All you need to know about screw-in cartridge valves

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Welcome to the impressive world of hydraulics, where precision and efficiency are the cornerstones of excellent performance! In this blog post, we highlight a technical component that forms the basis for many complex hydraulic systems: Screw-in cartridge valves. These compact engineering marvels are indispensable when it comes to accurate, reliable and efficient flow control.

Screw-in cartridge valves from ARGO-HYTOS impress with their versatility and adaptability. Using standardized cavities, the valves can be seamlessly integrated into control blocks or housings. But the advantages go far beyond simple installation.

Dive deeper into the technical details of screw-in cartridge valves with us. Learn about the details that make valves an indispensable component in a wide range of applications. From agricultural and construction machinery to wind turbines: screw-in cartridge valves stand for compactness, performance and precision.

What are screw-in cartridge valves and what is their function?

Screw-in cartridge valves are characterized by their ability to be seamlessly integrated into special mounting holes in control blocks or housings. These standardized mounting holes, also known as cavities, have a screw-in thread and connection channels for the valve functions.

The cavities are optimally sealed by means of seals both among themselves and to the outside. This enables simple and space-saving integration of the screw-in cartridge valves in hydraulic control blocks and also makes maintenance or replacement work much easier.

The versatility of the screw-in cartridge valves is demonstrated by their numerous functions. They can be used as flow control valves to regulate the flow of fluids or gases. They can also be used as directional control valves to control the direction of flow. In this way, they determine the path of the medium through the system.

In addition, they serve as pressure control valves in the hydraulic circuit to regulate the pressure within the system. Finally, they can also act as shut-off valves to stop the flow completely.

What makes ARGO-HYTOS screw-in cartridge valves so powerful?

ARGO-HYTOS screw-in cartridge valves are characterized by their excellent performance and reliability in daily use. The valves have a number of design features that make them an ideal choice for demanding hydraulic applications.

The valve surfaces of our screw-in cartridge valves have an impressive resistance of up to 520 hours in accordance with the salt spray test to DIN EN ISO 9227. In individual cases, this is even up to 1000 hours. This ensures a long service life of 10 million actuation cycles at nominal pressure. In addition, the screw-in cartridge valves offer high functional reliability over a wide temperature range, which enables them to be used in various environments.

Our screw-in cartridge valves operate without restrictions even under high operating pressure. The valves are known for their high flow capacity limits, which are accompanied by low pressure losses. The optimized design allows a balanced relationship between pressure drop, transferred hydraulic power and leakage. This is achieved by spool valves with a decoupled hydraulic section.

The High Performance version of the valves is designed for pressures up to 350 bar, in individual cases even up to 420 bar. The standard version can be used up to 250 bar without restrictions.

The screw-in cartridge valves from ARGO-HYTOS are available in various designs, including:

The difference between spool valves and poppet valves

Spool valves and poppet valves are two important valve types used in hydraulic systems. ARGO-HYTOS offers a wide range of these valves, which are characterized by their technical features and performance.

ARGO-HYTOS spool valves are designed either as directional spool valves for controlling the direction of flow or as pressure valves in spool design for controlling pressures. They have various screw-in threads and can handle an operating pressure of up to 350 bar. Flow rates vary depending on thread size with values from 30 l/min to 150 l/min.

A special feature of this valve design is the tumbling nose feature. This component reduces the eccentricity between the hydraulic part and the screw-in thread in the mold bore that occurs when the valve is tightened. This prevents excessive tightening torques, which in turn prevents the piston from blocking in the valve sleeve.

Poppet valves from ARGO-HYTOS have a ball or conical seat. They can handle a flow rate of up to 150 l/min and an operating pressure of up to 420 bar at all ports. They provide a virtually leak-free seal of up to 3 drops per minute. The valves are available in various designs, including:

normally open and closed versions and
pilot operated or electromagnetically operated variants.

The flexibility of the poppet valves in use is supported by a wide range of solenoid coils, operating voltages and connector variants. The standard surface treatment of the valve and solenoid is a ZnCr3 coating that withstands 240 hours in salt spray according to DIN 9227.

For additional extended robustness, a surface treatment is available to guarantee up to 520 hours. Poppet valves offer a very good ratio between pressure drop, transmitted hydraulic power and leakage and have different manual overrides.

Screw-in cartridge valves from ARGO-HYTOS: The ideal choice for your applications

ARGO-HYTOS screw-in cartridge valves offer a number of advantages that make them the ideal choice for a wide range of applications. They offer an excellent cost-quality ratio and feature a low pressure drop. This results in high transmitted power. This is especially important in applications where efficiency and performance are critical.

Another advantage of ARGO-HYTOS screw-in cartridge valves is that they are particularly easy to assemble and disassemble. This facilitates maintenance and replacement of the valves, which is directly reflected in low downtimes and thus higher overall productivity.

There are many possible applications for screw-in cartridge valves. For example, they are ideal for use in agricultural machinery such as tractors, field sprayers and harvesters. In the construction industry, the valves are used in machines such as excavators, rollers and road finishers. Screw-in cartridge valves are also used in municipal vehicles, such as multifunctional equipment carriers and road sweepers.

In addition, they are an excellent choice for machine tools, including sawing machines, plastic injection molding machines and machining centers. Screw-in cartridge valves also work in wind turbines. Here they perform important tasks in the control and regulation of hydraulic systems.

Arrange a personal meeting with our experts now

ARGO-HYTOS screw-in cartridge valves are an excellent choice for a wide range of applications. The valves offer an optimal combination of performance, reliability and versatility. This makes them an indispensable component in many hydraulic systems.

Are you a manufacturer of agricultural, construction, industrial machinery or wind turbines? In any case, screw-in cartridge valves from ARGO-HYTOS can help make your systems more efficient, reliable and powerful.

Would you like to learn more about our portfolio in the field of valve technology? Or are you considering them for your next project? Then get in touch with us.

Our experienced team of experts is ready to answer your questions. They will also help you find the best solutions for your specific needs. Feel free to visit our contact page. Let's explore together the ways in which ARGO-HYTOS screw-in cartridge valves can improve your hydraulic systems.