UNI Flange

UNI flanges, short for “Unione Italiana di Normazione” flanges, are a type of flange commonly used in Europe, particularly in Italy. These flanges conform to specific standards and specifications set by UNI, the Italian National Standards Institute. UNI flanges are essential components in piping systems and play a crucial role in connecting pipes and other equipment in various industries, including oil and gas, chemical processing, and water distribution.

UNI flanges come in different types and sizes to accommodate various applications and operating conditions. They are available in different materials, such as carbon steel, stainless steel, and alloy steel, to suit the specific needs of different industries and environments. These flanges are designed to withstand high-pressure and high-temperature conditions, making them ideal for demanding applications.

UNI Flange Manufacturer, UNI Flange Supplier, UNI Flange 1300, UNI Flange 1400, UNI Flange 900, UNI Flange Series 900, UNI Flange Adaptor, UNI Flange Joint Restraint, UNI Flanges Manufacturer in Mumbai, India.

Stainless Steel UNI Flange, Ductile Iron UNI Flange, UNI Pipe Flange, UNI 2278 Flange, UNI 2278 Blind Flanges, UNI 2223 Flanges, Carbon Steel UNI Flanges, SS UNI Flanges, UNI Flanges Stockist in India.

The most common types of UNI flanges include welding neck flanges, slip-on flanges, threaded flanges, socket weld flanges, and blind flanges. Each type serves a specific purpose and is chosen based on the requirements of the system and the method of installation. For instance, welding neck flanges are used in high-pressure systems, while slip-on flanges are suitable for low-pressure applications.
One of the key features of UNI flanges is their compatibility with other flanges that adhere to the same UNI standards. This interchangeability simplifies the replacement and maintenance of flanges in existing systems, ensuring seamless operations and minimizing downtime.
Proper installation and maintenance of UNI flanges are crucial to ensure the integrity and safety of the entire piping system. It is essential to follow UNI standards and guidelines for the correct assembly and tightening of flanges to prevent leaks and accidents.

Specification For UNI Flanges

Flange Size Range ½” (15 NB) to 48″ (1200NB), DN10 to DN3000
Flange Type UNI Standard Flanges
Flange Face Types Flat Face Flange (FF), Raised Face Flange (RF), Ring Joint Flange (RTJ), Lap Joint Flange, Male and Female Flange (M&F), Large and Small Tongue-and-Groove Flange (T&G)
Main Types Forged / Threaded / Screwed / Plate
Class / Pressure 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Connection Type Ring Type Joint, Lap-Joint Face, Raised Face, Flat Face, Large Male-Female, Small Male-Female, Large
In Form SORF, WNRF, BLRF, SWRF, LAP Joint, Threaded, Reducing, Spectacle, etc
Usage Oil Field, Offshore, Water System, Shipbuilding, Natural Gas, Electric Power, Pipe Projects etc.
UNI Flange
STOCKIST & SUPPILERS FOR UNI Flanges IN INDIA, CUSTOM SIZES UNI SORF, WNRF, Blind Flanges AS PER CLIENT REQUIREMENT

Ready Stock Of UNI Flanges

  • UNI Tongue & Groove Flanges
  • UNI Series 470 Flanges
  • UNI Series 474 Flanges
  • UNI Series 490 Flanges
  • UNI 2278 Slip On Flange
  • SMO 254 UNI Blind Flange
  • UNI 2223 Weld Neck Flange
  • UNI Socket Weld Flange
  • UNI RTJ Flange
  • UNI Flange Dimensions
  • Stainless Steel UNI 2277 Flanges
  • SS UNI Reducing Flanges
  • UNI 2281 SORTJ Flange
  • Duplex Steel UNI Long Weld Neck Flanges
  • Super Duplex Steel UNI Ring Type Joint Flanges
  • Inconel UNI Flanges
  • Brass UNI 2283 Spectacle Blind Flanges
  • Monel UNI Spacer Ring Flanges
  • UNI 2282 Pipe Flange
  • Duplex Stainless Steel UNI Flat Face Flange
  • UNI 2253 Square Flanges
  • Alloy Steel UNI Raised Face Flanges
  • Nickel Alloy UNI 2254 Orifice Flange
  • UNI Series 400 Flanges
  • UNI Series 1300 Flanges
  • UNI Series 1400 Flanges
  • UNI 6092 Flanges
  • Chrome Moly Steel UNI Flange
  • UNI Large Diameter Flange
  • UNI Industrial Flange
  • Alloy 20 UNI Flange
  • UNI Forged Flanges
  • UNI Slip On Flat Face Flanges
  • UNI 6093 Screwed Flanges
  • Aluminium Bronze UNI BLRTJ Flanges
  • Tin Bronze UNI Nipoflange
  • Phosphor Bronze UNI NPT Threaded Flanges
  • Carbon Steel UNI Female Flanges
  • CS UNI Plate Flange
  • Hastelloy UNI Flangeolet
  • Titanium UNI Paddle Blank and Spacer
  • AS UNI SORF Flanges
  • Super Duplex Stainless Steel UNI Exhaust Flanges
  • UNI SWRTJ Flanges
  • UNI Custom Flanges
  • Copper Nickel UNI Lap Joint Flanges

UNI Flanges Dimension

Standard Class Diameter Bolt Circle Diameter Number of Bolts Bolt Size Diameter of Bolt Hole
AS4087 PN14 95 67 4 M12 14
AS 2129 Flanges Table C 95 67 4 13 14
Table D 95 67 4 13 14
Table E 95 67 4 13 14
Table F 95 67 4 13 14
Table H 114 83 4 16 17
Table J 114 83 4 16 17
ANSI B16.5 ANSI 150 89 60 4 13 16
ANSI 300 95 67 4 13 16
ANSI 600 95 67 4 13 16
ANSI 900 121 83 4 19 22
ANSI 1500 121 83 4 19 22
ISO 7005 (DIN) Flanges PN6 80 55 4 M10 11
PN10 95 65 4 M12 14
PN16 95 65 4 M12 14
PN20 90 60.5 4 M14 16
PN25 95 65 4 M12 14
PN40 95 65 4 M12 14

Size Chart of UNI Flanges

Nominal Pipe Size Outside Diameter of Flanges Thickness of Flanges Diameter of Raised Face Diameter of Hub at Base Length Thru Hub Diameter or Bore Diameter of Hub at Bevel Radius of Fillet Depth of Socket
Welding Neck Slip-On Threaded Socket Lap Joint Slip-on Socket Lap Joint
O Q R X Y Y Y W B H r Z
1/2 3-1/2 7/16 1-3/8 1-3/16 1-7/8 5/8 5/8 .88 .90 .84 1/8 3/8
3/4 3-7/8 1/2 1-11/16 1-1/2 2-1/16 5/8 5/8 1.09 1.11 1.05 1/8 7/16
1 4-1/4 9/16 2 1-15/16 2-3/16 11/16 11/16 1.36 1.38 1.32 1/8 1/2
1-1/4 4-5/8 5/8 2-1/2 2-5/16 2-1/4 13/16 13/16 1.70 1.72 1.66 3/16 9/16
1-1/2 5 11/16 2-7/8 2-9/16 2-7/16 7/8 7/8 1.95 1.97 1.90 1/4 5/8
2 6 3/4 3-5/8 3-1/16 2-1/2 1 1 2.44 2.46 2.38 5/16 11/16
2-1/2 7 7/8 4-1/8 3-9/16 2-3/4 1-1/8 1-1/8 2.94 2.97 2.88 5/16 3/4
3 7-1/2 15/16 5 4-1/4 2-3/4 1-3/16 1-3/16 3.57 3.60 3.50 3/8 13/16
3-1/2 8-1/2 15/16 5-1/2 4-13/16 2-13/16 1-1/4 1-1/4 4.07 4.10 4.00 3/8 7/8
4 9 15/16 6-3/16 5-5/16 3 1-5/16 1-5/16 4.57 4.60 4.50 7/16 15/16
5 10 15/16 7.5/16 6-7/16 3-1/2 1-7/16 1-7/16 5.66 5.69 5.56 7/16 15/16
6 11 1 8-1/2 7-9/16 3-1/2 1-9/16 1-9/16 6.72 6.75 6.63 1/2 1-1/16
8 13-1/2 1-1/8 10-5/8 9-11/16 4 1-3/4 1-3/4 8.72 8.75 8.63 1/2 1-1/4
10 16 1-3/16 12-3/4 12 4 1-15/16 1-15/16 10.88 10.92 10.75 1/2 1-5/16
12 19 1-1/4 15 14-3/8 4-1/2 2-3/16 2-3/16 12.88 12.92 12.75 1/2 1-9/16
14 21 1-3/8 16-1/4 15-3/4 5 2-1/4 3-1/8 14.14 14.18 14.00 1/2 1-5/8
16 23-1/2 1-7/16 18-1/2 18 5 2-1/2 3-7/16 16.16 16.19 16.00 1/2 1-3/4
18 25 1-9/16 21 19-7/8 5-1/2 2-11/16 3-13/16 18.18 18.20 18.00 1/2 1-15/16
20 27-1/2 1-11/16 23 22 5-11/16 2-7/8 4-1/16 20.20 20.25 20.00 1/2 2-1/8
24 32 1-7/8 27-1/4 26-1/8 6 3-1/4 4-3/8 24.25 24.25 24.00 1/2 2-1/2

Weight Chart of UNI Flanges

Pipe Normal Diam. O.D. Flange Thk. Of Flange Min Diam.
of
Hub
Diameter of Raised Face Length Hub.Y Thread Length Diam.
of Bolt
Circle
Diam.
of Bolt
Holes
Number
of Bolts
Diam. of
Bolts
(inch)
KG LB
inch dn O C X G Y T BC BH BN BD
1/2″ 15 89.00 11.20 30.20 35.10 15.70 15.70 60.50 15.80 4 1/2″ 0.4 0.9
3/4″ 20 98.50 12.70 38.10 42.90 15.70 15.70 69.90 15.80 4 1/2″ 0.7 1.5
1″ 25 108.00 14.20 49.30 50.80 17.50 17.50 79.30 15.80 4 1/2″ 0.8 1.8
1-1/4″ 32 117.50 15.70 58.70 63.50 20.60 20.60 88.90 15.80 4 1/2″ 1.2 2.6
1-1/2″ 40 127.00 17.50 65.00 73.20 22.40 22.40 98.60 15.80 4 1/2″ 1.5 3.3
2″ 50 152.50 19.10 77.70 91.90 25.40 25.40 120.70 19.10 4 5/8″ 2.3 5.1
2-1/2″ 65 178.00 22.40 90.40 104.60 28.40 28.40 139.70 19.10 4 5/8″ 3.7 8.1
3″ 80 190.50 23.90 108.00 127.00 30.20 30.20 152.40 19.10 4 5/8″ 4.1 9
3-1/2″ 90 216.00 23.90 122.20 139.70 31.80 31.80 177.80 19.10 8 5/8″ 5.1 11.2
4″ 100 228.50 23.90 134.90 157.20 33.30 33.30 190.50 19.10 8 5/8″ 5.9 13
5″ 125 254.00 23.90 163.60 185.70 36.60 36.60 215.90 22.40 8 3/4″ 7 15.4
6″ 150 279.50 25.40 192.00 215.90 39.60 39.60 241.30 22.40 8 3/4″ 8.4 18.5
8″ 200 343.00 28.40 246.10 269.70 44.50 44.50 298.50 22.40 8 3/4″ 13 28.6
10″ 250 406.50 30.20 304.80 323.90 49.30 49.30 362.00 25.40 12 7/8″ 18 39.5
12″ 300 482.50 31.80 365.30 381.00 55.60 55.60 431.80 25.40 12 7/8″ 29 64
14″ 350 533.50 35.10 400.10 412.80 57.20 57.20 476.30 28.50 12 1″ 39 86
16″ 400 597.00 36.60 457.20 469.90 63.50 63.50 539.80 28.50 16 1″ 47 103
18″ 450 635.00 39.60 505.00 533.40 68.30 68.30 577.90 31.80 16 1 1/8″ 57 126
20″ 500 698.50 42.90 558.80 584.20 73.20 73.20 635.00 31.80 20 1 1/8″ 76 167
24″ 600 813.00 47.80 663.40 692.20 82.60 82.60 749.30 35.10 20 1 1/4″ 97 214

We Serve Application Industry

Flanges applications are as diverse as the industries they serve driven primarily by the aerospace, railway, construction and automotive industries with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.

We Export UNI Flanges Across the Globe

Angola, Austria, Estonia, Switzerland, Algeria, Iran, Sweden, France, Bolivia, Japan, Morocco, Nepal, Poland, India, Namibia, Sri Lanka, United Arab Emirates, Qatar, Pakistan, Afghanistan, Indonesia, Argentina, Azerbaijan, Jordan, Chile, Ecuador, Czech Republic, Bahrain, Israel, Gambia, Croatia, Trinidad & Tobago, New Zealand, Yemen, Portugal, Saudi Arabia, Netherlands, Peru, Nigeria, Ukraine, Hong Kong, Oman, Romania, Colombia, Germany, Singapore, Malaysia, Mongolia, Turkey, Tunisia, Lithuania, Belarus, Macau, Canada, Russia, Chile, Denmark, Bhutan, South Korea, Belgium, Libya, Zimbabwe, Puerto Rico, Bangladesh, Bulgaria, Hungary, Kazakhstan, United Kingdom, Spain, Gabon, Costa Rica, Vietnam, Mexico, Italy, Lebanon, Iraq, Nigeria, Kenya, South Africa, Slovakia, Kuwait, Greece, Norway, Mexico, Brazil, Poland, Tibet, Venezuela, Serbia, Finland, Taiwan, China, Iran, Ghana, Philippines, Thailand, United States, Australia, Egypt, Ireland.

Domestic Supply UNI Flanges

Jamshedpur, Surat, Coimbatore, Secunderabad, Kanpur, Noida, Indore, Thiruvananthapuram, Navi Mumbai, Thane, Gurgaon, Ahmedabad, Rajkot, Kolkata, Jaipur, Vadodara, Baroda, New Delhi, Bhopal, Ludhiana, Pune, Colombo, Visakhapatnam, Bengaluru, Ernakulam, Howrah, Mumbai, Nashik, Chennai, Ranchi, Haryana, Faridabad, Hyderabad, Pimpri-Chinchwad, Chandigarh, Nagpur.
©2022 Kalp Industries, All Rights Reserved. With Love by Rathinfotech