The urea-grade check valve is specially designed for high-pressure and highly corrosive environments commonly found in urea production processes. Made from corrosion-resistant materials such as duplex stainless steel or special alloys like 316L Mod and 25-22-2, this valve ensures long-term durability and reliability. It features a streamlined flow path and a spring-loaded disc to allow forward flow and prevent backflow, protecting critical equipment from pressure surges and reverse flow damage. The valve is engineered to provide zero leakage sealing, low pressure drop, and smooth operation under harsh chemical conditions. Urea-grade check valves are widely used in fertilizer plants, especially in synthesis and high-pressure carbamate systems, where safety, performance, and resistance to chemical attack are essential.
The urea-grade check valve is specifically engineered for urea synthesis applications, where high pressure, high temperature, and strong corrosive media—such as carbamate solutions—are present. Constructed from urea-grade materials like 316L Mod, 25-22-2, or duplex stainless steels, this valve offers exceptional resistance to corrosion and stress cracking. It features a robust, compact design with a spring-assisted disc mechanism, ensuring fast, tight shutoff and reliable one-way flow. The valve is designed for zero leakage and long service life in aggressive chemical environments.
Size Range: DN15 to DN300 (1/2″ to 12″)
Pressure Rating: PN25 to PN400 / Class 150 to Class 2500
Temperature Range: -40°C to +200°C
Body Materials: 316L Mod, 25-22-2, duplex stainless steel, titanium, or urea-grade special alloys
Seal Type: Metal-to-metal or soft seal based on application
Connection Types: Flanged, butt-welded
Design Standards: ASME, API, GB/T, tailored to urea industry requirements
Urea synthesis and carbamate systems
Fertilizer production plants
High-pressure urea reactors and condensers
Ammonia-urea integration systems
Chemical and petrochemical industries handling corrosive media
This valve plays a critical role in preventing backflow, protecting compressors and sensitive equipment, and ensuring safe, continuous operation in high-demand chemical environments.
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