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Forklift Hydraulic Control Valve

Forklift Hydraulic Control Valve - The control valve is a device that routes the fluid to the actuator. This device will include steel or cast iron spool that is located in a housing. The spool slides to various locations within the housing. Intersecting channels and grooves route the fluid based on the spool's position.

The spool has a neutral or central position which is maintained with springs. In this particular position, the supply fluid is blocked or returned to the tank. If the spool is slid to one direction, the hydraulic fluid is directed to an actuator and provides a return path from the actuator to tank. When the spool is moved to the other direction, the supply and return paths are switched. Once the spool is enabled to return to the neutral or center place, the actuator fluid paths become blocked, locking it into position.

The directional control is typically made to be stackable. They normally have a valve per hydraulic cylinder and one fluid input which supplies all the valves within the stack.

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

A hydraulic pilot pressure, mechanical levers, or solenoids might actuate or push the spool left or right. A seal allows a part of the spool to stick out the housing where it is accessible to the actuator.

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

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Forklift Parts

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    Komatsu Forklift Parts - Komatsu Forklift U.S.A. Inc., an affiliate of the Komatsu Ltd. family, has an affirmative reputation for building robust and reliable forklifts. They are recognized worldwide as a corporation who has a proud heritage and ...
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    Truss Jib - Truss jib's can be used to pick up, move and position trusses. The additional part is designed to function as an extended jib additional part along with a triangular or pyramid shaped frame. Typically, truss jibs are mounted on ...
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  • Carton Clamp Attachment
    Carton Clamp Attachment - One of the more handy attachments for the lift truck is the Carton Clamp. It is meant for handling various things not secured on a pallet like furniture, appliances, frozen cartons or canned goods. Large rubber-faced ...
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  • Attachment for Reach Truck
    Attachment for Reach Trucks - Reach Trucks are industrialized equipment used for loading and storage in certain organizations that maintain storage of cargo to finished merchandise on a pallet which are then placed into high shelving units. This ...
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  • Cascade Clamp
    Cascade Clamps - Cascade Manufacturing Company was established in Portland, Oregon in the year 1943. They started out as a small machine shop at first hiring 4 individuals. Product sales for their initial year of operation totaled $60,000. The ...
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