On-Off Valves and Soft Start

On-off or shut off valves are a necessary safety component of every pneumatic system. They can be used to exhaust downstream pressure when carrying out maintenance or as a convenient way to isolate supplied pressure. Soft start valves can be used to minimise system shock on start-up, by setting the initial rate of inflow and system pressurisation. A soft start valve will also exhaust the system quickly to allow safe servicing.

Page 1 of 9
  • Camozzi MX2-3/4-V16
    Lockable isolation vlv-3/4-3/2 vlv-electro-pneu.-servo-pilot


    Part No: MX2-3/4-V16

    • Size: 2
    • Range: MX
    • Actuation Type: Electro-pneumatic Control
    • Pneumatic Connection: 3/4
    £96.04 (Ex VAT)
    £115.25 (Inc VAT)
  • Camozzi MX3-3/4-V01
    Lockable isolation valve-3/4-3/2 valve-manual


    Part No: MX3-3/4-V01

    • Size: 3
    • Range: MX
    • Actuation Type: Manual Control
    • Pneumatic Connection: 3/4
    £82.94 (Ex VAT)
    £99.53 (Inc VAT)
  • Festo HEL-1/2-D-MAXI 186522
    On/off valve


    Part No: HEL-1/2-D-MAXI, 186522

    • Size: MAXI
    • Range: D Series
    • Pneumatic Connection: 1/2
    • Design: Pneumatic Soft Start Valve
    • Nominal Flow Rate: 5600l/min
    £89.14 (Ex VAT)
    £106.96 (Inc VAT)
  • Festo MS4-EM1-1/4-S-Z 541260
    On/off valve


    Part No: MS4-EM1-1/4-S-Z, 541260

    • Size: MS4
    • Range: MS
    • Actuation Type: Manual
    • Pneumatic Connection: 1/4
    • Design: Manual On-Off Valve
    • Nominal Flow Rate: 210l/min
    £35.69 (Ex VAT)
    £42.83 (Inc VAT)
  • Festo HEE-1/2-D-MIDI-230 172946
    On/off valve


    Part No: HEE-1/2-D-MIDI-230, 172946

    • Size: MIDI
    • Control Voltage: 230V AC
    • Range: D Series
    • Actuation Type: Electrical
    • Pneumatic Connection: 1/2
    • Design: Electrical On-Off Valve
    • Nominal Flow Rate: 3600l/min
    £100.13 (Ex VAT)
    £120.16 (Inc VAT)
  • Festo HE-1/4-D-MINI 162807
    On/off valve


    Part No: HE-1/4-D-MINI, 162807

    • Size: MINI
    • Range: D Series
    • Actuation Type: Manual
    • Pneumatic Connection: 1/4
    • Design: Manual On-Off Valve
    • Nominal Flow Rate: 1500l/min
    £45.32 (Ex VAT)
    £54.39 (Inc VAT)
  • Festo HEE-3/4-D-MIDI-110 172948
    On/off valve


    Part No: HEE-3/4-D-MIDI-110, 172948

    • Size: MIDI
    • Control Voltage: 110V AC
    • Range: D Series
    • Actuation Type: Electrical
    • Pneumatic Connection: 3/4
    • Design: Electrical On-Off Valve
    • Nominal Flow Rate: 3800l/min
    £100.13 (Ex VAT)
    £120.16 (Inc VAT)
  • Camozzi MC104-AV
    Soft start Valve


    Part No: MC104-AV

    £66.22 (Ex VAT)
    £79.46 (Inc VAT)
  • Festo MS6-DL-3/8 529821
    Soft start valve


    Part No: MS6-DL-3/8, 529821

    • Size: MS6
    • Range: MS
    • Pneumatic Connection: 3/8
    • Design: Pneumatically Operated Soft-Start Valve
    • Nominal Flow Rate: 5050l/min
    £63.09 (Ex VAT)
    £75.71 (Inc VAT)
  • Festo MS6-EE-3/8-10V24-S 542606
    On/off valve


    Part No: MS6-EE-3/8-10V24-S, 542606

    • Size: MS6
    • Control Voltage: 24V DC
    • Range: MS
    • Actuation Type: Electrical
    • Pneumatic Connection: 3/8
    • Design: Electrical On-Off Valve
    • Nominal Flow Rate: 5500l/min
    £96.89 (Ex VAT)
    £116.27 (Inc VAT)
  • Festo MS4-EM1-1/8 541262
    On/off valve


    Part No: MS4-EM1-1/8, 541262

    • Size: MS4
    • Range: MS
    • Actuation Type: Manual
    • Pneumatic Connection: 1/8
    • Design: Manual On-Off Valve
    • Nominal Flow Rate: 190l/min
    £30.26 (Ex VAT)
    £36.31 (Inc VAT)
  • Festo HEE-1/4-D-MINI-230 165073
    On/off valve


    Part No: HEE-1/4-D-MINI-230, 165073

    • Size: MINI
    • Control Voltage: 230V AC
    • Range: D Series
    • Actuation Type: Electrical
    • Pneumatic Connection: 1/4
    • Design: Electrical On-Off Valve
    • Nominal Flow Rate: 1500l/min
    £84.69 (Ex VAT)
    £101.63 (Inc VAT)
  • Festo HEL-3/8-D-MIDI 165079
    On/off valve


    Part No: HEL-3/8-D-MIDI, 165079

    • Size: MIDI
    • Range: D Series
    • Pneumatic Connection: 3/8
    • Design: Pneumatic Soft Start Valve
    • Nominal Flow Rate: 3200l/min
    £69.35 (Ex VAT)
    £83.21 (Inc VAT)
  • Festo HE-1/2-D-MIDI 162810
    On/off valve


    Part No: HE-1/2-D-MIDI, 162810

    • Size: MIDI
    • Range: D Series
    • Actuation Type: Manual
    • Pneumatic Connection: 1/2
    • Design: Manual On-Off Valve
    • Nominal Flow Rate: 3600l/min
    £60.79 (Ex VAT)
    £72.94 (Inc VAT)
  • Festo HEE-D-MIDI-110 172960
    On/off valve


    Part No: HEE-D-MIDI-110, 172960

    • Size: MIDI
    • Control Voltage: 110V AC
    • Range: D Series
    • Actuation Type: Electrical
    • Pneumatic Connection: Without Connecting Plates
    • Design: Electrical On-Off Valve
    • Nominal Flow Rate: 3600l/min
    £95.93 (Ex VAT)
    £115.12 (Inc VAT)
  • Camozzi MC104-V01
    Manual On-off Valve


    Part No: MC104-V01

    £64.22 (Ex VAT)
    £77.07 (Inc VAT)
  • Camozzi MD1-V01-1/4
    Manual On-off Valve


    Part No: MD1-V01-1/4

    £39.08 (Ex VAT)
    £46.90 (Inc VAT)
  • Camozzi MD1-V01-1/8
    Manual On-off Valve


    Part No: MD1-V01-1/8

    £39.08 (Ex VAT)
    £46.90 (Inc VAT)
  • Festo MS6-EE-1/2-10V24-S 542602
    On/off valve


    Part No: MS6-EE-1/2-10V24-S, 542602

    • Size: MS6
    • Control Voltage: 24V DC
    • Range: MS
    • Actuation Type: Electrical
    • Pneumatic Connection: 1/2
    • Design: Electrical On-Off Valve
    • Nominal Flow Rate: 7000l/min
    £90.83 (Ex VAT)
    £109.00 (Inc VAT)
  • Camozzi MX2-1/2-V16
    Lockable isolation valve-1/2-3/2 valve-electro-pneumatic


    Part No: MX2-1/2-V16

    • Size: 2
    • Range: MX
    • Actuation Type: Electro-pneumatic Control
    • Pneumatic Connection: 1/2
    £96.04 (Ex VAT)
    £115.25 (Inc VAT)
  • Festo MS6-EM1-1/2-S-Z 541269
    On/off valve


    Part No: MS6-EM1-1/2-S-Z, 541269

    • Size: MS6
    • Range: MS
    • Actuation Type: Manual
    • Pneumatic Connection: 1/2
    • Design: Manual On-Off Valve
    • Nominal Flow Rate: 655l/min
    £48.32 (Ex VAT)
    £57.98 (Inc VAT)
  • Festo HE-1/8-D-MINI 162806
    On/off valve


    Part No: HE-1/8-D-MINI, 162806

    • Size: MINI
    • Range: D Series
    • Actuation Type: Manual
    • Pneumatic Connection: 1/8
    • Design: Manual On-Off Valve
    • Nominal Flow Rate: 1000l/min
    £45.32 (Ex VAT)
    £54.39 (Inc VAT)
  • Festo HEE-D-MAXI-110 172963
    On/off valve


    Part No: HEE-D-MAXI-110, 172963

    • Size: MAXI
    • Control Voltage: 110V AC
    • Range: D Series
    • Actuation Type: Electrical
    • Pneumatic Connection: Without Connecting Plates
    • Design: Electrical On-Off Valve
    • Nominal Flow Rate: 6000l/min
    £116.55 (Ex VAT)
    £139.86 (Inc VAT)
  • Festo MS6-DE-3/8-10V24 542566
    Soft start valve


    Part No: MS6-DE-3/8-10V24, 542566

    • Size: MS6
    • Control Voltage: 24V DC
    • Range: MS
    • Actuation Type: Electrical
    • Pneumatic Connection: 3/8
    • Design: Electrically Operated Soft-Start Valve
    • Nominal Flow Rate: 5050l/min
    £140.32 (Ex VAT)
    £168.38 (Inc VAT)
Page 1 of 9

What Are On-Off Valves and Soft Start?

Many on-off and soft start valves are supplied as modules that can conveniently be connected with other components in an FRL assembly. Electric units will integrate easily with machine controls, while manual units may be used to isolate power by locking them in the exhaust position. Simple on-off valves can be of the quarter turn ball variety, venting downstream pressure through an exhaust port when the handle is turned to turn off inlet pressure. Space-saving three-port valves with a modular connection can also provide residual pressure relief in a pneumatic system, as well as downstream exhaust for maintenance purposes.

Soft start valves enable the initial pressurisation of a pneumatic system to be effected gradually, while still allowing for quick downstream exhaust. The direction of air flow can be changed and easily identified by the orientation of operational handles and/or labels. Soft start valves offer improved airflow and energy efficiency, and can be used as self-contained units or as part of an FRL assembly with modular spacers. Some options also include a lock-out capability for safer servicing.

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