Transcription of Pneumatic symbols - ASCO
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Pneumatic symbols - ASCO
All leaflets are available on: & engineering information - 25 Pneumatic COMPONENTSP neumatic symbolsPNEUMATIC ACTUATORS single-acting cylinder rod returned at rest (SER)double-acting cylindernon cushioneddoubled-endedpiston rod cylindersingle-acting cylinderrod out at rest (SES)Double-acting cylinderwith adjustablepneumatic cushioningdouble-actingrotatable cylinderSOLENOID VALVES, CONTROL VALVES, PILOT VALVESP orts/positions:The function of a valve (3/2, 4/2, 5/3 etc.) is indicated by two figures:- the first shows the number of ports, (NB: pilot ports do not count)- the second shows the number of valve : 3/2 = 3 ports - 2 positions : 5/3 = 5 ports - 3 positionsThe symbol for the solenoid or the pressure-operated valve has the same number of squares as the valve has right-hand square shows the valve in its non-actuated (rest) position, the left-hand square corresponds to a valve in its actuated (work) positions3 positionsFunction: - NC = normally closed (rest position) - NO = normally open (rest position) - U = universal (pressure supply to any one of the ports)Direction of flow: The arrow in the square shows the direction of flow of the the pipework is shown con-nected to the square representing the valve in its non-actuated position.
All leaflets are available on: www.asco.com General & Engineering Information - 25 PNEUMATIC COMPONENTS Pneumatic symbols PNEUMATIC ACTUATORS single …
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