Blind Flanges Manufacturer in India

Blind Flanges, Blind Flanges Exporter, Blind Flanges Manufacturer in India, SS Blind Flanges Price, Best Quality Blind Flanges, Carbon Steel Blind Flanges Supplier, Stainless Steel Blind Flanges Stockists in Mumbai, India

Nishra Overseas LLP is one of the top manufacturers, suppliers, and exporters of Blind Flanges/BLRF Flange. Our superior raw materials and services make us the finest. High-quality materials are used to make these BLRF flanges. Pipe system ends are closed with this flange. It is a unique type of circular bar that contains all the necessary bolt holes but no centre hold. Depending on our clients' needs, it comes in a range of sizes, grades, specifications, and thicknesses. To inspect the raw material quality, we have a dedicated department.

Blind Flanges – IBR and Non-IBR, ANSI B16.5 Blind Flanges, SS SOF Flanges Suppliers in India, Carbon Steel Blind – IBR and Non-IBR Flanges Exporter Supplier, EN1092, ASME B16.5 Slip on Flanges Manufacturers.

We manufacturer steel flanges that fulfill all international quality standards, including DIN, EN1092-1, BS4504, ANSI, API, MSS, AWWA, UNI, JIS, SANS, GOST, NFE, ISO, AS, and NS BLRF flanges. We manufacture 75lbs, 150lbs, 300lbs, 600lbs, 900lbs, 1500lbs, 2500lbs, PN6, PN10, PN16, PN25, PN40, PN63, PN64, PN100, GOST 12820 and GOST 12821, PN0.6MPA, PN1.0MPA, PN1.6MPA, PN2.5MPA, PN4.0MPA, SANS1123 or SABS1123, 600kpa, 1000kpa, 1600kpa, 2500kpa, 4000kpa flange ratings as per application or client's requirement. Blind pipe flanges, also known as blanking flanges, are frequently utilized in high pressure applications. In order to stop liquids or gasses from flowing through a pipe system, blind flanges are typically employed to seal the termination. Blind flanges make it simple to access a pipe system after it has been closed.

The standard will use the percentages of carbon, magnesium, nickel, and other elements to ascertain the chemical makeup of pipe flanges during the production process. Petroleum, pipe engineering, water and public works, gas, sugar, paper, and other sectors frequently utilize blind flanges, also known as BLRF flanges. It is also utilized in pumps, valves, and pipelines. This flange is ideal for a wide range of industrial applications.

Before using raw materials to make our products, our company conducts a number of tests to determine their effectiveness. Once this test report is satisfactory, we cut our raw material to size and apply heat treatment. Then we machine our product, perform a final inspection, apply forging treatments, and heat treat it once more before putting it on the market. The best product with the best finishing in our firm is the Blind Flange, often known as the BLRF Flange.

We are a Stainless Steel Blind Flange manufacturer in India, and we offer these Inconel Blind Flange, Hastelloy Blind Flange, Monel Blind Flange, Alloy 20 Blind Flange, Aluminium Blind Flange, Nickel Blind Flange, Duplex Blind Flange, Super Duplex Blind Flange, Incoloy Blind Flange, Copper Blind Flange, Copper Nickel Blind Flange, Brass Blind Flange, 254 Smo Blind Flange, and Titanium Blind Flange in all standards that are common in the world.

Blind Flanges Specification

Dimensions of Blind Flanges

Dimensional Tolerances of Blind Flange ASME B16.5

The types of Blind Flanges

• Flat face flanges are often employed in applications that need a smooth surface contact with the flange.
• Raised Face - The little raised portion around the bore represents the gasket used in this technique.
• Ring Joint Face - This face type is utilized in high-pressure and high-temperature procedures, with a groove for a metal gasket to maintain the seal.
• Tongue and Groove -These flanges have identical grooves and elevated portions. This simplifies installation since the design allows the flanges to self-align and offers a reservoir for gasket adhesive.
• Male and Female - These flanges, like tongue and groove flanges, secure the gasket with a matched pair of grooves and elevated parts. However, unlike tongue and groove flanges, these maintain the gasket on the female face, allowing for more precise positioning and a wider range of gasket materials.

Blind flanges are used in

• Mainly used while creating a piping system
• Testing pipe pressure
• Creating an access point in the piping system
• To temporarily seal a piping system or pressure vessel openings
• Creating a long term seal

Benefits of Using Blind Flanges:

• Versatility: Blind flanges come in a variety of diameters, pressure ratings, and materials to meet a wide range of piping system requirements.
• Leak-Proof Sealing: The solid design provides a complete and trustworthy seal, preventing leaks and preserving system integrity.
• Ease of Use: Blind flanges are easy to install and remove, making them suitable for both temporary and permanent closures.
• Cost-effective: When compared to other closure methods, blind flanges provide a less expensive solution for closing pipe ends.

Why Choose Blind Flange:

• Size and Pressure Rating: Choosing the correct size and pressure rating for your blind flange is critical. The flange size should match the diameter of the pipe being sealed, and the pressure rating should be sufficient to accommodate the system's maximum pressure.
• Material: Blind flanges are commonly made of steel, stainless steel, or alloys, depending on the use. Specific material selection is determined by considerations such as pressure requirements, fluid compatibility, and corrosion resistance.
• Flange Face Type: Blind flanges are available in a variety of face types, including raised face (RF) and flat face. The mating flange with which it will join within the pipe system determines the proper face type.

Blind Flange Applications

Blind Flange Marking

Every Standards have clearly requirements for steel flanges’ marking style, usually the marking words include seller’s Logo, buyer’s Logo (OEM), standard number, flange’s type, flange’s pressure, flange’s size, flange’s material, place of origin, heat number and other words for convenient to trace. If the flanges repaired by welding, it must mark on flanges showing this flange repared by welding. If the flange’s dimensions (OD, ID, PCD, Thickness, Holes number, Holes diameter, Tolerance etc) are different with the normal standard, it also must mark on flanges where it is different with normal ones. Another important place is heat number marking, it is the tracing base for every piece flange, and from the heat number we can trace to the beginning of raw material import.

• The Marking Style for European Standards Flanges, DIN, UNI, EN 1092-1 norms etc
  LOGO, EN 1092-1, TYPE 01, PN16, DN80, 88.9, P265GH, HEAT NUMBER
• The Marking Style for ANSI, ASME Standards Flanges, ANSI, ASME, AWWA norms etc LOGO, ASME B16.5, CLASS 150#, SLIP-ON RF, A105, HEAT NUMBER
• The Marking Style For JIS, KS norms etc, special with KS Mark
  LOGO, JIS B2220, 5K, 80A, SOP, SF440A, HEAT NUMBER, KS MARK
• The Marking Style for BS 4504 norms etc
  LOGO, BS 4504, WELD NECK, PN40, DN80, RSt37.2, HEAT NUMBER
• The Marking Style for GOST 12820, GOST 12821 norms etc
  LOGO, GOST 12820, PN1.6MPA, DN80, Q235B, HEAT NUMBER
• The Marking Style for SABS 1123, SANS 1123 norms etc
  LOGO, SABS 1123, CLASS 4000/3, NB80, A105, HEAT NUMBER

Blind Flange for Shipping, Handling, and Packaging

Carbon Steel Blind Flange and Stainless Steel Socket Weld Flanges are delivered with or without surface protection, as determined by the manufacturer.

The company delivers Blind Flange in standard packaging, without surface protection or end protectors (caps). Special packaging, protective covers, and end protectors (caps) can be agreed upon.