Types of Flanges and Fittings and Their Applications

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Types of Flanges and Fittings and Their Applications Overview
  • Flange Size: ½” to 24”
  • Fittings Size : ½” to 24”
  • Flange Class : 150 - 2500
  • Flange Types : Slip on , Blind
  • Fitting Types : Elbow , Tee , Reducer
  • Standards : ASME B16.9 , ASME B16.47 , ASME B16.5
Types of Flanges
Types of Fittings

 

 

 

Table Of Content

 

Refer Common Types Of Flanges and Fittings Used in Piping Systems

 

Types Of Flanges
Weld Neck Flanges
Weld Neck Flanges
Slip-On Flanges
Slip-On Flanges
Blind Flanges
Blind Flanges
Threaded Flanges
Threaded Flanges
Socket Weld Flanges
Socket Weld Flanges
Lap Joint Flanges
Lap Joint Flanges
Orifice Flanges
Orifice Flanges
Reducing Flanges
Reducing Flanges
Raised Face Flanges
Raised Face Flanges
Flat Face Flanges
Flat Face Flanges
Ring Type Joint (RTJ) Flanges
Ring Type Joint (RTJ) Flanges

 

Types of Fittings
Elbows
Elbows
Tees
Tees
Reducers
Reducers
End Caps
End Caps
Stub End
Stub End
Crosses
Crosses
Couplings
Couplings
Union
Union

 

Find Industrial Flanges and Fittings Application Here


Industrial Flanges and Fittings Applications
  • Power Generation
  • Water and Wastewater Treatment
  • Chemical Processing
  • HVAC
  • Oil and Gas
  • Pharmaceuticals
  • Food and Beverage

 

Understand Material Used For Manufacturing Steel Fittings and Flanges


Material Used For Manufacturing Steel Flanges and Fittings
Materials Used for Flanges Materials Used for Fittings
Carbon Steel Stainless Steel
Alloy Steel Copper 
Stainless Steel Aluminum 
Brass and Bronze PVC and CPVC
Aluminum  Bronze 

 

Check Key Differences Between Flanges vs. Fittings

Differences Between Flanges and Fittings

Flanges

  • Types : Weld Neck, Slip on , Blind
  • Connection Type : Bolted connection
  • Standards : ASME B16.5, B16.47

Fittings

  • Types : Tee , Elbow , Reducer
  • Connection Type : welded , Threaded
  • Standards : ASME B16.9, B16.11

 

Must See Benefits Of Pipe Flanges and Fittings Here

Purpose or Benefits Of Pipe Flanges and Fittings
  • Sealing
  • Weight
  • Connection
  • Flexibility
  • Durability
  • Easy of assembly

 

Flange Face Types
Flange Face Types

 

Flange Dimensions
Flange Dimensions
Standard Class Number of Bolts Diameter Bolt Size Bolt Circle Diameter Diameter of Bolt Hole
AS 4087 PN14 4 95 M12 67 14
ANSI B16.5 ANSI 900 121 19 83 22
ANSI 600 95 13 67 16
ANSI 300 13 16
ANSI 150 89 13 60 16
AS 2129 Table J 114 M16 83 17
Table H 114 M16 83 17
Table F 95 M12 67 14
Table E
Table D
Table C
ISO 7005 (DIN) PN40 95 M12 65 14
PN25 95 M12 65 14
PN20 90 M14 60.5 16
PN6 80 M10 55 11

 

Weld Neck Flanges Pressure Rating
Temperature °F (Fahrenheit) CL 2500 CL1500 CL 900 CL 600 CL 300 CL 150
-20 to 100 6000 3600 2160 1440 720 275
200 5000 3000 1800 1200 600 230
400 4140 2485 1490 995 495 190
700 3540 2125 1275 850 425 110
900 3240 1945 1165 780 390 50
1050 2570 1545 925 615 310 20
1150 1655 995 595 400 200 20
1250 945 565 340 225 115 20
1350 515 310 185 125 60 20
1500 230 135 80 55 25 10

 

Maintenance Tips of Flange
  • Inspect Regularly
  • Replace Damaged Gaskets Promptly
  • Tighten Bolts Properly
  • Clean Surfaces

 

Why Are Flanges and Fitting Important?
Flanges and Fitting Important

 

How to a Select a Fitting and Flange?
  • Pressure and Temperature Requirements
  • Space and Weight Considerations
  • Cost
  • System Integrity and Safety
  • Fluid Properties
  • Installation Requirements

 

Flat Face Flanges Flange End Connection
Flat Face Flanges Flange End Connection

How are the Flanges attached to each other?

Flanges are Attcached or connected to one another using a Bolt.

 

Class 150 Slip-on Flange Dimensions
Class 150 Slip-on Flange Dimensions

Size in Inch Size in mm Outer Dia. Flange Thick. Flange Length RF Height Socket Bore No of Bolts Hole Size
A B D F H
24 600 815 46.1 81 2 616 20 1 3/8
20 500 700 41.3 71 2 513.1 20 1 1/4
16 400 595 35 62 2 410.5 16 1 1/8
12 300 485 30.2 54 2 327 12 1
8 200 345 27 43 2 221.5 8 7/8
6 150 280 23.9 38 2 170.7 8 7/8
4 100 230 22.3 32 2 116.1 8 3/4
3 80 190 22.3 29 2 90.7 4 3/4
2 1/2 65 180 20.7 27 2 74.6 4 3/4
2 50 150 17.5 24 2 61.9 4 3/4
1 1/2 40 125 15.9 21 2 49.5 4 5/8
1 25 110 12.7 16 2 34.5 4 5/8
1/2 15 90 9.6 14 2 22.2 4 5/8

 

Fitting Dimensions
Nominal
Pipe
Sizes		 O.D. 45° Elbows 90° Elbows 180° Returns
(inches)   LR LR SR LR
  (Millimetre) (inch) Center to Face
(inch)		 Radii
(inch)		 Center to Face
(inch)		 Center to Face
(inch)		 Center to Center
(inch)		 Back to face
(inch)
12 323.9 12.750 7 1/2 18 18 12 36 24 3/8
8 219.1 8.625 5 12 12 8 24 16 5/16
5 141.3 5.563 3 1/8 10 7 1/2 5 15 10 5/16
3 1/2 101.6 4.000 2 1/4 7 5 1/4 3 1/2 10 1/2 7 1/4
3 88.9 3.500 2 6 4 1/2 3 9 6 1/4
2 60.3 2.375 1 3/8 4 3 2 6 4 3/16
1 1/4 42.2 1.660 1   1 7/8 1 1/4 3 3/4 2 3/4
1 33.4 1.315 7/8   1 1/2 1 3 2 3/16
1/2 21.3 0.840 5/8   1 1/2 - 2 1 7/8

 

Buttweld Pipe Fittings Weight Chart
DN Schedule 80S Schedule 40S Schedule 10S
Con reducer Ecc reducer Reducing tee Con reducer Ecc reducer Reducing tee Con reducer Ecc reducer Reducing tee
200x100 9.23 9.23 24.18 6.55 6.55 17.98 3.01 3.01 13.46
150x80 5.51 5.51 11.57 3.95 3.95 9.68 1.82 1.82 6.86
100x80 2.33 2.33 6.79 1.74 1.74 4.64 0.87 0.87 3.04
40x.25 0.34 0.34 0.90 0.26 0.26 0.76 0.19 0.19 0.60
80x.50 1.79 1.79 3.91 1.00 1.00 2.91 0.55 0.55 1.56
50x40 0.59 0.59 1.43 0.45 0.45 1.15 0.31 0.31 0.76

 

ButtWeld Elbows Weights
NPS KG LBS
36 481.72 1062
26 249.48 550
26 249.48 550
22 178.72 394
20 145.15 320
16 93.44 206
14 72.57 160
10 39.92 88
6 11.11 24.5
4 4.08 9
3 2.27 5
2 0.73 1.6
1.1/4 0.27 0.6
1 0.18 0.4
1/2 0.08 0.18

 

Blind Flanges Torque Chart
Size in mm Size in Inch Maximum Radial Projection of Imperfections
No Deeper Than the Bottom of the Serrations, mm Deeper Than the Bottom of the Serrations, mm
600 24 12.0 6.0
400 16 10.0 4.5
300 12 8.0 4.5
200 8 8.0 4.5
125 5 6.0 3.0
65 2 1/2 3.0 1.5
32 1 1/4 3.0 1.5
20 3/4 3.0 1.5

 

Fittings Pressure Temperature Ratings
ASME B16.9 Buttweld fittings Pressure-Temperature ratings  (psig)
Temperature Ratings Pressure Class
150 300
1/4 - 1 inch. 1 1/4 - 2 inch. 2 1/2 - 3 inch.
(oC) (oF)
-29 to 66 -20 to 150 300 2000 1500 1000
121 250 225 1575 1200 825
177 350 150 1150 900 650
232 450 - 725 600 475
288 550 - 300 300 300

 

 

Our Products

Following Dimensions Available
  • Pipe acc. to ASTM A999/ A312 from 168.28 to 508.00 mm (NPS 8 -NPS 20) Sch 10S
  • Imperial acc. to ASTM A270 / A269 /A632, DIN 11866 Series C and ASME BPE from 1/8 to 6"
  • Metric acc. to DIN EN 10357 Series A( DIN 11866 Series A ) from 3.00 to 154.00 mm
  • ISO acc. to DIN 11866 Series B and DIN EN ISO 1127 from 13.50 to 219.10 mm (DN 8 - DN 200)

 

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  • +91 2266363372
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