Pressure Relief Valves
Pressure Relief Valves are comprised of several components including inlet nozzle, valve seat, body, seat holder, pressure adjusting screw, cap, spring, bonnet, & seal. They are required to control or the limit the pressure surges in the pipeline systems of various industries. Release in pressure prevents sudden equipment failure & damage and hazard. These valves are highly appreciated for their close tight grip, ability to handle high pressure, and adjustable closing speed.
Pilot Operated Pressure Relief Valve
Pilot Operated Pressure Relief Valve is comprised of an inlet & outlet, piston, dome, pilot tube & exhaust, and control pilot. It is greatly admired for its compact size, tight sealing ability, and completely reliable nature. This relief valve works by using system’s pressure to close the valve, unlike PRV where a disc held by spring does the same function. It has the ability to bear pressure up to 350 kilograms.
Pressure Relief & Flow Valves
Pressure Relief & Flow Valves are widely utilized in power plants and cement processing, fertilizers, irrigation, and pharmaceutical industries. They perform two functions, which includes the controlling of rate of fluid flow and reducing the pressure during surge. These valves are comprised of a spring which is required to hold the piston on seat in order to seal the valve. They are actuated by the line pressure via pilot control system.
Proportional Pressure Relief Valves
Proportional Pressure Relief Valves are comprised of a spring which provides desired set pressure, cap for easy adjustment, lock nut, label for identifying set pressure range, quad seal, O-ring, and end connection. They are the type of automatic valves that open gradually when the pressure in the system increases to maintain only required amount of pressure. These are known to have excellent chemical resistance, sturdy structure, and ability to withstand high pressure situations.
Proportional Pressure Valves
Proportional Pressure Valves are most commonly utilized in hydraulic systems and are required to limit the pressure allowing set limit to be adjusted with the help of electronic control. They work on the principle of proportional solenoid operation having wide range of hydraulic flow capacity. Excessive flow in these valves returns to the reservoir tank during pressure relieving in order to improve machine’s efficiency and productivity.