Types of EN 1092-1 Flange

EN 1092-1 flange is widely used in various industries worldwide. This flange is widely used in industries such as oil, gas, mining, and commercial industries, and is now considered equivalent to ANSI flange in ANSI B16.5.

EN 1092-1 flange standard is designed not only for steel flanges but also for other types of flanges. For example, EN 1092-2 is for iron flanges, EN 1092-3 is for alloy flanges, and EN 1092-4 is for aluminum alloy flanges. European standard EN 1092-1 flanges establishes the requirements for steel flanges based on their nominal pressure (PN) and dimension (DN).

The nominal pressure ratings, such as PN6 PN10 PN16 PN20, PN50, PN110, PN150, PN260, and PN420 for steel En 1092-1 flanges, are designed to be interchangeable with flanges based on American standards, such as ASME B16.5 and MSS SP44.

Types of EN1092-1 Flange

Similar to the ASME standard, the EN 1092-1 standard has the basic flange forms. Such as blind flange, weld neck flange,lap joint flange,threaded Flange,pressed collars,weld on collar,and adapter flange such as flange coupling GD press fittings. The different forms of flanges within the EN1092-1 is indicate within the flange name through the type.

Design	According to EN Type
Weld Neck Flange	Type 11
Blind Flange	Type 05
Threaded Flange	Type 12
Slip on Flange	Type 01
Lapp Joint Flange	Type 02&Type 04

Similar to ASME flanges, EN1092-1 flanges,have several different versions of raised or none raised faces. According to the European form the seals are indicate by different form:

types of Contact Faces	DIN EN 1092-1
Without Raised Face	Form A
Raised Face(R z=160 Mechanical Turned)	Form B1
Raised Face(R z=40 Mechanical Turned)	Form B1
Raised Face(R z=16 Mechanical Turned)	Form B2
Tongue According to DIN2512	Form C
Groove According to DIN 2512	Form D
Male According to DIN 2513	Form E
Female According toDIN2513	Form F
Female According to DIN 2514	Form G
Male According to DIN 2514	Form H

Surface Roughness

Roughness Design (Form)	Ra (in Micrometers)		R z (in Micrometers)		Old Norm
	Min.	Max.	Min.	Max.
A, B1, E, F	3.2	12.5	12.5	50	Rz 40 – 160
B2, C, D, G, H	0.8	3.2	3.2	12.5	R z Max. 16

Specification

Size	DN 10~DN 4000
Pressure	PN 6, 10, 16, 25, 40, 64,100
Coating	Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized
Test Certificates	EN 10204/3.1B，Raw Materials Certificate，100% Radiography Test Report，Third Party Inspection Report, etc
Flange Face Type	Raised Face Flange (RF), Ring Type Joint Flange (RTJ), Flat Face Flange (FF), Large Male-Female Flange (LMF), Lap-Joint Face Flange (LJF), Small Male-Female Flange (SMF), Small Tongue Flange, Large Tongue & Groove Flange
Test	Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector
Equipment	Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc
Uses & application	Bitumen up graders. Heavy oil refineries.Nuclear power (mostly seamless).Petrochemicals and acids.

Dimension and Weight of EN1092-1 Type 01 PN16 Flange

Rated Diameter	Pipe	Flange				Screws			Weight (7,85 Kg/dm3)
		d1	k	D	b	d2	Thread	Bolt holes	KG
10	17,2	18,0	60	90	14	14	M12	4	0,602
15	21,3	22,0	65	95	14	14	M12	4	0,668
20	26,9	27,5	75	105	16	14	M12	4	0,933
25	33,7	34,5	85	115	16	14	M12	4	1,106
32	42,4	43,5	100	140	18	18	M16	4	1,816
40	48,3	49,5	110	150	18	18	M16	4	2,075
50	60,3	61,5	125	165	20	18	M16	4	2,723
65	76,1	77,5	145	185	20	18	M16	4	3,310
80	88,9	90,5	160	200	20	18	M16	8	3,592
100	114,3	116,0	180	220	22	18	M16	8	4,375
125	139,7	141,5	210	250	22	18	M16	8	5,394
150	168,3	170,5	240	285	24	22	M20	8	7,123
200	219,1	221,5	295	340	26	22	M20	12	9,705
250	273,0	276,5	355	405	29	26	M24	12	14,164
300	323,9	327,5	410	460	32	26	M24	12	18,928
350	355,6	359,0	470	520	35	26	M24	16	28,118
400	406,4	411,0	525	580	38	30	M27	16	35,754
450	457,0	462,0	585	640	42	30	M27	20	45,992
500	508,0	513,5	650	715	46	33	M30	20	63,832
600	610,0	616,5	770	840	55	36	M33	20	101,285
700	711,0	714,2	840	910	63	36	M33	24	111,103
800	813,0	815,8	950	1025	74	39	M36	24	158,555
900	914,0	917,4	1050	1125	82	39	M36	28	192,239
1000	1016,0	1019,0	1170	1255	90	42	M39	28	269,554

Material and Grade of EN 1092-1 Flange

Stainless Steel

ASTM A/SA182 F304, F304L, F316, F316L, F321, F904L, F310S. DIN 1.4301, DIN 1.4306, DIN 1.4401, DIN 1.4404, DIN 1.4308, DIN 1.4408, DIN 1.4306, DIN 1.4409

Carbon Steel

ASTM/ASME A/SA105 A/SA105N. DIN 1.0402, DIN 1.0460, DIN 1.0619. ASTM A350 LF2 / LF3, ASTM A694 / A694 F52 / F56 / F60 / F65 / F70 / F80

Alloy Steel

ASTM A182 / ASME SA182 F5, F9, F11, F12, F22, F91

Nickel Weld Neck

ASTM B564 / ASME SB564, Nickel 200, Nickel 201, Nickel 205, Nickel 205

Hastelloy

ASTM B564 / ASME SB564, Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3

Duplex Steel

ASTM A182 F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61

Aluminium

5052 /6061/ 6063 / 2017 / 7075

Advantages

High Strength and Durability: suitable for use in high-pressure and high-temperature environments.

Variety of types available: easy to connect to pipes and other fittings.

Corrosion resistance properties: suitable for use in different environments.

Cost-effective and versatile: suitable for a wide range of applications and industries.

Leak-proof joints: provide safety in high-pressure and high-temperature application.

December 18, 2024