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Pneumatic Timers

Pneumatic timers are used in industrial systems where time needs to be measured. They are used in place of electrical timers, where the use of electricity is unsafe or undesirable, for example where flammable materials are present.
Most pneumatic timers use a chamber and a piston to measure time. Air is allowed into the chamber, which pushes the piston towards the end and allows a precise time to be set.

Pneumatic timers do not use electrical current and are very accurate.

What are pneumatic timers used for?
Pneumatic timers are used where an electrical current is undesirable, restricted, unavailable or dangerous, such as in the mining, oil and gas industries. You can use them where precise time control is important. By utilising a piston and control valve rather than an electrical current found in a standard timer, such as plug-in time switches, pneumatic timers do not generate sparks that could cause fires or explosions.

Types of pneumatic timers
Choose the timer most suitable for your needs depending on maximum and minimum operating pressures, temperatures and time required. Certain models have Hazardous Area Certification.
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Part Details Brand Stock Manufacturer Series Minimum Operating Pressure Maximum Operating Pressure Minimum Operating Temperature Maximum Operating Temperature Minimum Time Maximum Time
Crouzet 2 → 8bar 0.1 → 30s Pneumatic Timer, -5 → +50°C Crouzet 38 81 2bar 8 bar -5°C +50°C 0.1s 30s
Parker 3 → 8bar 10 → 180s Pneumatic Timer, -15 → +60°C Parker 35 PRT 3bar 8 bar -15°C +60°C 10s 180s
SMC 0.1 → 1Mpa 0.5 → 60s Time Delay Valve, -5 → +60°C
  • RS Stock No. 384-333
  • Brand SMC
  • Mfr. Part No. VR2110-01
SMC 24 VR 0.1MPa 1 MPa -5°C +60°C 0.5s 60s
Norgren 2 → 10bar 0.2 → 0.4ms Pneumatic Timer, -20 → +80°C Norgren 23 04 2bar 10 bar -20°C +80°C 0.2ms 0.4ms
Parker 3 → 8bar 0.1 → 30s Pneumatic Timer, -15 → +60°C Parker 16 PRT 3bar 8 bar -15°C +60°C 0.1s 30s
Parker 3 → 8bar 0.1 → 30s Pneumatic Timer, -15 → +60°C Parker 12 PRT 3bar 8 bar -15°C +60°C 0.1s 30s
Parker 3 → 8bar 0.1 → 3s Pneumatic Timer, -15 → +60°C Parker 12 PRT 3bar 8 bar -15°C +60°C 0.1s 3s
Crouzet 2 → 8bar 0.1 → 15s Time Delay Module, -5 → +50°C Crouzet 7 81 2bar 8 bar -5°C +50°C 0.1s 15s
Crouzet 2 → 8bar 2 → 8s Pneumatic Timer, -5 → +50°C Crouzet 7 81 2bar 8 bar -5°C +50°C 0.1s 30s
Parker 3 → 8bar 0.1 → 3s Pneumatic Timer, -15 → +60°C Parker 7 PRT 3bar 8 bar -15°C +60°C 0.1s 3s
Norgren 2 → 10bar 0.2 → 5s Time Delay Valve, +5 → +80°C Norgren 4 - 2bar 10 bar +5°C +80°C 0.2s 5s
Crouzet 2 → 8bar 0.1 → 15s Pneumatic Timer, -5 → +50°C Crouzet 3 81 2bar 8 bar -5°C +50°C 0.1s 15s
Crouzet 2 → 8bar Pneumatic Timer, -5 → +50°C Crouzet 3 81 2bar 8bar -5°C +50°C - -
Crouzet 2 → 8bar 0.1 → 60s Pneumatic Timer, -5 → +50°C Crouzet 2 81 2bar 8 bar -5°C +50°C 0.1s 60s
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