
Loose Flange Introduction
- Sizes: Seamless: 4 to 72″| Welded: 1/2 to 24″
- Nominal Pressure : PN 6 to PN 64
- Finishing : Polished
- Temperature : -40°C to +120°C

ASME B16.5 Loose Flange

Loose Backing Flange

Loose Type Flange
Table of Content
- Loose Flange Specification
- Loose Type Flange Pressure Ratings
- Dimensions of Class 150 Loose Flange
- Class 300 Loose Flanges Sizes
- Loose Flange Available Material
- ASME B16.5 Class 400 Loose Flange Dimension
- Coating Methods For ASTM A182 F304 Pressed Loose Flange
- Dimensional Chart of A350 Lf2 Loose Flanges 600 Lbs
- Stainless Steel Loose Flange 900 Sizes
- Dimensions for ASME B16.5 Loose Flange Class 1500
- Class 300 Duplex 2205 Loose Flange Class 2500 Dimensions
- Loose Flange vs Slip-on Flange
- Applications of Inconel 625 Loose Flange
- Super Duplex 2507 Loose Flange Schedule Chart
- ASTM A105 Loose Flange Weight Chart
- What Causes The DIN Loose Flange to Rusting ?
- How Alloy 825 Loose Puddle Flange is Manufactured ?

Standards of ANSI B16.5 SS Loose Flange
- ANSI B16.5
Loose Flange Sizes
- Sizes: 1/2″ – 24″
- Schedule : SCH 10 – SCH 160, XXS

Material of Loose Toilet Flange
- Carbon Steel
- Alloy Steel
- Stainless Steel
- Nickel Alloy
ASME B16.5 Loose Flange Process
- Forged
- Heat Treated
- Machined
Origin of Loose Plate Flange
- Janpanese
- European
- Korean
- American

DIN Loose Flange Finish
- Serrated
- Mirror
Application of Loose Round flange
- Paper & Pulp Industry
- Oil and Gas Pipeline
- Plumbing
- Power Plant

ANSI B16.5 Loose Flange Testing
- Hardness Test
- Tensile
- Pressure
- PMI

Features of Loose Flange Collar
- Manufacturing process
- High Strength
- Corrosion resistance
- Testing standards
Loose Flange Flanges Face
- RF
- RTJ
- Flat Face
- Groove & Tongue

Benefits of Loose Type Flange
- Flexibility in Alignment
- Easy to Install
- Maintenance

Loose Puddle Flange Packaging
- Bubble Wraps
- Bundled
- Wooden Box
Trusted 304 Stainless Steel Loose Puddle Flange Manufacturer in India With Size 1/2 to 48″
| Nominal Flange Size’s | Dia.(D) | Dia.(B) | Height(H) | Thick.(E) | Dia.(A) | Drilling | ||
|---|---|---|---|---|---|---|---|---|
| Dia.(C) | Holes | Nbr | ||||||
| 1/2″ | 95 | 38 | 22 | 14.3 | 22.9 | 66.7 | 15.87 | 4 |
| 1 1/2″ | 155 | 70 | 30 | 20.7 | 50.0 | 114.3 | 22.22 | 4 |
| 1″ | 125 | 54 | 27 | 17.5 | 34.9 | 88.9 | 19.05 | 4 |
| 16″ | 650 | 483 | 121 | 57.2 | 411.2 | 571.5 | 34.29 | 20 |
| 3/4″ | 115 | 48 | 25 | 15.9 | 28.2 | 82.6 | 19.05 | 4 |
| 1 1/4″ | 135 | 64 | 27 | 19.1 | 43.7 | 98.4 | 19.05 | 4 |
| 2″ | 165 | 84 | 33 | 22.3 | 62.5 | 127.0 | 19.05 | 8 |
| 3″ | 210 | 117 | 43 | 28.6 | 91.4 | 168.3 | 22.22 | 8 |
| 4″ | 255 | 146 | 48 | 31.8 | 116.8 | 200.0 | 22.22 | 8 |
| 6″ | 320 | 206 | 52 | 36.6 | 171.4 | 269.9 | 22.22 | 12 |
| 10″ | 445 | 321 | 95 | 47.7 | 277.4 | 387.4 | 28.57 | 16 |
| 14″ | 585 | 425 | 111 | 54.0 | 360.2 | 514.4 | 31.75 | 20 |
| 18″ | 710 | 533 | 130 | 60.4 | 462.3 | 628.6 | 34.29 | 24 |
| 3 1/2″ | 230 | 133 | 44 | 30.2 | 104.1 | 184.2 | 22.22 | 8 |
| 20″ | 775 | 587 | 140 | 63.5 | 514.4 | 685.8 | 34.29 | 24 |
| 8″ | 380 | 260 | 62 | 41.3 | 222.2 | 330.2 | 25.40 | 12 |
| 5″ | 280 | 178 | 51 | 35.0 | 144.4 | 235.0 | 22.22 | 8 |
| 2 1/2″ | 190 | 100 | 38 | 25.4 | 75.4 | 149.2 | 22.22 | 8 |
| 12″ | 520 | 375 | 102 | 50.8 | 328.2 | 450.8 | 31.75 | 16 |
| 24″ | 915 | 702 | 152 | 69.9 | 616.0 | 812.8 | 41.27 | 24 |
Buy A420 WPL6 Carbon Steel Loose Ring Flange in Mumbai With Pressure Class 150 to 2500# At Fair Price
| Class temps., °F | 300 | 150 | 400 | 900 | 600 | 2500 | 1500 |
|---|---|---|---|---|---|---|---|
| 300 | 655 | 230 | 875 | 1970 | 1315 | 5470 | 3280 |
| 200 | 675 | 260 | 900 | 2025 | 1350 | 5625 | 3375 |
| 400 | 635 | 200 | 845 | 1900 | 1270 | 5280 | 3170 |
| 650 | 535 | 125 | 715 | 1610 | 1075 | 4475 | 2685 |
| -20 to 100 | 740 | 285 | 990 | 2220 | 1480 | 6170 | 3705 |
| 500 | 600 | 170 | 800 | 1795 | 1200 | 4990 | 2995 |
| 700* | 535 | 110 | 710 | 1600 | 1065 | 4440 | 2665 |
| 600 | 550 | 140 | 730 | 1640 | 1095 | 4560 | 2735 |
| 800* | 410 | 80 | 550 | 1235 | 825 | 3430 | 2060 |
| 750* | 505 | 95 | 670 | 1510 | 1010 | 4200 | 2520 |
| 850* | 270 | 65 | 355 | 805 | 535 | 2230 | 1340 |
| 950* | 105 | 35 | 140 | 310 | 205 | 860 | 515 |
| 900* | 170 | 50 | 230 | 515 | 345 | 1430 | 860 |
| 1000* | 50 | 20 | 70 | 155 | 105 | 430 | 260 |
Loose Flange Manufacturer in India, offers a Wide Range of Dimensions

| Drilling | ||||||||
|---|---|---|---|---|---|---|---|---|
| Nominal Bore Loose Flanges | Dia.(D) | Dia.(B) | Height(H) | Thick.(E) | Dia.(A) | Dia.(C) | Holes | Nbr |
| 1/2″ | 90 | 30 | 16 | 11.2 | 22.9 | 60.3 | 15.87 | 4 |
| 16″ | 595 | 457 | 87 | 36.6 | 411.2 | 539.8 | 28.57 | 16 |
| 1 1/2″ | 125 | 65 | 22 | 17.5 | 50.0 | 98.4 | 15.87 | 4 |
| 1″ | 110 | 49 | 17 | 14.3 | 34.9 | 79.4 | 15.87 | 4 |
| 2 1/2″ | 180 | 90 | 29 | 22.3 | 75.4 | 139.7 | 19.05 | 4 |
| 3/4″ | 100 | 38 | 16 | 12.7 | 28.2 | 69.9 | 15.87 | 4 |
| 1 1/4″ | 115 | 59 | 21 | 15.9 | 43.7 | 88.9 | 15.87 | 4 |
| 2″ | 150 | 78 | 25 | 20.7 | 62.5 | 120.7 | 19.05 | 4 |
| 3″ | 190 | 108 | 30 | 23.9 | 91.4 | 152.4 | 19.05 | 4 |
| 4″ | 230 | 135 | 33 | 23.9 | 116.8 | 190.5 | 19.05 | 8 |
| 6″ | 280 | 192 | 40 | 25.4 | 171.4 | 241.3 | 22.22 | 8 |
| 10″ | 405 | 305 | 49 | 30.2 | 277.4 | 362.0 | 25.40 | 12 |
| 14″ | 535 | 400 | 79 | 35.0 | 360.2 | 476.3 | 28.57 | 12 |
| 18″ | 635 | 505 | 97 | 39.7 | 462.3 | 577.9 | 31.75 | 16 |
| 3 1/2″ | 215 | 122 | 32 | 23.9 | 104.1 | 177.8 | 19.05 | 8 |
| 20″ | 700 | 559 | 103 | 42.9 | 514.4 | 635.0 | 31.75 | 20 |
| 8″ | 345 | 246 | 44 | 28.6 | 222.2 | 298.5 | 22.22 | 8 |
| 12″ | 485 | 365 | 56 | 31.8 | 328.2 | 431.8 | 25.40 | 12 |
| 5″ | 255 | 164 | 36 | 23.9 | 144.4 | 215.9 | 22.22 | 8 |
| 24″ | 815 | 663 | 111 | 47.7 | 616.0 | 749.3 | 34.92 | 20 |
Supplier Of Loose Flange With Stub End in 2507 Super Duplex Stainless Steel and Wide Range Of Other Material

Stainless Steel Loose Flange
- ASTM A182 F304 ( 1.4301, V2A )
- 310, 321H, 321, 347, 317, 347H, 904L
- 316 (1.4401, V4A), 304L (1.4307),
- 316LSi (1.4408, CF8M), 304H, 310S,
- 316l (1.4404), 316Ti (1.4571),

Carbon Steel Loose Flange
- ASTM A181
- A516 Gr.70, ASTM A36
- ASTM A105/ ASME SA 105
- A694 F46, F42, F60, F52, F70, F65
- A350 LF 2, A105N

Duplex Steel Loose Flange
- ASTM A182 F51 UNS S31803
- Alloy 2205
- ASME SA 182
- ASTM A182
- ASTM A182 F60 UNS S32205

Super Duplex Loose Flange
- A182 F55 UNS S32760
- ASTM A182 F44 UNS S31254
- A182 F45 UNS S30815
- ASTM A182 F53 UNS S32750
- ASTM A182 F61 UNS S32950

Inconel Loose Flange
- Inconel 601 (UNS N06601)
- Inconel 600 (UNS N06600)
- Inconel 825 (UNS N08825)
- Inconel 625 (UNS N06625)
- Inconel 800 (UNS N08800)

Hastelloy Loose Flange
- SB 366 Hastelloy C22 (N06022)
- Hastelloy B3 (UNS N10675)
- Hastelloy B2(UNS N10665)
- B366 Hastelloy C276 (N10276)
- Hastelloy X(UNS N06002)

Nickel Alloy Loose Flange
- ASTM B162 Nickel 200 (UNS N02200)
- ASTM B564 Nickel 201 (UNS N02201)
- ASTM B160 Alloy 20 (UNS N08020)

Monel Loose Flange
- Monel 500 (UNS N05500)
- ASTM B472 Monel 400 (UNS N04400)
- Monel 401(UNS N04401)

Copper Nickel Loose Flange
- ASTM B151 /ASME SB 151
- Cupro Nickel 70/30(UNS C71500 )
- Copper Nickel 90/10 (UNS C70600 )

Alloy Steel Loose Flange
- F22, F91
- A387 F1
- F5, F9
- ASTM A182
- F11, F12

Copper Loose Flange
- UNS C10200, C10300
- ASTM B61, SB62 C11000
- C12200
- ASTM B152 C10100
- C10800, C12000

Brass Loose Flange
- C28000, C33000
- C26200
- UNS C24000, C23000
- ASTM B16 C27000, C26000
- C44300
| Nominal Size’s | Outer Diameter | Flange Thick. | Lapped Thick. | PCD | Lapped Radius | Bolt Size UNC | Hole Size | No of Bolts | Lapped Thick. | ISO Stud Size | Lapped ID | RF Stud Length | Weight in kg | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | Inch | A | B | C | E | G | D | |||||||
| 15 | 1/2 | 95 | 38 | 22 | 66.7 | 3 | 1/2 | 5/8 | 4 | 14.3 | M14 | 22.9 | 75 | 1.3 |
| 40 | 1 1/2 | 155 | 70 | 32 | 114.3 | 6 | 3/4 | 7/8 | 4 | 22.3 | M20 | 50 | 110 | 3.2 |
| 25 | 1 | 125 | 54 | 27 | 88.9 | 3 | 5/8 | 3/4 | 4 | 17.5 | M16 | 34.9 | 90 | 1.8 |
| 65 | 2 1/2 | 190 | 100 | 41 | 149.2 | 8 | 3/4 | 7/8 | 8 | 28.6 | M20 | 75.4 | 120 | 5.9 |
| 20 | 3/4 | 115 | 48 | 25 | 82.6 | 3 | 5/8 | 3/4 | 4 | 15.9 | M16 | 28.2 | 90 | 1.5 |
| 32 | 1 1/4 | 135 | 64 | 29 | 98.4 | 5 | 5/8 | 3/4 | 4 | 20.7 | M16 | 43.7 | 95 | 2.3 |
| 50 | 2 | 165 | 84 | 37 | 127 | 8 | 5/8 | 3/4 | 8 | 25.4 | M16 | 62.5 | 110 | 4.1 |
| 80 | 3 | 210 | 117 | 46 | 168.3 | 10 | 3/4 | 7/8 | 8 | 31.8 | M20 | 91.4 | 125 | 7.3 |
| 100 | 4 | 255 | 146 | 51 | 200 | 11 | 7/8 | 1 | 8 | 35 | M24 | 116.8 | 140 | 11.8 |
| 150 | 6 | 320 | 206 | 57 | 269.9 | 13 | 7/8 | 1 | 12 | 41.3 | M24 | 171.4 | 150 | 20 |
| 250 | 10 | 445 | 321 | 102 | 387.4 | 13 | 1 1/8 | 1 1/4 | 16 | 54 | M30 | 277.4 | 190 | 42 |
| 350 | 14 | 585 | 425 | 117 | 514.4 | 13 | 1 1/4 | 1 3/8 | 20 | 60.4 | M33 | 360.2 | 210 | 82 |
| 450 | 18 | 710 | 533 | 137 | 628.6 | 13 | 1 3/8 | 1 1/2 | 24 | 66.7 | M36 | 462.3 | 230 | 130 |
| 125 | 5 | 280 | 178 | 54 | 235 | 11 | 7/8 | 1 | 8 | 38.1 | M24 | 144.5 | 145 | 14.1 |
| 500 | 20 | 775 | 587 | 146 | 685.8 | 13 | 1 1/2 | 1 3/4 | 24 | 69.9 | M39 | 514.4 | 240 | 157 |
| 200 | 8 | 380 | 260 | 68 | 330 | 13 | 1 | 1 1/8 | 12 | 47.7 | M27 | 222.2 | 170 | 31 |
| 300 | 12 | 520 | 375 | 108 | 450.8 | 13 | 1 1/4 | 1 3/8 | 16 | 57.2 | M33 | 328.2 | 205 | 59 |
| 400 | 16 | 650 | 483 | 127 | 571.5 | 13 | 1 3/8 | 1 1/2 | 20 | 63.5 | M36 | 411.2 | 220 | 107 |
| 90 | 3 1/2 | 230 | 133 | 49 | 184.2 | 10 | 7/8 | 1 | 8 | 35 | M24 | 104.1 | 140 | 9.6 |
| 600 | 24 | 915 | 702 | 159 | 812.8 | 13 | 1 3/4 | 1 7/8 | 24 | 76.2 | M45 | 616 | 265 | 232 |
Loose Flange Supplier in India, offers Loose Flange with excellent Coating Methods
- Anti Rust Paint
- oil Black paint
- Zinc Plated
- yellow transparent
| Nominal Bore Sizes | Dia.(D) | Dia.(B) | Height(H) | Thick.(E) | Dia.(A) | Drilling | ||
|---|---|---|---|---|---|---|---|---|
| Dia.(C) | Holes | Nbr | ||||||
| 1/2″ | 95 | 38 | 22 | 14.3 | 23.6 | 66.7 | 15.87 | 4 |
| 1″ | 125 | 54 | 27 | 17.5 | 35.8 | 88.9 | 19.05 | 4 |
| 1 1/2″ | 155 | 70 | 32 | 22.3 | 50.6 | 114.3 | 22.22 | 4 |
| 16″ | 685 | 495 | 140 | 76.2 | 411.2 | 603.2 | 41.27 | 20 |
| 3/4″ | 115 | 48 | 25 | 15.9 | 29.0 | 82.6 | 19.05 | 4 |
| 1 1/4″ | 135 | 64 | 29 | 20.7 | 44.4 | 98.4 | 19.05 | 4 |
| 2″ | 165 | 84 | 37 | 25.4 | 63.5 | 127.0 | 19.05 | 8 |
| 3″ | 210 | 117 | 46 | 31.8 | 92.2 | 168.3 | 22.22 | 8 |
| 4″ | 275 | 152 | 54 | 38.1 | 117.6 | 215.9 | 25.40 | 8 |
| 6″ | 355 | 222 | 67 | 47.7 | 171.4 | 292.1 | 28.57 | 12 |
| 10″ | 510 | 343 | 111 | 63.5 | 276.2 | 431.8 | 34.92 | 16 |
| 14″ | 605 | 432 | 127 | 69.9 | 360.4 | 527.0 | 38.10 | 20 |
| 18″ | 745 | 546 | 152 | 82.6 | 462.0 | 6654.0 | 44.45 | 20 |
| 8″ | 420 | 273 | 76 | 55.6 | 222.2 | 349.2 | 31.75 | 12 |
| 2 1/2″ | 190 | 100 | 41 | 28.6 | 76.2 | 149.2 | 22.22 | 8 |
| 12″ | 560 | 400 | 117 | 66.7 | 328.6 | 489.0 | 34.92 | 20 |
| 20″ | 815 | 610 | 165 | 88.9 | 512.8 | 723.9 | 44.45 | 24 |
| 3 1/2″ | 230 | 133 | 49 | 35.0 | 104.9 | 184.2 | 25.40 | 8 |
| 5″ | 330 | 189 | 60 | 44.5 | 144.4 | 266.7 | 28.57 | 8 |
| 24″ | 940 | 718 | 184 | 101.6 | 614.4 | 838.2 | 50.80 | 24 |
| Nominal Sizes | Outer Diameter | Lapped Thick. | No of Bolts | RF Stud Length | PCD | Lapped Radius | Bolt Size UNC | Hole Size | Lapped ID | ISO Stud Size | Lapped Thick. | Flange Thick. | Weight in kg | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MM | Inch | A | C | E | D | G | B | |||||||
| 15 | 1/2 | 120 | 32 | 4 | 110 | 82.6 | 3 | 3/4 | 7/8 | 22.9 | M20 | 22.3 | 38 | 1.8 |
| 40 | 1 1/2 | 180 | 44 | 4 | 140 | 123.8 | 6 | 1 | 1 1/8 | 50 | M27 | 31.8 | 70 | 5.5 |
| 25 | 1 | 150 | 41 | 4 | 125 | 101.6 | 3 | 7/8 | 1 | 34.9 | M24 | 28.6 | 52 | 3.6 |
| 350 | 14 | 640 | 156 | 20 | 275 | 558.8 | 13 | 1 1/2 | 1 5/8 | 360.2 | M39 | 85.8 | 451 | 182 |
| 450 | 18 | 785 | 190 | 20 | 325 | 685.8 | 13 | 1 7/8 | 2 | 462.3 | M48 | 101.6 | 565 | 258 |
| 20 | 3/4 | 130 | 35 | 4 | 115 | 88.9 | 3 | 3/4 | 7/8 | 28.2 | M20 | 25.4 | 44 | 2.3 |
| 32 | 1 1/4 | 160 | 41 | 4 | 125 | 111.1 | 5 | 7/8 | 1 | 43.7 | M24 | 28.6 | 64 | 4.1 |
| 50 | 2 | 215 | 57 | 8 | 145 | 165.1 | 8 | 7/8 | 1 | 62.5 | M24 | 38.1 | 105 | 11.5 |
| 80 | 3 | 240 | 54 | 8 | 145 | 190.5 | 10 | 7/8 | 1 | 91.4 | M24 | 38.1 | 127 | 12 |
| 125 | 5 | 350 | 79 | 8 | 190 | 279.4 | 11 | 1 1/4 | 1 3/8 | 144.4 | M33 | 50.8 | 190 | 38 |
| 200 | 8 | 470 | 114 | 12 | 220 | 393.7 | 13 | 1 3/8 | 1 1/2 | 222.2 | M36 | 63.5 | 298 | 78 |
| 300 | 12 | 610 | 143 | 20 | 255 | 533.4 | 13 | 1 3/8 | 1 1/2 | 328.2 | M36 | 79.4 | 419 | 148 |
| 400 | 16 | 705 | 165 | 20 | 285 | 616 | 13 | 1 5/8 | 1 3/4 | 411.2 | M42 | 88.9 | 508 | 193 |
| 500 | 20 | 855 | 210 | 20 | 350 | 749.3 | 13 | 2 | 2 1/8 | 514.4 | M52 | 108 | 622 | 317 |
| 150 | 6 | 380 | 86 | 12 | 190 | 317.5 | 13 | 1 1/8 | 1 1/4 | 171.4 | M30 | 55.6 | 235 | 50 |
| 250 | 10 | 545 | 127 | 16 | 235 | 469.9 | 13 | 1 3/8 | 1 1/2 | 277.4 | M36 | 69.9 | 368 | 112 |
| 100 | 4 | 290 | 70 | 8 | 170 | 235 | 11 | 1 1/8 | 1 1/4 | 116.8 | M30 | 44.5 | 159 | 24 |
| 65 | 2 1/2 | 245 | 64 | 8 | 160 | 190.5 | 8 | 1 | 1 1/8 | 75.4 | M27 | 41.3 | 124 | 16.5 |
| 600 | 24 | 1040 | 267 | 20 | 440 | 901.7 | 13 | 2 1/2 | 2 5/8 | 616 | M64 | 139.7 | 749 | 608 |
| Nominal Flange Sizes | Outer Diameter | Lapped Thick. | Flange Thick. | PCD | Lapped Radius | Bolt Size UNC | Hole Size | No of Bolts | RF Stud Length | ISO Stud Size | Lapped ID | Lapped Thick. | Weight in kg | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | Inch | A | C | B | E | D | G | |||||||
| 15 | 1/2 | 120 | 32 | 38 | 82.6 | 3 | 3/4 | 7/8 | 4 | 110 | M20 | 22.9 | 22.3 | 1.8 |
| 65 | 2 1/2 | 245 | 64 | 124 | 190.5 | 8 | 1 | 1 1/8 | 8 | 160 | M27 | 75.4 | 41.3 | 16.4 |
| 40 | 1 1/2 | 180 | 44 | 70 | 123.8 | 6 | 1 | 1 1/8 | 4 | 140 | M27 | 50 | 31.8 | 5.5 |
| 25 | 1 | 150 | 41 | 52 | 101.6 | 3 | 7/8 | 1 | 4 | 125 | M24 | 34.9 | 28.6 | 3.7 |
| 450 | 18 | 915 | 276 | 597 | 774.7 | 13 | 2 3/4 | 2 7/8 | 16 | 495 | M72 | 462.3 | 162 | 590 |
| 20 | 3/4 | 130 | 35 | 44 | 88.9 | 3 | 3/4 | 7/8 | 4 | 115 | M20 | 28.2 | 25.4 | 2.3 |
| 32 | 1 1/4 | 160 | 41 | 64 | 111.1 | 5 | 7/8 | 1 | 4 | 125 | M24 | 43.7 | 28.6 | 4.1 |
| 50 | 2 | 215 | 57 | 105 | 165.1 | 8 | 7/8 | 1 | 8 | 145 | M24 | 62.5 | 38.1 | 9.8 |
| 80 | 3 | 265 | 73 | 133 | 203.2 | 10 | 1 1/8 | 1 1/4 | 8 | 180 | M30 | 91.4 | 47.7 | 21.8 |
| 125 | 5 | 375 | 105 | 197 | 292.1 | 11 | 1 1/2 | 1 5/8 | 8 | 250 | M39 | 144.4 | 73.1 | 59 |
| 200 | 8 | 485 | 143 | 292 | 393.7 | 13 | 1 5/8 | 1 3/4 | 12 | 290 | M42 | 222.2 | 92.1 | 118 |
| 300 | 12 | 675 | 219 | 451 | 571.5 | 13 | 2 | 2 1/8 | 16 | 375 | M52 | 328.2 | 123.9 | 264 |
| 400 | 16 | 825 | 260 | 552 | 704.8 | 13 | 2 1/2 | 2 5/8 | 16 | 445 | M64 | 411.2 | 146.1 | 454 |
| 500 | 20 | 985 | 292 | 641 | 831.8 | 13 | 3 | 3 1/8 | 16 | 540 | M76 | 514.4 | 177.8 | 792 |
| 150 | 6 | 395 | 119 | 229 | 317.5 | 13 | 1 3/8 | 1 1/2 | 12 | 260 | M36 | 171.4 | 82.6 | 75 |
| 250 | 10 | 585 | 178 | 368 | 482.6 | 13 | 1 7/8 | 2 | 12 | 335 | M48 | 277.4 | 108 | 198 |
| 100 | 4 | 310 | 90 | 162 | 241.3 | 11 | 1 1/4 | 1 3/8 | 8 | 195 | M33 | 116.8 | 54 | 33 |
| 350 | 14 | 750 | 241 | 495 | 635 | 13 | 2 1/4 | 2 3/8 | 16 | 405 | M56 | 360.2 | 133.4 | 341 |
| 600 | 24 | 1170 | 330 | 762 | 990.6 | 13 | 3 1/2 | 3 5/8 | 16 | 615 | M90 | 616 | 203.2 | 1248 |
Loose Flange Supplier in India, offers a wide Range of Flange Dimension for Class 2500
| Nominal Loose Flange Size | Outer Diameter | No of Bolts | Flange Thick. | RF Stud Length | Lapped Thick. | PCD | Lapped Radius | Bolt Size UNC | Hole Size | Lapped Thick. | ISO Stud Size | Lapped ID | Weight in kg | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | Inch | A | B | C | E | G | D | |||||||
| 15 | 1/2 | 135 | 4 | 43 | 120 | 40 | 88.9 | 3 | 3/4 | 7/8 | 30.2 | M20 | 22.9 | 3.2 |
| 150 | 6 | 485 | 8 | 235 | 345 | 152 | 368.3 | 13 | 2 | 2 1/8 | 108 | M52 | 171.4 | 148 |
| 100 | 4 | 355 | 8 | 165 | 255 | 108 | 273 | 11 | 1 1/2 | 1 5/8 | 76.2 | M39 | 116.8 | 57 |
| 65 | 2 1/2 | 265 | 8 | 114 | 195 | 79 | 196.8 | 8 | 1 1/8 | 1 1/4 | 57.2 | M30 | 75.4 | 23 |
| 20 | 3/4 | 140 | 4 | 51 | 125 | 43 | 95.2 | 3 | 3/4 | 7/8 | 31.8 | M20 | 28.2 | 3.7 |
| 32 | 1 1/4 | 185 | 4 | 73 | 150 | 52 | 130.2 | 5 | 1 | 1 1/8 | 38.1 | M27 | 43.7 | 7.5 |
| 50 | 2 | 235 | 8 | 95 | 180 | 70 | 171.4 | 8 | 1 | 1 1/8 | 50.9 | M27 | 62.5 | 17.5 |
| 80 | 3 | 305 | 8 | 133 | 220 | 92 | 228.6 | 10 | 1 1/4 | 1 3/8 | 66.7 | M33 | 91.4 | 37.8 |
| 125 | 5 | 420 | 8 | 203 | 300 | 130 | 323.8 | 11 | 1 3/4 | 1 7/8 | 92.1 | M45 | 144.4 | 95 |
| 200 | 8 | 550 | 12 | 305 | 380 | 178 | 438.2 | 13 | 2 | 2 1/8 | 127 | M52 | 222.2 | 221 |
| 25 | 1 | 160 | 4 | 57 | 140 | 48 | 108 | 3 | 7/8 | 1 | 35 | M24 | 34.9 | 5 |
| 250 | 10 | 675 | 12 | 375 | 490 | 229 | 539.8 | 13 | 2 1/2 | 2 5/8 | 165.1 | M64 | 277.4 | 425 |
| 40 | 1 1/2 | 205 | 4 | 79 | 170 | 60 | 146 | 6 | 1 1/8 | 1 1/4 | 44.5 | M30 | 50 | 10 |
| 300 | 12 | 760 | 12 | 441 | 540 | 254 | 619.1 | 13 | 2 3/4 | 2 7/8 | 184.2 | M72 | 328.2 | 500 |
Understand Difference Between Loose Flange vs Slip-on Flange Online Here
Loose Flang
- Pressure Range : ≤ PN 25-40
- Reusability : 2 – 3 times
Slip-on Flange
- Pressure Range : ≤ PN 40-50
- Reusability : 1 time
Weekly Delivery Of ASME B16.5 Loose Flange in Below countries
| Export to | Shipping Time in Days | Continent | Port |
|---|---|---|---|
![]() Italy |
Europe | 30 | Genoa port |
![]() Spain |
Europe | 30 | Port of Barcelona |
Monthly Delivery Of SS Loose Flange in Below countries
| Export to | Shipping Time in Days | Continent | Port |
|---|---|---|---|
![]() Malaysia |
Asia | 10 | Kuantan Port |
![]() Vietnam |
Asia | 10 | Cat Lai Port |
![]() Saudi Arabia |
Asia | 7 | Jazan Port |

Offer Hastelloy C276 Lap Joint Flange With Sch 5 to XXS and Various Faces like FF, RF, RTJ etc.
| Nom Pipe Size | OD | Sch 20 | Sch 10 | Sch 30 | Sch 40 | STD Wall | Sch 60 | Sch 80 | EXT Hvy |
|---|---|---|---|---|---|---|---|---|---|
| ½ | 0.84 | …….. | 0.083 | …….. | 0.109 | 0.109 | …….. | 0.147 | 0.147 |
| 1 | 1.315 | …….. | 0.109 | …….. | 0.133 | 0.133 | …….. | 0.179 | 0.179 |
| ¾ | 1.05 | …….. | 0.083 | …….. | 0.113 | 0.113 | …….. | 0.154 | 0.154 |
| 1 ½ | 1.9 | …….. | 0.109 | …….. | 0.145 | 0.145 | …….. | 0.2 | 0.2 |
| 1 ¼ | 1.66 | …….. | 0.109 | …….. | 0.14 | 0.14 | …….. | 0.191 | 0.191 |
| 2 ½ | 2.875 | …….. | 0.12 | …….. | 0.203 | 0.203 | …….. | 0.276 | 0.276 |
| 2 | 2.375 | …….. | 0.109 | …….. | 0.154 | 0.154 | …….. | 0.218 | 0.218 |
| 3 | 3.5 | …….. | 0.12 | …….. | 0.216 | 0.216 | …….. | 0.3 | 0.3 |
| 4 | 4.5 | …….. | 0.12 | …….. | 0.237 | 0.237 | …….. | 0.337 | 0.337 |
| 3 ½ | 4 | …….. | 0.12 | …….. | 0.226 | 0.226 | …….. | 0.318 | 0.318 |
| 5 | 5.563 | …….. | 0.134 | …….. | 0.258 | 0.258 | …….. | 0.375 | 0.375 |
| 8 | 8.625 | 0.25 | 0.148 | 0.277 | 0.322 | 0.322 | 0.406 | 0.5 | 0.5 |
| 6 | 6.625 | …….. | 0.134 | …….. | 0.28 | 0.28 | …….. | 0.432 | 0.432 |
| 10 | 10.75 | 0.25 | 0.165 | 0.307 | 0.365 | 0.365 | 0.5 | 0.594 | 0.5 |
| 14 | 14 | 0.312 | 0.25 | 0.375 | 0.438 | 0.375 | 0.594 | 0.75 | 0.5 |
| 12 | 12.75 | 0.25 | 0.18 | 0.33 | 0.406 | 0.375 | 0.562 | 0.688 | 0.5 |
| 18 | 18 | 0.312 | 0.25 | 0.438 | 0.562 | 0.375 | 0.75 | 0.938 | 0.5 |
| 16 | 16 | 0.312 | 0.25 | 0.375 | 0.5 | 0.375 | 0.656 | 0.844 | 0.5 |
Loose Flange Supplier in India offers an Good Weight Chart for Flanges
| Nominal Size | Diameter | No. of holes | Thk of Flange | Dia of Bolt Holes | Flange I.D | Flange Dia | Dia of Bolt Circle | Approx.Weight | |
|---|---|---|---|---|---|---|---|---|---|
| DN | DIN | ISO | BN | b | d2 | D5 | D | K | Kg |
| 80 | – | 88.9 | 8 | 24 | 18 | 90.3 | 200 | 160 | 4.33 |
| 20 | 25 | – | 4 | 18 | 14 | 26 | 105 | 75 | 1.06 |
| – | 26.9 | 4 | 18 | 14 | 27.6 | 105 | 75 | 1.05 | |
| 10 | 14 | – | 4 | 16 | 14 | 14.5 | 90 | 60 | 0.7 |
| – | 17.2 | 4 | 16 | 14 | 17.7 | 90 | 60 | 0.69 | |
| 50 | 57 | – | 4 | 20 | 18 | 58.1 | 165 | 125 | 2.78 |
| – | 60.3 | 4 | 20 | 18 | 61.1 | 165 | 125 | 2.74 | |
| 32 | 38 | – | 4 | 18 | 18 | 39 | 140 | 100 | 1.86 |
| – | 42.4 | 4 | 18 | 18 | 43.1 | 140 | 100 | 1.83 | |
| 15 | 20 | – | 4 | 16 | 14 | 21 | 95 | 65 | 0.77 |
| – | 21.3 | 4 | 16 | 14 | 22 | 95 | 65 | 0.77 | |
| 25 | 30 | – | 4 | 18 | 14 | 31 | 115 | 85 | 1.27 |
| – | 33.7 | 4 | 18 | 14 | 34.4 | 115 | 85 | 1.25 | |
| 40 | 44.5 | – | 4 | 18 | 18 | 45.5 | 150 | 110 | 2.12 |
| – | 48.3 | 4 | 18 | 18 | 49 | 150 | 110 | 2.09 | |
| 65 | – | 76.1 | 8 | 22 | 18 | 77.1 | 185 | 145 | 3.48 |
| 100 | 108 | – | 8 | 24 | 22 | 109.6 | 235 | 190 | 5.82 |
| – | 114.3 | 8 | 24 | 22 | 115.9 | 235 | 190 | 5.61 | |
| 150 | 159 | – | 8 | 28 | 26 | 161.1 | 300 | 250 | 10.12 |
| – | 168.3 | 8 | 28 | 26 | 170.5 | 300 | 250 | 9.58 | |
| 200 | – | 219.1 | 12 | 34 | 30 | 221.8 | 375 | 320 | 16.9 |
| 300 | – | 323.9 | 16 | 42 | 33 | 327.6 | 515 | 450 | 36.38 |
| 400 | – | 406.4 | 16 | 50 | 39 | 411 | 660 | 585 | 74.71 |
| 419 | – | 16 | 50 | 39 | 423.7 | 660 | 585 | 71.44 | |
| 600 | – | 610 | 20 | 54 | 48 | 616.5 | 890 | 795 | 121.84 |
| 800 | – | 813 | 24 | 64 | 56 | 818 | 1140 | 1030 | 219.08 |
| 125 | 133 | – | 8 | 26 | 26 | 134.8 | 270 | 220 | 7.91 |
| – | 139.7 | 8 | 26 | 26 | 141.6 | 270 | 220 | 7.6 | |
| 900 | – | 914 | 28 | 70 | 56 | 920 | 1250 | 1140 | 271.16 |
| 175 | – | 193.7 | 12 | 32 | 30 | 196.1 | 350 | 295 | 14.45 |
| 350 | – | 355.6 | 16 | 46 | 36 | 359.7 | 580 | 510 | 52.83 |
| 368 | – | 16 | 46 | 36 | 372.2 | 580 | 510 | 50.24 | |
| 700 | – | 711 | 24 | 58 | 48 | 716 | 995 | 900 | 150.93 |
| 500 | – | 508 | 20 | 52 | 42 | 513.6 | 755 | 670 | 86.87 |
| 250 | 267 | – | 12 | 38 | 33 | 270.2 | 450 | 385 | 27.28 |
| – | 273 | 12 | 38 | 33 | 276.2 | 450 | 385 | 26.51 | |
| 1000 | – | 1016 | 28 | 78 | 56 | 1022 | 1360 | 1250 | 344.95 |

- Selection of Material
- Cutting it to Raw Material
- Process of Forging
- Heat Treatment
- Machining Operations
- Bolt Holes Drilling
- Surface Finish
- Stamping & Marking
- Quality & Inspection Control
- Packaging and Dispatch
Locate Available Material from Stock
| Countries | |
|---|---|
| Algeria | Nigeria |
| Tunisia | South Africa |
| Zambia | Ghana |
| Tanzania | Morocco |
| Kenya | Angola |
| Egypt | Ethiopia |





