PRODUCTS / FLANGES
Flanges
Precision-engineered flanges supplied in a wide range of materials, grades, sizes, pressure classes, face configurations and international standards for industrial piping, equipment connection, fabrication and maintenance requirements.
Flanges
Flanges with the drilling, facing and designation defined
Nemrex Industries supplies industrial flanges for piping systems, equipment connections and fabricated assemblies. The product range includes weld-neck, slip-on, blind, socket-weld, threaded and lap-joint flanges, together with long weld-neck, orifice and other specified configurations.
Material options include stainless steel, carbon steel, alloy steel, duplex and nickel alloys. Flange type, nominal size, pressure-class designation and facing are selected to match the piping specification and mating connection. Standard and drawing-based requirements can be reviewed for maintenance, fabrication and project procurement.
The product families and technical table below provide the principal flange forms, materials, size references, classes and facings. Share the grade, applicable standard, size, class, facing and quantity for a quotation. Include the bore, drilling details and drawing where the requirement differs from a standard configuration.
PRODUCT FORMS
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5 product families
Weld Neck Flanges
Weld Neck Flanges (WNF)
Designed for high-integrity piping connections where strength, stress resistance and reliable load transfer are important, particularly in demanding process and pressure applications.
Long Weld Neck Flanges (LWNF)
Extended-neck flanges used for specialized piping, vessel and high-integrity connections where additional neck length and reinforcement are required.
Slip-On & Socket Weld
Slip-On Flanges (SOF)
Easy-to-fit flanges used for general piping, utility and industrial applications, offering practical installation for a wide range of standard piping systems.
Socket Weld Flanges (SWF)
Forged flanges used with smaller-bore piping where compact, strong connections are required for process, instrumentation and industrial piping applications.
Blind Flanges
Blind Flanges (BLND)
Solid flanges used to close pipe ends, nozzles and equipment connections. They are also used where isolation, inspection or future extension of a piping system is required.
Spectacle Blind Flanges (SBF)
Positive isolation components combining an open and blind position in one assembly, commonly used where clear visual indication of line isolation is required.
Threaded & Lap Joint
Threaded Flanges (THRD)
Threaded connection flanges suitable for applications where welding is not preferred or where installation, maintenance and field assembly require a threaded connection.
Lap Joint Flanges (LJF)
Used with stub ends where frequent dismantling, alignment or maintenance is required. They provide flexibility for systems that need repeated assembly and disassembly.
Special Flange Forms
Ring Type Joint Flanges (RTJ)
High-integrity flanges designed for pressure- and temperature-critical services, using a precision-machined ring groove and metal ring gasket arrangement.
Orifice Flanges (OF)
Flange assemblies used with orifice plates and associated accessories for flow measurement applications, supplied according to line size, pressure class and measurement requirements.
TECHNICAL INFORMATION
Technical Specifications
| Parameter | Details |
|---|---|
| Material | Stainless Steel, Mild / Carbon Steel, Alloy Steel, Duplex & Super Duplex Steel, Nickel & Specialty Nickel Alloys, Titanium & Titanium Alloys, Aluminium and Other Specialty / Exotic Metals. |
| Grades | Stainless Steel: A182 F304, F304L, F316, F316L; Carbon Steel: A105; Alloy Steel: A182 F5, F9, F11, F22, F91; Duplex: F51 / F53; Nickel 200 / 201; Monel 400; Inconel 600 / 625; Hastelloy C-276. |
| Standards | ASME B16.5, ASME B16.47 Series A & B and EN 1092-1; ASTM A105 / A182 Material Specifications; Applicable DIN, BS or JIS Flange Standards. |
| Size Range | 1/2–48 in. nominal size across the applicable flange standards and configurations. |
| Pressure Classes | Class 150, 300, 600, 900, 1500 and 2500; PN designations to the specified standard. |
| Facing | RF (Raised Face), FF (Flat Face), RTJ (Ring Type Joint), Tongue & Groove, and Male & Female. |
APPLICATIONS