Pneumatic Soft Start Valves

A pneumatic soft-start valve enables downstream pressure to slowly increase back into a pneumatic system. Soft start valves can prevent cylinders, actuators and other pneumatic equipment from being irreversibly damaged. RS Components offer a range of high-quality valves from leading brands including SMC, Festo and Legris.

Why are pneumatic soft start valves important?

Industrial pneumatic systems are often complex and depending on the application they can have varying numbers of air cylinders and other air actuators all running at different times and speeds. If maintenance or repair is needed all compressed air must be completely exhausted from machinery, airlines, air valves and air cylinders. This is essential for engineers to work safely.

The industrial pneumatic air mains supply is pressurized to 100psi and above. It is essential that this high-pressure air is not opened fully straight away. If air at full volume and pressure was introduced straight away it could have disastrous and costly results.

How does a pneumatic soft-start valve work?

Soft start valves work by opening the airflow slowly, gradually allowing a low flow of compressed air into the complete system. This ensures that the various actuators are brought up to full operating pressure slowly and safely. When all equipment is up to a threshold line pressure the soft-start valve will open fully allowing full compressed air back into the system for machines to work properly.

Our soft start valves are available in selection specifications including body materials, flow rates, threaded inlet port sizes and pressure ratings to suit a range of pneumatic control and automation applications.


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Omschrijving Prijs Manufacturer Series Type Flow Rate Supply Inlet Port Outlet Tube Size Minimum Operating Pressure Supply Inlet Port Thread Gender Maximum Operating Pressure Supply Inlet Port Thread Standard Supply Inlet Port Thread Size Body Material Standards Met
RS-stocknr. 907-6609
FabrikantnummerAV4000-04-5DZ-Q
FabrikantSMC
153,00 €
Each
Aantal stuks
AV4000 - - - - 0.2MPa - 1 MPa - - ADC -
RS-stocknr. 196-4543
FabrikantnummerAV2000-F02-5DZ-Q
FabrikantSMC
141,49 €
Each
Aantal stuks
AV2000 - - G 1/4 Female - 0.2MPa Female 1 MPa G 1/4in ADC -
RS-stocknr. 907-6605
FabrikantnummerAV2000-02-5DZ-Q
FabrikantSMC
140,07 €
Each
Aantal stuks
AV2000 Control Valve - R 1/4 Female - 0.2MPa Female 1 MPa, 1.5 (Proof) MPa R 1/4in Die Cast Aluminium CE, EC Directive, TUV
RS-stocknr. 873-2626
FabrikantnummerEAV4000-F04-4YO-Q
FabrikantSMC
174,23 €
Each
Aantal stuks
AV4000 Control Valve - G 1/2 Female - 0.2MPa Female 1 (Operating) MPa, 1.5 (Proof) MPa G 1/2in ADC TUV
RS-stocknr. 196-4544
FabrikantnummerAV3000-03-5DZ-Q
FabrikantSMC
145,41 €
Each
Aantal stuks
AV3000 - - G 3/8 Female - 0.2MPa Female 1 MPa G 3/8in ADC -
RS-stocknr. 885-2240
FabrikantnummerEAV2000-F02-5DZ-Q
FabrikantSMC
163,57 €
Each
Aantal stuks
AV2000 - - G 1/4 Female - 0.2MPa Female 1 (Operating) MPa, 1.5 (Proof) MPa G - Aluminium Die Cast -
RS-stocknr. 873-2512
FabrikantnummerEAV4000-F04-5DZ-Q
FabrikantSMC
167,68 €
Each
Aantal stuks
AV4000 Control Valve - G 1/2 Female - 0.2MPa Female 1 (Operating) MPa, 1.5 (Proof) MPa G 1/2in ADC TUV