Forklift Hydraulic Control Valves

Forklift Hydraulic Control Valve - The job of directional control valves is to be able to direct the fluid to the desired actuator. Usually, these control valves consist of a spool positioned within a housing created either of cast iron or steel. The spool slides to various places within the housing. Intersecting channels and grooves route the fluid based on the spool's location.

The spool has a neutral or central location that is maintained with springs. In this particular position, the supply fluid is returned to the tank or blocked. If the spool is slid to one direction, the hydraulic fluid is routed to an actuator and provides a return path from the actuator to tank. When the spool is moved to the other direction, the return and supply paths are switched. Once the spool is allowed 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 a fluid input that supplies all the valves in the stack.

So as to prevent leaking and deal with the high pressure, tolerances are maintained really tight. Usually, the spools have a clearance with the housing of less than a thousandth of an inch or 25 µm. So as to prevent jamming the valve's extremely sensitive parts and distorting the valve, the valve block would be mounted to the machine' frame by a 3-point pattern.

Solenoids, a hydraulic pilot pressure or mechanical levers can actuate or push the spool right or left. A seal enables a portion of the spool to protrude outside the housing where it is easy to get to to the actuator.

The main valve block is usually a stack of off the shelf directional control valves chosen by flow performance and capacity. Various valves are designed to be on-off, while some are designed to be proportional, like in valve position to flow rate proportional. The control valve is among the most sensitive and expensive parts of a hydraulic circuit.

Click to Download the pdf

Forklift Parts

TCM Forklift Part

TCM Forklift Parts - Forklift trucks are an important player in the material handling field of each international business. Transporting industrial goods happens each and every day on our hectic world. Originally innovated as industrial vehicles in the 1930s in the United States, lift trucks gained popularity after World War II in the 1940s. Becoming a reliable and efficient means...

More

---

Carriages

Carriages and Carriage Parts - There are 4 sizings of hook type blade carriages rated by the blade carriage hoisting capacity. Hook type blade carriages have been the same. Class I carriages are rated for loads up to 2000 lbs. The carriage bar spacing used for Class I is 13 inches. Class II carriages are rated for cargo as much...

More

---

Boom Lift Attachment

Boom Lift Attachments - Boom lifts are machinery that has a platform which could be lowered or raised to many heights, therefore making this piece of equipment an important requirement in a wide variety of professions. Offered in quite a few specific kinds such as aerial hoists, scissor platform lifts, and knuckle boom lifts, each type functions very specifically. The...

More

---

Alternator for Forklift

Forklift Alternators - A machine used to be able to change mechanical energy into electrical energy is actually known as an alternator. It can perform this function in the form of an electric current. An AC electric generator can in principal likewise be called an alternator. Then again, the word is typically used to refer to a small, rotating machine...

More

---

Parts for Narrow Aisle Forklifts

Narrow Aisle Forklift Parts - Few people at first could see the impact that container shipping will have in the shipping industry. One economist in the 1950s, namely Benjamin Chinitz of Harvard University, predicted that containerization will have greatly benefit New York, by allowing it to ship more efficiently to the southern parts of the US. He did not anticipate...

More

---

Electric Boom Lift Attachment

Electric Boom Lift Attachments - The most common description applied for electric lift trucks are the type "E" meaning the forklifts meets the lowest requirements for fire and electrical hazards. The trucks which are labeled type E are not suitable for use in hazardous places. Type "ES" lift trucks meet all the requirements of Type "E" trucks and have other...

More

---

Adjustable Boom

Adjustable Booms - An adjustable forklift boom is a useful part of equipment meant for companies who have to transport really heavy objects from one place to another. The forklift itself is a very vital piece of machinery that is basically a small truck equipped together with 2 prongs which are power operated on the front. These prongs could be...

More

---

Container Forklift Attachment

Container Forklift Attachments - Shipping containers form the basis of containerization. This is a transport system based upon a range of steel intermodal containers that are normally referred to as "shipping containers." These containers are built to specific standard dimensions that can be stacked and transported, loaded and unloaded with optimum efficiency over long distances. Shipping containers are often transported...

More

---