These Flanges are used as a termination point to a piping system. Blind-Flanges have a blank surface with bolt point to fit a pipe.

    Flange JPI Class 150 BL RF A20 B3 Pipe Flanges And Fittings

    The blind flange is used to close ends of piping systems. It is a kind of round plate with no center hold but with all the proper bolt holes. This blind flange is available in various sizes and materials and is used to provide positive closer on the ends of pipes, valves or equipment nozzles. This flange helps in easy access to a line once it has been sealed. The blind flange is sometimes custom made or machined to accept a nominal sized pipe to which reduction is being made.Welded Pipe

   Blind Flanges are commonly used in petrochemical, pipe engineering, public services & water works.
   Blind pipe flanges are often used for high pressure applications.Oil pipe
   This reduction can be a threaded reduction or welded reduction.
Size: 1/2” to 60”, DN 12mm to DN 1500mm
Pressure class: Class 150 to Class 2,500, PN 2.5 to PN 250
Facing: RF / RTJ
Material:Aolly Pipe
Cabon steel: A105, A350 LF2
Stainless steel: A182 F304/F304L/F316/F316L/F321
Alloy steel: F11, F12

ASME/ANSI B16.5 Class 150 BL

Nominal Pipe Size	Outside Diameter of Flange	Diameter of Raised Face	Thickness of Flanges Min.	Diameter of Bolt Circle	Diameter of Bolt Holes	Number of Bolts	Approximate Weight kgs
NPS	O	R	tf	W	I	n
1/2	90	34.9	9.6	60.3	15.9	4	0.44
3/4	100	42.9	11.2	69.9	15.9	4	0.64
1	110	50.8	12.7	79.4	15.9	4	0.90
1 1/4	115	63.5	14.3	88.9	15.9	4	1.13
1 1/2	125	73.0	15.9	98.4	15.9	4	1.50
2	150	92.1	17.5	120.7	19.1	4	2.38
2 1/2	180	104.8	20.7	139.7	19.1	4	4.09
3	190	127.0	22.3	152.4	19.1	4	4.97
3 1/2	215	139.7	22.3	177.8	19.1	8	6.20
4	230	157.2	22.3	190.5	19.1	8	7.18
5	255	185.7	22.3	215.9	22.2	8	8.83
6	280	215.9	23.9	241.3	22.2	8	11.55
8	345	269.9	27.0	298.5	22.2	8	20.07
10	405	323.8	28.6	362.0	25.4	12	28.87
12	485	381.0	30.2	431.8	25.4	12	44.18
14	535	412.8	33.4	476.3	28.6	12	59.07
16	595	469.9	35.0	539.8	28.6	16	76.36
18	635	533.4	38.1	577.9	31.8	16	94.51
20	700	584.2	41.3	635.0	31.8	20	123.94
24	815	692.2	46.1	749.3	34.9	20	187.90

ASME B16.47 Series B/API 605 Class 600 BL