Product Overview
The SUN Hydraulics CWGG CGN-250-BAR is a precision-engineered counterbalance valve (also referred to as a load-holding or overcenter valve) belonging to the pressure control valve family. Manufactured by Sun Hydraulics, a globally recognized leader in high-performance cartridge valve technology, this valve is designed to control overrunning loads and provide reliable load-holding capability in hydraulic circuits. The CGN-250-BAR designation indicates a specific configuration within the CWGG series, with a 250 bar pressure setting. The valve operates on a balanced spool principle, utilizing a pilot-assisted relief function to modulate flow and prevent uncontrolled load descent. Its robust cartridge construction allows for direct integration into manifold blocks, making it an essential component in systems requiring precise pressure regulation and safe load management.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve – Pressure Control Valve (Counterbalance) |
| Model Designation | CWGG CGN-250-BAR |
| Operating Pressure | Up to 250 bar (rated setting) |
| Mounting & Connection | Standard Sun Hydraulics cartridge cavity (industry-standard interface) |
| Adjustment Style | Factory-set or adjustable (dependent on configuration) |
| Seal Material | Nitrile (Buna-N) or Viton (standard options) |
Engineering Features & Advantages
- Precision Load Control: The balanced spool design ensures stable and accurate pressure regulation, minimizing load drift and providing reliable holding of overrunning loads.
- Pilot-Assisted Operation: Integrates a pilot relief function that allows smooth lowering of loads by modulating the valve opening in response to pilot pressure, preventing sudden drops.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened internal components for extended service life and resistance to contamination.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM Sun Hydraulics cartridge cavities, ensuring drop-in installation without modification.
- Compact Cartridge Design: Space-saving construction suitable for manifold mounting, reducing system complexity and potential leak points.
Typical Industrial Applications
This counterbalance valve is commonly employed in heavy industrial scenarios such as plastic injection molding machines (for mold clamping and ejection control), metallurgical presses (for holding and controlled descent of platens), construction and marine hydraulics (for boom and outrigger load holding), and CNC machine tools (for axis counterbalancing and safe stopping). Its precise pressure control makes it ideal for any application requiring reliable load retention and controlled motion.
PRODUCT IMAGES
SUN HYDRAULICS CWGG CGN-250-BAR Counterbalance Valve
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- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
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Shop the genuine SUN HYDRAULICS CWGG CGN-250-BAR Check Valve. This USA-made 250-bar hydraulic component features a poppet-type design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.