The Model 141-4 Ball Valve is a 1/4-turn shutoff device used for isolating the pilot system from the main valve. They are extremely useful for performing routine maintenance and troubleshooting.
Ball valves are standard on water service valves; optional on fuel service valves.
The Model 141-4 Ball Valve is shown on OCV Valve Schematics as:
|EXAMPLE: Shown here on a MODEL 127-4 Pressure Reducing / Check Valve.|