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Email: sales@neminox.com

 

ISO Approved Manufacturer & Exporter of Blind Flanges / BLRF Flanges.

Blind Flanges / BLRF Flanges

Neminox Steel & Engineering Co. are Manufacturer, Exporter and Supplier of Blind Flanges. ANSI B 16.5 Blind Flanges are ideal for lower pressure applications. Blind Flanges are used on heat coupling of pipes and are customized as per the specifications of our clients. Blind Flanges are made using premium best quality materials.

 

Size : 1/8" NB TO 48"NB.
Class : 150#, 300#,400 #,600#,900#, 1500# & 2500 #.
Standards : ANSI : ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655,   DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633,   DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673
B.S : BS4504 , BS4504, BS1560, BS10
Type : Threaded, Slip-On, Welding Neck

 

Grade:

Stainless Steel Blind Flanges:

ASTM A 182, A 240, F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L,

Nickel Alloys Blind Flanges:

Monel (400 & K500)

Inconel (600, 601, 625 & 825)

Incolloy (800, 800H)

Alloy 20

Cupro Nickel (90/10, 70/30, 66/30/2/2)

Hastelloy (C-4, C-22, C276, B-2)

Nickel (200 / 201 / 205)

Duplex Steel

SS 904L

Titanium (1 & 2) Etc.

Carbon Steel Blind Flanges:

ASTM A 105, ASTM A 181

Alloy Steel Blind Flanges:

ASTM A 182, GR F1, F11, F22, F5, F9, F91

Copper Alloys Blind Flanges:

UNS No. C 10100, 10200, 10300, 10800, 12000, 12200, 70600, 71500, UNS No. C 70600 (Cu -Ni- 90/10), C 71500 (Cu -Ni- 70/30) Copper, Brass & Gunmetal

 

Dimensions of Blind Flanges ASME B16.5

NPS ½

Class 150 300 400 600 900 1500 2500
Diameter - D 90 95 95 95 120 120 135
Height - B 9.6 12.7 14.3 14.3 22.3 22.3 30.2
11.2 14.3 20.7 20.7 28.7 28.7 36.6
Diameter - G 35.1 35.1 35.1 35.1 35.1 35.1 35.1
Diameter - K 60.3 66.7 66.7 66.7 82.6 82.6 88.9
Bolt Holes 4 4 4 4 4 4 4
Diameter - L 15.9 15.9 15.9 15.9 22.2 22.2 22.2
Stud Bolts Diameter x Length
Diameter (in) 1/2 1/2 1/2 1/2 3/4 3/4 3/4
Length (mm) 55 65 75 75 110 110 120

 

Dimensional Tolerances of Blind Flanges 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

Neminox Steel & Engineering Co. offers the wide range of Industrial metal and steel products like pipes, tubes, sheets, plates, rods, bars, weld, flanges, forges & pipe fittings in various materials. Since two decades, we have led as a reliable exporter, supplier, trader and stockist of industrial steels in the world-wide market. We can also provide custom required as per your cut & full length, sizes, hardness and grades at the most competitive prices. Neminox Steel & Engineering Co. is ISO 9001:2015 approved manufacturer in India. We export the standard quality with swift delivery services to countries like USA, Indonesia, Thailand, Mexico, Vietnam, Philippines, Malaysia, Algeria, UK, UAE, Saudi Arabia, Africa, European and Middle East Countries. Just contact us or put your requirement in our Enquiry Form, will get back to you quickly.

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