The NLS valve is an overflow pneumatically actuated single seat valve designed for the dairy and food-processing industries, beverage production, pharmaceutical and fine chemicals industries. It is widely used as a bypass valve for the positive displacement pumps, it is also used to protect the equipment in case of excessive pressure.
The spring pressure forces the valve to close, the pressure can be adjusted by a screw on the top of the valve. When the configured pressure is exceeded, the valve opens. The valve is provided with a pneumatic seat lift, it allows the CIP liquid pass through during the CIP process.