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 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.

119 Products showing for Pneumatic Soft Start Valves

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In Stock
Festo Pneumatic Soft Start Valve, 4300 L/min G 1/2 Female 10 bar, 8038491
  • RS Stock No. 202-3218
  • Mfr. Part No. MS6-SV-1/2-D-10V24P-2M12-SO-AG
Subtotal (1 unit)
HK$6,605.80
HK$6,605.80/unit
In Stock
EMERSON – AVENTICS Pneumatic Soft Start Valve, 2000 L/min 1/4 in G 16 bar 0.375 in
  • RS Stock No. 299-526
  • Mfr. Part No. R412006272
Subtotal (1 unit)
HK$899.30
HK$899.30/unit
In Stock
Camozzi Pneumatic Soft Start for Valve, 1350 L/min G 1/4 Threaded 10 bar G 1/4
  • RS Stock No. 830-180
  • Mfr. Part No. MD1-AV-1/4
Subtotal (1 unit)
HK$509.09
HK$509.09/unit
Stocked by manufacturer
Festo Pneumatic Soft Start Valve, 3000 L/min 1/2 in G 10 bar, 8067409
  • RS Stock No. 350-727
  • Mfr. Part No. VABF-S6-1-P5A4S2S-G12-1T5-PA
Subtotal (1 unit)
HK$4,946.40
HK$4,946.40/unit
Stocked by manufacturer
Festo Directional Control Valve, 7000 L/min G1/2 Pneumatic 1.8 MPa G1/2
  • RS Stock No. 852-917
  • Mfr. Part No. MS6-EE-1/2-V24-AD7-B
Subtotal (1 unit)
HK$2,116.65
HK$2,116.65/unit
Temporarily out of stock
EMERSON – AVENTICS Pneumatic Soft Start Valve, 2000 L/min 1/4 in G 16 bar 0.25 in
  • RS Stock No. 299-529
  • Mfr. Part No. R412006275
Subtotal (1 unit)
HK$1,219.80
HK$1,219.80/unit
Currently unavailable
SMC Pneumatic Soft Start Valve, 3269 L/min 3/8 in G 3/8 10 bar 3/8 in
  • RS Stock No. 254-8193
  • Mfr. Part No. AV3000-03-5D-Q
Subtotal (1 unit)
HK$1,663.60
HK$1,663.60/unit
In Stock
EMERSON – AVENTICS Pneumatic Soft Start Valve, 2000 L/min 1/4 in G 12 bar 0.5 in
  • RS Stock No. 315-895
  • Mfr. Part No. R412014671
Subtotal (1 unit)
HK$743.10
HK$743.10/unit
In Stock
SMC Pneumatic Soft Start Valve, 2014 L/min 3/8 in G 3/8 10 bar 3/8 in
  • RS Stock No. 873-2538
  • Mfr. Part No. EAV3000-F03-5DZ-Q
Subtotal (1 unit)
HK$1,555.00
HK$1,555.00/unit
In Stock
EMERSON – AVENTICS Pneumatic Soft Start Valve, 4500 L/min 1/2 in G 16 bar 0.375 in
  • RS Stock No. 315-875
  • Mfr. Part No. R412007275
Subtotal (1 unit)
HK$1,555.40
HK$1,555.40/unit
Stocked by manufacturer
Festo Pneumatic Soft Start Valve, 3000 L/min G1/2 Pneumatic 1 MPa G1/2
  • RS Stock No. 851-974
  • Mfr. Part No. VABF-S6-1-P5A4S2S-G12-1T1L-PZ
Subtotal (1 unit)
HK$4,396.61
HK$4,396.61/unit
Stocked by manufacturer
Festo Pneumatic Soft Start Valve, 3000 L/min G1/2 Pneumatic 1 MPa G1/2
  • RS Stock No. 851-973
  • Mfr. Part No. VABF-S6-1-P5A4S1YE-G12-1T1L-PZ
Subtotal (1 unit)
HK$4,396.61
HK$4,396.61/unit
In Stock
EMERSON – AVENTICS Pneumatic Soft Start Valve, 4500 L/min 1/2 in G Plug 10 bar
  • RS Stock No. 315-976
  • Mfr. Part No. R412007389
Subtotal (1 unit)
HK$3,135.40
HK$3,135.40/unit
In Stock
EMERSON – AVENTICS Pneumatic Soft Start Valve, 2000 L/min 3/8 in G 16 bar 0.375 in
  • RS Stock No. 299-527
  • Mfr. Part No. R412006273
Subtotal (1 unit)
HK$899.30
HK$899.30/unit
Stocked by manufacturer
Festo Pneumatic Soft Start Function Fitting, 3000 L/min 0.2 Mpa, 558230
  • RS Stock No. 203-0284
  • Mfr. Part No. VABF-S6-1-P5A4-G12-4-1
Subtotal (1 unit)
HK$4,125.20
HK$4,125.20/unit
In Stock
Festo Pneumatic Soft Start Valve, 4300 L/min G 1/2 Female 10 bar, 548717
  • RS Stock No. 202-3168
  • Mfr. Part No. MS6-SV-1/2-E-10V24-SO-AG
Subtotal (1 unit)
HK$9,353.50
HK$9,353.50/unit
Temporarily out of stock
EMERSON – AVENTICS Pneumatic Soft Start Valve, 1300 L/min 3/8 in G 10 bar 0.375 in
  • RS Stock No. 299-532
  • Mfr. Part No. R412006283
Subtotal (1 unit)
HK$2,853.10
HK$2,853.10/unit
Stocked by manufacturer
SMC Pneumatic Soft Start Valve 1 MPa
  • RS Stock No. 622-865
  • Mfr. Part No. SF4-5YZ-80-Q
Subtotal (1 unit)
HK$925.50
HK$925.50/unit
Stocked by manufacturer
Festo Pneumatic Soft Start Valve, 3000 L/min G1/2 Pneumatic 1 MPa G1/2
  • RS Stock No. 851-972
  • Mfr. Part No. VABF-S6-1-P5A4S2YE-G12-1T1L-PZ
Subtotal (1 unit)
HK$4,396.61
HK$4,396.61/unit
Stocked by manufacturer
Festo Pneumatic Soft Start Valve, 6450 L/min G 1/2 Threaded 18 bar, 529799 G 1/2
  • RS Stock No. 288-2702
  • Mfr. Part No. MS6-DE-1/2-V110
Subtotal (1 unit)
HK$2,185.30
HK$2,185.30/unit
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