Tee weld-on unions

M1AT10 C

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Tee or L-shaped DILO tube unions allow flexibility in tubing construction. Both versions are available with weld-on end for applications where highest vibration resistance is required or combined with a Whitworth screw-in thread which enables more variability in use.
Temperature resistance from -270 °C up to +500 °C, depending on the material used.

Advantages & functions

With three weld-on ends
Available for tube diameters from DN 3 up to DN 50
Temperature-resistant from -270 °C up to +500 °C dependant on the material used (At operating temperatures below -197°C, additional tests must be carried out on the raw material in accordance with the specifications of EN 13445 / AD2000 to ensure material integrity and suitability.)
Available for pressures up to 1.000 bar on request
Also available in other DIN EN materials
Seven-part union consisting of 3 weld-on stubs, 3 clamping nuts and 1 Tee-piece

M1AT Series for pressures up to PN 100:

DN	d₁	s	d₃	L₃	l₃	L₄	l₄	s₃	Order number
4	6	1,25	M 14x1,5	42	21	83	42	17	M1AT 4
6	8	1,5	M 16x1,5	50	27	99	54	19	M1AT 6
8	10	1,5	M 18x1,5	52	27	103	54	22	M1AT 8
10	12	1,75	M 20x1,5	57	30	113	60	24	M1AT 10
12	15	2	M 22x1,5	60	31	119	62	27	M1AT 12
16	18	2	M 26x1,5	64	33	127	66	32	M1AT 16
20	22	2	M 30x1,5	68	35	135	69	36	M1AT 20
25	28	2,5	M 36x2	84	47	167	94	41	M1AT 25
32	35	2,5	M 45x2	94	54	187	108	50	M1AT 32
40a	42	3	M 52x2	105	62	209	124	60	M1AT 40a
40	44	3	M 56x2	111	68	221	136	65	M1AT 40
50	57	4	M 68x2	128	80	255	160	75	M1AT 50

M2AT Series for pressures up to PN 200:

DN	d₁	s	d₃	L₃	l₃	L₄	l₄	s₃	Order number
3	6	1,5	M 14x1,5	48	23	96	46	19	M2AT 3
4	8	2	M 16x1,5	52	27	104	54	22	M2AT 4
6	10	2	M 18x1,5	52	27	104	54	22	M2AT 6
8	12	2	M 20x1,5	56	29	112	58	24	M2AT 8
10	13,5	1,75	M 22x1,5	62	31	124	62	27	M2AT 10
12	16	2,5	M 24x1,5	64	33	128	66	30	M2AT 12
16	20	2,5	M 30x2	70	34	140	68	36	M2AT 16
20	25	2,5	M 36x2	89	48	178	96	46	M2AT 20
25	30	3	M 42x2	98	54	196	108	50	M2AT 25
32	38	3,5	M 52x2	112	62	224	124	60	M2AT 32
40	44	4,25	M 56x2	123	68	246	136	65	M2AT 40
50	57	6	M 68x2	140	80	280	160	80	M2AT 50

M3AT Series for pressures up to PN 320:

DN	d₁	s	d₃	L₃	l₃	L₄	l₄	s₃	Order number
3	6	1,5	M 14x1,5	48	23	96	46	19	M3AT 3
4	8	2	M 16x1,5	52	27	104	54	22	M3AT 4
5	10	2,5	M 18x1,5	52	27	104	54	24	M3AT 5
6	12	3	M 20x1,5	59	30	118	60	27	M3AT 6
8	13,5	2,75	M 22x1,5	63	32	126	64	30	M3AT 8
10	16	3	M 24x1,5	68	33	136	66	32	M3AT 10
12	20	4	M 30x2	74	35	148	70	36	M3AT 12
16	25	4,5	M 36x2	92	49	184	98	46	M3AT 16
20	30	5	M 42x2	104	56	208	112	50	M3AT 20
25a	35	5,5	M 48x2	112	61	224	122	55	M3AT 25a
25	38	6	M 52x2	118	64	236	128	60	M3AT 25
32	44	6,75	M 60x2	134	73	268	146	70	M3AT 32

M6AT Series for pressures up to PN 640:

DN	d₁	s	d₃	L₃	l₃	L₄	l₄	s₃	Order number
4	10	3	M 20x1,5	56	30	112	60	27	M6AT 4
6	10	2	M 22x1,5	61	32	122	64	32	M6AT 6
8	13,5	2,75	M 26x1,5	80	45	160	90	36	M6AT 8
10	17	3,5	M 30x2	84	45	168	90	41	M6AT 10
12	20	4	M 33x2	92	45	184	90	46	M6AT 12
16	25	5	M 42x2	105	55	210	110	55	M6AT 16
20	30	6	M 45x2	131	65	262	130	60	M6AT 20
25	38	7,5	M 52x2	148	75	296	150	65	M6AT 25

M10AT Series for pressures up to PN 1000:

DN	d₁	s	d₃	L₃	l₃	L₄	l₄	s₃	Order number
4	10	3,25	M 22x1,5	69	35	138	69	32	M10AT 4
6	13,5	3,75	M 26x1,5	87	45	174	90	36	M10AT 6
8	17	4,5	M 30x2	102	52	204	104	41	M10AT 8
10	20	5	M 33x2	103	52	206	104	46	M10AT 10
12	25	6,5	M 42x2	127	64	254	128	55	M10AT 12
16	30	8	M 45x2	131	65	262	130	60	M10AT 16
20	38	10	M 52x2	155	75	310	150	65	M10AT 20

For orders on individual parts we need the following information:

Pieces	Component	Designation	Order number	Material number
3	1	Weld-on stub	(Series)-(DN)- 1	___________________
3	2	Clamping nut	(Series)-(DN)- 2	___________________
1	20	Tee piece	(Series)-(DN)- 20	___________________

Technical data

Nominal pressure (in bar)	100 PN
Nominal width (in mm)	10 DN
Outer diameter of welding nozzle	12 mm
Wandstärke	1.75 mm
d3	M 20x1.5
L3	57 mm
l3	30 mm
L4	113 mm
l4	60 mm
s3	24 Wrench size
Material according to DIN EN	1.4571
Material description	Stainless steel

Tee weld-on unions

M1AT10 C

Advantages & functions

Technical data

Technical drawing

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