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Blind Flange


A flange is associate extraneous fringe or a at intervals backbone that acts as an ancillary strength for the I-beam or a T-Beam. Moreover, it conjointly acts as an affiliation to a different object gift at the pipe ends, steam cylinder, tram wheels, lens mount, rail car, etc. Within the same means, Flange are widely used as they create the task of collecting and disassembling pipes easier. Actually, a Blind flange acts as a hoop or plate that is beneficial to form a border or to close/cover at the pipe finish after you fasten the pipe. Basically, obtainable in spherical plate having all resembling bolt holes could be a Blind flange.
FittingCart provides an enormous vary of Blind flange that are rigor designed with the simplest raw materials. Funny enough, the shortage of a middle hole is that the reason that the flange is found at the shut off ends at piping systems. From here on, this conjointly offers a simple approach to the inner vessel when it’s sealed and wishes to be opened. Of these outputs are harmonious with customary levels in conjunction with precise quantity and grit. Moreover, our flanges are possible in varied needs and for varied applications. FittingCart conjointly provides Blind flange with a flat face, raised face with a height of 1/6” and RTJ facing.

blind flange


Carbon Steel

ASTM A105, ASTM A105N, GB 20, C22.8

Unstained Steel

ASTM/ASME A403 WP 304-304L-304H-304LN-304N

Alloy Steel

ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911


A403 WP 316-316L-316H-316LN-316N-316Ti

Cold Steel

ASTM/ASME A402 WPL 3-WPL half-dozen

blind flange
Blind Flange

High Performance Steel

ASTM/ASME A860 WPHY 42-46-52-60-65-70





Pressure Classes

150, 300, 400, 600, 900, 1500 and 2500 (B16.5) and categories seventy five, 150, 300, 400, 600, 900 (B16.47)

Note: Though the above-named pressure categories don’t go complementary with the most pressure in psi, thus the most pressure relays on the raw ingredient of projection and temperature.

Standard Division of Blind Projection

  • ASME ANSI B16.5, ASME ANSI B16.47
  • MSS SP 44
  • API 605, API 6L
  • CSA Z245.12
  • EN1092-1, EN1759-1.6. BS1560, BS 4504, BS 10
  • DIN2527
  • AFNOR NF E29-200-1
  • AS2129
  • ISO7005-1
  • UNI 2276, UNI 2277, UNI 2278, UNI 6089, UNI 6090
  • JIS B2220
  • Industrial Processes- Machining and Die shaping

Applications of Blind Flange

  • ASTM A193 B7 STUD & ASTM A193 B16 Stud Bolts square measure utilized in organic compound industries for his or her superb enduringness.
  • Subsea oil and gas, gas injection, cold work and physics, extreme temperature, and nuclear square measure some sectors wherever compact flange square measure helpful.
  • Flange square measure helpful in connecting binding of the ski at the toe or at heel at Ski-Boots and square measure in ISO 5355 normal levels.
  • Blind flange square measure helpful in areas of pipe engineering, public services & water works chiefly to seal the tip of piping systems or pressure vessel openings.
  • Typically used for testing the liquidness in pipe or vessel and in aggressive pressures

FittingCart makes Blind pipe flanges in numerous steel material grades, together with carbon Blind pipe flanges, chrome steel Blind pipe flange, and alloy Blind pipe flange. Additionally thereto, FittingCart conjointly has many alternative Blind pipe flange available and prepared to ship. Moreover, at FittingCart warehouse, we’ve an enormous stock of able to ship Blind pipe flange that embrace ASME B16.47 Series “A” Blind pipe flange, ANSI B16.5 Blind pipe flange, Pressure Vessel weld neck pipe flange and ASME B16.47 Series “B” Blind pipe flange. Also, production of custom weld neck pipe flange is as per customer’s demands.


The Blind Projection Creating Method.

There are a unit 2 freelance seals within the principle style of flange face. To form a plagiary seal, you wish to line stress at the projection heel from seal seating stress. Next, you’ve got to keep up the heel affiliation up to one, eight times the projection rating for pressure valves at traditional temperature. Moreover, the projection is additionally involved with the outer surface face that is for all stress levels. The ninth seal is that the main ring and it gets its energy provided from the elastic hold on energy within the stressed ring.Further, the seal action gets severe once any heel outflow provides internal pressure working on the inner ring. For this reason, you wish to stay the ninth ring within the abstract position within the ring groove, that’s tough to verify whereas installation. The layout style helps interference of chemical element and alternative corrosive agents contact. Hence, preventing projection faces, ring and prolonged bolt’s from corrosion.

Types of Blind Projection
  • Common projection
    These are a unit specifically utilized in plumbing and also are called Surrey or Danzey flange, York flange and Sussex or Essex flange. Actually, Surrey and York flanges work at the highest of predicament tanks whereas Essex projection want a hole to induce it mounted at the tank sides.
  • Warix projection
    This kind of flanges have similar looks as that of York Flanges which you may realize the shower output at the highest of the flange and on the vent aspect. Moreover, these Warix projection even have feminine adapters that facilitate them to suit utterly on a male tank.
  • Closet and Compact projection.
    None apart from closet projection provides the mount during a rest room. On the opposite hand, once a compact flange’s size will increase, it ultimately will increase the pre-occurance, installation and maintenance budgets. Flanges that have giant diameters are a bit robust to figure with and naturally need more room space. Meanwhile, attributable to adjacent courage, complicated style and installment needs, compact flange price is actually laborious for you.
  • Vacuum projection and Microwave RF projection
    The Flange standing at the tube ends that considerably connects vacuum chambers and pumps with one another is that the Vacuum flange. Whereas, in microwave telecommunications, there’s the kind of cable which allows numerous styles of waveguides to attach. Lastly, this can be Microwave RF flange. Similarly, there are many varieties of Microwave RF flange particularly CMB, OPC, PAR, PBJ, CAR, PBR, PDR, UAR, icp and UPX, UBR, UDR, etc.
Why FittingCart?
  • Custom and normal Blind flange offered for Purchase or Rental
  • Offered in line sizes from 1/2″ to 96″
  • Get your flange in ratings from 150# – 2500#
  • Choices embrace Raised face or RTJ seal surfaces
  • Flange square measure customize to your demand of specifications
  • Immediate delivery for in-stock Blind flange
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