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Based in Cape Town, Cape Town, Themba Nickel Alloys is a reliable manufacturer and supplier of top-notch corrosion-resistant alloy components, including Duplex Steel Check Valves. Renowned for their precision engineering and commitment to international standards, Themba Nickel Alloys provides valves that are built for dependable, long-lasting performance in tough industrial settings. Their Duplex Steel Check Valves boast remarkable strength and corrosion resistance, ensuring effective flow control while preventing backflow in essential piping systems. With a strong focus on quality and timely delivery, Themba Nickel Alloys serves clients both locally and globally across a variety of sectors.
These Duplex Steel Check Valves are made from duplex stainless steel alloys, typically Duplex 2205, which features a well-balanced microstructure of austenite and ferrite. This unique composition grants them high tensile strength, ranging from 620 to 850 MPa, along with excellent resistance to stress corrosion cracking, pitting, and crevice corrosion, particularly in environments rich in chlorides and other aggressive chemicals. They maintain their mechanical integrity even at elevated temperatures and offer great weldability and fatigue resistance. Their sturdy design ensures reliable operation in high-pressure and high-corrosion conditions, making them perfect for critical process control.
| Pressure rating | 150#,300#,600#,800#,1500# |
| Standards | API 600/BS1414,ASME B 16.25, ASME B 16.10, ASME B 16.5, API 598/BS EN 12266-1,ASME B 16.34 |
| End Connection | Flanged End,Screwed [NPT],Screwed Taper,Socket Weld, Screwed Parallel |
| Size | 1/8” to 16” |
| Grade | C | Mn | S | Cr | Si | P | Mo | Ni | Fe | N |
| Duplex Steel Check Valve | 0.030 max | 2.00 max | 0.020 max | 22.0–23.0 | 1.00 max | 0.030 max | 3.0–3.5 | 4.50–6.50 | 63.72 min | 0.14–0.20 |
| Grade | Density (g/cm 3) | Melting Point (°F) | Density (lb/in 3) | Melting Point (°C) |
| Duplex Steel Check Valve | 7.805 | 2588 – 2669 | 0.285 | 1420 – 1465 |
At Themban Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel Check Valve in Cape Town , South Africa, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Cape Town, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Duplex Steel Check Valves are widely used in industries such as offshore oil and gas, chemical processing, marine, desalination, and power generation. They play a crucial role in preventing reverse flow in pipelines that transport aggressive fluids like seawater, acids, and chemical mixtures. By maintaining unidirectional flow, these valves protect pumps, compressors, and other equipment, enhancing both system safety and efficiency. Their impressive corrosion resistance and mechanical strength help lower maintenance costs and extend operational lifespan, making Duplex Steel Check Valves a top choice for many applications.
