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| We manufacture various types of steel flanges, pipe flanges in standard and non-standard specifications as per customers’ drawing. |
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Type of Flanges |
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Slip-on, Weld Neck, Blinds, Long Weld Neck, Socket Welding, Lap Joint, Threaded Flanges |
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Size Range |
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12” to 60”, 305 mm to 1525 mm |
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Pressure Rating |
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150, 300, 400, 600, 900, 1500, 2500 |
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Dimensional Standards |
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ANSI B16.1, ANSI B16.47 Series A, ANSI B16.47 Series B, ANSI B16.5, Boiler Code Flanges, Orifice
Union B16.36, AWWA C207, RTJ, Long Weld Necks, Spectacle Blinds |
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Material Specifications |
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| CARBON STEEL |
ASTM/ASME A/SA105, 266 BS970 - EN8 & EN9
DIN 1.0352;1.0426;1.0436 |
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LOW TEMP. CARBON STEEL |
ASTM/ASME A/SA 350 F1; LF2 ; LF3 |
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ALLOY STEEL |
ASTM/ASME A/SA 182 & 336 F1;F5;F6AF9 F11 F12 F22
DIN 1.5415;1.7335;1.5402;1.7382;1.7266
SAE 8620; EN353; EN354; EN19; EN24 |
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STAINLESS STEEL |
ASTM/ASME A/SA 182 & 336 F 304; F316; F321; F347
ASTM/ASME A/SA 182 & 336 F304; F316L
DIN 1.4307; 1.4301; 1.4541; 1.4550; 1.4941; 1.4404; 1.4571 |
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Application: These are mainly used on heat coupling of pipes in the most difficult cases, i.e., when bending stress on the coupling, due to expansion of section or to other forces, is foreseen. |
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Application: Long Weld Neck Raised Face (LWNRF) flanges are similar to a standard Welding Neck flange, but the "Neck" is considerably longer. This type is often used as a nozzle for a barrel or column. In addition, there are the type LWN Heavy Barrel (HB) and the Equal LWN Barrel (E); they have a different shape and a thicker "Wall". |
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Application: Used in quick assembly to save the cost, these are also used in less strict requirements in terms of length of pipe section. |
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Application: Used in quick assembly to save the cost, these are also used in less strict requirements in terms of length of pipe section.
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Application: These are primarily used when quick assembly and disassembly of pipeline section is required under limited working pressure. |
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Application: These flanges are used in special requirements to work under high temperature and pressure, making sure no welding joint is made at the assembly. |
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Application: A blind flange is a solid disk used to block off a pipeline or to create a stop. The blind flange is machined in the same manner as a regular flange with the mounting holes around the perimeter and the gasket sealing rings machined into the mating surface. The difference is that a blind flange has no opening to allow fluid to pass through. The blind flange can be inserted between two open flanges and used to block off the flow of liquid through a pipeline. |
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