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Malik Tube Fittings stands out as a top-notch manufacturer and supplier of high-quality Duplex Check Valves in Riyadh, Saudi Arabia. These valves are expertly designed to facilitate fluid flow in one direction while effectively blocking any reverse flow, which is crucial for maintaining safety and efficiency in high-pressure and corrosive settings. Crafted from premium duplex stainless steel, they boast remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking, all while providing outstanding mechanical strength. Malik Tube Fittings delivers precision-engineered Duplex Check Valves that adhere to international standards, ensuring long-lasting, leak-proof, and reliable performance for demanding industrial and marine applications.
Duplex Check Valves feature a well-balanced microstructure of austenite and ferrite, typically enriched with chromium, nickel, molybdenum, and nitrogen. This unique composition grants them exceptional tensile and yield strength, improved fatigue resistance, and excellent corrosion protection, even in harsh, chloride-rich chemical environments. Mechanically, they are built to withstand high-pressure and high-temperature operations with minimal wear, ensuring consistent and reliable flow control. Their sturdy construction and precise sealing components promise a dependable service life in critical process systems.
| INSTRUMENTATION VALVES MATERIAL | DUPLEX 2205 |
| INSTRUMENTATION VALVES SIZE | 6 MM TO 50 MM and 1/8″ TO 2″ |
| PATTERN FLOW | STRAIGHT |
| THREADS | BSPP, NPT, METRIC, BSPT,UNF, JIC |
| INSTRUMENTATION VALVES ORIFICE SIZE | 2 MM – 40 MM |
| CONNECTION | SOCKET WELD END, TUBE END, THREADED, FLANGE END |
| INSTRUMENTATION VALVES BODY SHAPE | HEXAGON |
| EQUIVALENT BRANDS | PARKER, SWAGELOK, DK-LOK, STAUFF, OLIVER VALVES, HAMLET, HOKE |
| CRACKING PRESSURE | 0.5 BAR |
| TYPE | SPRING TYPE, POPPET TYPE |
| RATING PRESSURE | 20000 PSI, 1500 PSI, 10000 PSI, 3000 PSI, 6000 PSI, 15,000 PSI |
| MEDIA TEMPERATURE | (-50* C – 350*C ) AS PER PRESSURE RANGE |
| MEDIA | SEA WATER , HYDRAULIC AIR, OIL, GAS, WATER, HOT WATER , STEAM, COLD WATER , CHEMICAL |
| BODY TYPE | FORGED, BAR STOCK |
| INSTRUMENTATION VALVES PACKING DETAILS | WOODEN PALLET, BOX PACKING |
| ELEMENT | DUPLEX 31803 | DUPLEX 2205 |
|---|---|---|
| C | 0.030 max | 0.030 max |
| NI | 4.50 – 6.50 | 4.50 – 6.50 |
| MN | 2.00 max | 2.00 max |
| S | 0.020 max | 0.20 max |
| FE | 63.72 min | 63.54 min |
| P | 0.030 max | 0.030 max |
| SI | 1.00 max | 1.00 max |
| MO | 3.0 – 3.5 | 2.50 – 3.50 |
| CR | 22.0 – 23.0 | 21.0 – 23.0 |
| N | 0.14 – 0.20 | 0.08 – 0.20 |
| Grade | Hardness(BHN) | UTS (MPa) | YS (MPa) | % Elongation |
| 2205 | 293 max. | 655 min. | 450 min. | 25 min. |
| 31803 | 293 max. | 620 min. | 450 min. | 25 min. |
At Malik Tube Fittings, we are the leading supplier, manufacturer, and exporter of Duplex Check Valves in Riyadh, Saudi Arabia. Our advanced manufacturing facilities, strategically located in the Saudi Arabia, allow us to deliver high-quality, customized solutions tailored to your specific needs. With an extensive inventory of over 16,000 tons of premium-grade duplex stainless steel materials, we are fully equipped to meet your demands efficiently. Our commitment to excellence and efficiency ensures that we consistently maintain sufficient stock to support your business requirements and provide reliable performance in critical applications.
| STANDARD | UNS | WERKSTOFF NR. |
|---|---|---|
| Duplex 2205 | UNS S31803 / UNS S32205 | 1.4462 / 1.4462 |
These Duplex Check Valves find extensive use in oil and gas processing, chemical plants, desalination units, offshore platforms, marine systems, and power generation facilities. They are particularly suited for pipelines that transport seawater, chemicals, or other corrosive fluids, where preventing backflow is vital for safety and equipment protection. With their robust design, corrosion resistance, and maintenance-free operation, they are the go-to choice for industries that demand reliable one-way flow control. These valves ensure operational safety, efficiency, and durability in challenging conditions, promoting smooth process performance and extending system life.
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Duplex Check Valves are widely used in various industries due to their exceptional strength and corrosion resistance. In the oil and gas sector, they prevent backflow and maintain system integrity in pipelines and processing plants. In chemical processing, these valves handle aggressive substances, ensuring safe flow control. They are also utilized in marine applications, providing reliable performance in seawater systems. Additionally, Duplex Check Valves find applications in water treatment facilities, power generation, and other high-pressure environments, where durability and reliability are essential for operational efficiency and safety.
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