Interlock device AL

interlock device
interlock device
interlock device
interlock device
interlock device
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Description

The Air Lock pressure static device (AL) is mounted on pneumatic actuators when they are to be isolated from control devices (positioners, electro-pneumatic distributors, etc.) whenever air pressure falls below operating safety point. The pressure switch device AL has been designed to meet different air-lock systems, to guarantee a specific safety position of actuators, as required by the final control element. The Air-Lock device consists mainly in a pneumatic pressure switch with set point calibration. The hysteresis is 20 kPa (15 PSI) approximately. This item operates one or more 3-way synchronous commutators, depending on the function required. Switching device operates immediately, also in case of a gradual air-pressure decrease to the set value. The differential avoids a continuous, inopportune commutation when air-pressure swings around the set point.
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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.