This model can be used in both "in-line" and "in-tank" applications. The valve is installed on the mounting ﬂange of a barge or pipeline, preventing unauthorized tampering with valve actuators. It is spring loaded in a power fail-safe closed position and is opened through the introduction of hydraulic or pneumatic pressure. When the pressure is removed, the valve closes, resulting in the complete flow shut-off.
The Model 6100 is ideally suited for applications where ﬁre safety is a consideration. With a fusible plug installed on each valve, the element material will melt at the specified temperature, thus releasing the actuating pressure and causing the valve to close automatically.