This site uses cookies. By continuing to browse the ConceptDraw site you are agreeing to our Use of Site Cookies.

Directional control valve

This example engineering drawing showing the hydraulic directional control valve usage with floating motor and pressure compensated pump is redesigned using the ConceptDraw PRO diagramming and vector drawing software from the Wikimedia Commons file: DCV 17.jpg.
[commons.wikimedia.org/wiki/File:DCV_17.jpg]
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
[creativecommons.org/licenses/by-sa/3.0/deed.en]
"Directional control valves are one of the most fundamental parts in hydraulic machinery as well and pneumatic machinery. They allow fluid flow into different paths from one or more sources. They usually consist of a spool inside a cylinder which is mechanically or electrically controlled. The movement of the spool restricts or permits the flow, thus it controls the fluid flow. ...
The spool (sliding type) consists of lands and grooves.The lands block oil flow through the valve body. The grooves allow oil or gas to flow around the spool and through the valve body. There are two fundamental positions of directional control valve namely normal position where valve returns on removal of actuating force and other is working position which is position of a valve when actuating force is applied. There is another class of valves with 3 or more position that can be spring centered with 2 working position and a normal position. ...
Directional control valves can be classified according to:
(1) number of ports;
(2) number of positions;
(3) actuating methods;
(4) type of spool." [Directional control valve. Wikipedia]
The fluid power equipment drawing example "Directional control valve" is included in the Mechanical Engineering solution from the Engineering area of ConceptDraw Solution Park. Read more
Hydraulic equipment schematic
Hydraulic equipment schematic, spring, variable spring, non-variable spring, reservoir, pressure compensator, hydraulic pump, four-port, flow path, four-port, crossed, flow path, flow path, floating motor, filter, electric linear, solenoid, dot, line, junction, closed path, closed port, callout, box, flow path,
"Directional control valves are one of the most fundamental parts in hydraulic machinery as well and pneumatic machinery. They allow fluid flow into different paths from one or more sources. They usually consist of a spool inside a cylinder which is mechanically or electrically controlled. The movement of the spool restricts or permits the flow, thus it controls the fluid flow." [Directional control valve. Wikipedia]
This example engineering drawing showing the directional control valve usage with fixed volume pump and hydraulic cylinder is redesigned using the ConceptDraw PRO diagramming and vector drawing software from Wikimedia Commons file: DCV 19.jpg.
[commons.wikimedia.org/wiki/File:DCV_19.jpg]
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
[creativecommons.org/licenses/by-sa/3.0/deed.en]
The fluid power equipment drawing example "Directional control valve" is included in the Mechanical Engineering solution from the Engineering area of ConceptDraw Solution Park. Read more
Hydraulic equipment schematic
Hydraulic equipment schematic, spring, variable spring, non-variable spring, reservoir, hydraulic pump, four-port, flow path, four-port, crossed, flow path, floating motor, filter, electric linear, solenoid, double-acting, magnetic cylinder, dot, line, junction, box, flow path,
"Directional control valves route the fluid to the desired actuator. They usually consist of a spool inside a cast iron or steel housing. The spool slides to different positions in the housing, and intersecting grooves and channels route the fluid based on the spool's position. The spool has a central (neutral) position maintained with springs; in this position the supply fluid is blocked, or returned to tank. Sliding the spool to one side routes the hydraulic fluid to an actuator and provides a return path from the actuator to tank. When the spool is moved to the opposite direction the supply and return paths are switched. When the spool is allowed to return to neutral (center) position the actuator fluid paths are blocked, locking it in position. Directional control valves are usually designed to be stackable, with one valve for each hydraulic cylinder, and one fluid input supplying all the valves in the stack. Tolerances are very tight in order to handle the high pressure and avoid leaking, spools typically have a clearance with the housing of less than a thousandth of an inch (25 ┬Ám). The valve block will be mounted to the machine's frame with a three point pattern to avoid distorting the valve block and jamming the valve's sensitive components. The spool position may be actuated by mechanical levers, hydraulic pilot pressure, or solenoids which push the spool left or right. A seal allows part of the spool to protrude outside the housing, where it is accessible to the actuator. The main valve block is usually a stack of off the shelf directional control valves chosen by flow capacity and performance. Some valves are designed to be proportional (flow rate proportional to valve position), while others may be simply on-off. The control valve is one of the most expensive and sensitive parts of a hydraulic circuit." [Hydraulic machinery. Wikipedia]
The Windows template "Hydraulic 4-ported 3-position valve" for the ConceptDraw PRO diagramming and vector drawing software is included in the Mechanical Engineering solution from the Engineering area of ConceptDraw Solution Park.
www.conceptdraw.com/solution-park/engineering-mechanical Read more
Hydraulic directional control valve
Hydraulic directional control valve, four-port, three-position, valve,
"Directional control valves are one of the most fundamental parts in hydraulic machinery as well and pneumatic machinery. They allow fluid flow into different paths from one or more sources. They usually consist of a spool inside a cylinder which is mechanically or electrically controlled. The movement of the spool restricts or permits the flow, thus it controls the fluid flow. ... Directional control valves can be classified according to: (1) number of ports; (2) number of positions; (3) actuating methods; (4) type of spool." [Directional control valve. Wikipedia]
The Windows template "Hydraulic 5-ported 3-position valve" for the ConceptDraw PRO diagramming and vector drawing software is included in the Mechanical Engineering solution from the Engineering area of ConceptDraw Solution Park.
www.conceptdraw.com/solution-park/engineering-mechanical Read more
Hydraulic directional control valve
Hydraulic directional control valve, five-port, three-position, valve,
"Directional control valves are one of the most fundamental parts in hydraulic machinery as well and pneumatic machinery. They allow fluid flow into different paths from one or more sources. They usually consist of a spool inside a cylinder which is mechanically or electrically controlled. The movement of the spool restricts or permits the flow, thus it controls the fluid flow. ...
While working with layouts of hydraulic machinery it is cumbersome to draw actual picture of every valve and other components.instead of pictures symbols are used for variety of components in the hydraulic system to highlight the functional aspects. symbol for directional control valve is made of number of square boxes adjacent to each other depending on the number of positions.connections to the valve are shown on these squares by capital letters.usually they are named only in their normal position and not repeated in other positions.actuation system of the valve is also designated in its symbol." [Directional control valve. Wikipedia]
The Mac template "Pneumatic 5-ported 3-position valve" for the ConceptDraw PRO diagramming and vector drawing software is included in the Mechanical Engineering solution from the Engineering area of ConceptDraw Solution Park.
www.conceptdraw.com/solution-park/engineering-mechanical Read more
Pneumatic directional control valve
Pneumatic directional control valve, five-port, three-position, valve,
"An air-operated valve is a type of power operated valve that uses air pressure against a piston or diaphragm to produce linear or circular movement to operate a valve. Types are 2-way, 3-way and 4-way. The 2 way air-operated valves can be either normally closed or normally opened." [Air-operated valve. Wikipedia]
The Windows template "Pneumatic 4-ported 3-position valve" for the ConceptDraw PRO diagramming and vector drawing software is included in the Mechanical Engineering solution from the Engineering area of ConceptDraw Solution Park.
www.conceptdraw.com/solution-park/engineering-mechanical Read more
Pneumatic directional control valve
Pneumatic directional control valve, four-port, three-position, valve,
The vector stencils library "Fluid power valves" contains 93 symbols of pre-made hydraulic and pneumatic valves, including directional control valves, flow control valves, pressure control valves, and electrohydraulic and electropneumatic valves.
"Control valves are valves used to control conditions such as flow, pressure, temperature, and liquid level by fully or partially opening or closing in response to signals received from controllers that compare a "setpoint" to a "process variable" whose value is provided by sensors that monitor changes in such conditions.
The opening or closing of control valves is usually done automatically by electrical, hydraulic or pneumatic actuators. Positioners are used to control the opening or closing of the actuator based on electric, or pneumatic signals.
A control valve consists of three main parts in which each part exist in several types and designs: Valve's actuator, Valve's positioner, Valve's body.
" [Control valves. Wikipedia]
The shapes example "Design elements - Fluid power valves" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Mechanical Engineering solution from the Engineering area of ConceptDraw Solution Park. Read more
Fluid power valve symbols
Fluid power valve symbols, two-stage, pressure relief, valve, provision, remote control, two-port, two-position, valve, three-port, two-position, valve, restrictor valve, pressure relief, sequence valve, pressure reducing, regulator, valve, one-way restrictor, valve, free flow, one direction, variable restriction, flow, non-return, valve, gate-valve, four-port, two-position, valve, four-port, three-position, valve, flow divider, valve, flow control, valvel, series flow, flow control, valve, temperature compensated, flow control, valve, bypass flow control, five-port, two-position, valve, five-port, three-position, valve, electrically operated, pressure relief, valve, coupling, disconnected, self-sealing, quick release, mechanically operated valves, coupling, disconnected, self-sealing, quick release, coupling, connected, self-sealing, quick release, mechanically operated valves, coupling, connected, self-sealing, quick release, cartridge valve,
The vector stencils library "Fluid power valves" contains 93 symbols of pre-made hydraulic and pneumatic valves, including directional control valves, flow control valves, pressure control valves, and electrohydraulic and electropneumatic valves.
Use these shapes to design fluid power diagrams in the ConceptDraw PRO diagramming and vector drawing software extended with the Mechanical Engineering solution from the Engineering area of ConceptDraw Solution Park.
www.conceptdraw.com/solution-park/engineering-mechanical Read more
2/2 valve, pneum., finite positions
2/2 valve, pneum., finite positions, two-port, two-position, valve,
2/2 valve, pneum., infinite positions
2/2 valve, pneum., infinite positions, two-port, two-position, valve,
2/2 valve, pneum., ext., fin. pos.
2/2 valve, pneum., ext., fin. pos., two-port, two-position, valve,
2/2 valve, pneum., ext., infin. pos.
2/2 valve, pneum., ext., infin. pos., two-port, two-position, valve,
2/2 valve, hydr., finite positions
2/2 valve, hydr., finite positions, two-port, two-position, valve,
2/2 valve, hydr., infinite positions
2/2 valve, hydr., infinite positions, two-port, two-position, valve,
2/2 valve, hydr., ext., fin. pos.
2/2 valve, hydr., ext., fin. pos., two-port, two-position, valve,
2/2 valve, hydr., ext., infin. pos.
2/2 valve, hydr., ext., infin. pos., two-port, two-position, valve,
3/2 valve, pneum., finite positions
3/2 valve, pneum., finite positions, three-port, two-position, valve,
3/2 valve, pneum., infinite positions
3/2 valve, pneum., infinite positions, three-port, two-position, valve,
3/2 valve, pneum., ext., fin. pos.
3/2 valve, pneum., ext., fin. pos., three-port, two-position, valve,
3/2 valve, pneum., ext., infin. pos.
3/2 valve, pneum., ext., infin. pos., three-port, two-position, valve,
3/2 valve, hydr., finite positions
3/2 valve, hydr., finite positions, three-port, two-position, valve,
3/2 valve, hydr., infinite positions
3/2 valve, hydr., infinite positions, three-port, two-position, valve,
3/2 valve, hydr., ext., fin. pos.
3/2 valve, hydr., ext., fin. pos., three-port, two-position, valve,
3/2 valve, hydr., ext., infin. pos.
3/2 valve, hydr., ext., infin. pos., three-port, two-position, valve,
4/2 valve, pneum., finite positions
4/2 valve, pneum., finite positions, four-port, two-position, valve,
4/2 valve, pneum., infinite positions
4/2 valve, pneum., infinite positions, four-port, two-position, valve,
4/2 valve, pneum., ext., fin. pos.
4/2 valve, pneum., ext., fin. pos., four-port, two-position, valve,
4/2 valve, pneum., ext., infin. pos.
4/2 valve, pneum., ext., infin. pos., four-port, two-position, valve,
4/2 valve, hydr., finite positions
4/2 valve, hydr., finite positions, four-port, two-position, valve,
4/2 valve, hydr., infinite positions
4/2 valve, hydr., infinite positions, four-port, two-position, valve,
4/2 valve, hydr., ext., fin. pos.
4/2 valve, hydr., ext., fin. pos., four-port, two-position, valve,
4/2 valve, hydr., ext., infin. pos.
4/2 valve, hydr., ext., infin. pos., four-port, two-position, valve,
5/2 valve, pneum., finite positions
5/2 valve, pneum., finite positions, five-port, two-position, valve,
5/2 valve, pneum., infinite positions
5/2 valve, pneum., infinite positions, five-port, two-position, valve,
5/2 valve, pneum., ext., fin. pos.
5/2 valve, pneum., ext., fin. pos., five-port, two-position, valve,
5/2 valve, pneum., ext., infin. pos.
5/2 valve, pneum., ext., infin. pos., five-port, two-position, valve,
5/2 valve, hydr., finite positions
5/2 valve, hydr., finite positions, five-port, two-position, valve,
5/2 valve, hydr., infinite positions
5/2 valve, hydr., infinite positions, five-port, two-position, valve,
5/2 valve, hydr., ext., fin. pos.
5/2 valve, hydr., ext., fin. pos., five-port, two-position, valve,
5/2 valve, hydr., ext., infin. pos.
5/2 valve, hydr., ext., infin. pos., five-port, two-position, valve,
4/3 valve, pneum., finite positions
4/3 valve, pneum., finite positions, four-port, three-position, valve,
4/3 valve, pneum., infinite positions
4/3 valve, pneum., infinite positions, four-port, three-position, valve,
4/3 valve, pneum., ext., fin. pos.
4/3 valve, pneum., ext., fin. pos., four-port, three-position, valve,
4/3 valve, pneum., ext., infin. pos.
4/3 valve, pneum., ext., infin. pos., four-port, three-position, valve,
4/3 valve, hydr., finite positions
4/3 valve, hydr., finite positions, four-port, three-position, valve,
4/3 valve, hydr., infinite positions
4/3 valve, hydr., infinite positions, four-port, three-position, valve,
4/3 valve, hydr., ext., fin. pos.
4/3 valve, hydr., ext., fin. pos., four-port, three-position, valve,
4/3 valve, hydr., ext., infin. pos.
4/3 valve, hydr., ext., infin. pos., four-port, three-position, valve,
5/3 valve, pneum., finite positions
5/3 valve, pneum., finite positions, five-port, three-position, valve,
5/3 valve, pneum., infinite positions
5/3 valve, pneum., infinite positions, five-port, three-position, valve,
5/3 valve, pneum., ext., fin. pos.
5/3 valve, pneum., ext., fin. pos., five-port, three-position, valve,
5/3 valve, pneum., ext., infin. pos.
5/3 valve, pneum., ext., infin. pos., five-port, three-position, valve,
5/3 valve, hydr., finite positions
5/3 valve, hydr., finite positions, five-port, three-position, valve,
5/3 valve, hydr., infinite positions
5/3 valve, hydr., infinite positions, five-port, three-position, valve,
5/3 valve, hydr., ext., fin. pos.
5/3 valve, hydr., ext., fin. pos., five-port, three-position, valve,
5/3 valve, hydr., ext., infin. pos.
5/3 valve, hydr., ext., infin. pos., five-port, three-position, valve,
Restrictor valve
Restrictor valve, restrictor valve,
Restrictor valve, adjustable
Restrictor valve, adjustable, restrictor valve,
Gate-valve, norm. open
Gate-valve, norm. open, gate-valve,
Gate-valve, norm. open, adj.
Gate-valve, norm. open, adj., gate-valve,
Gate-valve, norm. closed
Gate-valve, norm. closed, gate-valve,
Gate-valve, norm. closed, adj.
Gate-valve, norm. closed, adj., gate-valve,
One-way restrictor
One-way restrictor, one-way restrictor, valve, free flow, one direction, variable restriction, flow,
One-way restrictor, enclosed
One-way restrictor, enclosed, one-way restrictor, valve, free flow, one direction, variable restriction, flow,
Flow control, series flow
Flow control, series flow, flow control, valvel, series flow,
Flow control, temperature compensated
Flow control, temperature compensated, flow control, valve, temperature compensated,
Flow control, bypass flow
Flow control, bypass flow, flow control, valve, bypass flow control,
Flow divider
Flow divider, flow divider, valve,
Non-return, pilot controlled
Non-return, pilot controlled, non-return, valve,
Non-return, pilot contr., spring
Non-return, pilot contr., spring, non-return, valve,
Non-return, free
Non-return, free, non-return, valve,
Non-return, spring loaded
Non-return, spring loaded, non-return, valve,
Coupling (connect.), 1 valve
Coupling (connect.), 1 valve, coupling, connected, self-sealing, quick release, mechanically operated valves,
Coupling (connect.), both valves
Coupling (connect.), both valves, coupling, connected, self-sealing, quick release, mechanically operated valves,
Coupling (connect.), no valves
Coupling (connect.), no valves, coupling, connected, self-sealing, quick release,
Coupling (connect.), 1 valve, encl.
Coupling (connect.), 1 valve, encl., coupling, connected, self-sealing, quick release, mechanically operated valves,
Coupling (connect.), both valves, encl.
Coupling (connect.), both valves, encl., coupling, connected, self-sealing, quick release, mechanically operated valves,
Coupling (connect.), no valves, encl.
Coupling (connect.), no valves, encl., coupling, connected, self-sealing, quick release,
Coupling (discon.), 1 valve
Coupling (discon.), 1 valve, coupling, disconnected, self-sealing, quick release, mechanically operated valves,
Coupling (discon.), both valves
Coupling (discon.), both valves, coupling, disconnected, self-sealing, quick release, mechanically operated valves,
Coupling (discon.), no valves
Coupling (discon.), no valves, coupling, disconnected, self-sealing, quick release,
Coupling (discon.), 1 valve, encl.
Coupling (discon.), 1 valve, encl., coupling, disconnected, self-sealing, quick release, mechanically operated valves,
Coupling (discon.), both valves, encl.
Coupling (discon.), both valves, encl., coupling, disconnected, self-sealing, quick release, mechanically operated valves,
Coupling (discon.), no valves, encl.
Coupling (discon.), no valves, encl., coupling, disconnected, self-sealing, quick release,
Shuttle valve
Shuttle valve, shuttle valve,
Priority shuttle valve
Priority shuttle valve, shuttle valve, priority shuttle valve,
Quick exhaust
Quick exhaust, quick exhaust, valve,
Cartridge valve
Cartridge valve, cartridge valve,
Pressure relief
Pressure relief, pressure relief, sequence valve,
Pressure relief, drain
Pressure relief, drain, pressure relief, sequence valve,
Pressure relief, vent port
Pressure relief, vent port, pressure relief, sequence valve,
Pressure relief, drain, vent port
Pressure relief, drain, vent port, pressure relief, sequence valve,
Pressure relief, var.
Pressure relief, var., pressure relief, sequence valve,
Pressure relief, var., drain
Pressure relief, var., drain, pressure relief, sequence valve,
Pressure relief, var., vent port
Pressure relief, var., vent port, pressure relief, sequence valve,
Pressure relief, var., drain, vent port
Pressure relief, var., drain, vent port, pressure relief, sequence valve,
Pressure relief 2
Pressure relief 2, two-stage, pressure relief, valve, provision, remote control,
Pressure reducing, 1 stage
Pressure reducing, 1 stage, pressure reducing, regulator, valve,
Pressure reducing, 2 stage
Pressure reducing, 2 stage, pressure reducing, regulator, valve,
Pressure reducing, relief
Pressure reducing, relief, pressure reducing, regulator, valve,
Pressure relief (E)
Pressure relief (E), electrically operated, pressure relief, valve,

mechanical engineering, mechanical design software, mechanical drawing symbols, mechanical drawing software Mechanical Engineering

mechanical engineering, mechanical design software, mechanical drawing symbols, mechanical drawing software
This solution extends ConceptDraw PRO v.9 mechanical drawing software (or later) with samples of mechanical drawing symbols, templates and libraries of design elements, for help when drafting mechanical engineering drawings, or parts, assembly, pneumatic, Read more