A tank pressurization control valve controls the operation of the feedwater control valve and controls the pressurization of a feedwater biasing chamber in the storage tank.

The valve utilizes a negative pressure at the outlet chamber (108) that biases the valve closed until a sufficient column of water overcomes the bias.

The biasing means permits the pump to continue to operate as the water level in the sump falls.

The variable mechanical load is essentially a shear load.

The variable mechanical load is essentially a shear load.

A tank pressurization control valve controls the operation of the feedwater control valve and controls the pressurization of a feedwater biasing chamber in the storage tank.

The biasing member (370) exerts a biasing force on the valve member (356).

The at least one bias sensor is configured to provide a bias signal corresponding to a bias force on the guard member.

The third biasing force is substantially opposite to the first biasing force and in combination with the second biasing force overcomes the first biasing force and moves the armature (108).

The second section (40B) includes a biasing surface (35) and a biasing sub-portion (36A) configured to hold a biasing member (17).

An equalizing biasing member in the sealed housing exerts a bias against the inflatable member.

A biasing member (98)biases the mechanism away from the cover and carrier tapes.

The biasing element assembly includes a single biasing element having first and second ends.

As such, the positioning coils are thereafter able to move the actuator free of the bias from the biasing agent.

The resilient element generates a bias greater than a combined bias exerted by the shut off valves on the actuator.