Dual-Plate Check Valve
Product Introduction: The dual-plate check valve is a valve consisting of two hinged plates connected by a spring in the middle. This valve allows the medium to flow freely in one direction, while the plates quickly close under the spring's action when the medium attempts to flow in the reverse direction, preventing backflow. The valve mainly consists of the valve body, valve cover, valve plates (two hinged plates), spring, and valve seat.
A valve that opens or closes automatically depending on the flow and force of the medium to prevent reverse flow is called a check valve (also known as a non-return valve, one-way valve, or backflow valve). The check valve is an automatic valve primarily used to prevent medium backflow, stop the pump and drive motor from reversing, and prevent the container medium from being discharged. The dual-plate check valve is used in pure pipelines, industrial pipelines, environmental protection, water treatment, and high-rise building water supply and drainage systems to prevent medium backflow. The valve has two half-moon-shaped plates with a spring that forces them back into position, and the sealing surface can be widely used with wear-resistant materials or rubber lining on the body surface, ensuring reliable sealing. The check valve is an automatic valve mainly used for one-way flow pipelines to prevent accidents, allowing the medium to flow in only one direction. Typically, this valve operates automatically; it opens under fluid pressure in one direction and closes when the fluid flows in the opposite direction, with the fluid pressure and valve's self-aligning function acting on the valve to block the flow.
Product Features:
- The dual-plate butterfly check valve has a short structure length, which is only 1/4 to 1/8 of the traditional flange check valve.
- It is small in size and lightweight, only 1/4 to 1/20 of the weight of traditional flange check valves.
- The valve plates close quickly, reducing water hammer pressure.
- It can be used in both horizontal and vertical pipelines, making installation convenient.
- The dual-plate butterfly check valve allows easy flow with low fluid resistance.
- It operates sensitively with good sealing performance.
- The short travel of the wafer-type dual-plate valve results in minimal impact.
- It has a simple structure and a pleasing appearance.
- It offers a long service life and high reliability.
Product Parameters:
Main Performance Parameters:
- Nominal Pressure: PN1.0/1.6Mpa
- Applicable Temperature: ≤150℃
- Applicable Medium: Water, Steam, Food, Pharmaceuticals, Oil
- Main Components: Valve Body, Valve Seat, Valve Plates, Shaft, Spring
- Main Materials: Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel
