4WRE(E) Series Proportional Directional Hydraulic Valve

The 4WRE(E) series proportional directional hydraulic valve is a cutting-edge hydraulic component designed to deliver precise control and exceptional performance in hydraulic systems. This valve utilizes advanced proportional control technology to ensure accurate flow regulation and seamless directional changes.

The 4WRE(E) series proportional directional hydraulic valve empowers hydraulic systems with precise flow control, versatile directional changes, and energy efficiency. Its proportional control technology enables accurate and responsive flow adjustment, while the high flow capacity ensures reliable performance even in demanding applications. By following the recommended usage methods and maintenance guidelines, you can maximize the benefits and longevity of the 4WRE(E) series valve, elevating your hydraulic system to new levels of precision and performance. Upgrade your hydraulic setup today and experience the power of the 4WRE(E) series proportional directional hydraulic valve.

4WRE(E) Series Proportional Directional Hydraulic Valve Key Characteristics:

1. Proportional Control Technology:
   • The 4WRE(E) series valve features advanced proportional control technology, allowing for precise and proportional flow adjustment according to control signals.
   • This feature enables accurate and responsive control, resulting in improved system performance and efficiency.
2. Versatile Directional Control:
   • With its proportional directional control capability, this valve offers versatile control over hydraulic fluid direction.
   • It allows for seamless activation and deactivation of hydraulic components such as cylinders, motors, and actuators in different directions, enhancing system flexibility and productivity.
3. High Flow Capacity:
   • The 4WRE(E) series valve is designed to handle high flow rates, making it suitable for applications requiring substantial hydraulic power.
   • Its robust construction ensures reliable performance even under demanding conditions, providing consistent and efficient flow control.
4. Energy Efficiency:
   • By employing advanced flow control mechanisms, this valve minimizes pressure drops and optimizes energy usage.
   • It helps reduce energy consumption, resulting in cost savings and environmental benefits.

4WRE(E) Series Proportional Directional Hydraulic Valve Parameter:

4WRE(E) Series Proportional Directional Hydraulic Valve Advantages:

• Direct-acting proportional directional valve, used to control the flow and direction of liquid flow
• Panel type installation
• The proportional solenoid actuates the valve core through the threaded connection, and the coil can be removed separately
• Spool position feedback
• Optional with built-in amplifier, 4WRAE…L2X type input can be A1 or F1
• Supporting supply of external amplifier

Usage Method Of 4WRE(E) Series Proportional Directional Hydraulic Valve:

• System Evaluation:
  • Evaluate your hydraulic system and identify the specific flow and directional control requirements.
  • Determine if the 4WRE(E) series valve is suitable based on its flow capacity, pressure rating, and compatibility with your system.
• Valve Selection:
  • Select the appropriate variant of the 4WRE(E) series valve based on your system parameters, flow requirements, and directional control needs.
  • Consider factors such as maximum flow rate, pressure rating, response time, and operational conditions.
• Installation:
  • Follow the manufacturer’s installation instructions carefully, ensuring proper alignment and secure mounting of the valve.
  • Make leak-free connections and ensure correct flow direction alignment to guarantee optimal performance.
• Control Signal Connection:
  • Connect the control signal wires of the valve to a suitable control device, such as a proportional amplifier or electronic control unit.
  • Ensure proper wiring and compatibility between the valve and the control device for accurate and responsive control.

How To Adjust Valves With Hydraulic Lifters?

Adjusting valve lash on hydraulic lifters is a crucial maintenance task to ensure proper engine performance and prevent issues such as noisy valves or reduced power. Here’s a step-by-step guide on how to adjust valve lash on hydraulic lifters:

1. Preparation:
   • Ensure the engine is off and cool before starting the adjustment process.
   • Familiarize yourself with the engine’s firing order and the specific valve lash specifications provided by the manufacturer for your engine model.
2. Identify the Correct Cylinder:
   • Locate the firing position of the engine by referring to the engine’s firing order diagram.
   • Identify the cylinder that corresponds to the specific valve you want to adjust.
3. Position the Cylinder:
   • Rotate the engine crankshaft manually using a socket wrench or the engine’s built-in turning mechanism.
   • Position the cylinder you want to adjust at the top dead center (TDC) on the compression stroke. You can do this by aligning the timing marks on the crankshaft pulley or using a piston stop tool.
4. Loosen the Rocker Arm:
   • Locate the rocker arm on the specific valve you want to adjust.
   • Loosen the rocker arm nut or adjuster screw using an appropriate wrench or socket.
5. Adjust the Valve Lash:
   • With the rocker arm loose, you can now adjust the valve lash. The valve lash is the clearance between the rocker arm and the valve stem.
   • Use a feeler gauge to measure the existing valve lash. Insert the appropriate thickness gauge between the rocker arm and the valve stem.
   • If the clearance is too tight, meaning the feeler gauge does not fit or has excessive resistance, you need to increase the valve lash. If the clearance is too loose, meaning the feeler gauge slides in too easily, you need to decrease the valve lash.
   • To adjust the valve lash, tighten or loosen the rocker arm nut or adjuster screw accordingly. Refer to the manufacturer’s specifications for the recommended amount of adjustment to be made.
6. Recheck the Valve Lash:
   • After making the adjustment, recheck the valve lash using the feeler gauge to ensure it falls within the recommended specifications.
   • Repeat the adjustment process if necessary until the correct valve lash is achieved.
7. Repeat for Other Cylinders:
   • Proceed to the next cylinder in the firing order and repeat steps 4 to 6 for each cylinder you want to adjust.
   • Remember to rotate the crankshaft and position each cylinder at TDC on the compression stroke before adjusting its valve lash.
8. Secure the Rocker Arm:
   • Once the valve lash is properly adjusted for each cylinder, tighten the rocker arm nut or adjuster screw to the manufacturer’s recommended torque specification.
   • Double-check that the valve lash remains within the specified range after tightening.
9. Final Checks:
   • Rotate the engine crankshaft a few times to ensure smooth rotation and check for any unusual noises or resistance.
   • Start the engine and listen for any abnormal valve noises. If you hear excessive tapping or knocking, recheck the valve lash adjustment.

Capability & Capacity Of Factory:

(1) Assembly

We have a first-class independent research and development assembly platform. The hydraulic cylinder production workshop has four semi-automatic lifting cylinder assembly lines and one automatic tilt cylinder assembly line, with a designed annual production capacity of 1 million pieces. The special cylinder workshop is equipped with various specifications of a semi-automatic cleaning assembly system with a designed annual production capacity of 200,000 and equipped with famous CNC machining equipment, a machining center, a high-precision cylinder processing special equipment, a robot welding machine, an automatic cleaning machine, automatic cylinder assembly machine, and automatic painting production line. Existing critical equipment of more than 300 sets (sets). The optimal allocation and efficient use of equipment resources ensure the accuracy requirements of products and meet the high-quality needs of products.

(2) Machining

The machining shop is equipped with a customized inclined rail turning center, machining center, high-speed honing machine, welding robot, and other related equipment, which can handle the processing of cylinder tubes with a maximum inner diameter of 400mm and a maximum length of 6 meters.

(3) Welding

(4) Painting & coating

With small and medium-sized cylinder automatic water-based paint coating lines, to achieve automatic robot loading and unloading and automatic spraying, the design capacity of 4000 pieces per shift;
We also have a semi-automatic paint production line for large cylinders powered by a power chain, with 60 cases per shift design capacity.

(5) Testing

We have first-class inspection facilities and test beds to ensure that the performance of the cylinder meets the requirements.

We are one of the best hydraulic cylinder manufacturers. We can offer comprehensive hydraulic cylinders. We also provide corresponding agricultural gearboxes. We have exported our products to clients worldwide and earned a good reputation because of our superior product quality and after-sales service. We welcome customers at home and abroad to contact us to negotiate business, exchange information, and cooperate with us!