Hydraulic Valves/

Hydraulics Valves

Hydraulics valves are parts that control the flow and pressure of hydraulic fluid within a system. They allow hydraulic equipment to function properly and safely while allowing for precise control. Hydraulics valves are made up of the main casing, which is the outer enclosure that holds all the other components, a bonnet, which is a removable section of the casing, a seat, which is where the valve connects and a disc that acts as the seal that prevents leaking at the seat.

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Fulflo Specialties, Inc.
Blanchester, OH
937-783-2411
Since 1912, Fulflo has been providing "chatter free" valves that modulate to control pressure: hydraulic bypass relief valves, oilfield valves, pilot valves, pressure regulator valves & hydraulic pressure control valves, which mount in any position. Our hydraulic by-pass relief valves measure from 1/4 - 4". A pioneer in fluid power, we constantly strive to be a worldwide valve producer leader.
 
The Lee Company
Westbrook, CT
860-399-6281
For over 60 years, The Lee Company has been manufacturing high quality miniature hydraulic valves for use in aerospace hydraulic systems, oil tools and other industries worldwide. Our selection of hydraulic valves includes check valves, pressure relief valves, thermal relief valves, shuttle valves, piloting solenoid valves & more.
 
Westfield Hydraulics Inc.
Pacoima, CA
818-896-6414
Westfield Hydraulics designs and manufactures special purpose components for the aerospace industry. We offer a fully integrated custom manufacturing system. This integration permits us to provide the highest quality product. We manufacture hydraulic check and release valves, hydraulic solenoid valves, hydraulic valve actuators, thrust reverser valves and steering valves. Visit our website today!
 
Western FluiDyne
Fraser, MI
800-842-5377
Western FluiDyne manufactures hydraulic pumps, motors & valves. We carry a wide range of remanufactured pumps as well as our own FluiDyne and Veljan products. Single, double & triple pumps with many shaft options are available. We promise to serve and respect the rebuilders & resellers of North America and the global market with high quality new and remanufactured pumps, motors, valves & filters.
 
DC Hydraulics, Inc.
Canton, MI
734-416-8999
As fluid power specialists, DC Hydraulics distributes hydraulic power systems. We offer name brand hydraulic systems along with design & instrumentation. Let us help you with your next fluid power purchase. For over a decade, our fast service & response to your requests are completed within 24 hours. We pride ourselves on complete customer satisfaction in system design, build and component supply.
 
Northman Fluid Power
Carol Stream, IL
630-588-8488
Northman Fluid Power manufactures hydraulic and pressure control motors, valves, switches and pumps. Northman utilizes state of the art technologies, environmentally acceptable alternatives and strict quality processes to meet or exceed our customer's expectations of increased productivity and lowered operating costs while respecting the environment. We are a ISO 9001 certified company.
 
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Hydraulics Valves

The size of hydraulics valves can range from less than an inch to a foot long; the average valve can fit in the palm of a hand. Common materials include brass, bronze, copper, cast iron and stainless steel as well as plastics such as PVC. Basic hydraulics valves have two stations: open and closed. When closed, no fluid is able to pass through but when open, it flows freely. Directional control valves have more than the two standard connections and are able to send the stream of fluid to a specific area. Hydraulics valves are used within a fluid control system as a simple way to prevent improper levels of pressure and fluid. They are used with hydraulic tools such as water cutting machines and pressure washers. Hydraulics valves are predominately used in equipment and tools founds in industrial, manufacturing and construction applications. To reduce the cost, many valves are narrow. Sometimes a larger end is connected to a valve in order to make the valve capacity of connecting to a larger line.

Standard hydraulics valves do not require motor or electricity to operate. Basic valves are hand-operated either by rotating or flipping the handle. The handles may be circular, like in the case of an outdoor water faucet or they can resemble a coupling and have a flat rod that is pushed or pulled to control the internal mechanism that shuts off the flow. Some valves are check valves that allow the hydraulic fluid to flow only in one direction to prevent backwash or contamination. Others are designed to shut off automatically if the flow rate gets too high or to send impulses to valves further down the hydraulic line in order to provide a systematic balance of flow. Electric hydraulic valves use an electromagnetic field to operate the valve; these types of valves are used as switches or controls. Advanced systems use computers to control hydraulics valves, eliminating the need for an operator to monitor. Valves are constructed through computer controlled numeric (CNC) production machinery to minimize human error. They are either cast or forged; plastic valves are extruded or injection molded.