Control Valve Cage

The control valve cage is specially designed using the latest advances in control valve technology. It is used to control a wide range of relatively clean liquids and gases at high differential pressures. The valve is configured with flow-to-open or flow-to-closed internals and is ideally suited for steam, gases or liquids, where flow-to-closed is typically used for liquid service and flow-to-open for steam and gases.The Control valve cage is designed primarily for severe service applications where anti-cavitation or low-noise internals are required. In most cases, high pressure drops under process conditions may cause corrosion, noise or vibration that can affect process control. The control valve cage is a good solution for such severe service applications.

The control valve cage is very flexible and allows for a wide range of valve insert types to be installed in the valve body. In addition, its cage-guided construction reduces plug vibration and provides consistent performance throughout the stroke. All control valve cages feature a quick-change design that ensures easy serviceability and trim replacement.

Multi-spring - The multi-spring design allows for very low hysteresis and deadband.

Proven valve insert design - Single P-port, multi-stage, V-groove cage.

Failure Mode - Failure to shut off due to air leakage is standard. - Failure to open due to air leakage is also available. - Diaphragm, piston, hydraulic, and electric actuation available.

Quick-change valve internals - All internal parts can be easily inspected by removing the bonnet and cage.

Fittings - A full range is available to meet requirements.

What is Cage Guided Globe Control Valves?

SUPCON is a specialist control valve manufacturer of cage-guided globe control valves designed to meet the critical service process control requirements of a variety of applications in the oil and gas, petrochemical, and power industries. 

Cage-type control valves are designed for balanced plugs or unbalanced plugs. The difference point is the plug of the balanced cage-guided globe valve has a balancing hole located at the top of the plug. This trim is suited for both high and low-pressure drop conditions. 

The unbalanced plugs will generate an inner force, which equals differential pressure across the plug plus the plug area. F= P x A

The standard cage trim is designed with special window shapes which depend on the flow characteristic(linear, equal percentage, quick opening, and others)of the control valve.

Performance characteristics

1, the third generation of S-type smooth casting body cavity, through the CFD (Computational Fluid Dynamics) to improve the second generation, with a more efficient average flow rate, with a greater flow capacity, reduce the initial investment. 2,

Comply with ASME, the valve body and the upper bonnet through the double head double head bolt

3. Press-fit together. Robust cage guide and unique balanced sealing ring (GF TFE structure for normal temperature, graphite 1398) improves the stability of valve plug movement & Figure lock structure for high temperature), reduces vibration and mechanical noise.

4. solid cage is adopted to protect the valve body from steam and cavitation damage. s streamlined passage, low pressure drop loss, high flow rate and wide control range.

SUPCON globe control valve:

Founded in March 1993, SUPCON is one of China's industrial controls valves leading manufacturer and supplier of automation and information technology, products and solutions. We can provide high quality single seat globe valves, cage globe valves, bellows globe valves.


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