TYPE OF FLANGES
Slip-On Flange
The flange is slipped over the pipe and then welded both inside and outside to provide sufficient Strength and prevent leakage. This flange is used in preference to weld necks by many users because of its lower cost and the fact that less accuracy is required when cutting pipe to length.
Blind Flanges
Blind Flanges Manufacturer in India. This is a flange without a bore and is used to shut off a piping system or vessel opening. It also permits Easy access to vessels or piping systems for inspection purposes. Blind flange can be supplied with or without hubs at the manufacturers option
Weld-Neck flange
This is designed to be joined to a piping system by buttwelding. It is relatively expensive because of Its long neck, but is preferred for high stress applications. The neck, or hub transmits stresses to the the base of the hub to the wall thickness at the butt weld, provide important reinforcement of the flange. The bore of the flange matches the bore of the pipe, reducing turbulence and erosion.
Threaded Flange
This is similar to a slip-on flange in outline, but the bore is threaded, thus enabling assembly without welding. This obviously limits its application to relatively low pressure piping systems. The flange may be welded around the joint after assembly, but this is not considered a satisfactory method of increasing its applications.
Orifice Flanges
The function of an orifice flange is to provide access to a line for metering of gases or liquids. An orifice plate is clamped between a pair of flanges when installed in a line and the whole assembly is refer to as an orifice flange union. Jack-screws within the assembly facilitate removal of the orifice plate.
Flat Face Flanges
The Flat Face (FF) flange has a gasket surface in the same plane as the bolting circle face. Flat face flanges are never to be bolted to a raised face flange. ASME B31.1 says that when connecting flat face cast iron flanges to carbon steel flanges, the raised face on the carbon steel flange must be removed, and that a full face gasket is required.
Forged Flanges
Forged flanges are used as a connection component for pipes, valves, pumps and other equipment to form a pipework system. They provide easy access for cleaning, inspection, modification or repairs. Flanges are usually welded onto pipes or screwed onto a threaded pipe end and then joined with bolts to make the connection.
Dummy Flange
is one of Leading has been a professionally managed Manufacturing & Exporters of Dummy Flanges India, Dummy Flanges Suppliers India, Dummy Flanges manufacturers India, Dummy Flanges Stockist India, Dummy Flanges supplies India, Dummy Flanges exporters India, Brass Dummy Flanges India, Alloy Steel Dummy Flanges India, Carbon steel Dummy Flanges India, titanium Dummy Flanges India, Dummy Flanges LBS 150, Dummy Flanges LBS 300, Dummy Flanges LBS 600, Dummy Flanges LBS 1500 Manufacturer, Suppliers & Stockist in India
Welded Flanges
The Industry Leader in Carbon Steel Weld Flange and Stainless Steel Weld Flanges,
Class: PN6, PN10, PN16, PN25, PN40, PN64. 150#, 300#, 600#, 900#, 1500#, 2500#.
Specification: Stainless Steel —> A 182 / A 240, SA 182 / SA 240
Carbon Steel —> ASTM A105, ASME A105
ASTM A266 GR.1, GR.2, GR.3, GR.4
ASTM A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2
ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65, F70
Alloy steel —> ASTM / ASME A182 F1 / F5 / F9 / F11 / F22 / F91
Plate Flange
ASME/ ANSI B16.5 Plate Flanges (SLIP-ON) MANUFACTURER IN INDIA, THREADED FORGED FLANGES AVAILABLE IN CARBON, ALLOY, STAINLESS STEEL, MANUFACTURING Plate Flanges (SLIP-ON) IN ALL SIZE. A plate flange is a flat, circular disk that is welded onto the end of a pipe and allows it to be bolted to another pipe. Typically used in fuel and water pipelines, the two flange plates will be bolted together with a gasket in between them. The flange plate will have bolt holes all around the perimeter and will be used to create junctions, tees and joints.
Long Weld Neck Flanges
Get best price here of Long Weld Neck Standard Connection Flanges, flanges, flange, industrial flanges, industrial flange, industrial pipe flanges, industrial fittings, industrial pipe, industrial carbon steel, industrial blind, industrial blinds, industrial, industrial waterworks, industrial stainless steel, industrial steel, industrial weld, industrial forgings, industrial orifice, industrial slip, industrial steel flange, industrial steel flanges, industrial titanium flange, industrial titanium flanges, Long Weld Neck Flanges, Long Weld Neck “LWN”
Ring Joint Flanges
RTJ flanges have grooves cut into their faces which accept steel Ring Gaskets. RTJ flanges seal when tightened bolts compress the gasket between the flanges into the grooves, deforming (or "Coining") the gasket to make Intimate Contact inside the grooves, creating a metal to metal seal. Ring Joint Flanges Facing Dimensions. Nominal. Pipe. Size. Pitch Diam. of Ring and. Groove.
ASME Flange
Pipe flanges that are made to standards called out by ASME B16.5 or ASME B16.47 are typically made from forged materials and have machined surfaces. B16.5 refers to nominal pipe sizes (NPS) from ½" to 24". B16.47 covers NPSs from 26" to 60". Each specification further delineates flanges into pressure classes: 150, 300, 400, 600, 900, 1500 and 2500 for B16.5, and B16.47 delineates its flanges into pressure classes 75, 150, 300, 400, 600, 900.
PTFE Lined Reducing Flange
Our PTFE lined steel straight-bore reducing flanges are used for connecting different size flanges of PTFE lined steel pipe. The PTFE–lined ductile iron reducing flanges are constructed with the major holes as through holes in all sizes. If you are looking for PTFE Lined Reducing Flange manufacturers, PTFE Lined Reducing Flange suppliers, PTFE Lined Reducing Flange producers, PTFE Lined Reducing then is your stop for all type flanges.
Flange Connector
A flange connector is a device that allows the connection of many types of hoses and fittings onto a flanged pipeline. Typically manufactured from stainless or high-carbon steel, a flange connector is connected to a flanged pipe with bolts, and a gasket is sandwiched between the pipe flange and the connector. Common in manufacturing facilities, a flange connector is often used to allow a smaller and more manageable hose to be split off from a large feeder pipeline.
Orifice Flange Assembly
Orifice Plate alongwith Flanges in wide variety of materials for installation in 50 NW and above pipeline sizes are available. The use of the orifice flange assembly negates the requirement for further pipe drilling ensuring the quality of the tapping to ISO 5167-2 and minimizing the errors of the system. Although the weld beads and condition of the upstream piping should be considered when assessing the overall accuracy of the flow meter.
Flanged Pipe Fittings
Flanged pipe and fittings are typical components in rigid piping systems. Such systems are ANSI /AWA Standards particularly suited for above ground installation in the following: water filtration plants, sewage disposal plants, wastewater treatment plants, pumping stations and industrial plants, per AWWA C115/21.1
Socket Flange
Socket-weld pipe flanges are typically used on smaller sizes of high pressure pipes. These pipe flanges are attached by inserting the pipe into the socket end and applying fillet weld around the top. This allows for a smooth bore and better flow of the fluid or gas inside of the pipe. Slip on Pipe flanges with a hub have published specifications that range from 1/2" thru 24". provides Socket Weld pipe flanges in all material grades, specifications and sizes.
Specifications covering the manufacture and dimensions of flanges:
Class: PN6, PN10, PN16, PN25, PN40, PN64. 150#, 300#, 600#, 900#, 1500#, 2500#.
Specification: Stainless Steel —> A 182 / A 240, SA 182 / SA 240
Carbon Steel —> ASTM A105, ASME A105
ASTM A266 GR.1, GR.2, GR.3, GR.4
ASTM A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2
ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65, F70
Alloy steel —> ASTM / ASME A182 F1 / F5 / F9 / F11 / F22 / F91
ASTM SPECIFICATIONS
ASTM specifications regulate approved raw materials for which flanges can be made and specifications .
For stainless flanges are:
ASTM A.182 – Forged or Rolled Alloy Steel Pipe Flanges & Fittings for high temperature service.
ANSI AND MSS SPECIFICATIONS
The standards govern the dimensions and tolerances to which fitting are manufactured:
- ANSI B. 16.5 – Steel Pipe Flanges and Flanged Fittings (½ inch to 24 inch nominal diameter)
- MSS SP.6 – Flange Facings
- MSS SP.25 – Marking of flanges
- MSS SP.39 – Bolts and Nuts for Flanges
- MSS SP.44 – Large Diameter Pipeline Flanges. (Over 24 inch dia)
- API-605 – Large Diameter Flanges for petroleum Usage. (Over 24 inch dia)
The ASME Code is not a standard as such but section VIII provides the procedure for calculating dimensions
For all pressurised vessels flanges.
The following are not flange specifications but they influence the manufacture of forged steel flange
- ANSI B. 31.10 – Code for Pressure Piping
- ANSI B. 31.3 – Petroleum Refinery Piping
- ANSI B. 31.4 – Oil Transportation Piping
- ANSI B. 31.5 – Refrigeration Piping Systems
- ANSI B. 31.7 – Nuclear Power Piping
- ANSI B. 31.8 – Gas Transmission and Distribution Piping systems
- ANSI B. 36.10 – Standard for Wrought Steel pipe
- ANSI B. 36.19 – Standard for Stainless Steel Pipe
- ANSI B. 16.10 – Valve Dimensions Face & End
- ANSI B. 16.11 – Forged Fittings Socket Weld & Threaded