Blind Flanges / BLRF Flanges Manufacturer, Supplier

PRODUCTS STAINLESS STEEL,INCONEL,HASTELLOYS, MONEL

FLANGES

Blind Flanges / BLRF Flanges

Neelam Forge is focused on producing and providing high-quality stainless steel blind flanges, which are used to cover or seal the end of a pipe in a piping system. Our blind flange is particularly suited for high-temperature and pressure applications because it is constructed of a strong, long-lasting stainless steel composition.

Neelam Forge is the Manufacturer, Supplier, and Exporter of ASME 16.5 Blind Flanges / BLRF Flanges in Mumbai, Delhi, Chennai, Vijayawada, Indore, Surat, Visakhapatnam, and all over India. Blind Flanges are commonly used in petrochemical, pipe engineering, public services & water works.

This flange is used to blank off pipelines, valves, and pumps, it can also be used as an inspection cover. These are available in a wide variety of sizes and applications. To make these products highly suitable for various industrial applications, we are offering them in customized designs.

Size	:	½” (15 NB) to 48″ (1200NB)
Class	:	150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
Material	:	Grade
In Form	:	LAP Joint, Threaded, Reducing, SORF, WNRF, BLRF, SWRF, Spectacle, etc
Specialize	:	As per drawing
Standard	:	ANSI B16.5, ANSI B16.47, ANSI B16.36, ANSI B16.48, BS 4504, EN1092, UNI 2277/2278, DIN

Connection Type	:	Raised Face, Flat Face, Ring Type Joint, Lap-Joint Face, Large Male-Female, Small Male-Female, Large
		Tongue & Groove, Small Tongue & Groove.
Type of Flanges	:	Blind Raise Face -BLRF, Weld Neck Flanges – WNRF, Socket Weld Flanges – SWRF, Slip On Raise Face –
		SORF, Spectacle Blind, Ring Joint, Large Dia Flanges, Orifice Flanges, Girth Flange, Lap Joint Flanges,
		Screwed (Threaded) Flanges, Long Weld Neck Flanges, Reducing.
Stainless Steel Blind Flanges	:	ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L
Carbon Steel Blind Flanges	:	ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60,
		F65, F70
Alloy Steel Blind Flanges	:	ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
Duplex Steel Blind Flanges	:	ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61, 2205 (UNS No. S31803), 2507 (UNS No.
		S32750)
Nickel Alloy Blind Flanges	:	Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500
		(UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600
		(UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276
		(UNS No. N10276), Alloy 20 (UNS No. N08020), Titanium (Grade I & II).
Copper Alloy 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).

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
Height – B	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

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

Flanges Manufacturer in Mumbai

PRODUCTS STAINLESS STEEL,INCONEL,HASTELLOYS, MONEL

FLANGES

Blind Flanges / BLRF Flanges

Dimensions of Blind Flanges ASME B16.5

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