Bare Stem And Square Stem Butterfly Valve

Bare Stem and Square Stem Butterfly Valve is an industrial valve with flexible design and strong adaptability, which is widely used in petrochemical, water treatment, power and HVAC systems. Its core feature is the standardized bare stem valve stem and square shaft structure design, which provides customers with a high degree of freedom in personalized configuration, especially suitable for scenarios that require independent matching of pneumatic, electric or manual actuators.

Performance advantages

1.Lightweight and low cost:

The bracketless design reduces the number of components by 30%, and the weight of the DN200 valve is only 18kg (about 25kg for the traditional butterfly valve of the same specification);

Example: DN150 Bare Stem and Square stem butterfly valves replaced flanged butterfly valves in the renovation of a district heating network, reducing installation time by 50%.

2.High Torque Accuracy:

The square shaft interface matching actuator does not require a coupling, and the torque output efficiency is ≥95% (measured value), which is especially suitable for automation systems with frequent adjustments;

Equipped with a limit dial (0°-90°±2°) as standard, it supports precise opening control.

Media Compatibility:

1.The valve seat can be EPDM (ozone resistance), silicone rubber (high temperature resistance) or PTFE (corrosion resistance), suitable for clean water, low-pressure steam, weak acid and alkaline liquid (pH 4~10);

2. Typical applications: dosing pipelines in sewage treatment plants, CIP circulation systems in food and beverage plants, feed valves for light chemical reactors.