Stainless Steel Blind Flange Manufacturer

Stainless Steel Blind Flange Manufacturer

Standard Specification Of SS Blind Flanges And ASTM A182 F304 Blind Flange Price List/ Dimensions Class 150 To 2500.


The primary purpose behind using a blind flange is to block off the section of a pipe or nozzle that is not in use. The Stainless Steel Blind Flange helps in terminating the end of a piping system. The SS Blind Flanges consist of holes around its perimeter, and the gasket which seals the rings is machined into the mating surface. We manufacture ASTM A182 F304 Blind Flange, which comes in many shapes and dimensions according to the client’s particular requirements. The ASME B16.5 Blind Flange follows the industrial standard of quality and safety, and these are available in size NPS ½” to NPS 24. It is frequently produced from forged, cast, or plate material.

The ANSI B16.5 Blind (BLRF) Flange we manufacture is well suited for environments with high-temperature pressure. We also specialize in EN 1092-1 Type 05 Blind Flange production, which is widely used in various industries, including gas, oil, petrochemical, etc. One of the best properties of these blind flanges is that they can be assembled and disassembled quite easily. We are one of the top manufacturers and stockists of Stainless Steel 316 Blind Flange, which has austenitic stainless steel along with chromium, nickel, and molybdenum. We also have a huge ASTM A182 SS BLRF Flange stock- these are all made of high-quality raw material using the latest machinery to give our clients the best-finished products.


Stainless Steel Blind Flange
SS Blind Flange Price List
ASTM A182 F304/ F316 Blind Flange
ASME B16.5 Blind Flange Dimensions


ASTM A182 Stainless Steel Blind Flange

Table of Content



SS Blind Flange Specification

Specification Chart Of : tainless Steel Blind Flange
ASTM/ ASME Standard Materials Cast Iron, Inconel, Mild Steel, Stainless Steel, Alloy Steel, Carbon Steel, Duplex Steel & Super Duplex Steel, Hastelloy, Copper Nickel, Wrought Iron.
Thickness Calculation AS Per ASME NPS ≤ 18
Length Chart (1/2") To (48")
Manufacturing Process For Flanges
  • Machined/ Forged/ Heat Treated
High Temperature Chart Above 200° Celsius (400°F) For 150 Class Or Above 400° Celsius (750°F)
JIS Standards Manufacturer 5K, 10K, 40K, 16K 20K 30K, 63K
Minimum Size Of Bore Diameter NPS ≤ 10
Dimensions ASME B16.36 Flange, DIN Flange, AWWA C207 Flange, B16.47 Series A & B Flange, BS1560-3.1 Flange, EN-1092 Flange, ASME B16.48 Flange, API605 Flange, BS4504 Flange, EN1092 Flange, UNI Flange, ISO Flange, MSS S44 Flange, IS 2062 Flange, ISO70051 Flange, API Flange, API7S-43 Flange, API7S-15 Flange
Pressure Test 150 LB To 2500 LB
Different Face Type Groove And Small Tongue Groove, RTJ, Flat Face, Lap-Joint Face, Raised Face, Large Tongue & Large Male-Female And Small Male-Female
Accept All Small And Large Order Of Type Blind Flange, Threaded Flange, Lap Joint Flange, Slip-On Flange, Socket-Weld Flange, Weld Neck Flange
Application Use In Various Industry Power Plants Industry
Food Processing And Manufacturing
Waterworks Systems
Nuclear Power Application
Municipal Pipe Systems
Fossil Fuel Power Plants
Oil And Gas Industry
Flange Making Format Forged/ Plate/ Threaded
Exporter Of Ghaziabad, Mysuru, Delhi, Amsterdam, Chicago, Tehran, Sydney, Melbourne, Lumpur, Indore, Al Panipat, Dhabi, Kolkata, Paris, Bhopal, Ho Ambernath, Kalyan, Singapore, Beijing, Sao Baku, Bogota, Jakarta, Guwahati, Ankleshwar, Vung Vadodara, Perth, Paulo, Alam, Riyadh, Batam, Rajkot, Al Secunderabad, New Quezon Pimpri-Chinchwad, Doha, Bengaluru, Shanghai, Jaipur, Pune, London, Oyama, Zhengzhou, Milan, Nashik, Houston, Patna, Hanoi, Dhaka, Hyderabad, Manama, Bangkok, Seoul, Delhi, Bhubaneswar, Cairo, Sharjah, Chennai, Karachi, Dammam, Khobar, Mexico Puchong, Chandigarh, Chi Jamnagar, Ashburn, Nagpur, Faridabad, City, Vasai Jamshedpur, City, City, Kota, Hazira, Tiruchirappalli, Visakhapatnam, Gurgaon, Busan, Kochi, Jeddah, Lagos, Istanbul, Madrid, Calgary, Santiago, Surabaya, Abu Coimbatore, Navi Minh Ahmedabad, Raipur, Ajman, Ludhiana, Surat, Shah Jubail, Virar, Johor Mumbai, Kuala Agra, Thane, Noida, Vapi, Alexandria, Brisbane, Bahru, Lucknow, Mumbai, Hangzhou, Dombivli, Tau, Dubai, Dallas.

Stainless Steel Blind Flange Prices

Description Price In INR (Per Piece)
Stainless Steel Blind Flange
3/4 X 150# SCH 40 320.00
1 X 150# SCH 40 400.00
1-1/2 X 150# SCH 40 550.00
2 X 150# SCH 40 860.00
3 X 300# SCH 80 1150.00
4 X 300# SCH 80 1450.00
6 X 300# SCH 80 1700.00
8 X 300# SCH 80 2100.00

Rajendra Piping & Fittings SS Blind Flanges Manufacturer in India. For final Stainless Steel Blind Flange Price List Please Call on +91(22) – 6743 8321 or drop an Email to info@rpfindia.com.


We Manufacturer High Quality ASME B16.5 Blind Flange In Mumbai, India And Stainless Steel 316 Blind Flange Weight Chart.


ASME B16.5 Blind Flange Weight Chart

NPS (Nominal Pipe Size) SORF (Slip On) NPT (Threaded) SWRF (Socket Weld) Loose (Lap Joint) BLRF (Blind) WRNR (Weld Neck)
½ 1 1 2 1 2 2
¾ 2 2 2 2 2 2
1 2 2 2 2 2 3
1¼ 3 3 3 3 3 3
1½ 3 3 3 3 4 4
2 5 5 5 5 5 6
2½ 8 8 8 8 7 10
3 9 9 9 9 9 11.5
3½ 11 12 11 11 13 12
4 13 13 13 13 17 16.5
5 15 15 15 15 20 21
6 19 19 19 19 27 26
8 30 30 30 30 47 42
10 43 43 43 43 70 54
12 64 64 64 64 123 88
14 90 90 90 105 140 114
16 106 98 98 140 180 140
18 130 130 130 160 220 165
20 165 165 165 195 285 197
22 185 185 185 245 355 225
24 220 220 220 275 430 268

Size Chart Of ANSI B16.5 Blind (BLRF) Flange

Normal Sizes In inchDimensionASME B16.5 Stainless Steel Blind Flange Dimensional Sizes 1/2 inch. to 2 1/2 inch.
Class 125
Class 150 		Class 300Class 400Class 600Class 900Class 1500Class 2500
inch.mminch.millimeterinch.mminch.mminch.mminch.mminchmm
1/2A3 1/288.93 3/495.23 3/495.23 3/495.24 3/41214 3/41215 1/4133.4
b7/1611.19/1614.39/1614.39/1614.37/822.27/822.21 3/1630.2
D21 3/834.91 3/834.91 3/834.91 3/834.91 3/834.91 3/834.91 3/834.9
D12 3/860.32 5/866.72 5/866.72 5/866.73 1/482.63 1/482.63 1/288.9
n44444444444-444
d5/815.95/815.95/815.95/815.97/822.27/822.27/822.2
3/4A3 7/898.44 5/8117.54 5/8117.54 5/8117.55 1/81305 1/81305 1/2139.7
b1/212.75/815.95/815.95/815.9125.4125.41 1/431.8
D21 11/1642.91 11/1642.91 11/1642.91 11/1642.91 11/1642.91 11/1642.91 11/1642.9
D12 3/469.83 1/482.53 1/482.53 1/482.53 1/288.93 1/288.93 3/495.2
n44444444444-444
d5/815.93/4193/4193/4197/822.27/822.27/822.2
1A4 1/41084 7/8123.84 7/8123.84 7/8123.85 7/8149.25 7/8149.26 1/4159
b9/1614.311/1617.511/1617.511/1617.51 1/828.61 1/828.61 3/834.9
D2250.8250.8250.8250.8250.8250.8250.8
D13 1/879.43 1/288.93 1/288.93 1/288.9410241024 1/4108
n44444444444444
d5/815.93/4193/4193/419125.4125.4125.4
1 1/4A4 5/8117.55 1/4133.45 1/4133.45 1/4133.46 1/41596 1/41597 1/4184.2
b5/815.93/41913/1620.613/1620.61 1/828.61 1/828.61 1/238.1
D22 1/263.52 1/263.52 1/263.52 1/263.52 1/263.52 1/263.52 1/263.5
D13 1/288.93 7/898.43 7/898.43 7/898.44 3/81114 3/81115 1/8130
n44444444444444
d5/815.93/4193/4193/419125.4125.41 1/828.6
1 1/2A51276 1/8155.66 1/8155.66 1/8155.67177.87177.88203
b11/1617.513/1620.67/822.27/822.21 1/431.81 1/431.81 3/444.5
D22 7/873 982 7/8732 7/8732 7/8732 7/8732 7/8732 7/873
D13 7/844 1/21144 1/21144 1/21144 7/81244 7/81245 3/4146
n44444444444444
d5/8. 15.97/822.27/822.27/822.21 1/828.61 1/828.61 1/431.8
2A6152.46 1/2165.16 1/2165.16 1/2165.18 1/2215.98 1/2215.99 1/4234.9
b3/4197/822.2125.4125.41 1/238.11 1/238.1250.8
D23 5/892.13 5/892.13 5/892.13 5/892.13 5/892.13 5/892.13 5/892.1
D14 3/41215127512751276 1/2165.16 1/2165.16 3/4171
n44888888888888
d3/4193/4193/4193/419125.4125.41 1/828.6
2 1/2A7177.87 1/2190.57 1/2190.57 1/2190.59 5/82449 5/824410 1/2266.7
b7/822.2125.41 1/828.61 1/828.61 5/841.31 5/841.32 1/457.2
D24 1/8104.84 1/8104.84 1/8104.84 1/8104.84 1/81054 1/81054 1/8105
D15 1/2139.75 7/8149.25 7/8149.25 7/8149.27 1/2190.57 1/2190.57 3/4197
n44888888888888
d3/4197/822.27/822.27/822.21 1/828.61 1/828.61 1/431.8

ASTM A182 F304 Blind Flange Tolerances

Stainless Steel Blind FlangeTolerance Table
A O.D. (Outside Diameter)
  • When O.D. (Outside Diameter) is 24" or less: ±1/16" (1.6 millimeter)
  • When O.D. (Outside Diameter) is over 24": ±1/8" (3.2 millimeter)
D Inside Diameter (I.D.)
  • 10" and smaller: ±1/32" (0.8 mm)
  • 12" thru 18": +1/8" (3.2 mm)
  • 20" and larger: -1/16" (1.6 mm)
B Diameter of contact face
  • 1/16" raised face: ±1/32" (0.8 mm)
  • 1/4" RF (Raised Face), T/G (Tongue & Groove), (male & female), (m/f): ±1/64" (0.4 millimeter)
J Diameter of hub at base
  • When hub base is 24" or smaller: ±1/16" (1.6 millimeter)
  • When hub base is over 24": ±1/8" (3.2 millimeter)
H Diameter of hub at point of welding
  • 5" and smaller: +3/32" (2.4 mm), -1/32" (0.8 mm)
  • 6" and larger: +5/32" (4.0 mm), -1/32 (0.8 mm)
P Drilling
  • Circle Bolts: ±1/16" (1.6 mm)
  • Bolts hole spacing: ±1/32" (0.8 mm)
  Eccentricity of bolt circle with respect to facing
  • 2 1/2" and smaller ±1/32" (0.8 mm) maximum
  • 3" and larger ±1/16" (1.6 mm) maximum
C Thickness
  • 18" and smaller: ±1/8" (3.2 mm), -0"
  • 20" and larger: ±3/16" (4.8 mm), -0"
K Length of hub
  • 10" and smaller: ±1/16" (1.6 mm)
  • 12" and larger: ±1/8" (3.2 mm)

EIL Approved SA182 F316 BLRF Flange Manufacturer In India And EN 1092 SS Blind Flanges Thickness Calculation For Pressure Vessel/ Pressure Rating Formul.


EN 1092-1 Type 05 Blind Flange Pressure Calculation

ASTM A182 Stainless Steel Blind Flange Pressure And Temperature Ratings
Temperature °F Class 150 As Per ASME B16.5 Class 300 As Per ASME B16.5 Class 400 As Per ASME B16.5 Class 600 As Per ASME B16.5 Class 900 As Per ASME B16.5 Class 1500 As Per ASME B16.5 Class 2500 As Per ASME B16.5
-20 to 100 275 720 960 1440 2160 3600 6000
200 230 600 800 1200 1800 3000 5000
300 205 540 720 1080 1620 2700 4500
400 190 495 660 995 1490 2485 4140
500 170 465 620 930 1395 2330 3880
600 140 435 580 875 1310 2185 3640
650 125 430 575 860 1290 2150 3580
700 110 425 565 850 1275 2125 3540
750 95 415 555 830 1245 2075 3460
800 80 405 540 805 1210 2015 3360
850 65 395 530 790 1190 1980 3300
900 50 390 520 780 1165 1945 3240
950 35 380 510 765 1145 1910 3180
1000 20 320 430 640 965 1605 2675
1050 20 310 410 615 925 1545 2570
1100 20 255 345 515 770 1285 2145
1150 20 200 265 400 595 995 1655
1200 20 155 205 310 465 770 1285
1250 20 115 150 225 340 565 945
1300 20 85 115 170 255 430 715
1350 20 60 80 125 185 310 515
1400 20 50 65 95 145 240 400
1450 15 35 45 70 105 170 285
1500 10 25 35 55 80 135 230

BS4504 Pn16 Slip Blind Flange Thickness Chart

Wall Thickness Of Stainless Steel Blind Flange
Normal Pipe Size (NPS) O.D. (Outside Daimeter) Sch 10 Sch 20 Sch 30 STD Wall Outside Daimeter Sch 40 Sch 60 EXT Hvy Outside Daimeter Schedule 80 Schedule 100 Schedule 120 Schedule 140 Schedule 160 XX Hvy
½ 0.84 0.083 ... ... 0.109 0.109 ... 0.147 0.147 ... ... ... 0.188 0.294
¾ 1.05 0.083 ... ... 0.113 0.113 ... 0.154 0.154 ... ... ... 0.219 0.308
1 1.315 0.109 ... ... 0.133 0.133 ... 0.179 0.179 ... ... ... 0.25 0.358
1 ¼ 1.66 0.109 ... ... 0.14 0.14 ... 0.191 0.191 ... ... ... 0.25 0.382
1 ½ 1.9 0.109 ... ... 0.145 0.145 ... 0.2 0.2 ... ... ... 0.281 0.4
2 2.375 0.109 ... ... 0.154 0.154 ... 0.218 0.218 ... ... ... 0.344 0.436
2 ½ 2.875 0.12 ... ... 0.203 0.203 ... 0.276 0.276 ... ... ... 0.375 0.552
3 3.5 0.12 ... ... 0.216 0.216 ... 0.3 0.3 ... ... ... 0.438 0.6
3 ½ 4 0.12 ... ... 0.226 0.226 ... 0.318 0.318 ... ... ... ... 0.636
4 4.5 0.12 ... ... 0.237 0.237 ... 0.337 0.337 ... 0.438 ... 0.531 0.674
5 5.563 0.134 ... ... 0.258 0.258 ... 0.375 0.375 ... 0.5 ... 0.625 0.75
6 6.625 0.134 ... ... 0.28 0.28 ... 0.432 0.432 ... 0.562 ... 0.719 0.864
8 8.625 0.148 0.25 0.277 0.322 0.322 0.406 0.5 0.5 0.594 0.719 0.812 0.906 0.875
10 10.75 0.165 0.25 0.307 0.365 0.365 0.5 0.5 0.594 0.719 0.844 1 1.125 1
12 12.75 0.18 0.25 0.33 0.375 0.406 0.562 0.5 0.688 0.844 1 1.125 1.312 1
14 14 0.25 0.312 0.375 0.375 0.438 0.594 0.5 0.75 0.938 1.094 1.25 1.406 ...
16 16 0.25 0.312 0.375 0.375 0.5 0.656 0.5 0.844 1.031 1.219 1.438 1.594 ...
18 18 0.25 0.312 0.438 0.375 0.562 0.75 0.5 0.938 1.156 1.375 1.562 1.781 ...
20 20 0.25 0.375 0.5 0.375 0.594 0.812 0.5 1.031 1.281 1.5 1.75 1.969 ...
22 22 0.25 ... ... 0.375 ... ... 0.5 ... ... .... .... .... ....
24 24 0.25 0.375 0.562 0.375 0.688 0.969 0.5 1.219 1.531 1.812 2.062 2.344 ....
26 26 .... .... .... 0.375 .... .... 0.5 .... .... .... .... .... ....
30 30 0.312 0.5 0.625 0.375 .... .... 0.5 .... .... .... .... .... ....
36 36 0.312 0.5 0.625 0.375 0.75 .... 0.5 .... .... .... .... .... ....
40 40 .... .... .... 0.375 .... .... 0.5 .... .... .... .... .... ....
42 42 …….. …….. …….. 0.375 …….. …….. 0.5 …….. …….. …….. …….. …….. ……..
48 48 …….. …….. …….. 0.375 …….. …….. 0.5 …….. …….. …….. …….. …….. ……..

Stainless Steel Blind Flange Dimensions

Stainless Steel Blind Flange Dimensions

Class 150 Blind Flange Dimensions In MM

Normal Pipe Sizes (NPS) "A"
(Outside Daimeter) O.D.		 Thickness "(B)"
 "C"
(Raised Face Daimeter)		 "D"
(B.C.D.)		 # Bolts
Holes		 Bolt Holes Daimeter
 Approx.
Weight In Kilogram
1/2" 3-1/2 7/16 1-3/8 2-3/8 4 5/8 2
3/4" 3-7/8 1/2 1-11/16 2-3/4 4 5/8 2
1" 4-1/4 9/16 2 3-1/8 4 5/8 2
1-1/4" 4-5/8 5/8 2-1/2 3-1/2 4 5/8 3
1-1/2" 5 11/16 2-7/8 3-7/8 4 5/8 3
2" 6 3/4 3-5/8 4-3/4 4 3/4 4
2-1/2" 7 7/8 4-1/8 5-1/2 4 3/4 7
3" 7-1/2 15/16 5 6 4 3/4 9
3-1/2" 8-1/2 15/16 5-1/2 7 8 3/4 13
4" 9 15/16 6-3/16 7-1/2 8 3/4 17
5" 10 15/16 7-5/16 8-1/2 8 7/8 20
6" 11 1 8-1/2 9-1/2 8 7/8 27
8" 13-1/2 1-1/8 10-5/8 11-3/4 8 7/8 47
10" 16 1-3/16 12-3/4 14-1/4 12 1 67
12" 19 1-1/4 15 17 12 1 123
14" 21 1-3/8 16-1/4 18-3/4 12 1-1/8 139
16" 23-1/2 1-7/16 18-1/2 21-1/4 16 1-1/8 187
18" 25 1-9/16 21 22-3/4 16 1-1/4 217
20" 27-1/2 1-11/16 23 25 20 1-1/4 283
24" 32 1-7/8 27-1/4 29-1/2 20 1-3/8 415

Class 300 Blind Flange Dimensions In Mm

Normal Pipe Size (NPS) "A"
(Ouside Daimeter) O.D.		 Thickness"(B) "
 "C"
(Raised Face Daimeter)		 "D"
(B.C.D.)		 # Bolts
Holes		 Bolt Holes Daimeter
 Approx.
Weight in Kg (Kilogram)
1/2" 3-3/4 9/16 1-3/8 2-5/8 4 5/8 2
3/4" 4-5/8 5/8 1-11/16 3-1/4 4 3/4 3
1" 4-7/8 11/16 2 3-1/2 4 3/4 4
1-1/4" 5-1/4 3/4 2-1/2 3-7/8 4 3/4 6
1-1/2" 6-1/8 13/16 2-7/8 4-1/2 4 7/8 7
2" 6-1/2 7/8 3-5/8 5 8 3/4 8
2-1/2" 7-1/2 1 4-1/8 5-7/8 8 7/8 12
3" 8-1/4 1-1/8 5 6-5/8 8 7/8 16
3-1/2" 9 1-3/16 5-1/2 7-1/4 8 7/8 21
4" 10 1-1/4 6-3/16 7-7/8 8 7/8 28
5" 11 1-3/8 7-5/16 9-1/4 8 7/8 37
6" 12-1/2 1-7/16 8-1/2 10-5/8 12 7/8 48
8" 15 1-5/8 10-5/8 13 12 1 79
10" 17-1/2 1-7/8 12-3/4 15-1/4 16 1-1/8 122
12" 20-1/2 2 15 17-3/4 16 1-1/4 183
14" 23 2-1/8 16-1/4 20-1/4 20 1-1/4 241
16" 25-1/2 2-1/4 18-1/2 22-1/2 20 1-3/8 315
18" 28 2-3/8 21 24-3/4 24 1-3/8 414
20" 30-1/2 2-1/2 23 27 24 1-3/8 515
24" 36 2-3/4 27-1/4 32 24 1-5/8 800

Class 400 Blind Flange Dimensions In MM

Normal Pipe Size (NPS)O.D. (Outside Daimeter)BC (Bolts Circle)Raised Face (RF)RF (Raised Face)Thickness Of (RF) Raised Face (T)Thickness Of (FF) Flat Face (T2)Bolts Holes (B) Bolts Holes Numbers      
1/2" 3.75"2.62"0.12".250"0.81"0.56"0.62"4
3/4" 4.62"3.25"0.12".250"0.87"0.62"0.75"4
1"4.88"3.50"0.12".250"0.94"0.69"0.75"4
1-1/4" 5.25"3.88"0.19".250"1.06"0.81"0.75"4
1-1/2" 6.12"4.50"0.25".250"1.13"0.88"0.88"4
2"6.50"5.00"0.31".250"1.25"1.00"0.75"8
2-1/2" 7.50"5.88"0.31".250"1.37"1.12"0.88"8
3"8.25"6.62"0.38".250"1.50"1.25"0.88"8
3-1/2"9.00"7.25"0.38".250"1.63"1.38"1.00"8
4"10.00"7.88"0.44".250"1.63"1.38"1.00"8
5"11.00"9.25"0.44".250"1.75"1.50"1.00"8
6"12.50"10.62"0.50".250"1.87"1.62"1.00"12
8"15.00"13.00"0.50".250"2.13"1.88"1.12"12
10"17.50"15.25"0.50".250"2.37"2.12"1.25"16
12"20.50"17.75"0.50".250"2.50"2.25"1.38"16
14"23.00"20.25"0.50".250"2.63"2.38"1.38"20
16"25.50"22.50"0.50".250"2.75"2.50"1.50"20
18"28.00"24.75"0.50".250"2.87"2.62"1.50"24
20"30.50"27.00"0.50".250"3.00"2.75"1.62"24
22"33.00"29.25"0.50".250"3.13"2.88"1.75"24
24"36.00"32.00"0.50".250"3.25"3.00"1.88"24

Class 600 Blind Flange Dimensions In MM

ø D b g k Holes l Kg.
1/2" 95,2 14,3 34,9 66,7 4 15,9 0,700
3/4" 117,5 15,9 42,9 82,5 4 19,0 1,200
1" 123,8 17,5 50,8 88,9 4 19,0 1,500
1 1/4" 133,3 20,6 63,5 98,4 4 19,0 2,000
1 1/2" 155,6 22,2 73,0 114,3 4 22,2 3,200
2" 165,1 25,4 92,1 127,0 8 19,0 4,300
2 1/2" 190,5 28,6 104,8 149,2 8 22,2 6,000
3" 209,5 31,7 127,0 168,3 8 22,2 8,000
3 1/2" 228,6 34,9 139,7 184,1 8 25,4 10,500
4" 273,0 38,1 157,2 215,9 8 25,4 18,000
5" 330,2 44,4 185,7 266,7 8 28,6 28,500
6" 355,6 47,6 215,9 292,1 12 28,6 35,500
8" 419,1 55,6 269,9 349,2 12 31,7 58,000
10" 508,0 63,5 323,8 431,8 16 34,9 98,000
12" 558,8 66,7 381,0 488,9 20 34,9 125,000
14" 603,2 69,8 412,7 527,0 20 38,1 151,000
16" 685,8 76,2 469,9 603,2 20 41,3 215,000
18" 742,9 82,5 533,4 654,0 20 44,4 287,000
20" 812,8 88,9 584,2 723,9 24 44,4 366,000
22" 869,9 95,2 641,2 777,9 24 47,6 437,000
24" 939,8 101,6 692,1 838,2 24 50,8 532,000

Class 900 Blind Flange Dimensions In MM

Normal Pipe Size (NPS)Outside Daimeter (O.D.)BC (Bolts Circle)Raised Face (R)RF (Raised Face)Thickness Of (RF) Raised Face (T)Thickness Of (FF) Flat Face (T2)Holes Of Bolts (B) Bolts Holes Numbers
3" 9.50"7.50"5.00".250"1.75"1.50"1.00"8
4"11.50"9.25"6.19".250"2.00"1.75"1.25"8
5"13.75"11.00"7.31".250"3.25"3.00"1.38"8
6"15.00"12.50"8.50".250"2.44"2.19"1.25"12
8"18.50"15.50"10.63".250"2.75"2.50"1.50"12
10"21.50"18.50"12.75".250"3.00"2.75"1.50"16
12"24.00"21.00"15.00".250"3.38"3.13"1.50"20
14"25.25"22.00"16.25".250"3.63"3.38"1.63"20
16"27.75"24.25"18.50".250"3.75"3.50"1.75"20
18"31.00"27.00"21.00".250"4.25"4.00"2.00"20
20"33.75"29.50"23.00".250"4.50"4.25"2.13"20
24"41.00"35.50"27.25".250"5.75"5.50"2.63"20

Class 1500 Blind Flange Dimensions In MM

Normal Pipe Size (NPS) O.D. (Outside Daimeter) Of Flange Flange Thickness (Minimum) Hub Daimeters Bolts Circle Daimeter Bolts Holes Daimeter Bolts Numbers Daimeter of Bolts In inch Approx. Weight in kilogram
inches dn O C X BC BH BN BD KG/PCS LB/PCS
1/2 15 120.7 22.4 38.1 82.6 22.4 4 3/4 1.9 4.2
3/4 20 130 25.4 44.5 88.9 22.4 4 3/4 2.7 6
1 25 149.4 28.4 52.3 101.6 25.4 4 7/8 3.7 8.1
1-1/4 32 158.8 28.4 63.5 111.3 25.4 4 7/8 4.3 9.5
1-1/2 40 177.8 31.8 69.9 124 28.4 4 1 5.9 13
2 50 215.9 38.1 104.6 165.1 25.4 8 7/8 11.3 24.9
2-1/2 65 244.3 41.1 124 190.5 28.4 8 1 16 35.2
3 80 266.7 47.8 133.4 190.5 25.4 8 7/8 19.5 43
4 100 311.2 53.8 162.1 235 31.8 8 1 1/8 33 72.8
5 125 374.7 73.2 196.9 279.4 35.1 8 1 1/4 60 132
6 150 393.7 82.6 228.6 317.5 31.8 12 1 1/8 75 165
8 200 482.6 91.9 292.1 393.7 38.1 12 1 3/8 125 275
10 250 584.2 108 368.3 469.9 38.1 16 1 3/8 215 474
12 300 673.1 124 450.9 533.4 38.1 20 1 3/8 316 697
14 350 749.3 133.4 495.3 558.8 41.1 20 1 1/2
16 400 825.5 146.1 552.5 616 44.5 20 1 5/8
18 450 914.4 162.1 596.9 685.8 50.8 20 1 7/8
20 500 984.3 177.8 641.4 749.3 53.8 20 2
24 600 1168.4 203.2 762 901.7 66.5 20 2 1/2

Class 2500 Blind Flange Dimensions In MM

Normal Pipe Sizes (NPS) Flange (O.D.) Outside Daimeter Flange Thickness (Minimum) Bolts Circle Daimeter Bolts Holes Daimeter Bolts Numbers Daimeter of Bolts In inches Kilogram LB
inch dn O C BC BH BN BD
1/2 15 133.4 30.2 88.9 22.4 4 3/4 3 7
3/4 20 139.7 31.8 95.3 22.4 4 3/4 4.5 10
1 25 158.8 35.1 108 25.4 4 7/8 5 12
1-1/4 32 184.2 38.1 130 28.4 4 1 8 18
1-1/2 40 203.2 44.5 146.1 31.8 4 1 1/8 11 25
2 50 235 50.8 171.5 28.4 8 1 17 38
2-1/2 65 266.7 57.2 196.9 31.8 8 1 1/8 25 55
3 80 304.8 66.5 228.6 35.1 8 1 1/4 39 86
4 100 355.6 76.2 273.1 41.1 8 1 1/2 60 133
5 125 419.1 91.9 323.9 47.8 8 1 3/4 101 223
6 150 482.6 108 368.3 53.8 8 2 156 345
8 200 552.5 127 438.2 53.8 12 2 242 533
10 250 673.1 165.1 539.8 66.5 12 2 1/2 465 1023
12 300 762 184.2 619.3 73.2 12 2 3/4 665 1463

One Of The Top Manufacturer Of ASTM A182 Blind Flanges In India And Grade F316L Blank Flange Bolt Size Chart In Millimeter.

ASTM A182 SS Blind Flange Bolt Pattern

150# Flange As Per ANSI B16.5 300# Flange As Per ANSI B16.5 600# Flange As Per ANSI B16.5
Normal Pipe Size # Studs And Bolts Diameter of Studs And Bolts Length Of Studs # Studs And Bolts Diameter of Studs And Bolts Stud Length # Studs And Bolts Diameter of Studs And Bolts Length Of Studs
1/16 RF RTJ 1/16 RF RTJ 1/4 RF RTJ
1/2 4 0.50 2-1/4 – 4 0.50 2-1/2 3 4 0.50 3 3
3/4 4 0.50 2-1/2 – 4 0.63 3 3-1/2 4 0.63 3-1/2 3-1/2
1 4 0.50 2-1/2 3 4 0.63 3 3-1/2 4 0.63 3-1/2 3-1/2
1-1/4 4 0.50 2-3/4 3-1/4 4 0.63 3-1/4 3-3/4 4 0.63 3-3/4 3-3/4
1-1/2 4 0.50 2-3/4 3-1/4 4 0.75 3-1/2 4 4 0.75 4-1/4 4-1/4
2 4 0.63 3-1/4 3-3/4 8 0.63 3-1/2 4 8 0.63 4-1/4 4-1/4
2-1/2 4 0.63 3-1/2 4 8 0.75 4 4-1/2 8 0.75 4-3/4 4-3/4
3 4 0.63 3-1/2 4 8 0.75 4-1/4 4-3/4 8 0.75 5 5
3-1/2 8 0.63 3-1/2 4 8 0.75 4-1/4 5 8 0.88 5-1/2 5-1/2
4 8 0.63 3-1/2 4 8 0.75 4-1/2 5 8 0.88 5-3/4 5-3/4
5 8 0.75 3-3/4 4-1/4 8 0.75 4-3/4 5-1/4 8 1.00 6-1/2 6-1/2
6 8 0.75 4 4-1/2 12 0.75 4-3/4 5-1/2 12 1.00 6-3/4 6-3/4
8 8 0.75 4-1/4 4-3/4 12 0.88 5-1/2 6 12 1.13 7-1/2 7-3/4
10 12 0.88 4-1/2 5 16 1.00 6-1/4 6-3/4 16 1.25 8-1/2 8-1/2
12 12 0.88 4-3/4 5-1/4 16 1.13 6-3/4 7-1/4 20 1.25 8-3/4 8-3/4
14 12 1.00 5-1/4 5-3/4 20 1.13 7 7-1/2 20 1.38 9-1/4 9-1/4
16 16 1.00 5-1/4 5-3/4 20 1.25 7-1/2 8 20 1.50 10 10
18 16 1.13 5-3/4 6-1/4 24 1.25 7-3/4 8-1/4 20 1.63 10-3/4 10-3/4
20 20 1.13 6-1/4 6-3/4 24 1.25 8 8-3/4 24 1.63 11-1/4 11-1/2
24 20 1.25 6-3/4 7-1/4 24 1.50 9 10 24 1.88 13 13-1/4

 

900# Flange As Per ANSI B16.5 1500# Flange As Per ANSI B16.5 2500# Flange As Per ANSI B16.5
Normal Pipe Size # Studs And Bolts Diameter of Bolts And Studs Stud Length # Studs And Bolts Diameter of Studs And Bolts Length Of Studs # Studs And Bolts Diameter of Studs And Bolts Length Of Studs
1/4 RF RTJ 1/4 RF RTJ 1/4 RF RTJ
1/2 4 0.75 4-1/4 4-1/4 4 0.75 4-1/4 4-1/4 4 0.75 4-3/4 4-3/4
3/4 4 0.75 4-1/2 4-1/2 4 0.75 4-1/2 4-1/2 4 0.75 5 5
1 4 0.88 5 5 4 0.88 5 5 4 0.88 5-1/2 5-1/2
1-1/4 4 0.88 5 5 4 0.88 5 5 4 1.00 6 6
1-1/2 4 1.00 5-1/2 5-1/2 4 1.00 5-1/2 5-1/2 4 1.13 6-3/4 6-3/4
2 8 0.88 5-3/4 5-3/4 8 0.88 5-3/4 5-3/4 8 1.00 7 7
2-1/2 8 1.00 6-1/4 6-1/4 8 1.00 6-1/4 6-1/4 8 1.13 7-3/4 8
3 8 0.88 5-3/4 5-3/4 8 1.13 7 7 8 1.25 8-3/4 9
4 8 1.13 6-3/4 6-3/4 8 1.25 7-3/4 7-3/4 8 1.50 10 10-1/4
5 8 1.25 7-1/2 7-1/2 8 1.50 9-3/4 9-3/4 8 1.75 11-3/4 12-1/4
6 12 1.13 7-1/2 7-3/4 12 1.38 10-1/4 10-1/2 8 2.00 13-1/2 14
8 12 1.38 8-3/4 8-3/4 12 1.63 11-1/2 11-3/4 12 2.00 15 15-1/2
10 16 1.38 9-1/4 9-1/4 12 1.88 13-1/4 13-1/2 12 2.50 19-1/4 20
12 20 1.38 10 10 16 2.00 14-3/4 15-1/4 12 2.75 21-1/4 22
14 20 1.50 10-3/4 11 16 2.25 16 16-3/4 – – – –
16 20 1.63 11-1/4 11-1/2 16 2.50 17-1/2 18-1/2 – – – –
18 20 1.88 12-3/4 13-1/4 16 2.75 19-1/2 20-3/4 – – – –
20 20 2.00 13-3/4 14-1/4 16 3.00 21-1/4 22-1/4 – – – –
24 20 2.50 17-1/4 18 16 3.50 24-1/4 25-1/2 – – – –

Stainless Steel 316 Blind Flange Gasket Material

Normal Pipe Size Gasket I.D. (Inside Daimeter)
 Gasket O.D. (Outside Daimeter)
150 LB 300 LB 400 LB 600 LB 900 LB
1/2 0.84 1.875 2.125 2.125 2.125 2.50
3/4 1.06 2.25 2.625 2.625 2.625 2.75
1 1.31 2.625 2.875 2.875 2.875 3.125
1 1/4 1.66 3 3.25 3.25 3.25 3.50
1 1/2 1.91 3.375 3.75 3.75 3.75 3.875
2 2.38 4.125 4.375 4.375 4.375 5.625
2 1/2 2.88 4.875 5.125 5.125 5.125 6.50
3 3.50 5.375 5.875 5.875 5.875 6.625
4 4.50 6.875 7.125 7.00 7.625 8.125
5 5.56 7.75 8.50 8.375 9.50 9.75
6 6.62 8.75 9.875 9.75 10.50 11.375
8 8.62 11 12.125 12.00 12.625 14.125
10 10.75 13.375 14.25 14.125 15.75 17.125
12 12.75 16.125 16.625 16.50 18.00 19.625

ANSI B16.5 SA182 SS BLRF Flange Torque Chart

Size in Inches Size in Millimeter Imperfections Max. Radial Projection
No Deeper Than the Bottom of the Serrations, millimeter Deeper Than the Bottom of the Serrations, millimeter
1/2 15 3.0 1.5
3/4 20 3.0 1.5
1 25 3.0 1.5
1 1/4 32 3.0 1.5
1 1/2 40 3.0 1.5
2 50 3.0 1.5
2 1/2 65 3.0 1.5
3 80 4.5 1.5
3 1/2 90 6.0 3.0
4 100 6.0 3.0
5 125 6.0 3.0
6 150 6.0 3.0
8 200 8.0 4.5
10 250 8.0 4.5
12 300 8.0 4.5
14 350 8.0 4.5
16 400 10.0 4.5
18 450 12.0 6.0
20 500 12.0 6.0
24 600 12.0 6.0

EN 1092 SS Blind Flanges Application For Use

  • Stainless Steel Blind Flange For Oil And Gas Industry

  • SS Blind Flanges For Nuclear Power/ Nuclear Plants

  • ASTM A182 F304 Blind Flange For Industrial Boilers

  • ASME B16.5 Blind Flange For Power Plants

  • Stainless Steel 316 Blind Flange For Condensers

  • SA182 F316L BLRF Flange For Heat Exchangers

  • ASTM A182 Blind Flanges For Marine Applications

  • ASME B16.48 Stainless Steel Spectacle Blind Flange For Fossil Fuel Power Plants


Looking To Buy Stainless Steel Spectacle Blind Flange? Contact Rajendra Pipe & Fittings, Accept All Small And Large Orders Of AWWA Class B SS Blind Flanges In Mumbai, India.

ASME B16.48 Stainless Steel Spectacle Blind Flange Dimensions

ASME B16.48 Stainless Steel Spectacle Blind Flange Dimensions

(NPS) Normal Pipe Size (O.D>) Outside Daimeter Of
A		 (I.D.) Inside Daimeter Of
B		 Center Line Of
C		 Thickness Of
T		 Width Of Web
W
1/2 45 16 60 3 38
3/4 54 21 70 3 38
1 64 27 80 3 38
1¼ 73 42 90 6.4 38
1½ 83 48 100 6.4 38
2 102 61 120 6.4 51
2½ 107 73 140 6.4 51
3 133 89 150 6.4 64
3½ 159 102 175 9.7 64
4 172 114 190 9.7 64
5 194 141 215 9.7 76
6 219 168 240 12.7 76
8 276 219 300 12.7 76
10 337 273 360 15.7 102
12 406 324 430 19.1 102
14 448 356 475 19.1 108
16 511 406 460 22.4 108
18 546 457 580 25.4 114
20 603 508 635 28.4 121
24 714 610 750 31.8 140

ASME B16 5 Tapped Blind Flange Dimensions

ASME B16 5 Tapped Blind Flange Dimensions

(NPS) Normal Pipe Sizes D G K T
1/2 90 34.9 60.3 9.6
3/4 100 42.9 69.9 11.2
1 110 50.8 79.4 12.7
1-1/4 115 63.5 88.9 14.3
1-1/2 125 73.0 98.4 15.9
2 150 92.1 120.7 17.5
2-1/2 180 104.8 139.7 20.7
3 190 127.0 152.4 22.3
3-1/2 215 139.7 177.8 22.3
4 230 157.2 190.5 22.3
5 255 185.7 215.9 22.3
6 280 215.9 241.3 23.9
8 345 269.9 298.5 27.0
10 405 323.8 362.0 28.6
12 485 381.0 431.8 30.2
14 535 412.8 476.3 33.4
16 595 469.9 539.8 35.0
18 635 533.4 577.9 38.1
20 700 584.2 635.0 41.3
22 750 641.4 692.2 44.5
24 815 692.2 749.3 46.1

PN16 Blank Flange Dimensions

PN16 Blank Flange Dimensions

Size
in Inches		 Size
in Millimeter		 Outer
Diameter		 Flanges
Thickness		 Raised Face
Diameter		 Raised Face
Height		 PCD Number of
Bolts		 Bolts Sizes In
UNC		 Length Of
Machine Bolts		 Length Of
Raised Face Stud		 Holes Sizes Size Of
ISO Studs		 Weight
in kilogram
A B C D E
1/2 15 90 9.6 34.9 2 60.3 4 1/2 50 55 5/8 M14 0.9
3/4 20 100 11.2 42.9 2 69.9 4 1/2 50 65 5/8 M14 0.9
1 25 110 12.7 50.8 2 79.4 4 1/2 55 65 5/8 M14 0.9
1 1/4 32 115 14.3 63.5 2 88.9 4 1/2 55 70 5/8 M14 1.4
1 1/2 40 125 15.9 73 2 98.4 4 1/2 65 70 5/8 M14 1.8
2 50 150 17.5 92.1 2 120.7 4 5/8 70 85 3/4 M16 2.3
2 1/2 65 180 20.7 104.8 2 139.7 4 5/8 75 90 3/4 M16 3.2
3 80 190 22.3 127 2 152.4 4 5/8 75 90 3/4 M16 4.1
3 1/2 90 215 22.3 139.7 2 177.8 8 5/8 75 90 3/4 M16 5.9
4 100 230 22.3 157.2 2 190.5 8 5/8 75 90 3/4 M16 7.7
5 125 255 22.3 185.7 2 215.9 8 3/4 85 95 7/8 M20 9.1
6 150 280 23.9 215.9 2 241.3 8 3/4 85 100 7/8 M20 11.8
8 200 345 27 269.9 2 298.5 8 3/4 90 110 7/8 M20 20.5
10 250 405 28.6 323.8 2 362 12 7/8 100 115 1 M24 32
12 300 485 30.2 381 2 431.8 12 7/8 100 120 1 M24 50
14 350 535 33.4 412.8 2 476.3 12 1 115 135 1 1/8 M27 64
16 400 595 35 469.9 2 539.8 16 1 115 135 1 1/8 M27 82
18 450 635 38.1 533.4 2 577.9 16 1 1/8 125 145 1 1/4 M30 100
20 500 700 41.3 584.2 2 635 20 1 1/8 140 160 1 1/4 M30 130
24 600 815 46.1 692.2 2 749.3 20 1 1/4 150 170 1 3/8 M33 196

Stainless Steel Blind Plate Flanges Dimensions

Stainless Steel Blind Plate Flanges Dimensions

ø
D
b
g
m
J
k
Holes
l
Kilogram (KG)
1/2"
88,9
11,1
34,9
30,2
22,3
60,3
4
15,9
0,400
3/4"
98,4
12,7
42,9
38,1
27,7
69,8
4
15,9
0,700
1"
107,9
14,3
50,8
49,2
34,5
79,4
4
15,9
0,800
1 1/4"
117,5
15,9
63,5
58,8
43,2
88,9
4
15,9
1,100
1 1/2"
127,0
17,5
73,0
65,1
49,5
98,4
4
15,9
1,400
2"
152,4
19,0
92,1
77,8
62,0
120,6
4
19,0
2,200
2 1/2"
177,8
22,2
104,8
90,5
74,7
139,7
4
19,0
3,600
3"
190,5
23,8
127,0
107,9
90,7
152,4
4
19,0
4,100
3 1/2"
215,9
23,8
139,7
122,2
103,4
177,8
8
19,0
5,200
4"
228,6
23,8
157,2
134,9
116,1
190,5
8
19,0
5,600
5"
254,0
23,8
185,7
163,6
143,8
215,9
8
22,2
6,300
6"
279,4
25,4
215,9
192,1
170,7
241,3
8
22,2
7,500
8"
342,9
28,6
269,9
246,1
221,5
298,4
8
22,2
12,600
10"
406,4
30,2
323,8
304,8
276,3
361,9
12
25,4
18,500
12"
482,6
31,7
381,0
365,1
327,1
431,8
12
25,5
28,000
14"
533,4
34,9
412,7
400,0
359,1
476,2
12
28,6
36,000
16"
596,9
36,5
469,9
457,2
410,5
539,7
16
28,6
46,000
18"
635,0
39,7
533,4
504,8
461,8
577,8
16
31,7
50,000
20"
698,5
42,9
584,2
558,8
513,1
635,0
20
31,7
64,000
22"
749,3
46,0
641,2
609,6
564,4
692,1
20
34,9
72,000
24"
812,8
47,6
692,1
663,6
615,9
749,3
20
34,9
89,000

Since 1997, We Have Been Supplyed Type Of Stainless Steel Blind Flange In India

ASTM A182 F304 Blind Pipe Flanges
ASTM A182 F304 Blind Pipe Flanges
ASME B16.5 Raised Face Blind Flange
ASME B16.5 Raised Face Blind Flanges
Stainless Steel 316 Raised Face Blind Flange
Stainless Steel 316 Raised Face Blind Flanges
SA182 F316L Threaded Blind Flange
SA182 F316L Threaded Blind Flanges

EN 1092 SS Flat Face Blind Flange
EN 1092 SS Flat Face Blind Flanges
ASTM A182 SS Paddle Blind Flange
ASTM A182 SS Paddle Blind Flanges
Grade F316L Reducing Blind Flange
Grade F316L Reducing Blind Flanges
Stainless Steel Ring Joint Blind Flange
Stainless Steel Ring Joint Blind Flanges

AWWA Class B SS Slip On Blind Flange
AWWA Class B SS Slip On Blind Flange
Stainless Steel Blind Flange
Stainless Steel Blind Flanges
ASTM A182 Stainless High Hub Blind Flange
ASTM A182 Stainless High Hub Blind Flanges
Steel Lap Joint Blind Flange
Steel Lap Joint Blind Flanges


Some Of The Major Locations We Have Supplied Stainless Steel Blind Flange:

300 LB, FF, ASME B16.5, 8 Inch, SS Blind Flanges Malaysia, USA, Finland, Bangladesh
SCH20, 10 Inch, Class 300, ASTM A182 F304 Blind Flange Iran, Chile, Italy, Singapore
12 Inch, Class 1500, SCH30, ASME B16.5 Blind Flange Spain, UK, Egypt, Mexico
22 Inch, ANSI B16.5, SCH 70, Stainless Steel 316 Blind Flange Norway, Malaysia, United Arab Emirates (UAE), Turkey
RF, DN 100, B16.5, PN 50, ASTM A182 F304 Blind Pipe Flanges Indonesia, Belgium, Dammam -KSA, Philippines.
24 Inch, 300#, BS EN 10204-1, ASME B16.5 Raised Face Blind Flanges Singapore, Malaysia, Canada, Philippines
150#, SCH 80, 24 Inch, SA182 F316L Threaded Blind Flanges Europe, Romania, Japan, Malaysia
Class 900, 14 Inch, Forged, EN 1092 SS Flat Face Blind Flanges Poland, Canada, Ellington -United States, UK
Raised Face, 16 Inch, Class 300, ASTM A182 SS Paddle Blind Flanges Europe, UAE, United Kingdom -UK, Malaysia
ANSI B16.48, 18 Inch, 900 LB, RF, Grade F316L Reducing Blind Flanges Malaysia, Sweden, Colombia, China
SCH 40, 8 Inch, 600#, Stainless Steel Ring Joint Blind Flanges Netherlands, Russia, Dubai, Malaysia
10 In, Class 1500, SCH 50, RF, AWWA Class B SS Slip On Blind Flange Saudi Arabia (KSA), Kuwait, South Africa, Brazil
Class 2500, 20 Inch, Steel Lap Joint Blind Flanges Nigeria, Australia, Philippines, UK
DN 600, 22 Inch, A182 Stainless High Hub Blind Flanges Malaysia, Hong Kong, Oman, UAE