Item # PT31AY1

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Item # PT31A Contact Us for Pricing and Orders Due to continuing supply chain issues and frequent price changes, please contact us directly at: Phone: 800-221-0714 or 732-291-3334 Dial extensions: 307 or 334 for pricing and delivery times and for placing orders.
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Item # PT31B Contact Us for Pricing and Orders Due to continuing supply chain issues and frequent price changes, please contact us directly at: Phone: 800-221-0714 or 732-291-3334 Dial extensions: 307 or 334 for pricing and delivery times and for placing orders.

Contact Us for Pricing and Orders Due to continuing supply chain issues and frequent price changes, please contact us directly at: Phone: 800-221-0714 or 732-291-3334 Dial extensions: 307 or 334 for pricing and delivery times and for placing orders.

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Price Summary
  • $1,025.71
  • $1,025.71
  • $1,025.71
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Highlights:

The PT timer is an adjustable precise time delay pneumatic device. The timer is available with an on delay (NC), or an off delay (NO) output. The timer has 1/8 inch NPT ports.

The PT series timer combines a pneumatic timing mechanism with a floating spool valve assembly to provide a wide range of adjustable time control for fluid power systems. The timing assembly, which operates independently of the control pressure, is available in nine different ranges from one tenth of a second to 60 minutes, adjustable by means of a time-calibrated dial. Timing action is initiated by a motor diaphragm operated by a control pressure of from 5 to 140 PSIG.

The timer is equipped with a multi purpose 3 way output valve allowing it to be used as normally open, normally closed or as a diverter.

The PT is designed for panel or surface mounting. Panel mounted versions include a 3 13/16 inch square bezel while surface mounted units are equipped with a bracket for vertical mounting. If required, The PT can be specially calibrated for mounting horizontally.

On Delay Timer Operation Pilot pressure is applied to the control port to start timing. After the timer reaches its set time, the valve switches over. Removal of the pilot signal at any time resets the timer.

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Description
PositionVertical Position
Mount TypeStandard Vertical Surface Mount
Timing Range0.1 to 1 sec.
Operating Pressure Range5 to 140 psi
Connections1/8″ NPT ports
Control Pressure5 to 140 psi
MediaFiltered air or non-aggressive gas, non-lubricated.
Output ValveCv – 0.25

Flow at 100 PSI – 9 CFM

Multi purpose 3 way spool

Dial IndicatorDisplays set time
Timing StarOn Delay – Application of pilot pressure to control port.
ResetOn Delay – Removal of pilot pressure from control port.
Reset Time60 ms at 50 psi
RepeatabilityUp to 200 sec. – ± 5%

Over 200 sec. – ± 10%

Time SettingVia dial

Accuracy ± 10% of full scale

OperationTiming cycle uses atmospheric pressure.
MaterialsDiaphragms – Buna N

Zamak Housing

Polycarbonate knob

Aluminum Valve with stainless spool

Operating Ambient-30 to 70 ºC

-20 to 165 ºF

Height5 1/4 in.
Width2 1/2 in.
Depth2 1/2 in.
MountingSurface mounted
Drilling Plan (Panel Mount)3 3/16 in. dia. Hole
Port Identification2 – Valve output

1 – System air supply

3 – Exhaust

C – Control Input Signal

OptionsStainless Steel Fitting Mounted

Dial Stop

Tamper Proof Cover

Power ConnectionsFor installations requiring larger output valves, use the standard timer and connect a pneumatically operated single air piloted 3 way or 4 way valve of the size required to the timer output. Contact factory with size requirements.
Typical CircuitsSee typical timing circuit diagrams at the end of the timer catalog section for help in constructing pneumatic timer circuits.
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