L-screw-in unions with Whitworth thread

M3BL5G A

Add to cart Download data sheet Legacy online catalogue

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 two weld-on ends and one screw-in thread
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.)
Also available in other DIN EN materials
Five-part union consisting of 2 weld-on stubs, 2 clamping nuts and 1 screw-in L piece

M1BL-G Series for pressures up to PN 100:

DN	d₁	s	d₃	d₄	d₇	L₃	l₃	l₅	i₂	a₂	s₃	Order number
4	6	1,25	M 14x1,5	G 1/8 A	14	42	21	16	8	1,5	17	M1BL 4 G
6	8	1,5	M 16x1,5	G ¼ A	18	50	27	18	12	2	19	M1BL 6 G
8	10	1,5	M 18x1,5	G ¼ A	18	52	27	18	12	2	22	M1BL 8 G
10	12	1,75	M 20x1,5	G 3/8 A	22	57	30	19	12	2,5	24	M1BL 10 G
12	15	2	M 22x1,5	G ½ A	26	60	31	19	14	3	27	M1BL 12 G
16	18	2	M 26x1,5	G ½ A	26	64	33	23	14	3	32	M1BL 16 G
20	22	2	M 30x1,5	G ¾ A	32	68	35	28	16	3	36	M1BL 20 G
25	28	2,5	M 36x2	G 1 A	39	84	47	36	18	3	41	M1BL 25 G
32	35	2,5	M 45x2	G 1 ¼ A	49	94	54	34	20	3	50	M1BL 32 G
40a	42	3	M 52x2	G 1 ½ A	55	105	62	40	22	3	60	M1BL 40a G
40	44	3	M 56x2	G 1 ½ A	55	111	68	46	22	3	65	M1BL 40 G
50	57	4	M 68x2	G 2 A	68	128	80	56	24	3,5	75	M1BL 50 G

M2BL-G Series for pressures up to PN 200:

DN	d₁	s	d₃	d₄	d₇	L₃	l₃	l₅	i₂	a₂	s₃	Order number
3	6	1,5	M 14x1,5	G ¼ A	18	48	23	13	12	2	19	M2BL 3 G
4	8	2	M 16x1,5	G ¼ A	18	52	27	19	12	2	22	M2BL 4 G
6	10	2	M 18x1,5	G 3/8 A	22	52	27	19	12	2,5	22	M2BL 6 G
8	12	2	M 20x1,5	G 3/8 A	22	56	29	20	12	2,5	24	M2BL 8 G
10	13,5	1,75	M 22x1,5	G ½ A	26	62	31	21	14	3	27	M2BL 10 G
12	16	2,5	M 24x1,5	G ½ A	26	64	33	25	14	3	30	M2BL 12 G
16	20	2,5	M 30x2	G ¾ A	32	70	34	29	16	3	36	M2BL 16 G
20	25	2,5	M 36x2	G 1 A	39	89	48	36	18	3	46	M2BL 20 G
25	30	3	M 42x2	G 1 ¼ A	49	98	54	34	20	3	50	M2BL 25 G
32	38	3,5	M 52x2	G 1 ½ A	55	112	62	40	22	3	60	M2BL 32 G
40	44	4,25	M 56x2	G 1 ¾ A	62	123	68	44	24	3,5	65	M2BL 40 G
50	57	6	M 68x2	G 2 A	68	140	80	56	24	3,5	80	M2BL 50 G

M3BL-G Series for pressures up to PN 320:

DN	d₁	s	d₃	d₄	d₇	L₃	l₃	l₅	i₂	a₂	s₃	Order number
3	6	1,5	M 14x1,5	G ¼ A	18	48	23	14	12	2	19	M3BL 3 G
4	8	2	M 16x1,5	G ¼ A	18	52	27	19	12	2	22	M3BL 4 G
5	10	2,5	M 18x1,5	G 3/8 A	22	52	27	19	12	2,5	24	M3BL 5 G
6	12	3	M 20x1,5	G 3/8 A	22	59	30	21	12	2,5	27	M3BL 6 G
8	13,5	2,75	M 22x1,5	G ½ A	26	63	32	21	14	3	30	M3BL 8 G
10	16	3	M 24x1,5	G ½ A	26	68	33	25	14	3	32	M3BL 10 G
12	20	4	M 30x2	G ¾ A	32	74	35	29	16	3	36	M3BL 12 G
16	25	4,5	M 36x2	G 1 A	39	92	49	36	18	3	46	M3BL 16 G
20	30	5	M 42x2	G 1 ¼ A	49	104	56	34	20	3	50	M3BL 20 G
25a	35	5,5	M 48x2	G 1 ½ A	55	112	61	37	22	3	55	M3BL 25a G
25	38	6	M 52x2	G 1 ½ A	55	118	64	40	22	3	60	M3BL 25 G
32	44	6,75	M 60x2	G 1 ¾ A	62	134	73	47	24	3,5	70	M3BL 32 G

For orders on individual parts we need the following information:

Pieces	Component	Designation	Order number	Material number
2	1	Weld-on stub	(Series)-(DN)- 1	___________________
2	2	Clamping nut	(Series)-(DN)- 2	___________________
1	26	Screw-in L piece	(Series)-(DN)- 26	___________________

Technical data

Nominal pressure (in bar)	300 PN
Nominal width (in mm)	5 DN
Outer diameter of welding nozzle	10 mm
Wandstärke	2.5 mm
d3	M 18x1.5
d4	G 3/8 A
d7	22 mm
L3	52 mm
l3	27 mm
l5	19 mm
i1	12 mm
a2	2.5 mm
s3	24 Wrench size
Material according to DIN EN	1.0460
Material description	Steel

L-screw-in unions with Whitworth thread

M3BL5G A

Advantages & functions

Technical data

Technical drawing

Links & Downloads