Sun Cartridge Valve LOFD-XDN Easy Maintenance Lightweight Compact Design Energy

Product Specification

Description:

The Sun Hydraulic Valve LOFD-XDN is a logic valve manufactured by Sun Hydraulics and part of the cartridge valve series. This valve is an unbalanced, vent-to-open logic valve, held closed by a spring, and features a built-in shuttle valve. Designed for logic control in hydraulic systems, it switches the flow of hydraulic fluid based on an input signal, enabling precise control of hydraulic actuators. The LOFD-XDN valve operates based on the principle of balancing hydraulic pressure and mechanical force. It consists of a valve body, a valve plug, a spring, and seals. Hydraulic fluid is transferred through the valve plug, and adjusting the position or opening area of the valve plug changes the flow, pressure, and direction of the hydraulic system. The valve plug is a direct-acting design, directly affected by hydraulic oil pressure, controlling flow and pressure through mechanical force balance. The LOFD-XDN valve's unbalanced design means that hydraulic pressure on one side of the valve plug directly affects its open/close state. When no input signal is present, the valve is held closed by a spring, ensuring that hydraulic fluid does not leak when not in operation.
 

Application Areas:

Industrial Automation: In industrial automation, the LOFD-XDN valve is widely used in various hydraulic systems to control the movement of hydraulic cylinders and hydraulic motors. It enables precise speed control and direction switching, making it suitable for automated production lines, robotic joint control, and material handling equipment. For example, in automated assembly lines, this valve can control the gripping, handling, and assembly movements of robotic arms, improving production efficiency and precision.
Construction Machinery: In construction machinery such as excavators, loaders, and cranes, the LOFD-XDN valve controls the movement of hydraulic actuators. It enables fast and accurate direction switching and speed regulation, improving operational flexibility and efficiency. For example, in the control of an excavator's digging arm, the valve can rapidly switch the flow of hydraulic oil based on operator commands, enabling the digging arm to extend, retract, and rotate.
Agricultural Machinery: In agricultural machinery such as tractors and combine harvesters, the LOFD-XDN valve controls hydraulic systems, enabling the lifting, retraction, and other movements of agricultural implements. It precisely adjusts the flow and pressure of hydraulic oil according to specific operational requirements, improving the efficiency and quality of agricultural machinery.
Aerospace: In the aerospace sector, the LOFD-XDN valve is used in aircraft hydraulic systems, such as landing gear retraction and extension, and flight control surface actuation. Its high-precision control capabilities and high reliability meet the stringent hydraulic system requirements of aerospace equipment, ensuring flight safety.
Marine and Offshore Engineering: In ship hydraulic systems such as steering gear, cranes, and anchor winches, the LOFD-XDN valve ensures stable operation and precise control. It can withstand the harsh conditions of the marine environment, such as high humidity and salt spray, ensuring the reliability and durability of ship hydraulic systems.
 

Advantages:

High-Precision Control: The LOFD-XDN valve achieves precise flow and pressure control, making it suitable for hydraulic systems requiring high control accuracy. Its built-in shuttle valve design enables the higher pressure of two input signals to be selected, further enhancing control flexibility and accuracy.
Fast Response: The valve utilizes a direct-acting spool that responds quickly to input signals, enabling rapid directional switching and speed adjustment. This enables the hydraulic system to complete complex movements in a short period of time, improving equipment efficiency. High Reliability: The LOFD-XDN valve utilizes high-quality materials and advanced manufacturing processes, offering excellent wear resistance and contamination resistance. Its spring-biased closing design maintains closed pressure during non-operation, preventing hydraulic fluid leakage and enhancing system safety.
Compact Design: The valve features a compact, cartridge-style design, small size, and lightweight, making it easy to install and integrate into hydraulic systems. This design not only saves space but also reduces system complexity and cost.
Easy Maintenance: The LOFD-XDN valve features a simple structure and easy maintenance. Key components, such as the valve core, spring, and seals, are easily replaceable, reducing downtime and maintenance costs.
Adaptability: The valve adapts to a wide range of operating conditions, including varying hydraulic fluid types, temperature ranges, and pressure levels. Its design enables stable operation in harsh environments, such as high humidity and salt spray.
Efficient and Energy-Saving: By precisely controlling hydraulic fluid flow and pressure, the LOFD-XDN valve reduces energy loss in hydraulic systems. Under low-load conditions, it automatically reduces flow output for energy-efficient operation.

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.