500X Relief Valve is mainly applicable to firefighting or other water supply system to prevent of the system overpressure or keep firefighting water supply system pressure. After the fire pump closing, it can also reduce the water hammer attack. It can be also applicable to large water supply system as water hammer eliminator. And even more, there is one self-cleaning filtering net which uses the fluids self-characteristics to prevent the suspended particulate with bigger specific gravity and diameter from flowed into the control system, so that it can make sure the systemic circulation proceed without hindrance, the valve operate safely and reliably.
Ball Valve 
