Sun Hydraulics: A Pioneer in Hydraulic Valve Manufacturing
Sun Hydraulics is a leading global designer and manufacturer of high-performance hydraulic thread-in cartridge valves and manifolds. These products are critical components in fluid power systems, controlling force and velocity, and enabling motion. Founded in 1970 and headquartered in the United States, Sun Hydraulics has been listed on the Nasdaq since 1997. Sun Hydraulics provides its products and services through a global network of distributors for a wide range of applications in mobile and industrial machinery.
What Are Hydraulic Valves?
Before we dive into Sun Hydraulics, let’s first understand what hydraulic valves are and why they are essential. Hydraulic valves are devices used to regulate the flow of hydraulic fluid in a system. They can be categorized into different types based on their function:
- Directional Control Valves: These valves control the direction of fluid flow, ensuring that hydraulic power is directed to the right components at the right time.
- Pressure Control Valves: These valves manage the pressure within the system, preventing overloading and ensuring optimal performance.
- Flow Control Valves: These valves regulate the flow rate of hydraulic fluid, allowing for precise control over the speed of machinery.
Each type of valve plays a vital role in the overall functionality of a hydraulic system, and Sun Hydraulics excels in producing all of them.

Why Hydraulic Valves Matter
Hydraulic valves are the backbone of hydraulic systems, enabling precise control over the movement and power of machinery. They are designed to handle extreme pressures and temperatures, making them indispensable for heavy-duty applications. Over time, these valves can wear out or become damaged due to the harsh operating conditions they are exposed to. Replacing them with high-quality parts is crucial to maintaining the performance and reliability of your equipment.
Applications of Sun Hydraulics' Hydraulic Valves
Sun Hydraulics' hydraulic valves are widely used in various industries. Here are some of the most common applications:
Construction equipment: Sun's valves are extensively used in excavators, loaders, and other heavy construction machinery to control the flow of hydraulic oil and ensure smooth operation.
Agricultural machinery: From tractors to harvesters, Sun's valves are an important component of the performance of agricultural equipment, helping to regulate power and efficiency.
Industrial automation: In manufacturing plants, Sun's hydraulic valves are used to control the movement of heavy machinery, ensuring accuracy and reliability.
Mobile machinery: Sun's valves are also used in mobile applications such as trucks and buses to control the braking system and other hydraulic functions.
Who are we and what products can we offer you at Sun Hydraulics?
Holdwell is a trusted name in the off-highway aftermarket, specializing in hydraulic valve solutions that meet the demanding requirements of heavy machinery. Whether you need original valves from Sun Hydraulics or aftermarket replacements, Holdwell has you covered. Their extensive product range includes genuine Sun Hydraulics valves and aftermarket options that match the quality and performance of original equipment parts, ensuring your equipment operates efficiently without sacrificing durability.
What can we offer you?
OEM-Quality Valves: Holdwell offers genuine Sun Hydraulics valves, manufactured to the same standards as new equipment. These valves ensure seamless integration and optimal performance.
Affordable Aftermarket Solutions: For customers seeking a cost-effective alternative,
Holdwell offers aftermarket hydraulic valves that are built to the same quality and durability as original equipment parts. These valves undergo rigorous testing and meet industry standards, ensuring they perform just as well as original equipment.
A Wide Selection: Holdwell's inventory includes a wide variety of hydraulic valves to suit different makes and models of off-highway vehicles. Whether you need a directional control valve, a pressure relief valve, or a flow control valve, Holdwell has the right solution for your equipment.
Reliable Customer Service: Holdwell is committed to providing excellent customer service, ensuring you receive the support and guidance you need to make the best choice for your hydraulic system. Its knowledgeable team can help you select the right valve for your specific requirements.

Why You Should Choose Holdwell
In the aftermarket world, not all suppliers are created equal. Holwell stands out for its unwavering commitment to quality, price, and customer satisfaction. Choosing Holwell, you get hydraulic valves designed to handle the harshest conditions while keeping costs under control. Whether you're looking to replace worn valves or upgrade an existing system, Holwell is your go-to supplier for hydraulic valve solutions. With their extensive product line and unwavering commitment to quality, they make it easy for you to achieve your goal of keeping your off-highway vehicles running smoothly. Don't settle for inferior hydraulic valves that could compromise your equipment's performance. Choose Holwell, and you'll get reliable, high-quality hydraulic valves that meet your needs and exceed your expectations.

