KOSHUR Co., Ltd. was founded in 2005 as an independent corporation and is recognized as a domestic leader in manufacturing and designing grooved piping systems. With 20 years of experience in producing grooved couplings & fittings, the company currently competes with the world’s leading companies in this field. It can produce perfectly grooved products according to product standards such as UL, FM, CE PED, KS, NFPA13, and ISO-9001:2015 quality system.
With the craftsmanship that prioritizes customer satisfaction, KOSHUR strives to provide better quality and service satisfying global market trends. Operating its own production base in Korea, KOSHUR also has overseas factories in China and Thailand.
The maker’s products are applicable for a vast array of usages, including fire protection, HVAC (heating, ventilation and air conditioning), water supply/treatment, desalination, mining, marine facilities, and industrial plants. Its grooved piping systems are also available for skyscrapers, buildings, residences, warehouses, and various kinds of infrastructure.

Stainless Steel Grooved Couplings & Fittings
Made of Korea-made raw materials such as 304/316/316L Duplex SS, these couplings and fittings range in size from 32A to 500A. The 90˚ short elbows, with availability ranging from 50A to 150A, have the same C-E values as the ductile short elbows, allowing for more space during installation.

Carbon-Steel Grooved Fittings
Utilizing Korean-made carbon steel (WPB, SPP) as raw material, KOSHUR’s carbon steel grooved fittings range in size from 32A to 600A. The firm’s 90˚ short elbows vary in sizes from 50A to 150A. They have the same C-E values as the ductile short elbows. They ensure easier installation work by permitting sufficient space during installation.

Ductile Iron Grooved Couplings & Fittings
Ranging in size from 25A to 600A, KOSHUR’s ductile iron grooved couplings and fittings are supplied from China (for general markets) and from Thailand (for specialized markets), to better meet different customer needs.

Roll Grooving Machines with Safety Device
Equipped with a locally patented sliding safety cover, KOSHUR’s roll grooving machines effectively prevent hand and finger safety accidents of workers.

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