Since its establishment in November 1965, the KOSO Group has been producing and selling control valves, and has developed various control valves for use in a wide range of fields, making great contributions to process automation in various industries. Since 1976, through research and development, we have accumulated rich technology and experience, dedicated to the development, manufacturing, and sales of systems. Including consignment products, we currently have a wide range of products such as sensors, controllers, computers, etc. KOSO Group will continue to provide automation systems to customers as always.
Wuxi KOSO is the only wholly-owned enterprise of Japan KOSO Co., Ltd. in China. The company was established in July 1993, mainly producing various types of atmospheric pressure control valves (ANSI 600 # and below), actuators, and control valve accessories for Japanese KOSO, and selling various original control valves, actuators, and control valve accessories for Japanese KOSO. The company is located in the beautiful the Taihu Lake - Wuxi Liyuan Economic and Technological Development Zone. There are 300 regular employees. It has a complete process route from hot processing, cold processing, assembly to testing. It produces 15000 control valve machines annually, and a large number of high-quality parts are exported to member factories of KOSO groups around the world. The company takes "highly advanced technology", "a complete range of products", "powerful sales" and "meticulous and thoughtful service" as its four pillars, always committed to exploration and innovation. After several years of efforts, it successfully passed the ISO9000 quality system certification in 1997. From 1997 to 2000, the annual sales of control valves exceeded 100 million yuan, and in 2001, the sales exceeded 200 million yuan, maintaining its leading position in the domestic control valve industry.
Choosing Wuxi KOSO products means choosing high-performance and cost-effective products. The company has been manufacturing a large number of high-performance and cost-effective products with quality close to original packaging and prices close to domestic production through the "partial localization" method, which involves importing key components and producing general components domestically. These products are widely used in various industries such as metallurgy, petrochemicals, power plants, and air separation. The company has excellent equipment, and all types of control valves are processed with high precision by specialized CNC equipment purchased from Japan and Taiwan, providing high-precision and high reliability products for your process control.

● Global control valves
● Micro flow valves
● Angle valves
● Butterfly control valves
● V-ball valves
● Eccentric valves
● Gate valves
● Butterfly valves
● Ball valves
● Regulators
● Actuators
● Positioners

● 200 series -Rotary valves
201C    201E    220E

● 300 series - Ball valves
310K

● 400 series - Gate valves
400H

● 500 series - Control valves
500A510A    501B    501G    501GH    501T    501TH    501TJ   510D    510D HP   520D    530G    550G

● 600 series - Butterfly valves
600B    600M   600S

● 700 series -Butterfly valves
710C    720E   

● 800 series - Regulators
800P   820P

● VSD - Low temperature angle valve
VSD

● 3800 series - Electrohydraulic actuators
3800

● 5200 series - Pneumatic spring actuators
5200LA    5200RA

● 6300 6400 6500 7300 series - Cylinder actuators
6300LA   6300RB    6400RB    6500RA    7300RB

● Positioners
EP800    EPL800

Power plants ● Petrochemical ● Steel ● Oil and gas ● LNG ● Fine chemicals ● Food and medicine ● Gas ● Mining