Logical Valves "OR"

A pneumatic logical valve "OR" is a device that implements switching between two input air supply lines with priority given to the input with higher pressure.

One way to use an "OR" logic pneumatic valve is to construct a pneumatic circuit with two control loops for a pneumatic cylinder. For example, it is used as one of the automatic valves for the door opening mechanisms of ISUZU, Bogdan, ATAMAN buses, or others where an "OR" element is configured for emergency opening. The SO-ST-06 shuttle valve model from "Specialist" is analogous to the SCS-668-06 by Camozzi.

Technical Characteristics of "OR" Function Valves SO-ST

Dimensions SO-ST

Operating Principle of "OR" Valve

Denotation of "OR" Valve on Pneumatic Diagram

The "OR" pneumatic element is denoted on pneumatic diagrams as shown in the figure. Example of connection labeling:

• P1, P2 — first and second input (pressure source);
• A — output to the consumer.