The Excess Flow Valves manufactured and supplied by us are designed to stop when a sudden flow surge occurs. They automatically reset when pressure is restored. Also known as surge preventer, earthquake valve, shutdown valve, they are single line in which pressurized gas or liquid flows in either directions. Every valve has its own closing flow rate based on different conditions. Excess Flow Valves can be used for different types of fluids & processes like butane, nitrogen air, anhydrous ammonia, LP gas, water & various other. Moreover, they are available in a different variety of pressure materials, flange designs as well as end connections as per the customers requirements.