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BLIND FLANGES MANUFACTURERS & SUPPLIERS

Instinox is one of the leading manufacturer, supplier, and exporter of a wide range of Blind flanges all over the world. We are affianced to provide an extensive range of different industrial applications. The range is decided as per the Blind flanges rigorous quality control checks make it superior to other similar products available in the market. Our Firm also specializes in forged Blind flanges manufactured to meet the international standards as well as cater to our customers’ needs of various international industries all our world with or without inspection of the third party. Instinox brings a lot of experience in the industry by serving for over 15 years and also as we have bonds and contracts with many leading companies. The products we provide are of high corrosion resistance, dimensional accuracy, extraordinary quality, durability and smooth surface finish. The Instinox Buying experience is one to remember. This quality makes our customers trust our firm.

ABOUT BLIND FLANGES

Blind flanges are an external or internal ridge or rim used for giving additional strength, stiffness or a supporting area to objects attached to it. Flanges can also be defined as a ring or a collar, usually provided with holes for bolts and screwed or welded over the ends of a tube or a pipe to permit other objects to be attached to it. The blind flange is a common and a popular product in the category of flanges. A blind flanges like other flanges is used to close the ends of piping systems. Blind flanges are pipe flanges used to tape the end of a piping system openings to prevent flow. Blind flanges are commonly used for pressure testing of the pressure flow of liquids or gases through a pipe or vessel.

BLIND FLANGES SPECIFICATIONS

Blind Flange can also be called BLRF FLANGE, BLIND FLANGE R F, BLANK FLANGE, B16.5, ASTM A105, BLFF FLANGE, for better reference.

    • Standard: ANSI, ASME, ASA B16.5
    • Size: 1/2” – 48”
    • Material: ASTM A105, CARBON STEEL
    • Supply Ability: 3000Ton/Month
    • Process: Forged, Forging
    • Packing: Plywood Pallets
    • Payment Terms: T/T, L/C, D/P
    • Monthly output: 3000Ton,
    • Material: carbon steel & Stainless Steel.

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MANUFACTURING STANDARDS

  • ANSI: ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
  • DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673
  • B.S: BS4504, BS4504, BS1560, BS10
  • OTHERS: PLATE, PLATE BLANK

BLIND FLANGE MARKING & PACKING

Blind flanges areas in the custom individually wrapped by hand to ensure that finest quality of the material is maintained and no damage in the last stage of production. Blind flanges come with heat number tractability and brand marking for proper identification of all products.

MATERIAL USED IN MANUFACTURING BLIND FLANGE

  • Stainless steel
  • Aluminum
  • Silicone
  • Cast Iron
  • Titanium
  • Bronze
  • Brass
  • Nickel alloy
  • PVC etc.
  • Polypropylene
  • Nickel alloy
  • Carbon steel

MANUFACTURING OF BLIND FLANGES

The manufacturing process includes six major steps namely:

  • Cutting
  • Open and Closed Die Forging
  • Heat Treatment
  • Conventional and CNC Machining
  • Inspection and Quality Check
  • Packing and Dispatch

Steam hammer technology is used for our manufacture of forging products. It is based on open die forgings and drops hammer closed die forgings. Visual and dimensional checking of raw material is done when, after the steel is received from the manufacturer. The stocks of SS and CS material are kept separately for fast access and simple distinction. The color coding scheme to every unit of raw material is applied as per the color code. The color coding scheme assists, to foot-mark the material during the manufacturing process. The criterion test certificate which is received from suppliers for raw material is studied. Then, physical and chemical testing of each material is done. The various types of raw material are given lot no. and details such as the source of supply heat number, supplier’s certificate number, or a lot number of the company are decided. Internal Granule Corrosion testing and ultrasonic testing is done. Cutting and marking the materials are stamped with lot number for identity proof. The manufacturing division raises appropriation test for material the company wants to use in their process. The material is issued symbolizing the lot number. The required material’s length and weight are verified. The raw materials, which are in the shape of long rods of different diameters, are chopped with the use of huge saw cutting machines. A QC and inspection test is done to overview the flanges. Lastly, the flanges are assorted and packed for dispatch.

APPLICATIONS OF BLIND FLANGES

  • Natural gas companies
  • Chemical industries
  • Petroleum
  • Ship building
  • Paper making
  • Marine projects
  • Metallurgy
  • Electric power boiler etc.

FEATURES OF BLIND FLANGES

  • Blind flanges are supplied with NTO fittings which allow pressure test connections to be fitted.
  • They are used to blank off the ends of valves, pressure vessel openings and ends of pipes.
  • Considering factors like internal pressure and bolt cramping, especially in the larger sizes are the most highly stresses of all types of flanges.
  • They are made to fit standard pipes in all sizes

MARKING & PACKING

All products are given brand marking and heat number traceability and marked with Grade, lot no. , size, degree, and our firm’s trade mark for identification purpose. Products are also packaged to ensure that there is no damage during transit. Standard export packaging is done in wooden cases in case of exports. We also make customized orders as per our client’s requests.

QUALITY ASSURANCE

At Instinox, all fittings and flanges are subject to strict inspection and quality checks at all stages of the manufacturing process, from starting material purchasing to product dispatch. They are visually examined for conformity to ASTM, ASME, MSS, DIN, EN, and JIS codes and standards. At Our requests, official certified agencies are called to witness the material reports, dimension and quality conformity of products.

Test Certificates are given to the manufacturer after a third party inspection under the standards: EN 10204/3.1B, Raw materials Certificate, 100% Radiology Test report Test Certificate.

Blind Flanges

PRODUCTION OF BLIND FLANGES

We have world class machinery for  Blind flanges manufacturers. We have CNC, Lathe Machines as well as punch dyes required for manufacturing of Blind flanges. The forgings are outsourced. We have in house testing facilities like Spectro machine, PMI Machine, Mechanical test, Hardness Test, Ultrasonic Testing, Hydrostatic Testing, Pressure testing, and manual inspection of gauge. Our product range also includes pipe fittings and fasteners which are considered piping accessories for a pipeline set up.The production Raw material is subject to heat treatment for optimum use of dye for processes ahead. Then the flanges are made as per dimensions specified in the ANSI Standards with a hub or without the addition of the hub. Then the Blind flanges are machined and finished followed by the marking process of Blind flanges.

QUALITY CONTROL OF BLIND FLANGES

As Blind flanges manufacturers Instinox is backed by all world class certifications including ISO 9001:2008, ISO 14001:2004, OHSAS 18001:2007 & CE-PED 97/23/EC. We are also members of various renowned agencies and Chambers of Commerce including MASSMA, EEPC, FICCI, FIEO, Indian Merchants Chamber etc. We provide a 1 year product replacement warranty for all pipe fittings exported from our company. We guarantee the quality because 100% pipe fittings manufactured are checked in house for defects in quality and workmanship. Our quality program is a 3 layered independent department check for various factors, including Dimensional Check, Visual Inspection, and Finishing, Burr level, Leakage Test, Pressure Rating test, Chemical inspection and Mechanical properties verification. We are running at full capacity and sometimes outsource our job due to increased work load.

Blind Flanges
Blind Flanges

BLIND FLANGES: BRAND

Blind Flanges suppliers are marked with the standard format of i-FIT-Size-Material-Heat Number. This heat number is 100% traceable to our records and we maintain very strict watch to ensure the authenticity of our brand isn’t duplicated by other brands.

PACKING AND DOCUMENTATION OF BLIND FLANGES

Instinox Blind flanges suppliers are packed in special and branded carton boxes and crate boxes depending on the mode of transport. Blind flanges are wrapped with special thin plastic and beveled ends are protected by plastic caps. They are then packed in the carton or wooden boxes. Socket weld ends are also protected by the caps for protection to the ends and the threads where applicable. It is important that the damages in transit are avoided and pipe fittings reach customers in the same form as it is manufactured. Thus we place lots of emphasis on packing and packaging of the goods. Blind flanges carry various export documents such as the commercial invoice, packing list, Test Reports, HS Code, Country of Origin attested by the chamber of commerce, Fumigation Certificate, Warranty Letter, and Base Material Certificates. Each heat and lot of tube fittings are supplied with a material test certificate as per EN 10204 NACE 3.1 standards indicating the chemical and mechanical properties of the pipe fittings along with pressure rating. We also confirm the guarantee of the fittings supplied as per Purchase order specifications and attest the same in the Material Test Certificate. We also welcome any third party inspection from an agency nominated by the customer to comply with NACE 3.2 Certification if required by the customer at an extra cost. Free samples in Stainless steel and carbon steel can be provided upon request to gauge quality and finishing of our flanges against confirmed receipt of purchase order. We can also send photos upon request.

blind flanges

ONE MORE THING…

Fastest Delivery in the world.

At Instinox we target just one thing, the fastest seamless buying experience for our customers.

Weather small order or big order, we place a lot of emphasis on intelligent procurement modules. Real time inventory is maintained of all the available sizes in house and in the market; so much time is spend on the manufacturing process and less on sourcing the raw material. Standard sizes are available in ready stock in Stainless Steel and Carbon Steel in our replenishing inventory system. All special grades are made to order. We undertake export orders irrespective of small or big quantities. We are the preferred choice of brand for urgent delivery and shut down projects due to our impeccable delivery system module. Added we have excellent storage and warehouse tracking facilities for quick dispatches and real time stock tracking.

Thus we are the perfect choice for requirement of tube fittings manufactured with world class quality and required on urgent delivery basis.

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Brand Name
Instinox
Product Name
Blind Flanges
Price
USD 1-100
Product Availability
Pre-Order Only
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