Parker hydraulic directional control valves provide highperforming and reliable 4way, 3 way, 2 way valves, pilot operated and hydraulic proportional valves, mobile hydraulic control valves and many more. The pilot valve controls spool movement with the elecrical solenoids. The main control spool 2 in the main valve is held in the. In addition, we offer numerous variants, ranging from spool valves to poppet valves. A two stage valve is constructed by combining a pilot valve and a larger main stage valve into one assembly.
A guide to understanding pneumatic directional control valves part 1. Although the vast majority of directional control valves for industrial applications are 2 and 3 position, many valves used in mobile equipment come in 4position configurations to accommodate special needs. In addition to solenoid operated valves, valves are also operated mechanically by lever or cam, hydraulically or pneumatically. A 3way valve not only supplies fluid to an actuator, but allows fluid to return from it as well. These directional valves consist of the housing 1, one or two removable solenoids 2, control spool 3 and one or two return springs 4. Dsg01 series solenoid operated directional valves note. The ports connect to what in a typical model are a hydraulic pump port p, a storage tank port t, and a singleacting actuator port a. Directional control valves all world machinery supply. Vickers directional controls directional control valves.
Catalog hy142500us directional control valves technical. Heat treated rotor and poppets are spring and pressure loaded against each other to provide positive fluid control for hundreds. In directional control valves with 3 spool position, the central position is the neutral position or mid position or zero or null position. A guide to selecting a manual hydraulic directional. Operation series d101 directional valves consist of a 5chamber. Characteristics and configurations of manual directional control valves used in hydraulic systems selecting the right valve for the job. Function in the deenergized condition, control spool 2 is held in the initial position by the return spring 4.
Lc04z 4 3 4 2 directional valves functional description functional description 7542 346 5 67 tapbt type l5010 the solenoid operated valves type l 5010 provide 3 way or 4way. They control the start, stop and direction of a flow and basically comprise a housing 1, the control spool 2 and a return spring 4. The 4way function is a common type of directional control valve for both air and hydraulic circuits. Directional valves type kv with direct mechanical operation by means of a lever control the direction of the hydraulic fluid medium flow. On the right hand side you can see the basic position of a normally closed 3 2 way valve. Directional valves type kvc3210 with direct solenoid operation are used to control the direction of hydraulic fluid flow. The pilot valve, usually a dg4s4 or dg4v 3 is mounted on top of the main stage valve. Hydraulic directional control valves, 3 way, 4 way, pilot.
Directional control valves are designed and manufactured for safe operation up to 10,000 psi. They are available in 2 or 3 position and conform to nfpas d03, cetop 3 mounting patterns. Vickers air operated dg18v 3 60 directional control valves come in four basic versions. Ordering code 2 function, section 3 symbols 4 test and service devices 4 technical data 5 and 6 electrical connection 7 technical notes for the cable 7 integrated electronics 8 characteristic curves 9 to 11 unit dimensions 12 to 14 features pilot operated highresponse 4 3 directional. Figures 5 through 10 show schematic symbols for 3 way directional. A 3 way valve not only supplies fluid to an actuator, but allows fluid to return from it as well. Series d1va and d1vp directional control valves are high performance, 4 and 5chamber, direct operated, air and oil pilot controlled, 3 or 4way valves. Solenoid pilot valve, valve island discrete multipin fieldbus 14, 3 8, npt. Fluid can flow from the pump to the actuator via path pa and from the actuator to the tank via path at.
These are wet armature design solenoid valves in either 2 position or 3 position configurations. Directional control valves nd 4 electricallyoperated with socket adapter max. The control the start, stop and direction of a flow. Directional control valves the valves enable flow direction control of fluid in a hydraulic circuit and both control of the direction of movement or shutting off stopping of their appliances. Seat valve has complete hydraulic pressure compensation and negative switching. B 2 eaton solenoid operated directional valve dg4v 3 60 evlviss001e1 august 2015 b general description solenoid operated directional control valves are for directing and stopping flow at any point in a hydraulic system. These valves conform to nfpas d10, cetop 10 mounting pattern. In the example below a manually actuated valve s1 or s2 controls a double acting cylinder c1 or c2. Solenoid operated directional control valve d1vw series parkers d1vw directional control valves are high performance direct operated hydraulic valves. Panel mounted 3 way control valve power valve 2 out 3 ex 1 in 2 out 3 ex cooling air 1 in n. All ports of the 2 2, 3 2, 3 3 and 4 3way directional seated valves acc.
Detent in position 1, 2 and 3 marine version spring centered with straight through spool. Series d101 hydraulic directional control valves are high performance, solenoid controlled, pilot operated, 2 stage, 4way valves. Solenoid operated directional control valve d1vw series. Series d101 directional valves consist of a 5chamber style main body, a case hardened sliding spool, and a pilot valve. The breadth of our product portfolio includes manually operated directional control valves, hydraulically actuated directional control valves, solenoidoperated directional control valves and electrohydraulically actuated directional control valves. Numatics series 503 pneumatic valve provides increased energy efficiency, high flow in compact package, plus modular design for easy configuration. A 3position, 4way valve stops an actuator or allows it to float. Directional control valve 9 spool controls code type aside bside type code 9 9m 10 10m 9s s1 s7 s2 s5m s6 spring centered. It depends on whether a fixed or variable displacement pump is used, whether.
Directional control valves are probably the most common of all hydraulic components and are used to control the. Solenoid controlled pilot operated directional valve. Figures 85 through 810 show schematic symbols for 3way directional control valves. Goto product focused delivery times are available only for the quantities and if applicable, the preferred options listed for the product. Ordering code 2 function, section 3 symbols 4 test and service devices 4 technical data 5 and 6 electrical connection 7 technical notes for the cable 7 integrated electronics 8 characteristic curves 9 to 11 unit dimensions 12 to 14 features pilot operated highresponse 4 3 directional control valve. The 3 way directional valve block represents a directional control valve with three ports and two positions, or flow paths. They are available in 2 or 3 position styles and are manifold mounted. In the deenergized condition, spool 3 is held centered, or an offset position by return springs, 4 except detented spools. This is a very simple animated illustration on the basics of hydraulic schematic symbols.
Iso schemes of directional control valves page 2 hafnerpneumatik kramer kg, stammheimerstra. Pneumatics catalog, online pdf, as of 20170331, aventics s. Valves allow airflow into your equipment and then quickly dump exhaust air to the atmosphere without routing it back through a directional control valve to speed up the movement of equipment. The 3 2 directional spool valves are direct operated, pressure compensated cartridge valves. Directional control valves photo type series description main specifications solenoid valves. Figures 85 through 810 show schematic symbols for 3 way directional control valves. These directional valves consist of a housing 1, control spool 2, control mechanism 3, and return spring 4. A 3way spool valve can be used as a 2way valve by blocking one port. Thus a valve with 2 service ports and 2 switching positions is designated as 2 2 way valve. Directional valves controlling the flow direction and thus the direction of movement or rotation of hydraulic actuators directional seat valves or spool valves, direct operated or pilot operated. Compressed air valves directional control valves start, stop or change the direction of flow in compressed air applications.
Twoway valves turn air on and off in applications such as shop air, branch airlines, supply pressure to systems, and supply air. A valve with 2 spool position is shown and also a valve with 3 spool positions. Most manufacturers offer a variety of centerposition configurations as standard, offtheshelf items. They are available in 2 or 3 position and conform to nfpas d05, cetop 5 mounting patterns. Detent in position 1, 2, 3 and straight through spool. The designation of the directional control valve refers to the number of working ports and the number of switching positions. Poppet valves are made in 2way, 3way, and 4way configurations. Pneumatic valve directional control valve 52, 532x3. Chapter 5 schemes of directional control valves iso. Directional control valve 5 2, 5 3 2x3 2 series 503 503. Iso schemes of directional control valves hafnerpneumatik.
Additionally, in order to control the speed of th e cylinder, flow control silencers are in use. Directional valves with hand lever are optionally available as 2 or 3 position valve, and with hydraulic or pneumatic actuation only as 2 position valve with detent. These directional valves basically consist of the main valve with housing 1, main control spool 2, one or two. In this topic we are talking about how the hydraulic schematic symbol for control valve is derived. Visiodraft eice10010 dsg01 series solenoid operated. May also be used to control single acting systems rotary handle motion uses a rotary bearing.
When analyzing a system schematic, its worth thinking about how the directional control valve centers were chosen. These valves have to be completed with subplates or customer furnished manifolds to enable pipe connection. The range of enerpac high pressure hydraulic valves allows for direct pump mounting, remote mounting, manual or solenoid actuation, and inline installation, giving you flexible solutions to control your hydraulic system. Electrohydraulic type weh hydraulic type wh for subplate mounting porting pattern to iso 4401 and nfpa t3. Two stage directional valves are pilot pressure operated. The directional valves basically consist of the main valve with housing 1, the main control spool 2, one or two return springs 3. The d1vw valve conforms to d03 ng6 mounting pattern.
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