Check valves, also known as one-way valves, are a crucial component in many industrial fluid handling systems. These valves allow fluid to flow in one direction but prevent backflow. There are many types of check valves used in different applications, but wafer check valves and flanged check valves are two of the most common types used in industrial settings.
China has become one of the leading manufacturers of high-quality check valves for industrial applications. Chinese manufacturers like China lift check valve produce a wide range of check valves including wafer, double door, and flanged designs. The quality of China-made check valves rivals that of top manufacturers around the world while being available at more competitive prices.
Wafer Check Valves
Wafer check valves from China are sandwiched between two pipeline flanges in a piping system. Wafer double door check valve designs utilize a dual-door configuration with spring-loaded flappers. This allows fluid to flow smoothly in the forward direction while providing a tight seal to prevent backflow.
Wafer check valves are compact and lightweight with a slim body. This makes them ideal for applications where space is limited. The wafer style also allows for easy installation and maintenance since you can access the internals by simply removing the valve from between the pipeline flanges.
Double door wafer check valves are maintenance-free and provide reliable backflow prevention even in low-pressure systems or applications handling contaminated fluids. The dual flappers ensure good sealing even with low backpressure.
Flanged Check Valves
Flange double door check valve designs have flanged ends that bolt directly to mating flanges on the pipeline. This makes them ideal for larger pipe diameters and high-pressure applications. The flanged ends provide a robust, leak-proof seal with the pipe flanges.
Double door flanged check valves provide the same benefits as wafer designs. The dual flappers provide tight sealing and prevent backflow even at low pressures. The flanged design allows these valves to handle higher pressures than wafer types.
Flanged check valves are available in cast iron, carbon steel, stainless steel, alloy steels, and other materials for compatibility with various fluids. Exotic alloys can handle caustic, corrosive, or high-temperature applications.
Benefits of China Check Valves
There are several important benefits of specifying China-made check valves for industrial applications:
High Quality Manufacturing – China has continually improved its manufacturing standards. Check valves from China often meet or exceed the quality levels of American and European brands.
Innovative Designs – Chinese valve manufacturers have invested heavily in R&D. They often improve upon standard check valve designs for better performance.
Cost Savings – Labor and manufacturing costs are lower in China. This allows Chinese suppliers to offer check valves at very competitive pricing.
Custom Options – China makers can provide custom valves with non-standard connections, materials, seals, and other modifications for special applications.
Fast Turnaround – Large manufacturing capabilities allow Chinese factories to fulfill orders faster with short lead times.
Responsive Customer Service – Language barriers are shrinking. Many Chinese suppliers have English-speaking sales engineers to handle technical questions.
With the combination of innovative designs, high manufacturing quality, and low costs, China has become a top source for check valves used in industrial plants, chemical processing, power generation, mining, oil and gas, wastewater treatment, and other fluid handling applications. By specifying China-made check valves, engineers can improve the performance of their piping systems while staying within budget.
The next time you need to source check valves for an industrial project, don’t overlook quality manufacturers based in China. Wafer and flanged check valves from China provide the performance and reliability required for critical applications while delivering substantial cost savings compared to American or European brands. Do your due diligence to verify the quality level and capabilities of the supplier. Then take advantage of China’s manufacturing strengths to get the best check valves to protect your piping systems from reverse flow.