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Stainless Steel Blind Flange

Trusted Manufacturer of ASME 16.5 Blind Flange in India, At Affordable Price


Stainless Steel Blind Flange


ASME B16.5 Blind Flanges dimensions are similar to any other flange types. All the raw materials used are of high quality and is thus used in any other applications like chemical, mechanical and other industries. The main use of this flange is to block off a section of pipe or a nozzle on a vessel which is not used. Stainless steel blind flange dimensions includes many other factors like pipe normal diameter, outer diameter flange, thickness of flange, diameter of raised face, diameter of bolt circle and many other factors.

Carbon steel blind flange raised face is successful in bearing all the high pressure and s used in applications like hydraulic systems and many more. The performance of this is excellent and has perfect corrosion resistance and durability is high as compared to any other flange. Blind flange manufacturers in India is available on a large scale. But the one which is trust-worthy, and top most one is regal sales corp. We are the highly professional and leading firm in India.

Our team is good enough to handle the manufacturing process and provides the product on time. Blind flange sizes are available differently and we can say that people can make the best usage of it by ordering any kind of sizes they require.

Stainless Steel Blind Flange Supplier in India offers the most common types with durability and corrosion resistance.

Regal Sales Corporation has sales in Qatar, Dubai, Oman, Lebanon, Turkey, Malaysia, Belgium, Germany, Netherlands etc


Table of Content


fasteners types


Stainless Steel Blind Flanges

Carbon Steel Slip On Flanges

Carbon Steel blind flange Dimensions

Stainless Steel Slip On Flanges

ASME B16.5 blrf flange

ASTM A105 sorf Flange


Get BLRF Flange & SS Raised Face Blind Flanges Available in Different Sizes, Check Specification


ASME B16.5 Blind Flange Specification


Size

Blind flange Size Range :

  • NPS: ½" 48 "
  • 15NB – 1200NB
  • DN15 ~ DN1500
Features

Features

  • Material Composition
  • Durability
  • Functionality
  • Design
  • Ease of Installation
Advantages

Advantages

  • Corrosion Resistance
  • Leak-Proof Seal
  • Versatility
  • Aesthetic Appeal

Wall Thickness

Wall Thickness

  • SCH 60/ 80/ 100
  • SCH 160/ 180
  • SCH 10/ 20/ 40
  • SCH 120/ 140
Standard

International Standard

  • ASME B16.48
  • ASME B16.47
  • ASME B16.5
  • ASME B16.36
Disadvantages

Disadvantages

  • Higher Initial Cost
  • Weight
  • Thermal Expansion
  • Environmental Impact

Class

Pressure Class

  • 1500 To 2500#
  • 125 To 150#
  • 300 To 400#
  • 600 To 900#
Method

Manufacturing Technique

  • Cutting
  • Heat Treatment
  • Material Selection
  • Casting or Forging
coating

Threads Types

  • BSPP (Male & female)
  • MPT/ BSPT (Female)
  • NPT
  • BSP
  • MNPT (Male)

Applications

Installations

  • Preparation
  • Positioning the Blind Flange
  • Bolting the Flange
  • Leak Testing
  • Safety Considerations
Testing Methods

Testing Requirements

  • Visual Inspection
  • Dimensional Inspection
  • Hydrostatic Pressure Test
  • Leak Testing
  • Bolt Torque Testing
Packaging

Available Packaging

  • Bubble Wrap
  • Wooden Crates or Boxes
  • Shrink Wrapping
  • Wooden Pallets
  • Metal or Plastic Banding


Get Blind Flange & Stainless Steel BLRF Flanges Available in Various Types


Most Common types of Stainless Steel Asme B16.5 Blind Flange


SS Blind Pipe Flange

SS Blind Pipe Flange

Stainless Blrf Flange

Stainless Blrf Flange

Inox Steel Dummy Flange

Inox Steel Dummy Flange

Stainless Steel Raised Face Blind Flange

Stainless Steel Raised Face Blind Flange

Chrome Steel Flat Face Blind Flange

Chrome Steel Flat Face Blind Flange

Chrome Nickel Steel Threaded Blind Flange

Chrome Nickel Steel Threaded Blind Flange

Austenitic Stainless Steel Forged Blind Flange

Austenitic Stainless Steel Forged Blind Flange

Martensitic Stainless Steel Rf Blind Flange

Martensitic Stainless Steel Rf Blind Flange

Ferritic Stainless Steel Blank Flange

Ferritic Stainless Steel Blank Flange

Martensitic Steel Blind Plate

Martensitic Steel Blind Plate

Austenitic Steel Tapped Blind Flange

Austenitic Steel Tapped Blind Flange

Stainless Steel Slip on Threaded Flange

Stainless Steel Blind Flange With Threaded Hole

Stainless Steel Spider Blind Flange

Stainless Steel Spider Blind Flange

ASME B16.5 Reducing Blind Flange

ASME B16.5 Reducing Blind Flange

Class 600 Ported Blind Flange

Class 600 Ported Blind Flange

ASME B16.5 Double Face Blind Flange

ASME B16.5 Double Face Blind Flange


Bolt Size Chart of Stainless Steel Class 600 Blind Flange


Size(Inch) RF Stud Length Number of Bolts
2 110 8
2 1/2 120 8
3 125 8
3 1/2 140 8
4 145 8
5 165 8
1 90 4
14 235 20
6 170 12
1/2 75 4
12 220 20
3/4 90 4
8 190 12
10 215 16
1 1/4 95 4
18 275 20
1 1/2 110 4
20 285 24
16 255 20
24 330 24

Dimensions Schedule for Class 150 Blind Flange


Dimensions Schedule for Class 150 Blind Flange

ø g b D k l Hole Kilogram
20" 584,2 42,9 698,5 635,0 31,7 20 124,000
1" 50,8 14,3 107,9 79,4 15,9 4 0,900
1 1/4" 63,5 15,9 117,5 88,9 15,9 4 1,300
24" 692,1 47,6 812,8 749,3 34,9 20 188,000
1 1/2" 73,0 17,5 127,0 98,4 15,9 4 1,600
2" 92,1 19,0 152,4 120,6 19,0 4 2,600
1/2" 34,9 11,1 88,9 60,3 15,9 4 0,400
3/4" 42,9 12,7 98,4 69,8 15,9 4 0,700
4" 157,2 23,8 228,6 190,5 19,0 8 7,100
5" 185,7 23,8 254,0 215,9 22,2 8 9,000
18" 533,4 39,7 635,0 577,8 31,7 16 97,000
2 1/2" 104,8 22,2 177,8 139,4 19,0 4 4,100
8" 269,9 28,6 342,9 298,4 22,2 8 21,000
14" 412,7 34,9 533,4 476,2 28,6 12 59,000
3" 127,0 23,8 190,5 152,4 19,0 4 5,000
12" 381,0 31,7 482,6 431,8 25,4 12 45,000
3 1/2" 139,7 23,8 215,9 177,8 19,0 8 6,400
6" 215,9 25,4 279,4 241,3 22,2 8 11,800
16" 469,9 36,5 596,9 539,9 28,6 16 79,000
22" 641,2 46,0 749,3 692,1 34,9 20 151,000
10" 323,4 30,2 406,4 361,9 25,4 12 30,000

Pressure Rating Chart of Inox Steel Blind Flange


Stainless Steel Blind Flange Manufacturer in India provides flanges with pressure ratings ranging from 150 to 2500 PSI


Pressure Ratings Blind Flange
Pipe Size Class 600 Class 300 Class 2500 Class 150 Class 1500 Class 900
WN BLD SO WN BLD SO WN BLD SO WN BLD SO WN BLD SO WN BLD SO
2" 12 10 9 9 8 7 42 39 37 6 5 5 25 25 25 25 25 25
12" 225 295 200 140 185 115 1525 1300 1100 80 110 64 690 690 580 325 415 325
1" 4 4 4 4 3 3 12 11 11 3 2 2 9 8 8 9 8 8
4" 42 41 37 25 27 22 145 130 125 15 17 13 73 73 73 53 54 53
5" 68 68 63 32 35 28 245 225 210 19 20 15 130 140 130 86 87 83
1/2" 2 2 2 2 1 1 7 7 7 2 1 1 5 4 4 5 4 4
3/4" 4 3 3 3 3 3 8 8 8 2 2 2 6 6 5 6 6 5
6" 81 86 80 42 50 39 380 345 325 24 26 19 165 160 165 110 115 110
20" 590 810 510 400 505 315 -- -- -- 180 285 165 2050 2225 -- 830 1075 730
1 1/2" 8 8 7 7 6 6 25 23 22 4 3 3 13 13 12 13 13 12
8" 120 140 115 67 81 58 580 530 485 39 45 30 275 300 260 175 200 170
22" 720 1000 590 465 640 370 -- -- -- 225 355 185 -- -- -- -- -- --
14" 280 355 230 180 250 165 -- -- -- 110 140 90 940 975 -- 400 520 400
2 1/2" 18 15 13 12 12 10 52 56 55 8 7 7 36 35 36 36 35 36
16" 390 495 330 250 295 190 -- -- -- 140 180 98 1250 1300 -- 495 600 425
10" 190 230 170 91 124 81 1075 1025 930 52 70 43 455 510 435 260 290 245
18" 475 630 400 320 395 250 -- -- -- 150 220 130 1625 1750 -- 680 850 600
3" 23 20 16 15 16 13 94 86 83 10 9 8 48 48 48 31 29 26
24" 830 1250 730 580 790 475 -- -- -- 260 430 220 3325 3625 -- 1500 2025 1400

View SS Class 150 Blind Flange Dimension & Weight Chart

ASME B16.5 Blind Flange Weight Chart


Stainless Steel Blind Flange Manufacturer in India offers a superior weight chart for flanges


Pipe Size (Inch) Thickness D (mm) Outside Diameter A (in millimeter) DN (mm) Blind Flange (Kg)
1 14.2 108 25 0.9
3/ 4 12.7 98.6 20 0.6
3 23.9 190.5 80 4.9
3 1/ 2 23.9 215.9 90 6.2
4 23.9 228.6 100 7.0
24 47.8 812.8 600 185.0
5 23.9 254 125 8.6
1 1/ 4 15.7 117.3 32 1.2
6 25.4 279.4 150 11.3
20 42.9 698.5 500 122.0
2 1/ 2 22.4 177.8 65 3.9
12 31.8 482.6 300 43.2
1 1/ 2 17.5 127 40 1.5
14 35.1 533.4 350 58.1
2 19.1 152.4 50 2.4
8 28.4 342.9 200 19.6
10 30.2 406.4 250 28.6
18 39.6 635 450 93.7
1/ 2 11.2 88.9 15 0.4
16 36.6 596.9 400 76.1

Torque Chart of Stainless Steel Blind Flange


Size in Inches Size(mm) Radial Projection(Maximum)
Deep Than Bottom Serrations(mm) Not Deep Than Bottom Serrations(mm)
2 50 1.5 3.0
1 25 1.5 3.0
3 80 1.5 4.5
3 1/2 90 3.0 6.0
4 100 3.0 6.0
14 350 4.5 8.0
5 125 3.0 6.0
2 1/2 65 1.5 3.0
6 150 3.0 6.0
3/4 20 1.5 3.0
8 200 4.5 8.0
20 500 6.0 12.0
1 1/2 40 1.5 3.0
24 600 6.0 12.0
12 300 4.5 8.0
1/2 15 1.5 3.0
16 400 4.5 10.0
1 1/4 32 1.5 3.0
10 250 4.5 8.0
18 450 6.0 12.0

Gasket Material Table of ASME B16.5 Blind Flange


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

Equivalent material Grades of Stainless Steel Slip on Pipe Flange


STANDARD BS AFNOR EN GOST WERKSTOFF NR. UNS JIS
SS 304 304S31 Z7CN18‐09 X5CrNi18-10 08Х18Н10 1.4301 S30400 SUS 304
SS 316 316S31 Z7CND17‐11‐02 X5CrNiMo17-12-2 - 1.4401 S31600 SUS 316

Physical Properties of ANSI B16.5 Blind Flange


Property Stainless Steel 304 Stainless Steel 316
Specific Heat Capacity 500 J/kg·K 500 J/kg·K
Electrical Resistivity 72 x 10^-6 Ω·m 72 x 10^-6 Ω·m
Melting Point 1400 - 1450°C 1375 - 1400°C
Thermal Conductivity 16 W/m·K 16 W/m·K
Density 7.93 g/cm³ 8.00 g/cm³
Poisson's Ratio 0.27 - 0.30 0.27 - 0.30
Hardness (Rockwell B) 70 HRB 80 HRB
Coefficient of Thermal Expansion 16.0 x 10^-6 /°C 16.0 x 10^-6 /°C

Get MSS SP44 Stainless Steel BLRF Flanges with High Tensile Strength, Check Mechanical Properties

Austenitic Steel Slip on Threaded Flange Mechanical Properties


Property Stainless Steel 304 Stainless Steel 316
Tensile Strength 520 - 720 MPa (75,400 - 104,400 psi) 515 - 760 MPa (74,800 - 110,200 psi)
Yield Strength 210 - 450 MPa (30,400 - 65,300 psi) 290 - 550 MPa (42,100 - 79,800 psi)
Elongation (in 50 mm) 40% (minimum) 40% (minimum)
Modulus of Elasticity 193 GPa (28 x 10^6 psi) 193 GPa (28 x 10^6 psi)

Raised Face Blind Flange Chemical Composition


Grade Si P C N Mn Mo Ni S Cr
SS 304 0.75 max 0.040 max 0.08 max 2 max – 8 – 11 0.030 max 18 – 20
SS 316 0.75 max 0.045 max 0.08 max 0.1 max 2 max 2 – 3 10 – 14 0.030 max 16 – 18

How Do You Install the SS Blind Flange in a Pipe?


Step
1. Clean Pipe
2. Inspect Flange
3. Place Flange
4. Hand-tighten Bolts
5. Tighten Bolts
6. Check for Leaks
7. Confirm Tightness

What is the Pressure for a Stainless Steel Blind Flange?


Pressure Class Temperature (°F) Pressure Rating (psi)
150# -20 to 100°F 285
300# -20 to 100°F 740
600# -20 to 100°F 1,480
900# -20 to 100°F 2,220
1500# -20 to 100°F 3,700
2500# -20 to 100°F 6,100

What Thickness of Blind Plate Flanges Are Used in a Low Pressure Area?


  • ➤ Low-pressure application: Up to 150 psi.
  • ➤ Thickness range: Typically 0.5" to 1" (12.7 mm to 25.4 mm).
  • ➤ Standard flanges: ANSI B16.5.
  • ➤ Material: Carbon steel, stainless steel.
  • ➤ Flange class: Class 150 (thinner than higher pressure classes).

What is the Difference Between a Blind Flange and a Standard Flange?


Aspect Blind Flange Standard Flange
Function Seals pipe ends Joins pipes or components
Shape Solid, no hole Central hole for connection
Use Closes pipe ends Connects pipes/equipment
Pressure Rating Often higher Varies with application
Material Thicker, for sealing Varies based on application
Installation Fixed at the end of pipes Placed between pipes
Cost Generally more expensive Typically less expensive
Size Range Available in large sizes Available in various sizes

Materials