304 energy storage tank valve

What is a series 80 relief valve?

Air or hydraulic cylinders provide the necessary force to open or close the valve with a maximum required supply pressure of 100 psig (6.9 barg). The air cylinders are sized so that the system is inherently safe from overloading the bottom of the tank at operating pressures. Series 80 relief valves on the supply line provide backup assurance.

How are stainless steel valves installed?

Stainless steel cables from the operators to the valves are installed with enough cable slack to accommodate maximum thermal and load changes of the tank top to bottom dimension. As proper cable length is critical to the valve operation, adjustment is provided inside each operator housing.

What are the design features of a water tank valve?

Design features are simple yet rugged to withstand the rigors of construction and maintenance-free. When mounted on the tank bottom, this valve allows near 100% withdrawal of liquid. It does not depend on counter-weights or actuator forces for closing and its fail-safe condition is closed.

What are the requirements for an internal valve (ITV)?

The ITV is designed to satisfy all of the Code’s requirements, specifically paragraph 6333: “The design and installation of an internal valve shall be such that any failure of the penetrating nozzle resulting from external pipe strain will be beyond the shutoff seats of the internal valve itself.”