High Pressure Directional Control Valve Walvoil SD8-4 For Telescopic Boom Fork Lifts

high pressure directional control valve Walvoil SD8-4 for Telescopic boom fork lifts

Application :

Cranes, Telescopic boom fork lifts, Back-hoe Excavators and Compactors.

Forklift Hydraulic Control Valve - The function of directional control valves is to be able to direct the fluid to the desired actuator. Generally, these control valves include a spool located in a housing made either of cast iron or steel. The spool slides to different positions within the housing. Intersecting grooves and channels direct the fluid based on the spool's position.

The spool is centrally located, help in place with springs. In this particular position, the supply fluid could be blocked and returned to the tank. When the spool is slid to a side, the hydraulic fluid is directed to an actuator and provides a return path from the actuator to tank. When the spool is transferred to the opposite direction, the supply and return paths are switched. Once the spool is allowed to return to the center or neutral location, the actuator fluid paths become blocked, locking it into position.

The directional control is usually made to be stackable. They generally have a valve for every hydraulic cylinder and a fluid input which supplies all the valves in the stack.

Tolerances are maintained really tightly, to be able to tackle the higher pressures and to be able to prevent leaking. The spools will often have a clearance inside the housing no less than 25 µm or a thousandth of an inch. To be able to prevent jamming the valve's extremely sensitive parts and distorting the valve, the valve block will be mounted to the machine' frame with a 3-point pattern.

The position of the spool could be actuated by hydraulic pilot pressure, mechanical levers, or solenoids that push the spool right or left. A seal enables a part of the spool to protrude outside the housing where it is easy to get to to the actuator.

The main valve block controls the stack of directional control valves by flow performance and capacity. Some of these valves are designed to be proportional, like a proportional flow rate to the valve position, while other valves are designed to be on-off. The control valve is among the most costly and sensitive components of a hydraulic circuit.

Shijiazhuang Hanjiu Technology Co.,ltd. is a professional manufacturer of industrial hydraulic components, located in China - Hebei City. Since 1995, Hanjiu focused on the development and production of full series of hydraulic components, orbit motors, steering orbitrols, directional control valves.

Our products include: GEROLER and GEROTOR motors, hydraulic steering units, directional control valves. More than 50 series, 2000 types. Personalized products and services to provide customers with a significant advantage. Due to the high quality of our products and reliable performance, they are widely used in mobile, industrial, fluid power, dynamic, agricultural, construction, marine, automation, transport, sanitary, etc.

Hanjiu Technology brings together the world's top professional talent and technology, has a highly qualified international personnel. Set from software development to hardware design, system testing, technical services are completed by professional and technical personnel. We have R & D base in Hebei, well-known institutions of higher learning and research institutions at home and abroad, work closely with national patent applications for 63, a number of the core technological achievements and technical indicators at the international advanced level.

To ensure the quality and stability of the machine, we use the most advanced production and testing equipment to check the quality and performance of our hydraulic motors and steering units and valves in each production step to ensure our hydraulic components perfect quality and stable performance.

We provide customers with affordable, high-quality hydraulic components. In order to achieve the advantages of Asia, the full benefit in terms of quality and cost, procurement of key machine from Germany, and the production and manufacturing in China. We have the best supply chain in China and parts manufacturers, and a solid record of quality and innovation, to prove that our 20+-year performance of the hydraulic components

Quality product performance and good reputation, our products are not only successful sales in China, and have been exported to more than 120 countries and regions in the world, including: Germany, Japan, Italy, Spain, Poland, Russia, Belarus, South Korea, Turkey, Egypt, Brazil, Argentina, Chile, India, Australia, the United Arab Emirates, Saudi Arabia, USA, Mexico and other countries, the products are subject to a great welcome and praise.

Our goal is simple: to sell the best hydraulic motors, steering units, valves, components at the best prices, and provides industry-leading customer service. We personally get to know each of our customers, and we know how to discover the most valuable part of our business is Perfect Hydraulics, to help others achieve their goals.

For more detailed information on our hydraulic components, please do not hesitate to contact us! We welcome your inquiries, and look forward to working with you.