Wafer type check valves are typically made from the following materials:
1. Cast iron: This is a common and cost-effective material used for wafer type check valve in general industrial applications.
2. Stainless steel: Stainless steel is a popular choice for wafer check valves used in corrosive or high-pressure environments, such as in chemical processing, oil and gas, and other industrial applications.
3. Bronze: Bronze is another material used for wafer check valves, especially in water and HVAC applications where corrosion resistance is important.
4. Aluminum: Lightweight aluminum is sometimes used for wafer check valves, particularly in applications where weight is a concern, such as in aerospace or specialized industrial systems.
5. Plastic (e.g., PVC, CPVC, PVDF): Plastic wafer check valves are common in applications involving corrosive fluids or where a lightweight, cost-effective solution is required, such as in plumbing and HVAC systems.
The choice of material depends on factors such as the fluid being handled, operating pressure and temperature, corrosion resistance requirements, and cost considerations. The valve body and internal components (e.g., disc, spring) may be made from different materials to optimize performance and durability.
