Unlike raised face flange or ring type flange, this device has a flat surface. The absence of a ridge is what gives it a flatter, smoother design. Because it has a flat surface, the gasket of the Flat Face Flange permits full, more uniform contact with the mating surface. Therefore, it is recommended to use a full face gasket for this type of flange.
The flat surface of this flange is also why it can’t be bolted with a flange that has a raised face. The ASME B16.5 Flat Flange is often used in piping systems whose valves or equipment are made from brittle or ductile material like soft iron. Unlike both ring joint and raised flanges, the Flat Face Weld Neck Flange can not be used for high pressure environments. The design ensures its use in low pressure applications such as water pumps or piping systems. Though its use is limited to low pressure, the materials used in the manufacture of any Alloy steel Flat Face Reducing Flange may have properties that prove useful in corrosive environments. Some environments contain salts of chlorine, the deposition of which could decay alloys due to the gradual depositional stress. This is why using a Stainless Steel Flat Face Flange in different grades will yield a better lifespan for the device. This type of flange is common in areas where bends in the piping systems are absent. The device is uniform in thickness all over, and so it works well in piping systems that have a straight orientation. For industries that need tougher, and harder materials, such as the oil and gas refineries, the economical Carbon Steel Flat Face Blind Flange is a suitable choice.
Specification : | Stainless Steel Flat Face Flanges / Flat Flanges |
Design For Size: | PN, ASA, ASME, DIN, JIS, ANSI, BS, EN |
Connect Type Type: | LMF, RF, FF, RTJ, SMF, LJF. |
ASA Size Chart : | 1/2 Inch - 48 Inch |
Standards : | ASME B16.5, ASME B16.38, EN-1092, AWWA, BS10, DIN, JIS, ASME B16.47 (Series A, Series B), ISO, GOST, PN, UNI, MSS SP44. |
Pressure Rating Table: | Class 150, 300, 600, 900, 1500, 2500 LBS |
Machining Equipment: | Pushing Machine, Bending machine, Press machine, Sand-blasting machine, electric bevelling machine etc |
Production Process: | Heat Treated, Forged and Machined |
Coating Flanges Faces : | Cold and Hot Dip Galvanized, Yellow Transparent, Anti-rust Paint, Oil Black Paint, Zinc Plated |
Flange Face Type | Large Male-Female, Lap-Joint Face, Raised Face, Ring Type Joint, Flat Face, Small Tongue, Small Male-Female, Large Tongue & Groove Flanges manufacturer and Supplier |
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Flanges Marking | All Flanges are marked as follows: Supplier or Manufacturer’s Name, Size, Class, Bore, Dimension, Material, Heat No. Or according to the customer’s request. |
Supplier and Distributors Located in | Noida, Rajkot, Indore, Pimpri Chinchwad, Thiruvananthapuram, Caracas, Mumbai, Karachi, Perth, Jamshedpur, Baroda, Dammam, India, Courbevoie, Bangalore, Gimhae si, Melbourne, Khobar, Vadodara, Nagpur, Ludhiana, London, Coimbatore, Chennai, Ankara, Lagos, Howrah, Ahvaz, New Delhi, Sydney, Ranchi, Istanbul, Kanpur, Gurgaon, Ernakulam, Surat, Port of Spain, Riyadh, Calgary, Janeiro, Santiago, Ahmedabad, Kuwait, Bogota, Manama, Ludhiana, Gujarat, Montreal, Bengaluru, Mexico, Hyderabad, Abu Dhabi, Tehran, Kolkata, Muscat |
Jis Sf440a Sop Loose Flanges Galvanized Steel Flanges
En 1092-1 Carbon Steel P245gh Pn 16 Dn 40 Flat Face Flanges
Sch40s 150lb Flat Face Stainless Steel Flanges
Uns N04400 Nickel Alloy Steel Weld Neck Flat Face (Ff) Flanges
Stainless Steel En1092-1 Type 2 Loose Plate Flanges
Asme B16.5 Astm 304 Flat Face Stainless Steel Flanges
3 Inch Stainless Steel Plate Loose Flanges
Ansi B16.5 Class1500lbs A182 F53 Slip On Flat Face Flanges
Bs4504 Pn10 Pn16 Flat Face Casting Carbon Steel Flange
Astm A105 Flat Face Lap Joint Flanges
Din 2633 Stainless Steel 304 316 Class 150 Loose Flange
20" Ansi Standard Flat Face Blind Ss Flanges
Temperature (F°) | 150 LB | 300 LB | 400 LB | 600 LB | 900 LB | 1500 LB | 2500 LB |
-20 to 100 | 285 | 740 | 985 | 1480 | 2220 | 3705 | 6170 |
750 | 95 | 505 | 675 | 1015 | 1520 | 2535 | 4230 |
200 | 260 | 680 | 905 | 1360 | 2035 | 3395 | 5655 |
400 | 200 | 635 | 845 | 1265 | 1900 | 3170 | 5280 |
500 | 170 | 605 | 805 | 1205 | 1810 | 3015 | 5025 |
600 | 140 | 570 | 755 | 1135 | 1705 | 2840 | 4730 |
650 | 125 | 550 | 730 | 1100 | 1650 | 2745 | 4575 |
300 | 230 | 655 | 870 | 1310 | 1965 | 3270 | 5450 |
700 | 110 | 530 | 710 | 1060 | 1590 | 2655 | 4425 |
800 | 80 | 410 | 550 | 825 | 1235 | 2055 | 3430 |
850 | 65 | 320 | 425 | 640 | 955 | 1595 | 2655 |
1000 | 20 | 85 | 115 | 170 | 255 | 430 | 715 |
900 | 50 | 230 | 305 | 460 | 690 | 1150 | 1915 |
950 | 35 | 135 | 185 | 275 | 410 | 685 | 1145 |
DN | ISO | DIN | D5 | BN | D | b | K | d2 | KG/PCS |
10 | – | 14 | 14.5 | 4 | 90 | 16 | 60 | 14 | 0.7 |
17.2 | – | 17.7 | 4 | 90 | 16 | 60 | 14 | 0.69 | |
20 | – | 25 | 26 | 4 | 105 | 18 | 75 | 14 | 1.06 |
15 | – | 20 | 21 | 4 | 95 | 16 | 65 | 14 | 0.77 |
21.3 | – | 22 | 4 | 95 | 16 | 65 | 14 | 0.77 | |
26.9 | – | 27.6 | 4 | 105 | 18 | 75 | 14 | 1.05 | |
32 | – | 38 | 39 | 4 | 140 | 18 | 100 | 18 | 1.86 |
25 | – | 30 | 31 | 4 | 115 | 18 | 85 | 14 | 1.27 |
33.7 | – | 34.4 | 4 | 115 | 18 | 85 | 14 | 1.25 | |
42.4 | – | 43.1 | 4 | 140 | 18 | 100 | 18 | 1.83 | |
50 | – | 57 | 58.1 | 4 | 165 | 20 | 125 | 18 | 2.78 |
40 | – | 44.5 | 45.5 | 4 | 150 | 18 | 110 | 18 | 2.12 |
48.3 | – | 49 | 4 | 150 | 18 | 110 | 18 | 2.09 | |
60.3 | – | 61.1 | 4 | 165 | 20 | 125 | 18 | 2.74 | |
100 | – | 108 | 109.6 | 8 | 235 | 24 | 190 | 22 | 5.82 |
65 | 76.1 | – | 77.1 | 8 | 185 | 22 | 145 | 18 | 3.48 |
80 | 88.9 | – | 90.3 | 8 | 200 | 24 | 160 | 18 | 4.33 |
139.7 | – | 141.6 | 8 | 270 | 26 | 220 | 26 | 7.6 | |
114.3 | – | 115.9 | 8 | 235 | 24 | 190 | 22 | 5.61 | |
125 | – | 133 | 134.8 | 8 | 270 | 26 | 220 | 26 | 7.91 |
150 | – | 159 | 161.1 | 8 | 300 | 28 | 250 | 26 | 10.12 |
200 | 219.1 | – | 221.8 | 12 | 375 | 34 | 320 | 30 | 16.9 |
168.3 | – | 170.5 | 8 | 300 | 28 | 250 | 26 | 9.58 | |
175 | 193.7 | – | 196.1 | 12 | 350 | 32 | 295 | 30 | 14.45 |
250 | – | 267 | 270.2 | 12 | 450 | 38 | 385 | 33 | 27.28 |
– | 368 | 372.2 | 16 | 580 | 46 | 510 | 36 | 50.24 | |
273 | – | 276.2 | 12 | 450 | 38 | 385 | 33 | 26.51 | |
300 | 323.9 | – | 327.6 | 16 | 515 | 42 | 450 | 33 | 36.38 |
350 | 355.6 | – | 359.7 | 16 | 580 | 46 | 510 | 36 | 52.83 |
400 | 406.4 | – | 411 | 16 | 660 | 50 | 585 | 39 | 74.71 |
– | 419 | 423.7 | 16 | 660 | 50 | 585 | 39 | 71.44 | |
500 | 508 | – | 513.6 | 20 | 755 | 52 | 670 | 42 | 86.87 |
600 | 610 | – | 616.5 | 20 | 890 | 54 | 795 | 48 | 121.84 |
700 | 711 | – | 716 | 24 | 995 | 58 | 900 | 48 | 150.93 |
800 | 813 | – | 818 | 24 | 1140 | 64 | 1030 | 56 | 219.08 |
900 | 914 | – | 920 | 28 | 1250 | 70 | 1140 | 56 | 271.16 |
1000 | 1016 | – | 1022 | 28 | 1360 | 78 | 1250 | 56 | 344.95 |
Dimensions | Base Material |
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ASME B16.5 | ASTM A240 Plate, ASTM A182 Forgings |
ASME B16.47series A & B | ASTM A240 Plate, ASTM A182 Forgings |
BS4504 | ASTM A182 Forgings, BS970 BarASTM A240 Plate, |
BS10 | ASTM A182 Forgings, BS970 BarASTM A240 Plate |
API 605 | ASTM A240 Plate, ASTM A182 Forgings |
EN1092-1 | ASTM A182 Forgings |
Products | We supplied to following Locations |
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Jis Sf440a Sop Loose Flange Galvanized Steel Flanges | United Kingdom -UK, Europe, UAE, Malaysia |
En 1092-1 Carbon Steel P245gh Pn 16 Dn 40 Flat Face Flanges | Nigeria, Australia, Philippines, UK |
Sch40s 150lb Flat Face Stainless Steel Flanges | Malaysia, Hong Kong, Oman, UAE |
Uns N04400 Nickel Alloy Steel Weld Neck Flat Face (Ff) Flanges | Singapore, Bahrain, South Africa |
Stainless Steel En1092-1 Type 2 Loose Plate Flanges | Italy, Iran, Chile, Singapore |
Asme B16.5 Astm 304 Flat Face Stainless Steel Flanges | South Africa, Kuwait, Brazil, Saudi Arabia (KSA) |
3 Inch Stainless Steel Plate Loose Flanges | Turkey, Norway, Malaysia, United Arab Emirates (UAE) |
Ansi B16.5 Class1500lbs A182 F53 Slip On Flat Face Flanges | Dammam -KSA, Belgium, Philippines, Indonesia. |
Bs4504 Pn10 Pn16 Flat Face Casting Carbon Steel Flange | Canada, Malaysia, Philippines, Singapore |
Astm A105 Flat Face Lap Joint Flange | Europe, Romania, Japan, Malaysia |
Din 2633 Stainless Steel 304 316 Class 150 Loose Flange | Colombia, Sweden, China, Malaysia |
20" Ansi Standard Flat Face Blind Ss Flanges | Netherlands, Russia, Dubai, Malaysia |
Cl 150 Rf Flange Asme Weld Neck Flat Face Flanges | Egypt, UK, Mexico, Spain |
Jis Flat Face Flange Dn100 Ss304 10k Sop Flange | Ellington -United States, Poland, Canada, UK |
Ansi Din Standard A105 Carbon Steel Plate Flat Face Pipe Flanges | Thailand, Europe, France, Qatar |
Stainless Steel Lap Joint Loose Flanges | Czechia, Malaysia, Germany, Thailand |
Din 2642 Pn16 2'' Size Loose Flange | Finland, USA, Bangladesh, Malaysia |