance pay, and meal allowances are provided.

💡 A Word from JobPloy
DK-LOK Co., Ltd. is a globally competitive company in the field of fitting and valve manufacturing, supplying core components to various industrial sectors. It is expected that there will be many job roles primarily in production, technology, and sales, with precision machining, quality control, and overseas sales capabilities being particularly important. For foreign workers, Korean language communication skills, along with specialized technical skills or experience in the relevant field, will be helpful for adapting to the job. Understanding the company's growth drivers, such as eco-friendly energy and semiconductors, would also be a plus.