UNS N08020 Check Valve

An UNS N08020 check valve (Alloy 20) is an automatic non-return valve engineered for absolute backflow prevention in aggressive chemical media, specifically hot sulfuric acid. Fabricated from a specialized austenitic nickel-chromium-molybdenum alloy stabilized with niobium, the material resists sensitization and intergranular corrosion during welding. Driven by fluid kinetics, the internal disc or spring-loaded mechanism opens under forward pressure and snaps shut when flow decelerates, protecting upstream pumps. Alloy 20 metallurgy provides elite resistance to chloride-induced stress corrosion cracking, pitting, and crevice attacks. Chemical process engineers and refinery procurement networks can eliminate sulfuric acid corrosion and secure high-integrity non-return protection by importing certified UNS N08020 check valves directly from premier manufacturers in China via our advanced B2B commercial platform.

About 8 results

UNS N08020 Swing Check Valve, Alloy 20, 1/2-2 IN, 150 LB

Alloy 20 Swing Check Valve, UNS N08020, 2 Inch, 150 LB

Alloy 20 Swing Check Valve, UNS N08020, 2 Inch, 150 LB, SW

UNS N08020 Check Valve, Alloy 20, API 602, 2 IN, 150 LB, SW

API 602 Non Return Valve, Alloy 20, UNS N08020, 2 IN, 150 LB

UNS N08020 Swing Check Valve, Alloy 20, 2 Inch, 150 LB, SW

BS 5352 Lift Check Valve, Alloy N08020, 2 Inch, 150 LB, SW

Swing Lift Check Valve, Alloy N08020, 1/2-2 Inch, 800-2500 LB