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Malik Tube Fittings is a well-respected manufacturer and supplier of Hastelloy Syphon and Snubber assemblies based in Riyadh, Saudi Arabia. These essential components are crafted to safeguard sensitive pressure instruments from unexpected pressure surges, pulsations, or high-temperature media by absorbing shocks and enabling safe pressure measurement. Made from high-quality Hastelloy alloys, these products offer remarkable corrosion resistance, mechanical strength, and durability, even in harsh chemical and marine environments. Malik Tube Fittings delivers precision-engineered Hastelloy Syphons and Snubbers that adhere to global standards, ensuring safety, reliability, and a long service life in critical industrial applications.
Hastelloy Syphons and Snubbers are primarily made up of nickel, molybdenum, and chromium, with carefully controlled amounts of tungsten, cobalt, and iron, depending on the specific grade. This unique alloy composition provides exceptional resistance to both oxidizing and reducing agents, as well as pitting, crevice corrosion, and stress cracking. Their strong mechanical properties include high tensile and yield strength, excellent temperature stability, and the ability to function reliably under varying pressures, making them perfect for tough operational conditions where standard materials might not hold up.
| DESIGN STANDARD | DIN 2353/ ISO 8434-1 |
| MATERIAL | DUPLEX 2205 |
| SERIES | LL- LOW PRESSURE , L- MEDIUM PRESSURE, S- HIGH PRESSURE |
| WORKING PRESSURE | 1 BAR TO 700 BAR |
| SIZE RANGE | 6 MM TO 42 MM |
| CONNECTIONS | TUBE TO TUBE , TUBE TO MALE THREAD , TUBE TO FEMALE THREAD , TUBE TO BUTT WELD , TUBE TO SOCKET WELD , TUBE TO JIC 37* , TUBE TO 24* CONE, TUBE TO SWIVEL END , TUBE TO ADJUSTBALE STANDPIPE |
| WELD NIPPLE TO MALE THREAD , WELD NIPPLE TO FEMALE THREAD , WELD NIPPLE TO BUTT WELD , WELD NIPPLE TO SOCKET WELD , WELD NIPPLE TO 24* CONE , WELD NIPPLE TO 37* JIC , WELD NIPPLE TO SWIVEL | |
| BODY TYPE | FORGED, BAR STOCK |
| SURFACE | EXPORT BRIGHT FINISH, SHORT BLASTED FINISH, ELECTROPLATED FINISH |
ELEMENT | DUPLEX 2205 | DUPLEX 31803 |
|---|---|---|
NI | 4.50 – 6.50 | 4.50 – 6.50 |
C | 0.030 max | 0.030 max |
MN | 2.00 max | 2.00 max |
P | 0.030 max | 0.030 max |
S | 0.20 max | 0.020 max |
SI | 1.00 max | 1.00 max |
CR | 21.0 – 23.0 | 22.0 – 23.0 |
MO | 2.50 – 3.50 | 3.0 – 3.5 |
N | 0.08 – 0.20 | 0.14 – 0.20 |
FE | 63.54 min | 63.72 min |
| Grade | YS (MPa) | UTS (MPa) | % Elongation | Hardness(BHN) |
| 31803 | 450 min. | 620 min. | 25 min. | 293 max. |
| 2205 | 450 min. | 655 min. | 25 min. | 293 max. |
| Density (Kg.m-1) | 7810 |
| Magnetic Permeability | <50 |
| Young’s Modulus (N/mm2) | 190 x 10^3 |
| Specific Heat, 20°C (J.Kg-1.°K-1) | 400 |
| Specific Electrical Resistance, 20°C (µO.m) | 0.85 |
| Thermal conductivity, 20°C | 15 |
| Mean coefficient of thermal expansion | 11 x 10^-6 |
| STANDARD | WERKSTOFF NR. | UNS |
|---|---|---|
| Duplex 2205 Plate | 1.4462 / 1.4462 | UNS S31803 / UNS S32205 |
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These Hastelloy Syphons and Snubbers find extensive use in chemical processing plants, petrochemical refineries, marine engineering, offshore platforms, power generation units, pharmaceutical industries, and water treatment systems. They play a crucial role in protecting pressure gauges, transmitters, and other instruments from damage due to sudden pressure spikes or hot media, ensuring accurate readings and prolonging instrument life. With their blend of corrosion resistance, strength, and performance in extreme conditions, they are the go-to choice for industries looking for dependable and low-maintenance pressure protection solutions.
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