HD – DR (50 series)-Pilot Operated Pressure Reducing Valve

Description

HD – DR (50 Series) – Pilot Operated Pressure Reducing Valve

Increase the performance and durability of your hydraulic systems by using the HD – DR (50 Series) Pressure Reducing Valve. This pilot-operated valve is designed for heavy-duty use in industry and helps maintain a safe and efficient level of downstream pressure.

 

Product Overview

• The series is known as the HD – DR (50 Series).
• Pilot Operated Pressure Reducing Valve
• The maximum pressure the machine can reach is 315 bar.
• The maximum flow rate is 400 L/min.
• There are two types of mounting: sub-plate mounting and threaded connection.
• The pressure ranges available are 50, 100, 200 and 315 bar.

Optional: You can choose a check valve or one of four types of pressure adjustment elements.

The HD – DR (50 Series) is a high-quality hydraulic valve that helps stabilize pressure in various applications. This valve is used in construction, industry and hydraulics to maintain precise pressure, protect the rest of the system and boost its performance.

 

Types of Pressure Reducing Valves

Pressure reducing valves are sorted by how they are controlled and by the way they are used. The 50 Series is a pilot-operated HD – DR which means it offers precise and quick responses. Let’s take a look at the most common types of writing.

1. Direct-Acting Pressure Reducing Valve

Design with a smaller number of components

This type of valve is best used in situations with low flow and low pressure.

Answers come fast but are not always correct.

2. Pilot-Operated Pressure Reducing Valve (HD – DR Type)

Designing for systems that handle high pressure and high flow.

Contains a pilot valve to ensure quicker and more accurate operation.

This material is well suited for tough industrial settings.

3. Proportional Pressure Reducing Valve

Electronically controlled

Enables changes to be made instantly using data from sensors.

Servo and automated systems often use this technology.

4. Some Pressure Reducing Valves include a Check Valve (Optional in HD – DR)

Stops backflow in hydraulic systems.

Increases the security of the system.

Makes sure the flow of information is always in one direction.

 

Working Principle

The HD – DR (50 Series) uses a pilot-operated method which ensures pressure can be regulated smoothly and quickly. Here is the process:

1. Hydraulic fluid is pushed into the valve at a higher pressure.
2. A pilot valve is part of the main valve body. It detects the pressure coming from the downstream and compares it with the spring-loaded pressure level that was set.
3. If the downstream pressure is higher than the set value, the pilot valve blocks some of the flow which causes the main valve to close a little. It helps to reduce the pressure that flows downstream.
4. Pressure Re-establishment: After the pressure falls, the valve opens a little to return the pressure to the set level.
5. It helps to maintain steady and accurate outlet pressure by continuously adjusting the system.

 

Important Features and Advantages

• Pilot Operated Control – Suitable for heavy-duty use because it is highly accurate and responsive
• Mounting can be done with a sub-plate or a threaded connection, depending on the installation.
• There are 50, 100, 200 and 315 bar versions available.
• Optional Check Valve – It improves the safety of the flow and its direction.
• Four types of pressure adjustment allow for flexibility in different hydraulic systems.
• High Flow Capacity – Can handle up to 400 L/min, ideal for big systems
• Energy-Efficient – Helps to use less energy and protects the equipment.

 

Applications

The HD – DR (50 Series) Pressure Reducing Valve is best suited for:

1. Excavators, loaders and cranes are all types of construction equipment.
2. Industrial Machinery includes presses, injection molding machines and hydraulic testing benches.
3. HPUs – Pressure is managed from a centralized location
4. Material Handling Systems include forklifts and conveyor systems.
5. Metalworking and Fabrication Machines

 

Tips to Keep Your Car Performing Well

If your pressure reducing valve is maintained correctly, it will last longer and not interrupt your hydraulic system. Keep the following tips in mind:

1. Regular Inspection

Look for any damage or leaks on the outside of the tank.

Check the fasteners and the way they are connected.

Check that fluid is not escaping from the seals or joints in your vehicle.

2. Keeping the place clean is important.

Always clean the hydraulic system to avoid contamination.

Replacing the filters on a regular basis will help prevent the valve from getting clogged.

3. Monitor Performance

Keep track of the system pressure on a regular basis.

If the pressure from the valve is not steady, check or replace the valve.

4. Try operating the Pilot Valve.

Check that the pilot valve opens and closes as the pressure changes.

If you find that the game is lagging or slow, it might be time to service the machine.

5. If there is a check valve, examine its function.

Check that the check valve is successfully stopping any reverse flow in the system.

If the lens is stuck because of dirt or damage, clean or replace it.

6. Lubrication

Choose the right hydraulic oil for the system you are using.

Ensure oil levels are not below or above the recommended amounts.

7. Replace Worn Parts Whenever They Need to Be

After some time, the seals, springs and pilot components may get worn out.

Maintaining valve accuracy is possible when you use OEM parts.

 

Installation Tips

1. Mount the camera using the recommended method which is either a sub-plate or threaded attachment.
2. Check that the valve is installed so that the hydraulic flow is in the correct direction.
3. Ensure the fittings and hoses used are suitable for high pressure.
4. Make sure the fittings are tightened enough to avoid leaks.

 

What Are the Benefits of HD – DR (50 Series)?

• Reliability – Consistent performance in industrial and mobile equipment
• Customization – You can choose to add a check valve and adjust the pressure.
• Precision – Strong regulation for the best-performing systems
• Long-lasting – Ready to operate over a long period under pressure
• Flexibility – Can be used in different industries and hydraulic circuits

If you need your hydraulic system to be safe, energy-saving and to maintain a specific pressure level, the HD – DR (50 Series) Pilot Operated Pressure Reducing Valve is your choice. Because it can be mounted flexibly, set to various pressures and customized, it fits into any kind of hydraulic circuit.

The valve ensures the same good performance, no matter if you are using construction machines, industrial presses or power units.

Contact us for help from our experts, competitive pricing and the best after-sales help you can get.