Dual plate check valve
Dual plate check valves with the same performance as conventional one-way valves have higher strength, lower weight, and shorter inlet and outlet lengths. This type of one-way valve consists of two plates connected to a spring connected to a hinge-like axis. By reducing the fluid flow flux, the plates of this valve are closed using the force of the rear spring, and without the need to reverse the flow, the spring on the discs in this type of valve reduces the Ram hit and noise operation. This type of valve is designed so that the amount of fluid return is less than the buoyancy type. Gostaresh Shirsazi Tehran Sufa Co. manufactures gate valves in classes 150, 300, 600, and 900 in sizes of 2″ to 42″, relying on its technical and engineering knowledge. At first, these valves are 3D designed, and then the mechanical analysis is performed to evaluate the valve’s performance in working temperature and pressure. This process aims to optimize the valve design according to customer requirements. At last, the prototype is produced using the 3D printer in order to achieve the maximum dimension precision. The dual plate check valves produced in this company are according to API, BS, AWWA, and ASME. In addition to that, at all production steps, comprehensive product inspections are done with high precision by certified quality control inspectors.