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Mechanical Drawing Symbols

Mechanical Drawings are the special type of technical diagrams that visualize the structure of complex systems and illustrate the information about ventilation, heating, air conditioning, i.e. HVAC systems. These drawings are created on the base of floor plans and reflected ceiling plans, and then become an obligatory part of construction project which is needed directly for construction a building and for receiving a permit on it. Mechanical drawings and diagrams help effectively represent construction, technical and engineering solutions, and also schematics of different mechanical equipment. ConceptDraw DIAGRAM ector drawing software enhanced with Mechanical Engineering solution from Engineering area of ConceptDraw Solution Park provides wide set of effective drawing tools, predesigned mechanical drawing symbols, templates, samples and examples. Use of standardized and recognized mechanical vector symbols helps you design understandable mechanical drawings, diagrams and mechanical engineering schematics.

Process Flow Chart

A Process Flow Chart is a type of flowchart which is mostly used in industrial, chemical and process engineering for illustrating high-level processes, major plant processes and not shows minor details. ConceptDraw DIAGRAM diagramming and vector drawing software extended with Flowcharts Solution from the "Diagrams" Area of ConceptDraw Solution Park is the best way to create Process Flow Chart and other types of flowcharts.
The vector stencils library "Valves" contains 91 symbols of valves. Use it for drawing plumbing and piping plans, schematic diagrams and blueprints of industrial piping systems; process, vacuum, and fluids piping; hydraulics piping; air and gas piping; materials distribution; and liquid transfer systems in the ConceptDraw PRO diagramming and vector drawing software extended with the Plumbing and Piping Plans solution from the Building Plans area of ConceptDraw Solution Park.
In-line valve
In-line valve, in-line valve, valve,
3-way valve
3-way valve, in-line valve, valve,
4-way valve
4-way valve, in-line valve, valve,
Screw-down valve
Screw-down valve, screw-down valve, lock-shield valve, reel valve, valve, stop cock,
Lock-shield valve
Lock-shield valve, screw-down valve, lock-shield valve, reel valve, valve,
Reel valve
Reel valve, screw-down valve, lock-shield valve, reel valve, valve,
Relief valve
Relief valve, relief valve, valve,
Relief valve 2
Relief valve 2, relief valve, valve,
Relief valve 3
Relief valve 3, relief valve, valve,
Relief valve 4
Relief valve 4, relief valve, valve,
Angle valve
Angle valve, angle valve, valve,
Angle valve 2
Angle valve 2, angle valve, valve,
Angle valve 3
Angle valve 3, angle valve, valve,
Angle valve 4
Angle valve 4, angle valve, valve,
Check valve
Check valve, check valve, valve,
Check valve 2
Check valve 2, check valve, valve,
Screwdown valve
Screwdown valve, check valve, valve,
Float operated valve
Float operated valve, float operated valve, valve,
Float operated valve 2
Float operated valve 2, float operated valve, valve,
Flanged valve
Flanged valve, flanged valve, valve,
Flanged valve 2
Flanged valve 2, flanged valve, valve,
Butterfly valve
Butterfly valve, butterfly valve, valve,
Butterfly valve 2
Butterfly valve 2, butterfly valve, valve,
Globe valve
Globe valve, globe valve, valve,
Globe valve 2
Globe valve 2, globe valve, valve,
Globe valve 3
Globe valve 3, globe valve, valve,
Needle valve
Needle valve, needle valve, valve,
Needle valve 2
Needle valve 2, needle valve, valve,
Needle valve 3
Needle valve 3, needle valve, valve,
Needle valve 4
Needle valve 4, needle valve, valve,
Diaphragm valve
Diaphragm valve, diaphragm valve, valve,
Diaphragm valve 2
Diaphragm valve 2, diaphragm valve, valve,
Diaphragm valve 3
Diaphragm valve 3, diaphragm valve, valve,
Wedge gate valve
Wedge gate valve, wedge gate valve, wedge valve, valve,
Parallel side valve
Parallel side valve, parallel slide valve, parallel valve, valve,
Gate valve
Gate valve, gate valve, valve,
Ball valve
Ball valve, ball valve, valve,
Ball valve 2
Ball valve 2, ball valve, valve,
Ball valve 3
Ball valve 3, ball valve, valve,
Powered control valve
Powered control valve, powered valve, valve,
Powered control valve 2
Powered control valve 2, powered valve, valve,
Powered control valve 3
Powered control valve 3, powered valve, valve,
Relief angle valve, pressure
Relief angle valve, pressure, relief angle valve, relief valve, angle valve, valve, pressure, vacuum,
Relief angle valve, vacuum
Relief angle valve, vacuum, relief angle valve, relief valve, angle valve, valve, pressure, vacuum,
Reducing valve
Reducing valve, reducing valve, valve,
Reducing valve 2
Reducing valve 2, reducing valve, valve,
Plug valve
Plug valve, plug valve, valve,
Plug valve 2
Plug valve 2,
Plug valve, straight through
Plug valve, straight through,
3-way plug valve
3-way plug valve, plug valve, valve,
Plug valve, T-port
Plug valve, T-port,
Plug valve, L-port
Plug valve, L-port,
3-way plug valve
3-way plug valve, 3-way plug valve, plug valve, valve,
3-way plug valve 2
3-way plug valve 2, 3-way plug valve, plug valve, valve,
3-way plug valve 3
3-way plug valve 3, 3-way plug valve, plug valve, valve,
3-way plug valve, T-port
3-way plug valve, T-port, 3-way plug valve, plug valve, valve,
3-way plug valve, L-port
3-way plug valve, L-port, 3-way plug valve, plug valve, valve,
Mixing valve
Mixing valve, mixing valve, valve,
Characterized port valve
Characterized port valve, characterized port valve, valve,
Manual isolation
Manual isolation, manual isolation,
Power signal
Power signal, power signal,
Statically loaded
Statically loaded, statically loaded, actuating method,
Spring loaded
Spring loaded, spring loaded, actuating method,
Spring loaded 2
Spring loaded 2, spring loaded, actuating method,
Remote control
Remote control, remotely controlled, actuating method,
Diaphragm
Diaphragm, diaphragm, actuating method,
Diaphragm, positioner
Diaphragm, positioner, diaphragm, actuating method,
Chain operated
Chain operated, chain operated, actuating method,
Gear operated
Gear operated, gear operated, actuating method,
Solenoid
Solenoid, solenoid,
Weight loaded
Weight loaded, weight loaded, actuating method,
Weight loaded 2
Weight loaded 2, weight loaded, actuating method,
Weight loaded 3
Weight loaded 3, weight loaded, actuating method,
Float operated
Float operated, float operated, actuating method,
Float operated 2
Float operated 2, float operated, actuating method,
Dash-pot
Dash-pot, dash-pot,
Dash-pot 2
Dash-pot 2, dash-pot,
Piston
Piston, piston,
Quick opening
Quick opening, quick, open, close, opening, closing,
Quick opening 2
Quick opening 2, quick, open, close, opening, closing,
Quick closing
Quick closing, quick, open, close, opening, closing,
Quick closing 2
Quick closing 2, quick, open, close, opening, closing,
Connecting unit
Connecting unit, connecting unit,
Connecting unit 2
Connecting unit 2, connecting unit,
Connecting unit 3
Connecting unit 3, connecting unit,
Motor element
Motor element, motor element,
Motor element, opens on failure
Motor element, opens on failure, motor element,
Motor element, closes on failure
Motor element, closes on failure, motor element,
Motor element, retains position on fail
Motor element, retains position on fail, motor element,
Motor element, safe direction
Motor element, safe direction, motor element,
Regulating
Regulating, regulating, method of control,

Interior Design. Piping Plan — Design Elements

The pipe laying and setting the plumbing system at new apartment or home, or replacing the worn plumbing begins from the choice of materials, sizes of pipes and creation the plan. When developing a piping system, the engineer should take into account many aspects, such as advantages and disadvantages of different pipes materials, the temperature changes (freezing or thermal expansion) that effect on pipes. The most commonly used are steel pipes which have passed the test of time, but they are difficult for assembling and prone to corrosion, plastic (polypropylene) pipes that are characterized by low weight and price, ease of installation and durability, and also PEX-AL-PEX pipes. Numerous libraries with ready-to-use design elements of pipes, valves and other plumbing and piping equipment included to Plumbing and Piping Plans solution for ConceptDraw DIAGRAM help easy design Piping and Plumbing interior design plans, blueprints, schematic diagrams, technical drawings of waste water disposal systems, hot and cold water supply systems.
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.
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,

Technical Drawing Software

Technical drawing or draft is a form of specialized graphic communication, exchange of ideas in industry and engineering. It is a visual representation of object with indication of dimensions and used material, constructed with maintaining the proportions between its parts. Technical drawings are constructed by architects, technologists, engineers, designers, drafters, and other technical professionals according to defined rules, specifications, internationally accepted standards and standardized notations allowing to make unambiguous, clear and understandable technical drawings. ConceptDraw DIAGRAM extended with Electrical Engineering solution, Mechanical Engineering solution, Chemical and Process Engineering solution from Industrial Engineering Area of ConceptDraw Solution Park is ideal technical drawing software. Its powerful drawing tools, predesigned vector objects, templates, samples are helpful for creation all kinds of Technical Drawings and Technical Diagrams, Electrical and Mechanical Schematics, Circuit and Wiring Diagrams, Structural Drawings, and many other.
The vector stencils library "Valves and fittings" contains 104 symbols of valve components.
Use these icons for drawing industrial piping systems; process, vacuum, and fluids piping; hydraulics piping; air and gas piping; materials distribution; and liquid transfer systems in the ConceptDraw PRO software extended with the Chemical and Process Engineering solution from the Chemical and Process Engineering area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ engineering-chemical-process
Electrically bonded
Electrically bonded, electrically bonded,
Bursting disc
Bursting disc, bursting disc,
Flame arrester
Flame arrester, flame arrester,
Strainer
Strainer, strainer,
Separator
Separator, separator,
Exhaust silencer
Exhaust silencer, exhaust silencer,
Bell mouth
Bell mouth, bell mouth,
Exhaust head
Exhaust head, exhaust head,
Hydrant
Hydrant, hydrant,
Drain silencer
Drain silencer, drain silencer,
Liquid seal open/closed
Liquid seal open/closed, liquid seal,
Y strainer
Y strainer, Y strainer,
Gate valve
Gate valve, gate valve,
Globe valve
Globe valve, globe valve,
Globe valve 2
Globe valve 2, gate valve,
Globe valve 3
Globe valve 3, gate valve,
Screw-down valve
Screw-down valve, screw-down valve,
Lock-shield valve
Lock-shield valve, lock-shield valve,
Reel valve
Reel valve, reel valve,
Check valve
Check valve, check valve,
Check valve 2
Check valve 2, check valve,
Check valve 3
Check valve 3, check valve,
Screw-down check valve
Screw-down check valve, screw-down check valve,
Stop check valve
Stop check valve, stop check valve,
Diaphragm valve
Diaphragm valve, diaphragm valve,
Diaphragm valve 2
Diaphragm valve 2, diaphragm valve,
Diaphragm valve 3
Diaphragm valve 3, diaphragm valve,
Powered valve
Powered valve, powered valve,
Powered valve 2
Powered valve 2, powered valve,
Powered valve 3
Powered valve 3, powered valve,
Needle valve
Needle valve, needle valve,
Needle valve 2
Needle valve 2, needle valve,
Needle valve 3
Needle valve 3, needle valve,
Relief valve
Relief valve, relief valve,
Relief valve 2
Relief valve 2, relief valve,
Relief valve 3
Relief valve 3, relief valve,
Angle valve
Angle valve, angle valve,
Angle valve 2
Angle valve 2, angle valve,
Angle valve 3
Angle valve 3, angle valve,
Angle valve 4
Angle valve 4, angle valve,
Float operated valve
Float operated valve, float operated valve,
Float operated valve 2
Float operated valve 2, float operated valve,
Flanged valve
Flanged valve, flanged valve,
Butterfly valve
Butterfly valve, butterfly valve,
Butterfly valve 2
Butterfly valve 2, butterfly valve,
Wedge gate valve
Wedge gate valve, wedge gate valve,
Parallel slide valve
Parallel slide valve, parallel slide valve,
Ball valve
Ball valve,
Ball valve 2
Ball valve 2, ball valve,
Ball valve 3
Ball valve 3, ball valve,
Relief angle valve vacuum
Relief angle valve vacuum, relief angle valve vacuum,
Relief angle valve pressure
Relief angle valve pressure, relief angle valve pressure,
Reducing valve
Reducing valve, reducing valve,
Reducing valve 2
Reducing valve 2, reducing valve,
Plug valve 3 way
Plug valve 3 way, plug valve 3 way,
Plug valve L point
Plug valve L point, plug valve L point,
Plug valve 2
Plug valve 2, plug valve,
Plug valve
Plug valve, plug valve,
Plug valve straight through
Plug valve straight through, plug valve straight through,
Plug valve T point
Plug valve T point, plug valve T point,
3-way plug valve
3-way plug valve, 3-way plug valve,
3-way plug valve 2
3-way plug valve 2, 3-way plug valve,
3-way plug valve 3
3-way plug valve 3, 3-way plug valve,
Mixing valve
Mixing valve,
Valve Manifold
Valve Manifold, valve manifold,
Characterized port valve
Characterized port valve, characterized port valve,
Reducer
Reducer, reducer,
Reducer 2
Reducer 2, reducer,
General joint
General joint, joint,
Butt weld
Butt weld, butt weld,
Butt weld 2
Butt weld 2, butt weld,
Butt weld 3
Butt weld 3,
Butt weld 4
Butt weld 4, butt weld,
Flanged/ bolted
Flanged/ bolted, flanged joint, bolted joint,
Soldered / solvent
Soldered / solvent,
Soldered / solvent 2
Soldered / solvent 2, soldered, solvent,
Screwed joint
Screwed joint, screwed joint,
Screwed joint 2
Screwed joint 2, screwed joint,
Screwed joint 3
Screwed joint 3, screwed joint,
Socket and spigot
Socket and spigot, socket,  spigot,
Socket and spigot 2
Socket and spigot 2, socket, spigot,
Socket and spigot 3
Socket and spigot 3, socket, spigot,
Sleeve
Sleeve, sleeve joint,
Sleeve 2
Sleeve 2,
Screwed sleeve
Screwed sleeve, screwed sleeve,
Screwed sleeve 2
Screwed sleeve 2,
Socket weld
Socket weld,
Socket weld 2
Socket weld 2, socket weld,
Swivel joint
Swivel joint, swivel joint,
Swivel joint 2
Swivel joint 2, swivel joint,
Swivel joint 3
Swivel joint 3, swivel joint,
End cap
End cap, end cap,
End cap butt welded
End cap butt welded, end cap butt welded,
End cap screwed
End cap screwed, end cap screwed,
End cap socket and spigot
End cap socket and spigot, end cap socket and spigot,
End cap fillet welded
End cap fillet welded, end cap fillet welded,
End cap screwed and plugged
End cap screwed and plugged, end cap	screwed and plugged,
End cap quick release
End cap quick release, end cap quick release,
End cap flanged and bolted
End cap flanged and bolted, end cap flanged and bolted,
End cap flanged and bolted 2
End cap flanged and bolted 2, end cap flanged and bolted,
Electrically insulated
Electrically insulated, electrically insulated,
Tundish
Tundish, tundish,
Syphon drain
Syphon drain,
Open vent
Open vent, open vent,
The vector stencils library "Valves" contains 91 symbols of valves. Use it for drawing plumbing and piping plans, schematic diagrams and blueprints of industrial piping systems; process, vacuum, and fluids piping; hydraulics piping; air and gas piping; materials distribution; and liquid transfer systems in the ConceptDraw PRO diagramming and vector drawing software extended with the Plumbing and Piping Plans solution from the Building Plans area of ConceptDraw Solution Park.
In-line valve
In-line valve, in-line valve, valve,
3-way valve
3-way valve, in-line valve, valve,
4-way valve
4-way valve, in-line valve, valve,
Screw-down valve
Screw-down valve, screw-down valve, lock-shield valve, reel valve, valve, stop cock,
Lock-shield valve
Lock-shield valve, screw-down valve, lock-shield valve, reel valve, valve,
Reel valve
Reel valve, screw-down valve, lock-shield valve, reel valve, valve,
Relief valve
Relief valve, relief valve, valve,
Relief valve 2
Relief valve 2, relief valve, valve,
Relief valve 3
Relief valve 3, relief valve, valve,
Relief valve 4
Relief valve 4, relief valve, valve,
Angle valve
Angle valve, angle valve, valve,
Angle valve 2
Angle valve 2, angle valve, valve,
Angle valve 3
Angle valve 3, angle valve, valve,
Angle valve 4
Angle valve 4, angle valve, valve,
Check valve
Check valve, check valve, valve,
Check valve 2
Check valve 2, check valve, valve,
Screwdown valve
Screwdown valve, check valve, valve,
Float operated valve
Float operated valve, float operated valve, valve,
Float operated valve 2
Float operated valve 2, float operated valve, valve,
Flanged valve
Flanged valve, flanged valve, valve,
Flanged valve 2
Flanged valve 2, flanged valve, valve,
Butterfly valve
Butterfly valve, butterfly valve, valve,
Butterfly valve 2
Butterfly valve 2, butterfly valve, valve,
Globe valve
Globe valve, globe valve, valve,
Globe valve 2
Globe valve 2, globe valve, valve,
Globe valve 3
Globe valve 3, globe valve, valve,
Needle valve
Needle valve, needle valve, valve,
Needle valve 2
Needle valve 2, needle valve, valve,
Needle valve 3
Needle valve 3, needle valve, valve,
Needle valve 4
Needle valve 4, needle valve, valve,
Diaphragm valve
Diaphragm valve, diaphragm valve, valve,
Diaphragm valve 2
Diaphragm valve 2, diaphragm valve, valve,
Diaphragm valve 3
Diaphragm valve 3, diaphragm valve, valve,
Wedge gate valve
Wedge gate valve, wedge gate valve, wedge valve, valve,
Parallel side valve
Parallel side valve, parallel slide valve, parallel valve, valve,
Gate valve
Gate valve, gate valve, valve,
Ball valve
Ball valve, ball valve, valve,
Ball valve 2
Ball valve 2, ball valve, valve,
Ball valve 3
Ball valve 3, ball valve, valve,
Powered control valve
Powered control valve, powered valve, valve,
Powered control valve 2
Powered control valve 2, powered valve, valve,
Powered control valve 3
Powered control valve 3, powered valve, valve,
Relief angle valve, pressure
Relief angle valve, pressure, relief angle valve, relief valve, angle valve, valve, pressure, vacuum,
Relief angle valve, vacuum
Relief angle valve, vacuum, relief angle valve, relief valve, angle valve, valve, pressure, vacuum,
Reducing valve
Reducing valve, reducing valve, valve,
Reducing valve 2
Reducing valve 2, reducing valve, valve,
Plug valve
Plug valve, plug valve, valve,
Plug valve 2
Plug valve 2,
Plug valve, straight through
Plug valve, straight through,
3-way plug valve
3-way plug valve, plug valve, valve,
Plug valve, T-port
Plug valve, T-port,
Plug valve, L-port
Plug valve, L-port,
3-way plug valve
3-way plug valve, 3-way plug valve, plug valve, valve,
3-way plug valve 2
3-way plug valve 2, 3-way plug valve, plug valve, valve,
3-way plug valve 3
3-way plug valve 3, 3-way plug valve, plug valve, valve,
3-way plug valve, T-port
3-way plug valve, T-port, 3-way plug valve, plug valve, valve,
3-way plug valve, L-port
3-way plug valve, L-port, 3-way plug valve, plug valve, valve,
Mixing valve
Mixing valve, mixing valve, valve,
Characterized port valve
Characterized port valve, characterized port valve, valve,
Manual isolation
Manual isolation, manual isolation,
Power signal
Power signal, power signal,
Statically loaded
Statically loaded, statically loaded, actuating method,
Spring loaded
Spring loaded, spring loaded, actuating method,
Spring loaded 2
Spring loaded 2, spring loaded, actuating method,
Remote control
Remote control, remotely controlled, actuating method,
Diaphragm
Diaphragm, diaphragm, actuating method,
Diaphragm, positioner
Diaphragm, positioner, diaphragm, actuating method,
Chain operated
Chain operated, chain operated, actuating method,
Gear operated
Gear operated, gear operated, actuating method,
Solenoid
Solenoid, solenoid,
Weight loaded
Weight loaded, weight loaded, actuating method,
Weight loaded 2
Weight loaded 2, weight loaded, actuating method,
Weight loaded 3
Weight loaded 3, weight loaded, actuating method,
Float operated
Float operated, float operated, actuating method,
Float operated 2
Float operated 2, float operated, actuating method,
Dash-pot
Dash-pot, dash-pot,
Dash-pot 2
Dash-pot 2, dash-pot,
Piston
Piston, piston,
Quick opening
Quick opening, quick, open, close, opening, closing,
Quick opening 2
Quick opening 2, quick, open, close, opening, closing,
Quick closing
Quick closing, quick, open, close, opening, closing,
Quick closing 2
Quick closing 2, quick, open, close, opening, closing,
Connecting unit
Connecting unit, connecting unit,
Connecting unit 2
Connecting unit 2, connecting unit,
Connecting unit 3
Connecting unit 3, connecting unit,
Motor element
Motor element, motor element,
Motor element, opens on failure
Motor element, opens on failure, motor element,
Motor element, closes on failure
Motor element, closes on failure, motor element,
Motor element, retains position on fail
Motor element, retains position on fail, motor element,
Motor element, safe direction
Motor element, safe direction, motor element,
Regulating
Regulating, regulating, method of control,

HVAC floor plan, HVAC business plan, HVAC marketing plan, blueprints and plans for HVAC, HVAC business plan sample HVAC Plans

HVAC floor plan, HVAC business plan, HVAC marketing plan, blueprints and plans for HVAC, HVAC business plan sample
Use HVAC Plans solution to create professional, clear and vivid HVAC-systems design plans, which represent effectively your HVAC marketing plan ideas, develop plans for modern ventilation units, central air heaters, to display the refrigeration systems for automated buildings control, environmental control, and energy systems.
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.
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,