Wenzhou Kaixin Metal Co.,Ltd

 

Stainless Steel Flange/

Stainless Steel Blind Flange

Production ability: Name: Blind flange

Sizes: 1/2" (15 NB) to 48" (1200NB) DN10~DN5000

Material Types: Stainless Steel, Alloy Steel, Carbon Steel and etc.

Class:150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.

Flange face type: Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove

Equipment:Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc

Application:Bitumen upgraders.Heavy oil refineries.Nuclear power (mostly seamless).Petrochemicals and acids.

Model number:

Orignal: Wenzhou,Zhejiang

Standrad:ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092

Brand: KXBL

Technics: Forged, Heat treated and machined

Package: Standard export package

Price: 15usd/kg

Delivery: Accord Quantity

  • Product Details

Whtat is Stainless Steel Blind Flange?

A Stainless Steel Blind Flange is a type of pipe flange that is used to shut off or block the end of a pipe or vessel. It is a solid disk or plate with a bolt hole in the center and a raised face on one side. The raised face creates a tight seal when the flange is attached to the end of a pipe or vessel using bolts. Blind flanges are typically used in piping systems where the end of a pipe needs to be blocked off for maintenance or safety purposes. They are popular in industries such as oil and gas, chemical, and pharmaceuticals because they offer a tight and secure seal that is resistant to corrosion and high temperatures. Stainless steel is a popular material choice for blind flanges because of its durability, resistance to corrosion, and ability to withstand high pressure and temperature environments.

Table of Content

 

  1. Blind Flange Specifications
  2. Applicationsof Blind Flange
  3. Material & Grades of Blind Flanges (BLRF)
  4. Dimensions of Blind Flange
  5. Blind Flange Weight Chart
  6. Blind Flange Pressure Ratings
  7. ASME B16.5 Blind Flange Available Types
  8. Blind Flange Price List

 Blind Flange Specifications

Blind Flange StandardsANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
ASME B16.5 Blind Flange Size Chart1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000
Blind Flange Pressure Rating ANSIClass 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS Blind Flange
CoatingOil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Blind Flange
Most common types of Blind FlangeForged / Threaded / Screwed / Plate
Connect Type/ Flange Face TypeRaised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove
Production technique· Forged, Heat treated and machined
TestDirect-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector
EquipmentPress machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc
Blind Flange Uses & application· Bitumen upgraders.

· Heavy oil refineries.

· Nuclear power (mostly seamless).

· Petrochemicals and acids.

Application of Blind Flange

  • ANSI B16.5 Class 150 Blind Flange uses in Industrial Boilers Industry
  • ASTM A182 Stainless Steel Blind Flange uses in Power Plants Industry
  • ASME B16.47 Series A and B Blind Flange uses in Nuclear Plants Industry
  • Stainless Steel Blind Flange uses in Oil & Gas Industry
  • Super Duplex Steel Blind Flange uses in Refineries Industry
  • Industrial Blind Flange uses in Ship Building Industry
  • Super Duplex Steel Blind Flangea Forged Flange uses in Heat Exchanger Industry
  • Carbon Steel Industrial Blind Flange uses in Condensers Industry
  • Alloy Steel Industrial Blind Flange uses in Paper & Pulp Industry
  • Duplex Steel Industrial Blind Flange uses in Marine Applications
  • Stainless Steel Industrial Blind Flange uses in Nuclear Power Industry
  • Industrial Blind Flangea / Fittings System uses in Fossil Fuel Power Plants Industry

Material & Grades of Blind Flanges (BLRF)

Carbon Steel Blind FlangeASTM/ASME A/SA105 A/SA105N & A/SA216-WCB, DIN 1.0402, DIN 1.0460, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80)
Stainless Steel Blind FlangeASTM/ASME A/SA182 F304, F304L, F316, F316L, ASTM/ASME A/SA351 CF8, CF3, CF8M, CF3M, DIN 1.4301, DIN 1.4306, DIN 1.4401, DIN 1.4404, DIN 1.4308, DIN 1.4408, DIN 1.4306, DIN 1.4409
Alloy Steel Blind FlangeASTM A182 / ASME SA182 F5, F9, F11, F12, F22, F91
Titanium Blind FlangeASTM B381 / ASME SB381, Titanium Gr. 1, Titanium Gr. 2, Titanium Gr. 4, Titanium Gr. 5, Titanium Gr. 7

ASTM R50250/GR.1 | R50400/GR.2 | R50550/GR.3 | R50700/GR.4 | GR.6 |R52400/GR.7 | R53400/GR.12 | R56320/GR.9 |R56400/GR.5

Copper Blind FlangeT1, T2, C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10910,C10920, TP1, TP2, C10930, C11000, C11300, C11400, C11500, C11600, C12000,C12200, C12300, TU1, TU2, C12500, C14200, C14420, C14500, C14510, C14520, C14530, C17200, C19200, C21000, C23000, C26000, C27000, C27400, C28000, C33000, C33200, C37000, C44300, C44400, C44500, C60800, C63020, C68700, C70400, C70600, C70620, C71000, C71500, C71520, C71640, etc
Copper Nickel Blind FlangeASTM / ASME SB 61 / 62 / 151 / 152, Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640
Brass Blind Flange3602 / 2604 / h39 / H62 / etc.
Inconel Blind FlangeASTM B564 / ASME SB564, Inconel 600, 601, 625, 718, 783, 690, x750 Flanges
Hastelloy Blind FlangeASTM B564 / ASME SB564, Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X Flanges
Monel Blind FlangeASTM B564 / ASME SB564, Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500)
Alloy 20 Blind FlangeASTM B462 / ASME SB462, Carpenter® 20 Alloy, Alloy 20Cb-3
Aluminium Blind Flange5052 /6061/ 6063 / 2017 / 7075 / etc.
Nickel Blind FlangeASTM B564 / ASME SB564, Nickel 200, Nickel 201, Nickel 205, Nickel 205LC
Duplex Blind FlangeS31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Super Duplex Blind FlangeS32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Incoloy Blind FlangeASTM B564 / ASME SB564, Incoloy 800, 800H, 800HT (UNS N08800), 825 (UNS N08825), 925 Flanges
254 Smo Blind FlangeASTM A182 / ASME SA182, SMO 254/6Mo, UNS S31254, DIN 1.4547
Nimonic Blind FlangeNimonic 75, Nimonic 80A, Nimonic 90
Other Blind Flange materialTin bronze, Alumunum bronze, Lead bronze

 Dimensions of Blind Flange

Stainless steel Blind Flange Dimension drawing

Stainless steel Blind Flange Dimension drawing

ANSI/ASME/ASA B16.5 150lb/sq.in. Flange BLIND-RF
øDbgkHoleslKg.
1/2″88,911,134,960,3415,90,400
3/4″98,412,742,969,8415,90,700
1″107,914,350,879,4415,90,900
1 1/4″117,515,963,588,9415,91,300
1 1/2″127,017,573,098,4415,91,600
2″152,419,092,1120,6419,02,600
2 1/2″177,822,2104,8139,4419,04,100
3″190,523,8127,0152,4419,05,000
3 1/2″215,923,8139,7177,8819,06,400
4″228,623,8157,2190,5819,07,100
5″254,023,8185,7215,9822,29,000
6″279,425,4215,9241,3822,211,800
8″342,928,6269,9298,4822,221,000
10″406,430,2323,4361,91225,430,000
12″482,631,7381,0431,81225,445,000
14″533,434,9412,7476,21228,659,000
16″596,936,5469,9539,91628,679,000
18″635,039,7533,4577,81631,797,000
20″698,542,9584,2635,02031,7124,000
22″749,346,0641,2692,12034,9151,000
24″812,847,6692,1749,32034,9188,000

 

ANSI/ASME/ASA B16.5 300lb/sq.in. Flange BLIND-RF
øDbgkHoleslKg.
1/2″95,214,334,966,7415,90,700
3/4″117,515,942,982,5419,01,200
1″123,817,550,888,9419,01,500
1 1/4″133,319,063,598,4419,02,000
1 1/2″155,620,673,0114,3422,22,900
2″165,122,292,1127,0819,03,400
2 1/2″190,525,4104,8149,2822,25,100
3″209,528,6127,0168,3822,27,000
3 1/2″228,630,2139,7184,1822,28,900
4″254,031,7157,2200,0822,211,800
5″279,434,9185,7234,9822,215,500
6″317,536,5215,9269,91222,221,300
8″381,041,3269,9330,21225,435,200
10″444,547,6323,8387,31628,657,000
12″520,750,8381,0450,81631,782,000
14″584,254,0412,7514,32031,7106,000
16″647,757,1469,9571,52034,9140,000
18″711,260,3533,4628,62434,9178,000
20″774,763,5584,2685,82434,9223,000
22″838,266,7641,2742,92441,3270,000
24″914,469,8692,1812,82441,3345,000

 

ANSI/ASME/ASA B16.5 600lb/sq.in. Flange BLIND-RF
øDbgkHoleslKg.
1/2″95,214,334,966,7415,90,700
3/4″117,515,942,982,5419,01,200
1″123,817,550,888,9419,01,500
1 1/4″133,320,663,598,4419,02,000
1 1/2″155,622,273,0114,3422,23,200
2″165,125,492,1127,0819,04,300
2 1/2″190,528,6104,8149,2822,26,000
3″209,531,7127,0168,3822,28,000
3 1/2″228,634,9139,7184,1825,410,500
4″273,038,1157,2215,9825,418,000
5″330,244,4185,7266,7828,628,500
6″355,647,6215,9292,11228,635,500
8″419,155,6269,9349,21231,758,000
10″508,063,5323,8431,81634,998,000
12″558,866,7381,0488,92034,9125,000
14″603,269,8412,7527,02038,1151,000
16″685,876,2469,9603,22041,3215,000
18″742,982,5533,4654,02044,4287,000
20″812,888,9584,2723,92444,4366,000
22″869,995,2641,2777,92447,6437,000
24″939,8101,6692,1838,22450,8532,000

Dimensional Tolerances of Blind Flange ASME B16.5

Outside Diameter

≤ 24 = 1.6 mm | > 24 = ± 3.2 mm

Inside Diameter

not applicable

Diameter of Contact Face

1.6 mm Raised Face = ± 0.8 mm

6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm

Outside Diameter of Hub

≤ 12 = + 2.4 mm / – 1.6 mm | ≥ 14 = ± 3.2 mm

Diameter of Counterbore

not applicable

Drilling

Bolt Circle = 1.6 mm | Bolt Hole Spacing = ± 0.8 mm

Eccentricity of Bolt Circle with Respect to Facing

≤ 2½ = 0.8 mm max. | ≥ 3 = 1.6 mm max.

Thickness

≤ 18 = + 3.2 mm / – 0 | ≥ 20 = + 4.8 mm / – 0

Length thru Hub

≤ 18 = + 3.2 mm / – 0.8 mm | ≥ 20 = + 4.8 mm / – 1.6 mm

Notes

  1. Dimensions are in millimeters unless otherwise indicated.
  2. The length of the stud bolt does not include the height of the chamfers (points).

Blind Flange Weight Chart

Flange Weights by Pressure Class and Size
Pipe Size150 #300 #600 #900 #1500 #2500 #
WNSOBLDWNSOBLDWNSOBLDWNSOBLDWNSOBLDWNSOBLD
1/2″211211222SEE 1500 # WEIGHTS544777
3/4″222333433SEE 1500 # WEIGHTS656888
1″322433444SEE 1500 # WEIGHTS988121111
1 1/2″433766878SEE 1500 # WEIGHTS131213252223
2″65597812910SEE 1500 # WEIGHTS252525423739
2 1/2″877121012181315SEE 1500 # WEIGHTS363635525556
3″1089151316231620312629484848948386
4″151317252227423741535354737373145125130
5″191520322835686368868387130130140245210225
6″241926423950818086110110115165165160380325345
8″393045675881120115140175170200275260300580485530
10″524370918112419017023026024529045543551010759301025
12″8064110140115185225200295325325415690580690152511001300
14″11090140180165250280230355400400520940NA975NANANA
16″140981802501902953903304954954256001250NA1300NANANA
18″1501302203202503954754006306806008501625NA1750NANANA
20″18016528540031550559051081083073010752050NA2225NANANA
22″2251853554653706407205901000NANANANANANANANANA
24″26022043058047579083073012501500140020253325NA3625NANANA

 

Conversion Data     
• 1 inch = 25.44 mm• 1 mm = 0.03937 inches• 1 lb/ft^2 = 47.88 Pa• 1 psi = 6.8948 Pa • x°F = (5/9)(x-32)°C
• 1 pound = 0.45359 Kg• 1 Kg = 2.20462 pounds• 1 Pa = 0.020885 lb/ft^2• 1 Pa = 0.00014504 psi • x°C = (9/5)x + 32°F

Blind Flange Pressure Ratings

Pressure-Temperature Ratings for ASTM Group 2-1.1 Materials

Working pressure by Classes, BAR

Temp

-29 °C

15030040060090015002500
3819.651.168.1102.1153.2255.3425.5
5019.250.166.8100.2150.4250.6417.7
10017.746.662.193.2139.8233388.3
15015.845.160.190.2135.2225.4375.6
20013.843.858.487.6131.4219365
25012.141.955.983.9125.8209.7349.5
30010.239.853.179.6119.5199.1331.8
3259.338.751.677.4116.1193.6322.6
3508.437.650.175.1112.7187.8313
3757.436.448.572.7109.1181.8303.1
4006.534.746.369.4104.2173.6289.3
4255.528.838.457.586.3143.8239.7
4504.62330.74669115191.7
4753.717.423.234.952.387.2145.3
5002.811.815.723.535.358.897.9
5381.45.97.911.817.729.549.2
Temp

°C

15030040060090015002500

 

Pressure-Temperature Ratings for ASTM Group 2-2.3 Materials

Working pressure by Classes, BAR

Temp

-29 °C

15030040060090015002500
3815.941.455.282.7124.1206.8344.7
5015.34053.480120.1200.1333.5
10013.334.846.469.6104.4173.9289.9
1501231.441.962.894.2157261.6
20011.229.238.958.387.5145.8243
25010.527.536.654.982.4137.3228.9
3001026.134.852.178.2130.3217.2
3259.325.5345176.4127.4212.3
3508.425.133.450.175.2125.4208.9
3757.424.83349.574.3123.8206.3
4006.524.332.448.672.9121.5202.5
4255.523.931.847.771.6119.3198.8
4504.623.431.246.870.2117.1195.1
Temp

°C

15030040060090015002500

ASME B16.5 Blind Flange Available Types

Blind Raised Face Flange Manufacturing CompanyRaised Faced Blind Flange Manufacturers
ANSI B16.5 Blind Flange Manufacturing CompanyBlind Flange Dimensions
ASME B16.5 Blind Flange ManufacturersANSI B16.5 Class 150 Blind Flange
Stainless Steel Blind Flange SuppliersSS Blind Flange Manufacturing Company
Blind Plate Flange DealerASME B16.47 Series A and B Blind Flange Exporter
ANSI B16.5 class 150 Blind Flange StockholderANSI 150 Blind Flange Distributors
Carbon Steel Blind Flange Manufacturing CompanyHigh Quality Blind Flange Manufacturer
ASTM A182 Stainless Steel Blind FlangeDuplex Steel Blind Flange Manufacturing Company
Super Duplex Steel Blind Forged FlangeCopper Nickel Blind Pipe Flange
High Nickel Alloy Blind Flange ManufacturersHastelloy Flat Faced Blind Flange Stockist
Titanium ASME B16.47 Series A and B Blind FlangeInconel Blind Flange

 

Blind Flange Price List

Blind Flange typeBlind Flange Price in USD
Stainless Steel Blind FlangeUSD $ 71.02 /Kg
Carbon steel Blind FlangeUSD $27.80 /Kg
Alloy steel Blind FlangeUSD $ 32.75 /Kg
ANSI b16 5 Blind FlangeUSD $ 23.99 /Kg
ASME b16.47 Blind FlangeUSD $ 60.62 /Kg

 

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