ANSI b16.5 stainless steel Loose Flange

Pipe Flanges and Flanged Fittings produced under standard ANSI b16.5 are manufactured in accordance to several parameters such as materials, dimensions, marking, pressure-temperature ratings, tolerances, testing, and methods of designating openings for pipe flanges and flanged fittings. This being said, it is important to note the limitations of the ANSI b16.5, which takes into account cast or forged materials. Moreover, the standard also includes other details such as requirements and recommendations in terms of the bolting used, flange gaskets, and flange joints. The ANSI b16.5 stainless steel Loose Flange is usually produced with the size ranging between NPS 1/2 through NPS 24 Metric/Inch. A loose flange, or as referred to as a lap joint flange is a two-piece component. The first piece is known as a stub end and the second piece is referred to as a backing flange. Speaking about the first piece or the stub end, which is a sleeve and is shaped similar to a short piece of pipe. This flange has a narrow shoulder on one end, with the other end or the hub that has been butt welded. The dimensions of the narrow shoulder are like the raised face of the flange, whereas the butt weld end of the stub-end is similar to the neck of a weld neck flange,  down to the diameter and thickness. The back face of the hub of the loose flange is produced with a rounded transition that attaches the hub to the sleeve.

View Loose round flange Dimensions, Carbon steel loose flange manufacturer in India

ASME B16.5 Loose flange

ASME B16.5 Loose flange

Stainless Steel Loose flange

Stainless Steel Loose flange

Carbon Steel Loose flange

Carbon Steel Loose flange

Stockist of ANSI b16.5 Loose flange, loose flange connection supplier

The other piece of a DIN Loose Flange is the backing flange, whose dimensions are equal to the other common flanges. However, this kind of flange does not have a raised face, unlike the stub end piece which has a raised face. On one side of the Loose round flange, the backside is constructed with a slight shoulder which is square cut at the centre or pipe hole. On the other hand, the front side has a flat face with a centre hole and an outside fillet to align the fillet of the Stub-end piece of this flange. The flange part of the ANSI b16.5 Loose flange is assembled by having it slipped on to the stub-end piece before the sleeve being welded to the pipe or fitting to form a connection. The carbon steel loose flange itself is neither welded nor is it fixed in any way. Thus gaining the ability to freely to move around for proper alignment with whatever part it has been attached to. These flanges look similar to both a weld neck flange and a loose slip-on flange because the component has been butt welded with the pipes.

Specifications Chart of ASME B16.5 Loose flange

ASME B16.5 Loose flange Size Chart 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000
Loose flange Standards ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1,
API7S-15, API7S-43, API605, EN1092
UNI 6Bar 10Bar 16Bar 25Bar 40Bar
EN 6Bar 10Bar 16Bar 25Bar 40Bar
Loose flange Pressure Rating ANSI Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Loose flange Pressure Calculation in DIN 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
JIS 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
Test Certificates EN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc
Coating Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized
Most common types of Loose flange forged / Threaded / Screwed / Plate
Production technique
  • forged, Heat treated and machined
Connect Type/ Flange Face Type Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, , Groove
Special design

As per your drawing

AS, ANSI, BS, DIN and JIS
15 NB (1/2″) to 200 NB (8″)
Equal and Reducing Configurations

Origin Indian / West Europe / Japan / USA / Korean
Manufacturer of

ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc.
Loose flange: -BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange,
AWWA C207 Flange, GOST Flange, PSI Flange

  • B.S: BS4504 , BS3293, BS1560, BS10
  • AS 2129: Table D; Table E; Table H
  • ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
  • ANSI : ANSI B16.5, ANSI B16.47(API605), MSS SP44, ANSI B16.36, ANSI B16.48
  • ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
  • American standard (ANSI)
  • German (DIN)
  • British standard (BS)
  • DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 Loose flange
  • The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276
Test Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector
Equipment Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc

Ready stock of split loose flange, loose ring type flange in any shape, size and standard

Available Material of Loose flange

Carbon Steel
  • ASTM A105
  • ASME SA105
  • DIN 1.0402
  • DIN 1.0460
  • DIN 1.0619
  • ASTM A105N
  • ASME SA105N
  • ASTM A350 LF2
  • ASME SA350
  • High Yield CS ASTM A694
Stainless Steel
  • ASTM A182 F304
  • ASTM A182 F304L
  • ASTM A182 F316
  • ASTM A182 F316L
  • ASTM A182 F317
  • ASTM A182 F317L
  • ASTM A182 F321
  • ASTM A182 F321H
  • ASTM A182 F347
  • ASTM A182 F347H
Alloy Steel
  • ASTM A182 F5
  • ASTM A182 F9
  • ASTM A182 F11
  • ASTM A182 F22
  • ASTM A182 F91
Inconel
  • Inconel 600
  • Inconel 601
  • Inconel 625
  • Inconel 718
  • Inconel x750
Copper T1, T2, C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10910,C10920, TP1, TP2, C10930, C11000, C11300, C11400, C11500, C11600, C12000,C12200, C12300, TU1, TU2, C12500, C14200, C14420, C14500, C14510, C14520, C14530, C17200, C19200,
C21000, C23000, C26000, C27000, C27400, C28000, C33000, C33200, C37000, C44300, C44400, C44500, C60800, C63020, C68700, C70400, C70600, C70620, C71000, C71500, C71520, C71640, etc
Copper Nickel Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640
Brass 3602 / 2604 / H59 / H62 / etc.
Hastelloy Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X
Monel Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500)
Alloy 20 Carpenter® 20 Alloy, Alloy 20Cb-3
Aluminium 5052 /6061/ 6063 / 2017 / 7075 / etc.
Nickel Nickel 200, Nickel 201
Duplex S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Super Duplex S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Incoloy Incoloy 800, Incoloy 800H, Incoloy 800HT (UNS N08800), Incoloy 825 (UNS N08825)
254 Smo SMO 254/6Mo, UNS S31254, DIN 1.4547
Nimonic Nimonic 75, Nimonic 80A, Nimonic 90
Other material Tin bronze, Alumunum bronze, Lead bronze
Titanium
  • ASTM B381 Titanium Gr. 1
  • ASTM B381 Titanium Gr. 2
  • ASTM B381 Titanium Gr. 4
  • ASTM B381 Titanium Gr. 5
  • ASTM B381 Titanium Gr. 7
Loose flange en 1092-1, Stainless steel loose pipe flanges stockholder in Mumbai, Maharashtra

Dimensions of ANSI B16.5 Loose flange

Drilling
Nominal Bore Loose Flanges Dia.(D) Thick.(E) Dia.(B) Dia.(A) Height(H) Nbr Holes Dia.(C)
1/2″ 90 11.2 30 22.9 16 4 15.87 60.3
3/4″ 100 12.7 38 28.2 16 4 15.87 69.9
1″ 110 14.3 49 34.9 17 4 15.87 79.4
1 1/4″ 115 15.9 59 43.7 21 4 15.87 88.9
1 1/2″ 125 17.5 65 50.0 22 4 15.87 98.4
2″ 150 20.7 78 62.5 25 4 19.05 120.7
2 1/2″ 180 22.3 90 75.4 29 4 19.05 139.7
3″ 190 23.9 108 91.4 30 4 19.05 152.4
3 1/2″ 215 23.9 122 104.1 32 8 19.05 177.8
4″ 230 23.9 135 116.8 33 8 19.05 190.5
5″ 255 23.9 164 144.4 36 8 22.22 215.9
6″ 280 25.4 192 171.4 40 8 22.22 241.3
8″ 345 28.6 246 222.2 44 8 22.22 298.5
10″ 405 30.2 305 277.4 49 12 25.40 362.0
12″ 485 31.8 365 328.2 56 12 25.40 431.8
14″ 535 35.0 400 360.2 79 12 28.57 476.3
16″ 595 36.6 457 411.2 87 16 28.57 539.8
18″ 635 39.7 505 462.3 97 16 31.75 577.9
20″ 700 42.9 559 514.4 103 20 31.75 635.0
24″ 815 47.7 663 616.0 111 20 34.92 749.3
Check Loose flange weight and Loose flange dimensions

Price List of Loose flange

Types of Loose flanges Price Unit
stainless steel Loose flanges class 150 $22.45 NOS
stainless steel Loose flanges class 300 $25.39 NOS
stainless steel Loose flanges class 600 $31.19 NOS
carbon steel Loose flanges class 150 $75.89 NOS
carbon steel Loose flanges class 300 $88.12 NOS
carbon steel Loose flanges class 600 $99.52 NOS
Loose flanges ansi b16 5 class 150 $75.56 NOS
Loose flanges ansi b16 5 class 300 $95.56 NOS