Description:

The Sun Hydraulic Valve CWEG-LGN is a high-performance counterbalance valve manufactured by Sun Hydraulics in the United States. It belongs to the screw-in cartridge valve series. Its primary function is to control overloads, allowing unrestricted, one-way flow of hydraulic oil from the directional valve (port 2) to the load port (port 1). It also functions as a direct-acting, pilot-assisted relief valve, controlling flow from port 1 to port 2. The CWEG-LGN counterbalance valve uses a pilot-assisted function at port 3 to reduce the effective relief setting by the pilot ratio. Because the spring chamber is vented to the external port (port 4), back pressure at port 2 does not affect the valve setting. This design ensures more stable and precise load control, effectively preventing unintended load movement and ensuring the safety and reliability of the hydraulic system.

Applications:

Construction Machinery: In the hydraulic systems of construction machinery such as excavators, cranes, and loaders, the CWEG-LGN counterbalance valve is used to control the load of hydraulic cylinders or hydraulic motors. For example, during the extension and rotation of a crane's boom, this valve ensures smooth boom movement and prevents pressure fluctuations in the hydraulic system caused by load fluctuations.
Industrial Automation: In industrial automation production lines, the CWEG-LGN counterbalance valve can be used to control hydraulically driven manipulators, hydraulic presses, hydraulic shears, and other equipment. Its high-precision control ensures the accuracy of the manipulator's grasping, handling, and assembly movements, improving production efficiency and product quality.
Metallurgy and Heavy Machinery: In industries such as metallurgy, steel, and shipbuilding, hydraulic systems must operate stably under high loads and pressures. The CWEG-LGN counterbalance valve can withstand operating pressures up to 290 bar, making it suitable for heavy equipment in these industries.
Marine and Offshore Engineering: In ship hydraulic systems, such as steering gear, cranes, and anchor windlasses, the CWEG-LGN counterbalance valve ensures stable operation in harsh marine environments. Its corrosion resistance and high reliability make it an ideal choice for ship hydraulic systems. Medical Devices: In the hydraulic systems of medical devices, such as operating tables and rehabilitation equipment, the CWEG-LGN counterbalance valve provides precise control, ensuring smooth operation and enhancing patient comfort and safety.

Advantages:

High-Precision Control: The CWEG-LGN counterbalance valve, with its pilot-assisted function, enables precise control of the hydraulic system load. Its set point should be at least 1.3 times the load pressure, ensuring stable control of the hydraulic oil flow direction and volume even with varying loads.
High Reliability: The valve's floating structure reduces interference caused by excessive installation torque or hole machining errors, extending valve life and reliability. Furthermore, its internal working components are heat-treated for wear, impact, and fatigue resistance, further enhancing valve durability.
Flexible Installation and Interchangeability: The CWEG-LGN counterbalance valve offers excellent installation flexibility and can be installed into the actuator's internal mounting holes, becoming an integral part of the actuator, thus providing more secure protection for the hydraulic circuit. Furthermore, all four-port counterbalance valves, load control valves, and pilot-operated check valves are dimensionally interchangeable, greatly facilitating system design and maintenance.
Low pressure loss and high flow: Sun Hydraulics' cartridge valve design allows for a larger flow path area. Combined with the valve manifold's structural design, this allows the valve manifold to be 50% smaller than comparable valves from other brands. This design not only reduces pressure loss in the hydraulic system, but also improves overall system efficiency while saving space.
High adaptability: The CWEG-LGN counterbalance valve can adapt to a wide range of operating conditions, including high loads, high pressures, and harsh environments. Its wide operating pressure range, up to 290 bar, makes it suitable for a wide range of hydraulic systems.

FAQ:

Q1: Wonder if you accept small orders?

A1: Do not worry. Feel free to contact us .in order to get more orders and give our clients more convener ,we accept small order.

Q2: Can you send products to my country?

A2: Sure, we can. If you do not have your own ship forwarder, we can help you.

Q3: What's your payment terms ?

A3: By T/T,LC AT SIGHT,100% full payment.

Q4: How long is your production lead time?

A4:It depends on product and order qty. Normally, it takes us 15 days for an order with MOQ qty.

Q5: When can I get the quotation ?

A5: We usually quote you within 24 hours after we get your inquiry. If you are very urgent to get the quotation.Please call us or tell us in your mail, so that we could regard your inquiry priority.