
Precision in Every Turn Stability in Every Flow
Precision in Every Turn Stability in Every Flow



At Constant Control Co., Ltd., we believe the heart of every successful industrial operation lies in precision, reliability, and the power of smart automation. As a premier international specialist in high-performance flow control solutions, we bridge the gap between advanced manufacturing and the rigorous technical demands of the global market.
The Philosophy of "Constant"
In an era of rapid industrial transition, our name is our core promise. We are dedicated to providing flow control solutions that offer unwavering performance in the most demanding environments. Whether it is wastewater treatment, HVAC, oil & gas, refining, mining, marine, power station, we ensure your operations remain stable, efficient, and under total control.
Smart Actuation for Modern Industry
We don’t just supply components; we provide the "nerve center" for your piping systems. By focusing on electric and pneumatic actuation, we empower our partners with energy-efficient, IoT-compatible solutions that align with global green energy directives and the move toward smart factory integration.

Pneumatic actuator, compact design, advanced customization in high precision, accurate drive and various output torque with mounting accessories confirming to NAMUR standard.

Designed to meet challenging and hostile working condition featuring simple integration and generates wide torque range

Stable and reliable operation of remote control in compact and robust design.

Electric actuator, robust structure design, light weight as well as large output torque. Provide self-locking and clutch less manual override design eliminates clutching operation in operation method switch.

Compact design, light weight, Plastic housing providing well corrosion resistance. Offering features such as fail safe, bus communication and high speed operating.

A compact multi-turn electric actuator for On/Off and Process control applications. The robust and compact design offers modulation with different speed options that are widely used on gate, knife gate and globe valves.