Manual directional control valves youli hydraulic valve. Basic fourway sliding spool directional valve construction vickers valve bodies have a precision machined bore in. Our valves are some of industrys most adaptable, with a large number of. Directional control valves are probably the most common of all hydraulic components and are used to control the starting, stopping and reversal of flow in a system. Cross hydraulics, products, hydraulics, cross, solenoid directional control valves. The function of a directional control valve is determined by the number of working ports excluding control ports and the number of spool. Direction control valves, hydraulic directional control valve.
Parker directional control valves, open center, models va20. A guide to selecting a manual hydraulic directional. For example they control the direction of motion of a hydraulic cylinder or motor. See accessories for power beyond plug or closed center conversion plug. For flows up to 30 gpm 114 lpm and working pressures up to 3,000 psig 207 bar knob or handle operation these threeway directional valves can be used in a wide variety of circuitry and system configurations. A valve is designed to control the direction of movement of a work. Directional valves are devices used to change the flow direction of fluid within a hydraulic circuit. Home products directional control valve hydraulic directional control valves youli has been cultivated in hydraulic direction control valves manufacturing for over 30 years since 1975, is one of experienced hydraulic directional valves manufacturers in taiwan. Directional control valves for hydraulic and pneumatic systems are similar in design and operation.
These valves conform to nfpas d10, cetop 10 mounting pattern. Flow forces analysis of an open center hydraulic directional. Hydraulic directional control valves hydraulic valve. Directional valves type kv with direct mechanical operation by means of a lever control the direction of the hydraulic fluid medium flow. Pressure port size list price hc52691 hcm451 1 45 lpm 12 us gpm 350 bar 5000 psi 34 uno hc52693 hcm452 2 hc52692 hcm453 3 hc52680 hcm454 4 hc52683 hcm455 5 hc63170 hcm456 6. There are two categories of the directional control valve.
Model bc directional control valve parts cross mfg. This unit is a direct acting, screw in cartridge style, spool type, hydraulic 3way directional control element, requiring remote pilot actuation. Directional control valves are generally specified using the number of ports and the number of switching positions. Youli has been cultivated in hydraulic direction control valves manufacturing for over 30 years since 1975, is one of experienced hydraulic directional valves manufacturers in taiwan our hydraulic directional control valves include pilot controlled check valves, solenoid operated direction control valves and cam operated directional valves. Various voltages are available along with sizes to get flows to 200 gpm. The 4way function is a common type of directional control valve for both air and hydraulic circuits. Our offer includes a wide selection of directional control valves with a variety of controls, suitable for many different applications. Direction control valve directional control valves. Describe the purpose of a directional control valve in a fluid power system.
Choose the optimum valve to meet your need from a large selection available. The return port of a hydraulic valve is ported through a return line to the reservoir, while the similar port of a pneumatic valve, commonly referred to as the exhaust port, is usually vented to the atmosphere. A guide to selecting a manual hydraulic directional control valve. Hydraulic directional control valves by terry bartelt. Basic check valves allow fluid to flow in one direction but prevent fluid from flowing in the opposite direction. Bulletin hy142715m1us, 2c, 802, phd parker hannifin corporation hydraulic valve division 520 ternes avenue elyria, ohio, usa 44035 tel. They typically incorporate international standard mounting and fluid flow patterns. All feature adjustable differential poppet relief and all feature a load check. Cross offers directional control valves, single and double selector valves and inline relief valves. Our markets include machine tools, power generation, metal forming, compacting and baling, materials testing, ground support and primary metals processing. The directional control line of valves are available in a wide range of port sizes and cv flow capacity. All vektorflo directional control valves are rated at 5,000 psi working pressure. There are types solenoid type rs and automatic switching 42 rha.
Hydraulic directional control valve series 15 hcv 151. Directional control valves are probably the most common of all hydraulic. Directional control valves rd5000 series 4way spool is used to control a doubleacting cylinder. Sealed and rugged execution with cushioning effect above cetop 05 size. Hydraulic directional control valves wisconline oer. Series d101vw directional control valves are 5chamber, pilot operated, solenoid controlled valves. We identify an industrial directional control valve with an iso pattern which is a series of holes on the bottom of the valve. Directional control solenoid valve pdf hydraproducts. Walvoil sdh6 38 4 bank sectional directional control valve. Direction control valve directional control valves latest. Pressure relief valves protect the system plumbing and components against pressure overloads. A valve is designed to control the direction of movement of a work cylinder or the direction of rotation of a fluid motor. Hydraulics 101 for beginners tractor supply company.
They are available in 2 or 3position styles and are manifold mounted. A directional control valve is the extend and retract control for your hydraulic cylinders. Vickers directional controls pilot operated directional. Draw the schematic symbol for a 2 position, 2 way, solenoid actuated, spring offset, nc directional control valve. Features and benefits suitable for the most demanding industrial applications with flow. Poppets make take the form of a ball, a flat plate or a cone. A guide to selecting a manual hydraulic directional control valve characteristics and configurations of manual directional control valves used in hydraulic systems selecting the right valve for the job. Define the following features of directional control valves.
These valves are generally used to control the direction of flow in a hydraulic circuit. Cross valves feature products with a long dependable service life and optimum versatility due to many standard and optional features. We specialize in daikin directional control valves also called flow control valves that securely control hydraulic fluid flow. All vektorflo directional control valves are rated at 350 bar 35 mpa working pressure. Check valves pilotoperated counterbalance valves overcenter valves cushion valves double relief valves directional control valves. They typically incorporate international standard mounting and fluid flow patterns nfpa do3iso 44011. Directional control valves without proportional control are referred to as switching valves.
Parker directional control valves, open center, models. Flow forces analysis of an open center hydraulic directional control valve sliding spool article in energy conversion and management 471. These three functions usually operate in combination. Specific examples of control valves we carry include. Directional control valves, dealers, supplier, mumbai, india. Directional control valves rd5000 series directional. Brand hydraulics directional control valve 3,000 psi. The simplest directional control valve is the 2way valve. All our valves are affordable, selected on performance and high quality brands such as parker or yuken. Series d101 hydraulic directional control valves are high performance, solenoid controlled, pilot operated, 2stage, 4way valves. Directional control valves are essentially used for distribution of energy in a fluid power system. Chief directional control valves ed series chief directional control valves ed series european design.
Rugged, durable, high performance, efficient the reason continental hydraulics products are used in some of the most challenging applications across the globe. Northman provides solenoid controlled as well as manually operated valves controlled by levers, cams, air or oil pilot. Asco numatics directional control line of valves feature higher flow in a compact valve package, commissioning capabilities, sandwich and manifold accessories and. It can be represented in general form as n p n s, where n p is the number of ports connected to the direction control valve and n s the number of switching positions in addition, the method of actuation and the return method can also be specified. Directional control valves are probably the most common of all hydraulic components and are used to control the starting. As with all fluid power components, directionalcontrol valves can be represented by standard symbols published in iso 1219. Youli has been devoting to hydraulic operated control valves over than three decades since 1975, which is an experienced and a professional manufacturer of hydraulic pressure relief valves, mainly supplies high quality directional control valve, pilot control valves, hydraulic pilot control valve operation and flow control valves. Directional control valves manage the flow path of the fluid in the system. Perhaps the simplest of all directionalcontrol valves is the check valve, a specific type of binary valve. Directional control valves,hydraulic,pneumatic hydraulic. Directional control valves for pneumatic systems the directional control line of valves are available in a wide range of port sizes and cv flow capacity. In comparison to our existing lines, both the pressure and flow of.
This allows one valve subplate to serve as the mounting platform for any of these valves. Contents description page number 12 bsp lever operated valves 1 12 bsp cam operated valves 3 12 bsp air pilot operated valves 5. Directional control valves can control the start, stop and change in direction of flow of a pressure medium. Directional control valves hydraulic components poclain hydraulics model code k 4 control spool held r ra number of spool position 2 2 3 3 5 seal type no designation nbr seals for mineral oil hl,hlp to din 51524 e fpm seals for hetg, hees, hepg to vdma 24568 and iso 15380 special requirements to be briefly specified v k o throttle mm in. Atos is a leading international manufacturer of oilhydraulic solenoid valves. They establish the path through which a fluid traverses a given circuit. Monoblock directional control valve manually operated common load check on inlet stock no. With a commitment to quality customer support and innovative engineering, continentals valves, pumps, power units and proportional products deliver what your market and.
Directional control valves perform only three functions. They also limit the output force exerted by rotary motors and cylinders. This in turn would control the movement of a work cylinder or the rotation of a fluid motor. However, they vary considerably in physical characteristics and operation. Directional control valves, hydraulic directional control. A water faucet allows flow or stops flow by manual. Only show daikin directional control valves reset filter. The directional control valves are used to control the motion of one or more consumers. Jan 09, 2018 northman provides solenoid controlled as well as manually operated valves controlled by levers, cams, air or oil pilot.
They are often associated with the control of a hydraulic actuator, such as a cylinder or motor, to select either forward, reverse or stop but. This brand hydraulics 4way, 3position directional control valve has up to 3,500 psi adjustable main relief, factory set to 3,000 psi. Bulletin hy142004b1us, 5c, 902, phd parker hannifin corporation hydraulic valve division 520 ternes avenue elyria, ohio, usa 44035 tel. In this animated activity, learners examine the operation of hydraulic directional control valves and the internal components that divert the fluid. The dsg03 50 design series solenoid operated directional valves are. Directional control valves start, stop or change the direction of flow in. Directional control valve flow control valve all world. These valves are manifold or subplate mounted, and conform to nfpas d10, cetop 10 mounting pattern. Directional control valve hydraulic valves and parts. The valves may be a poppet type, in which a piston or ball moves on and off a seat. Other designs use flat plates and poppets but the functions are the same although they may not be as robust and are more suited to pneumatics. Depending on the type of order, our electrohydraulically operated directional control valves can be equipped with a pilot choke adjustment, stroke limiter or a limit switch.
Chief directional control valves ed series directional. These valves open whenever the pressure goes beyond the set value, allowing oil to flow back into the. It provides a flow path from the pump to the cylinders and a return path from. Directional control valves are used to regulate fluid oil flow in hydraulic systems. A 3position, 4way valve stops an actuator or allows it to float. Directional control valves hydraulic archives fluid power.
Poppet valves the directional control valves so far studied are all of the type that uses a sliding piston or spool. Parts include conversion plug, dowel pin, flow diverter, handle, load check, machine screw, oring, pin kit, power beyond sleeve, seal, spool, spring, housing. Operation series d101 directional valves consist of a 5chamber. Flow is controlled by a simple pull or push of the control knob or handle. Directional control valves directional control valves. They are often associated with the control of a hydraulic actuator, such as a.
Hydraulic directional control valves buy hydraulics. Our 2000 series valves offer advanced circuit board technology inside. Introduction directional control valves as the name implies directional control valves are used to control the direction of flow in a hydraulic circuit. Rotaryspool type, in which a spool rotates about its axis. The 4we6 cetop03 directional control solenoid valves consists of a steel. A guide to selecting a manual hydraulic directional control.
Draw the schematic symbol for a 2 position, 2 way, solenoid. P40 monoblock directional control spool valves 2p40 38 directional control valve 2p40 manually or mechanically controlled hydraulic directional control valve 40 is designed for distribution and control of work flow between generator pump and executive mechanisms cylinder, hydromotor, etc. We also provide subplates for all types of directional control valves and if requested by the customer, we can meet any additional requirements. Pdf performance analysis of directional control valve.
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