[INQ. NO. 1701M36] Youngnam Metal Co., Ltd. is a reliable manufacturer of highest-quality steel pipe coupling products. Since 1986, the company has sold steel pipe coupling products in a wide array of industries including shipbuilding, civil engineering among others. The company was founded in May 1986. In February 1993, its products received the Type Approval from the Korean Register of Shipping and Det Norske Veritas. In October 1997, Lloyd’s Register Quality Assurance Ltd. awarded the company ISO 9002 certification. In April 2003, the company set up a corporation in China.
YN-Coupling Joints, thanks to their great flexibility and economy, are steadily replacing the flanged pipe joints nowadays, from various industrial plants to vessels. These YN-coupling joints are not only to eliminate the welding costs, but also prevent any linear expansion and deflection of the pipes by welding repairs. YN-Couplings
are the easiest way to join and repair pipes of all materials.
They require no special tools or pipe-end preparation. They are flexible, lightweight and fireproof and are used in shipbuilding, wastewater treatment, general industry and the construction sector. YN-Couplings come fully assembled and ready to install. A torque wrench is the only tool required to do the job. YN-Couplings are used to join and repair any plain end pipes or tubes including steel, stainless steel, ductile iron, FRP, PVC, CPVC, C900, concrete pipe, copper and CuNi piping.
Receiving Good Evaluations from Customers
Youngnam Metal has 30 years of experience in manufacturing stainless and plastic pipe couplings & pipe repair clamp joints. Its technical capacity in this field has been highly evaluated by many customers and other parties concerned, not only for comprehensive applications but also for a significant reduction in expenses.
These coupling joints not only save their users welding costs but also prevent any linear expansion and the deflection of piping by welding repairs. Thus, in order to achieve the best reputation in this field of piping connections, Youngnam Metal is rendering its best services to its clients and will make steady efforts to produce better products.
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significantly lower prices. The company exports 80% of its products to foreign countries.


Hi-Clamp has two types of series, the KY series and the GY series. As for the KY series, there are a movable type in which the press bolster or the slide moves along the T-slot and a fixed type of the flange type. Since the cylinder part and lever part are separated, a uniform force is applied on the T-slot shape and measure. GY series are similar to KY series in terms of structure. However, since the surface of the cylinder makes contact with the die, the clamping force is high.
with the feed bar on transfer line or others.
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