Pneumatic Solenoid Valves

A pneumatic solenoid valve is used to direct or stop the flow of compressed air in a pneumatic system. Sometimes called a directional control valve, they are used in automation and control applications to actuate tools, cylinders and larger industrial valves. RS Components offer an extensive selection of high-quality valves from leading brands including SMC, Festo, Parker, Norgren and of course RS PRO.

How are they activated?

Pneumatic solenoids can be energised in various ways including solenoid operated or air-pilot operated.

Solenoid Operated Valves

Solenoid valves have an electrical coil attached to the valve. Solenoid valves use a small electrical current to send a signal to the internal spool or poppet mechanism which opens or closes the valve. Coil control voltages are usually 12 Vdc, 24 Vac, 24 Vdc, 120 Vac and 240 Vac.

Air- Pilot Operated Valves

This type of valve requires an external air source to operate, instead of an electrical signal the valve opens and closes by air pressure which is applied to the piston or diaphragm. This can be achieved either by an electrical solenoid in another location. Alternatively, the valve can be internally air-piloted by a smaller integrated solenoid.

How do you mount them?

Solenoid valves can be mounted on DIN rail or on a manifold. A manifold is a mounting block that allows two or more valves to be mounted in a centralised location. Manifolds can be a single block or modular for easy maintenance.

How are Pneumatic Valves Classified?

Pneumatic solenoid valves are characterized by a standard numbering system consisting of two numbers. The first number represents the number ports valve has and the second number represents the number of states the valve has. The most common types are 2-way and 3-way valves which can be N/O (normally open) or N/C (normally closed). For example, a 2/2 valve has two ports (in/out) and two states (open/closed). A 3/2 valve has three ports and two states. Pneumatic solenoid valves typically have two, three or five ports.

Our Valves

Our pneumatic valves come in a wide range of configurations, pressure ranges, port sizes, thread sizes, body materials and mounting types to suit all your industrial automation and pneumatic requirements.


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Description Price Manufacturer Series Mounting Style Function Connection Port Thread Actuation Type Solenoid Fitted Body Material Maximum Flow Rate Solenoid Voltage Solenoid Power Consumption Minimum Operating Pressure Minimum Operating Temperature Maximum Operating Temperature Configuration
RS Stock No. 330-2999
Mfr. Part No.SCG551A001MS 230V CA
$273.33
Each
units
551 NAMUR 3/2, 5/2 G 1/4 Pilot/Spring Yes Aluminium 10L/min 230V ac 3.5 (Hold) VA, 6 (Inrush) VA 2bar -25°C +60°C -
RS Stock No. 302-6285
Mfr. Part No.52000078
$115.53
Each
units
520 Manifold 5/2 G 1/8 Pilot/Pilot - Polyamide 600L/min - - 0bar +5°C +50°C -
RS Stock No. 302-6421
Mfr. Part No.52100001
$210.66
Each
units
521 Manifold 5/2 G 1/4 Solenoid/Pilot Yes Anodised Aluminium 1050L/min 24V dc 1.6W 1.5bar +5°C +50°C -
RS Stock No. 302-6178
Mfr. Part No.51900001
$146.54
Each
units
519 Manifold 5/2 Metric M5 Solenoid/Pilot Yes Anodised Aluminium 175L/min 24V dc 1.6W 1.5bar +5°C +50°C -
RS Stock No. 278-4407
Mfr. Part No.19090006
$64.97
Each
units
190 Manifold 3/2 - Solenoid/Spring Yes Aluminium 70L/min - - 0bar -10°C +60°C -
RS Stock No. 302-6386
Mfr. Part No.52000090
$258.92
Each
units
520 Manifold 5/3 W3 G 1/8 Pilot/Pilot Yes Anodised Aluminium 600L/min 24V dc 1.6W 1.5bar +5°C +50°C -
RS Stock No. 302-6443
Mfr. Part No.52100004
$200.51
Each
units
521 Manifold 5/2 G 1/4 Solenoid/Pilot Yes Anodised Aluminium 1050L/min 230V ac 2VA 1.5bar +5°C +50°C -
RS Stock No. 278-3886
Mfr. Part No.54191027
$163.41
Each
units
541 Manifold 5/2 - Solenoid/Pilot Yes Aluminium 1400L/min 24 V ac/dc, 48 V ac/dc, 115 V ac, 230 V ac - 3bar -10°C +60°C -
RS Stock No. 302-6184
Mfr. Part No.51900004
$167.06
Each
units
519 Manifold 5/2 Metric M5 Solenoid/Pilot Yes Anodised Aluminium 175L/min 230V ac 2VA 1.5bar +5°C +50°C -
RS Stock No. 302-6459
Mfr. Part No.52100005
$264.23
Each
units
521 Manifold 5/2 G 1/4 Solenoid/Pilot Yes Anodised Aluminium 1050L/min 24V dc 1.6W 1.5bar +5°C +50°C -
RS Stock No. 302-6207
Mfr. Part No.51900008
$302.84
Each
units
519 Manifold 5/2 Metric M5 Solenoid/Pilot Yes Anodised Aluminium 175L/min 230V ac 2VA 1.5bar +5°C +50°C -
RS Stock No. 302-6291
Mfr. Part No.52000189
$156.87
Each
units
520 Manifold 3/2 G 1/8 Pilot/Pilot Yes Polyacetal 400L/min 24V dc 1.6W 1.5bar +5°C +50°C -
RS Stock No. 278-3870
Mfr. Part No.54191024
$163.77
Each
units
541 Manifold 5/2 - Solenoid/Pilot Yes Aluminium 1400L/min 24 V ac/dc, 48 V ac/dc, 115 V ac, 230 V ac - 3bar -10°C +60°C -
RS Stock No. 278-4255
Mfr. Part No.54301003
$423.61
Each
units
543 Manifold 5/2 - Pilot/Pilot - Aluminium 4200L/min - - -0.95bar -10°C +60°C -
RS Stock No. 330-2983
Mfr. Part No.SCG551A001MS 115V CA
$215.99
Each
units
551 NAMUR 3/2, 5/2 G 1/4 Pilot/Spring Yes Aluminium 10L/min 115V ac 3.5 (Hold) VA, 6 (Inrush) VA 2bar -25°C +60°C -
RS Stock No. 302-6314
Mfr. Part No.52000001
$187.95
Each
units
520 Manifold 5/2 G 1/8 Solenoid/Pilot Yes Anodised Aluminium 600L/min 24V dc 1.6W 1.5bar +5°C +50°C -
RS Stock No. 122-709
Mfr. Part No.519 00 006
$275.58
Each
units
519 Manifold 5/2 Metric M5 Solenoid/Pilot Yes Anodised Aluminium 175L/min 24V ac 2VA 1.5bar +5°C +50°C -
RS Stock No. 302-6162
Mfr. Part No.51900078
$133.76
Each
units
519 Manifold 5/2 Metric M5 Pilot/Pilot - Aluminium 175L/min - - 0bar +5°C +50°C -
RS Stock No. 122-850
Mfr. Part No.519 00 002
$154.39
Each
units
519 Manifold 5/2 Metric M5 Solenoid/Pilot Yes Anodised Aluminium 175L/min 24V ac 1.6W 1.5bar +5°C +50°C -
RS Stock No. 600-8347
Mfr. Part No.54292027
$265.17
Each
units
542 Manifold 5/2 - Solenoid/Pilot Yes Aluminium 2800L/min 24 V ac/dc, 48 V ac/dc, 115 V ac, 230 V ac - 3bar -10°C +60°C -