EN 1092-1 Pressed Collars | Type 36 & Type 37

Drawing, Construction & Function

As illustrated in Figure-1, EN 1092-1 Type 36 and Type 37 pressed collars consist of two sections: the straight pipe length and the lapped (or flared) pipe end. The major distinction between the two types is the total length: Type 36 has extended length compared to Type 37. That is why Type 36 is featured with “long neck”. Both collars shall always be used with a Type 02 loose plate flange, which slips over through the straight length till it reached the back face of the lapped end. Fasteners are applied to compress the jointing face of the collar against the gasket. Thus, Type 36 and Type 37 pressed collars have exactly the same function as that of an ASME B16.9 lap joint stub end. They are generally available in p/T ratings of PN 2.5, PN 6, PN 10 and PN 16, and in sizes from DN 10 to DN 200.

EN 1092-1 Loose Plate Flanges & Collars
Type 02	Type 04	Type 32	Type 33
Type 34	Type 35	Type 36	Type 37

*Click to view specifications for all EN 1092-1 loose plate flanges & collars.

Weld End Preparation

Two types of weld ends for pressed collar Type 36 and Type 37 may be furnished: Chamfer A and Chamfer B. For sizes no greater than DN 100, Chamfer A shall be furnished with square-cut ends; For sizes greater than DN 100, the welding ends shall be finished to a slight chamfer of 15° with tolerance of (+5°, -0°), which is defined as Chamfer B.

Material, Manufacture & Surface Finish

The EN 1092-1 Type 36 and Type 37 may be manufactured of austenitic stainless steels, duplex stainless steels (austenitic-ferritic), titanium, nickel, tantalum or other corrosion-resistant alloys. The Type 37 pressed collar is usually pressed from welded or seamless pipes, while the Type 36 pressed collar with long neck is usually manufactured by a forging process. Moreover, if welding is performed during the manufacture, it shall have full penetration. One of the NDT methods shall be conducted for the welds: visual inspection (VT), radiography (RT), ultrasonic testing (UT), penetrant testing (PT), and magnetic particle test (MT). The surface finishes for both outside diameter and center bore diameter shall be R_a≤25μm & R_z≤160μm. If it is manufactured by a pressing/lapping process, the surface finish for jointing faces shall be as formed. If it is manufactured by a forging process, the jointing face shall be furnished by a turning process with surface finish of 3.2μm≤R_a≤12.5μm & 12.5μm≤R_z≤50μm.

Dimensions, Masses & Tolerances

ΦA	PN 2.5 to PN 10
	Type 36	Type 37	Type 36	Type 37
	S	Sp	S	Sp
17.2	2	2	2	2
21.3	2	2	2	2
26.9	2.6	2.6	2	2
33.7	2.6	2.6	2	2
42.4	3.2	3.2	2	2
48.3	3.2	3.2	2	2
60.3	3.2	3.2	2	2
76.1	3.2	3.2	2	2
88.9	3.2	3.2	2	2
114.3	3.2	3.2	3.2	3.2
139.7	4	3.2	3.2	3.2
168.3	5	3.2	3.5	3.2
219.1	5	3.2	4.5	3.2
273	8	3.2	-	-
323.9	8	3.2	-	-
355.6	8	3.2	-	-
406.4	8	3.2	-	-
457	8	3.2	-	-
508	8	3.2	-	-

*Wall thickness (S, S_p) for Type 36 and Type 37, for PN 2.5 to PN 10.

ΦA	PN 16
	Type 36	Type 37	Type 36	Type 37
	S	Sp	S	Sp
17.2	2	2	2	2
21.3	2	2	2	2
26.9	2.6	2.6	2	2
33.7	2.6	2.6	2	2
42.4	3.2	3.2	2	2
48.3	3.2	3.2	2	2
60.3	3.2	3.2	2	2
76.1	3.2	3.2	2	2
88.9	3.2	3.2	2	2
114.3	3.2	3.2	3.2	3.2
139.7	4	3.2	3.5	3.2
168.3	5	3.2	4.5	3.2
219.1	6	3.2	5.6	3.2
273	10	3.2	-	-
323.9	10	4	-	-
355.6	10	4	-	-
406.4	10	4	-	-
457	-	-	-	-
508	-	-	-	-

*Wall thickness (S, S_p) for Type 36 and Type 37, for PN 16.

DN	D PN 2.5 mm	D PN 6 mm	D PN 10 mm	D PN 16 mm
10	35	35	40	40
15	40	40	45	45
20	50	50	58	58
25	60	60	68	68
32	70	70	78	78
40	80	80	88	88
50	90	90	102	102
65	110	110	122	122
80	128	128	138	138
100	148	148	158	158
125	178	178	188	188
150	202	202	212	212
200	258	258	268	268
250	312	312	320	320
300	365	365	370	378
350	415	415	430	438
400	465	465	482	490
450	520	520	532	550
500	570	570	585	610

*ΦD: facing diameter of the pressed collar, for both Type 36 & Type 37 of EN 1092-1.

DN	F for Type 36 mm PN 2.5	F for Type 37 mm PN 2.5	F for Type 36 mm PN 6	F for Type 37 mm PN 6
10	2	2.5	2	2.5
15	2	2.5	2	2.5
20	2.5	3	2.5	3
25	2.5	3	2.5	3
32	3	3	3	3
40	3	3	3	3
50	3	3	3	3
65	3	3	3	3
80	3	3	3	3
100	4	4	4	4
125	4	4	4	4
150	5	4	5	4
200	5	5	5	5
250	8	-	8	-
300	8	-	8	-
350	8	-	8	-
400	8	-	8	-
450	8	-	8	-
500	8	-	8	-

*F: collar thickness for Type 36 & Type 37, PN 2.5 & PN 6.

DN	F for Type 36 mm PN 10	F for Type 37 mm PN 10	F for Type 36 mm PN 16	F for Type 37 mm PN 16
10	2	2.5	2	2.5
15	2	2.5	2	2.5
20	2.5	3	2.5	3
25	2.5	3	2.5	3
32	3	3	3	3
40	3	3	3	3
50	3	3	3	3
65	3	3	3	3
80	3	3	3	3
100	4	4	4	4
125	4	4	4	4
150	5	4	5	5
200	5	5	6	6
250	8	-	10	-
300	8	-	10	-
350	8	-	10	-
400	8	-	10	-

*F: collar thickness for Type 36 & Type 37, PN 10 & PN 16.

DN	H for Type 36 mm PN 2.5	h for Type 37 mm PN 2.5	H for Type 36 mm PN 6	h for Type 37 mm PN 6
10	35	7	35	7
15	38	7	38	7
20	40	8	40	8
25	40	10	40	10
32	42	12	42	12
40	45	15	45	15
50	45	20	45	20
65	45	20	45	20
80	50	25	50	25
100	52	25	52	25
125	55	25	55	25
150	55	25	55	25
200	62	30	62	30
250	68	-	68	-
300	68	-	68	-
350	68	-	68	-
400	72	-	72	-
450	72	-	72	-
500	75	-	75	-

*H & h: length through hub of Type 36 & Type 37, PN 2.5 & PN 6.

DN	H for Type 36 mm PN 10	h for Type 37 mm PN 10	H for Type 36 mm PN 16	h for Type 37 mm PN 16
10	35	7	35	7
15	38	7	38	7
20	40	8	40	8
25	40	10	40	10
32	42	12	42	12
40	45	15	45	15
50	45	20	45	20
65	45	20	45	20
80	50	25	50	25
100	52	25	52	25
125	55	25	55	25
150	55	25	55	25
200	62	30	62	30
250	68	-	68	-
300	68	-	68	-
350	68	-	68	-
400	72	-	72	-

*H & h: length through hub of Type 36 & Type 37, PN 10 & PN 16.

DN	Mass for Type 36 kg PN 10	Mass for Type 37 kg PN 10	Mass for Type 36 kg PN 16	Mass for Type 37 kg PN 16
10	0.04	0.03	0.04	0.03
15	0.06	0.03	0.06	0.03
20	0.10	0.06	0.10	0.06
25	0.13	0.08	0.13	0.08
32	0.21	0.10	0.21	0.10
40	0.26	0.13	0.26	0.13
50	0.33	0.22	0.33	0.22
65	0.43	0.30	0.43	0.30
80	0.54	0.38	0.54	0.44
100	0.75	0.51	0.75	0.51
125	1.13	0.66	1.13	0.68
150	1.62	0.77	1.62	0.97
200	2.37	1.45	2.84	1.77
250	4.93	-	6.13	-
300	5.83	-	7.61	-
350	7.55	-	9.83	-
400	8.99	-	11.66	-
450	9.42	-	-	-
500	10.7	-	-	-

*The mass of PN 2.5 and PN 6 shall be the same as PN 10 of the same size.

Dimensional tolerances for EN 1092-1 Type 36 and Type 37: (1) For ΦA, if size ≤ DN150, ±0.75% and minimum ±0.3mm; if size > DN 150, ±1% and maximum ±3.0mm. (2) for wall thickness S, if size ≤ DN600, (-12.5%, +15%); if size > DN600, (-0.5mm, +15%). (3) For H & h, if size ≤ DN80, ±1.5mm; if DN80< size ≤ DN250, ±2.0mm; if size > DN250, ±3.0mm. (4) For F of Type 37, if F ≤ 5mm, ±0.20mm; if F > 5mm, ±0.30mm. For F of Type 36, if F ≤ 18mm, ±10%. (5)For D, if size ≤ DN250, (+2.0mm, -1.0mm); if size > DN250, (+3.0, -1.0).