KOSO
Official website: www.koso.co.jp ↗KOSO is a Japanese control valve manufacturer whose name anchors a group of companies supplying valves and instrumentation across Asia, India and export markets. The core business is the globe control valve — cage-guided bodies from general duty through to high-pressure steam and gas service — supported by its own actuator and positioner production.
The group structure matters to specifiers: affiliated companies in India and other markets build and support KOSO-designed products regionally, giving the line a footprint in projects where Japanese engineering is wanted with local manufacturing and service. The catalogue also covers actuators, positioners and related instrumentation sized to the valve range.
Representative product lines
| Series | Type | Notes |
|---|---|---|
| Globe bodies | Globe | Cage-guided globes from general to high-pressure duty |
| Actuators | Actuators | Pneumatic diaphragm and cylinder actuators built in-house |
| Positioners | Positioners | Electro-pneumatic and digital positioners |
| Group companies | Network | Regional manufacturing and service affiliates across Asia |
Where they fit
Refining, petrochemical, power and general process in Japan and across Asian project markets.