Position | Vertical Position |
Mount Type | Standard Vertical Surface Mount |
Timing Range | 1.5 to 15 sec. |
Operating Pressure Range | 5 to 140 psi |
Connections | 1/8″ NPT ports |
Control Pressure | 5 to 140 psi |
Media | Filtered air or non-aggressive gas, non-lubricated. |
Output Valve | Cv – 0.25 Flow at 100 PSI – 9 CFM Multi purpose 3 way spool |
Dial Indicator | Displays set time |
Timing Star | On Delay – Application of pilot pressure to control port. |
Reset | On Delay – Removal of pilot pressure from control port. |
Reset Time | 60 ms at 50 psi |
Repeatability | Up to 200 sec. – ± 5% Over 200 sec. – ± 10% |
Time Setting | Via dial Accuracy ± 10% of full scale |
Operation | Timing cycle uses atmospheric pressure. |
Materials | Diaphragms – Buna N Zamak Housing Polycarbonate knob Aluminum Valve with stainless spool |
Operating Ambient | -30 to 70 ºC -20 to 165 ºF |
Height | 5 1/4 in. |
Width | 2 1/2 in. |
Depth | 2 1/2 in. |
Mounting | Surface mounted |
Drilling Plan (Panel Mount) | 3 3/16 in. dia. Hole |
Port Identification | 2 – Valve output 1 – System air supply 3 – Exhaust C – Control Input Signal |
Options | Stainless Steel Fitting Mounted Dial Stop Tamper Proof Cover |
Power Connections | For 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 Circuits | See typical timing circuit diagrams at the end of the timer catalog section for help in constructing pneumatic timer circuits. |
Item # PT31C
Price Summary
- $980.71
- $980.71
- $980.71
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.
Weight | 3 lbs |
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Intended Use-?Series 75 and 76 valves are intended for general purpose industrial applications utilizing normal shop air supply systems. For special applications with other media or other environments, contact Kuhnke.
Media-?Compressed air or other neutral gases, properly filtered. For applications on liquids contact Kuhnke.
Lubrication-?Valves operate on lubricated or non-lubricated systems. After using components in a lubricated system, do not switch to an un lubricated system. Avoid over lubrication.
Vacuum Applications-?Spool Valve designs can be applied on vacuum systems. For applications using poppet valves, use only specially assembled valves shown in the catalog.
Dimensions and Design Changes-?All dimensions in this catalog are approximate, if necessary, detailed drawings can be obtained from Kuhnke or from one of the Kuhnke websites. Dimensions, valve design and materials are subject to change without notice.
Metric and NPT threads-?Although similar in size, valve port threads in metric ported valves are different from NPT versions. NPT versions have a tapered thread that is used to form a seal with the fitting thread. Metric thread is straight, and the seal is provided by an o-ring or washer normally included with the connection fitting. Metric fittings can be used on NPT threaded valves, but NPT fittings cannot be used on metric threaded valves.
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