-
Email info@krishnaforgeind.com
-
Call Now 7506667575
Weld Neck, Slip On, Blind, Socket Weld & Lap Joint Flanges for Piping Systems
Krishna Forge manufactures high-quality industrial flanges designed for connecting pipes, valves, pumps, and other equipment to form a piping system. Our flanges are precision-engineered to ensure leak-proof connections, easy maintenance, and optimal performance in various industrial applications.
Size Range: 1/2" to 60"
Pressure Class: 150 to 2500
Types: WN, SO, BL, SW, LJ
Face Types: RF, FF, RTJ, Male/Female
Standards: ASME, ANSI, DIN, EN
Materials: CS, SS, Alloy, Duplex
Comprehensive range of flange types for various industrial applications
Long tapered hub for stress distribution, welded to pipe. Ideal for high pressure and temperature applications.
Slips over pipe and welded both inside and outside. Economical and easy to install.
Used to blank off pipeline ends or vessel openings. No bore, solid disk.
Socket for pipe insertion, single fillet weld. Ideal for small diameter high pressure piping.
Used with stub ends, allows easy alignment and rotation. Ideal for systems requiring frequent disassembly.
Threaded bore for screwing onto pipe without welding. Used for low pressure non-critical applications.
Various face types for different sealing requirements
The most common type, with a raised sealing surface. Gasket seating surface is raised above the bolting circle face.
Gasket seating surface is in the same plane as the bolting circle face. Used with flat face mating flanges.
Groove machined into flange face for metal ring gasket. Used for high pressure and temperature applications.
One flange has a raised face (male) and the other has a matching depression (female). Provides better gasket alignment.
One flange has a raised ring (tongue) and the other has a matching groove. Provides excellent sealing.
Various surface finishes (smooth, serrated) for different gasket materials and sealing requirements.
Manufactured in various materials for diverse industrial requirements
| Material Grade | Standards | Applications | Temperature Range | Pressure Class |
|---|---|---|---|---|
| Carbon Steel A105, A350 LF2 |
ASTM A105, A350 ASME B16.5 |
General industrial applications | -20°C to 425°C | 150 to 2500 |
| Stainless Steel 304/304L A182 F304/304L |
ASTM A182 ASME B16.5 |
Food, pharmaceutical, chemical | -196°C to 800°C | 150 to 2500 |
| Stainless Steel 316/316L A182 F316/316L |
ASTM A182 ASME B16.5 |
Marine, chemical, high corrosion | -196°C to 800°C | 150 to 2500 |
| Alloy Steel A182 F5, F9, F11, F22 |
ASTM A182 ASME B16.5 |
High temperature service | Up to 1100°C | 150 to 2500 |
| Duplex Steel A182 F51, F53, F55 |
ASTM A182 ASME B16.5 |
Corrosive environments | -50°C to 300°C | 150 to 2500 |
| Nickel Alloys Inconel, Monel, Hastelloy |
ASTM B564 ASME B16.5 |
Extreme temperature applications | Up to 1200°C | 150 to 2500 |
Proper heat treatment including normalizing, annealing, quenching & tempering for alloy materials.
Complete NDT testing including UT, MT, PT, RT for critical applications and high pressure flanges.
Precision CNC machining for accurate dimensions, face finish, and bolt hole alignment.
Precision manufacturing with quality control at every stage
Quality raw material selection with full traceability and material certification
Precision forging or casting to achieve required mechanical properties and shape
Proper heat treatment for desired mechanical properties and stress relief
Precision CNC machining for accurate dimensions and surface finish
Precision drilling of bolt holes and tapping as per required standards
Proper surface finishing including facing, serration, and coating
Complete dimensional inspection, NDT testing, and pressure testing
Proper marking as per standards and export packaging with protection
Wide range of applications across multiple industries
Pipeline systems, refineries, petrochemical plants, offshore platforms
Thermal power plants, nuclear plants, turbines, boilers
Chemical plants, reactors, distillation columns, process vessels
Marine vessels, offshore structures, naval ships, cargo vessels
Water treatment plants, pumping stations, desalination plants
HVAC systems, plumbing, fire protection, building services
Industrial plants, processing facilities, equipment connections
Waste treatment plants, sewage systems, environmental projects
Contact us for expert consultation and customized manufacturing solutions for your specific piping requirements.
ISO Certified manufacturer of high quality pipe fittings with 15+ years of industry experience.