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Aluminium concentric reducer

Gizom is very well known for its aluminium reducers. We make these (welding)fittings available in various alloys and sizes, both for metric connections and inches according to ANSI. In addition to the concentric reducers, Gizom also has excellent contacts for eccentric reducers.

In addition to supplying individual products, we are also able to supply everything as a prefabrication, so that it can be applied directly in the desired setting. Some operations we can perform there in are welding and surface treatments.

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Applications aluminium reducer

Our aluminium reducers are used in various environments, including ship and yacht building, petrochemical industry, construction, bodywork and machining companies.

Are you looking for aluminium reducers or do you have any questions? Please feel free to contact us or request a free quote!

Overview Concentric reducers

Type concentric reducers

– Available in various alloys according to DIN 2616
– Also available including certificates according to EN 10204/3.1 of the base material
– Available in seamless and welded versions
– Other sizes or alloys available on request
– Also available in eccentric execution

Dimension in mm (d1 x s1)	Dimension in mm (d2 x s2)
30 x 5,0	25 x 5,0	- + Add
34 x 2,0	21 x 2,0	- + Add
35 x 5,0	30 x 5,0	- + Add
40 x 5,0	30 x 5,0	- + Add
40 x 5,0	35 x 5,0	- + Add
46 x 3,0	31 x 3,0	- + Add
46 x 3,0	38 x 3,0	- + Add
50 x 5,0	35 x 5,0	- + Add
50 x 5,0	40 x 5,0	- + Add
56 x 3,0	31 x 3,0	- + Add
56 x 3,0	46 x 3,0	- + Add
57 x 3,0	31 x 3,0	- + Add
60 x 3,5	34 x 2,0	- + Add
60 x 5,0	45 x 5,0	- + Add
60 x 3,0	48 x 3,0	- + Add
60 x 5,0	50 x 5,0	- + Add
60 x 8,0	50 x 8,0	- + Add
63 x 5,0	51 x 5,0	- + Add
75 x 5,0	50 x 5,0	- + Add
75 x 5,0	60 x 5,0	- + Add
76 x 3,0	46 x 3,0	- + Add
76 x 3,0	56 x 3,0	- + Add
76 x 3,0	57 x 3,0	- + Add
76 x 3,0	60 x 3,0	- + Add
80 x 5,0	50 x 5,0	- + Add
80 x 5,0	60 x 5,0	- + Add
80 x 10,0	60 x 10,0	- + Add
86 x 3,0	56 x 3,0	- + Add
86 x 3,0	76 x 3,0	- + Add
89 x 3,0	57 x 3,0	- + Add
89 x 3,0	60 x 3,0	- + Add
89 x 3,0	76 x 3,0	- + Add
89 x 5,0	38 x 5,0	- + Add
89 x 5,0	48 x 5,0	- + Add
89 x 5,0	60 x 5,0	- + Add
90 x 5,0	60 x 5,0	- + Add
90 x 5,0	75 x 5,0	- + Add
90 x 10,0	60 x 10,0	- + Add
90 x 10,0	70 x 10,0	- + Add
100 x 10,0	80 x 10,0	- + Add
106 x 3,0	56 x 3,0	- + Add
106 x 3,0	76 x 3,0	- + Add
106 x 3,0	86 x 3,0	- + Add
106 x 5,0	56 x 5,0	- + Add
108 x 4,0	76 x 3,0	- + Add
108 x 4,0	76 x 4,0	- + Add
108 x 4,0	86 x 4,0	- + Add
108 x 4,0	89 x 3,0	- + Add
108 x 4,0	89 x 4,0	- + Add
110 x 4,0	60 x 4,0	- + Add
110 x 5,0	75 x 5,0	- + Add
110 x 5,0	90 x 5,0	- + Add
114 x 3,0	60 x 3,0	- + Add
114 x 3,0	76 x 3,0	- + Add
114 x 3,0	89 x 3,0	- + Add
114 x 5,0	89 x 5,0	- + Add
115 x 5,0	75 x 5,0	- + Add
120 x 5,0	90 x 5,0	- + Add
120 x 10,0	100 x 10,0	- + Add
120 x 5,0	110 x 5,0	- + Add
120 x 10,0	110 x 10,0	- + Add
130 x 5,0	120 x 5,0	- + Add
133 x 4,0	108 x 4,0	- + Add
139 x 4,0	114 x 4,0	- + Add
156 x 3,0	106 x 3,0	- + Add
159 x 4,0	180 x 4,0	- + Add
159 x 5,0	108 x 5,0	- + Add
159 x 4,0	133 x 4,0	- + Add
160 x 5,0	108 x 5,0	- + Add
208 x 4,0	159 x 4,0	- + Add
219 x 3,0	114 x 3,0	- + Add
219 x 4,0	133 x 4,0	- + Add
219 x 4,0	159 x 4,0	- + Add
219 x 4,0	168 x 4,0	- + Add
273 x 4,0	168 x 4,0	- + Add
273 x 4,0	219 x 4,0	- + Add
273 x 10,0	219 x 10,0	- + Add

– Alloy EN AW-5083 (AlMg4,5Mn) according to ASTM B361 / ANSI B16.9
– Including certificates according to EN 10204/3.1 or EN 10204/3.2 LRS of the base material
– Other sizes or alloys available on request

Dimension in inches (d1 x s1 sched.)	Dimension in millimeter (d1 x s1)	Dimension in inches (d2 x s2 sched.)	Dimension in millimeter (d2 x s2)
¾'' x 40s	26,67 x 2,87	⅜'' x 40s	17,15 x 2,31	- + Add
¾'' x 80s	26,67 x 3,91	⅜'' x 80s	17,15 x 3,20	- + Add
¾'' x 40s	26,67 x 2,87	½'' x 40s	21,34 x 2,77	- + Add
¾'' x 80s	26,67 x 3,91	½'' x 80s	21,34 x 3,73	- + Add
1'' x 40s	33,40 x 3,38	⅜'' x 40s	17,15 x 2,31	- + Add
1'' x 80s	33,40 x 4,55	⅜'' x 80s	17,15 x 3,20	- + Add
1'' x 40s	33,40 x 3,38	½'' x 40s	21,34 x 2,77	- + Add
1'' x 80s	33,40 x 4,55	½'' x 80s	21,34 x 3,73	- + Add
1'' x 40s	33,40 x 3,38	¾'' x 40s	26,67 x 2,87	- + Add
1'' x 80s	33,40 x 4,55	¾'' x 80s	26,67 x 3,91	- + Add
1¼'' x 40s	42,16 x 3,56	½'' x 40s	21,34 x 2,77	- + Add
1¼'' x 80s	42,16 x 4,85	½'' x 80s	21,34 x 3,73	- + Add
1¼'' x 40s	42,16 x 3,56	¾'' x 40s	26,67 x 2,87	- + Add
1¼'' x 80s	42,16 x 4,85	¾'' x 80s	26,67 x 3,91	- + Add
1¼'' x 40s	42,16 x 3,56	1'' x 40s	33,40 x 3,38	- + Add
1¼'' x 80s	42,16 x 4,85	1'' x 80s	33,40 x 4,55	- + Add
1½'' x 40s	48,26 x 3,68	½'' x 40s	21,34 x 2,77	- + Add
1½'' x 80s	48,26 x 5,08	½'' x 80s	21,34 x 3,73	- + Add
1½'' x 40s	48,26 x 3,68	¾'' x 40s	26,67 x 2,87	- + Add
1½'' x 80s	48,26 x 5,08	¾'' x 80s	26,67 x 3,91	- + Add
1½'' x 40s	48,26 x 3,68	1'' x 40s	33,40 x 3,38	- + Add
1½'' x 80s	48,26 x 5,08	1'' x 80s	33,40 x 4,55	- + Add
1½'' x 40s	48,26 x 3,68	1¼'' x 40s	42,16 x 3,56	- + Add
1½'' x 80s	48,26 x 5,08	1¼'' x 80s	42,16 x 4,85	- + Add
2'' x 40s	60,33 x 3,91	¾'' x 40s	26,67 x 2,87	- + Add
2'' x 80s	60,33 x 5,54	¾'' x 80s	26,67 x 3,91	- + Add
2'' x 40s	60,33 x 3,91	1'' x 40s	33,40 x 3,38	- + Add
2'' x 80s	60,33 x 5,54	1'' x 80s	33,40 x 4,55	- + Add
2'' x 10s	60,33 x 2,77	1¼'' x 10s	42,16 x 2,77	- + Add
2'' x 40s	60,33 x 3,91	1¼'' x 40s	42,16 x 3,56	- + Add
2'' x 80s	60,33 x 5,54	1¼'' x 80s	42,16 x 4,85	- + Add
2'' x 10s	60,33 x 2,77	1½'' x 10s	48,26 x 2,77	- + Add
2'' x 40s	60,33 x 3,91	1½'' x 40s	48,26 x 3,68	- + Add
2'' x 80s	60,33 x 5,54	1½'' x 80s	48,26 x 5,08	- + Add
2½'' x 40s	73,03 x 5,16	1'' x 40s	33,40 x 3,38	- + Add
2½'' x 80s	73,03 x 7,01	1'' x 80s	33,40 x 4,55	- + Add
2½'' x 10s	73,03 x 3,05	1¼'' x 10s	42,16 x 2,77	- + Add
2½'' x 40s	73,03 x 5,16	1¼'' x 40s	42,16 x 3,56	- + Add
2½'' x 80s	73,03 x 7,01	1¼'' x 80s	42,16 x 4,85	- + Add
2½'' x 10s	73,03 x 3,05	1½'' x 10s	48,26 x 2,77	- + Add
2½'' x 40s	73,03 x 5,16	1½'' x 40s	48,26 x 3,68	- + Add
2½'' x 80s	73,03 x 7,01	1½'' x 80s	48,26 x 5,08	- + Add
2½'' x 10s	73,03 x 3,05	2'' x 10s	60,33 x 2,77	- + Add
2½'' x 40s	73,03 x 5,16	2'' x 40s	60,33 x 3,91	- + Add
2½'' x 80s	73,03 x 7,01	2'' x 80s	60,33 x 5,54	- + Add
3'' x 40s	88,90 x 5,49	1'' x 40s	33,40 x 3,38	- + Add
3'' x 80s	88,90 x 7,62	1'' x 80s	33,40 x 4,55	- + Add
3'' x 10s	88,90 x 3,05	1¼'' x 10s	42,16 x 2,77	- + Add
3'' x 40s	88,90 x 5,49	1¼'' x 40s	42,16 x 3,56	- + Add
3'' x 80s	88,90 x 7,62	1¼'' x 80s	42,16 x 4,85	- + Add
3'' x 10s	88,90 x 3,05	1½'' x 10s	48,26 x 2,77	- + Add
3'' x 40s	88,90 x 5,49	1½'' x 40s	48,26 x 3,68	- + Add
3'' x 80s	88,90 x 7,62	1½'' x 80s	48,26 x 5,08	- + Add
3'' x 10s	88,90 x 3,05	2'' x 10s	60,33 x 2,77	- + Add
3'' x 40s	88,90 x 5,49	2'' x 40s	60,33 x 3,91	- + Add
3'' x 80s	88,90 x 7,62	2'' x 80s	60,33 x 5,54	- + Add
3'' x 10s	88,90 x 3,05	2½'' x 10s	73,03 x 3,05	- + Add
3'' x 40s	88,90 x 5,49	2½'' x 40s	73,03 x 5,16	- + Add
3'' x 80s	88,90 x 7,62	2½'' x 80s	73,03 x 7,01	- + Add
3½'' x 40s	101,60 x 5,74	2'' x 40s	60,33 x 3,91	- + Add
3½'' x 80s	101,60 x 8,08	2'' x 80s	60,33 x 5,54	- + Add
3½'' x 40s	101,60 x 5,74	2½'' x 40s	73,03 x 5,16	- + Add
3½'' x 80s	101,60 x 8,08	2½'' x 80s	73,03 x 7,01	- + Add
3½'' x 40s	101,60 x 5,74	3'' x 40s	88,90 x 5,49	- + Add
3½'' x 80s	101,60 x 8,08	3'' x 80s	88,90 x 7,62	- + Add
4'' x 10s	114,30 x 3,05	2'' x 10s	60,33 x 2,77	- + Add
4'' x 40s	114,30 x 6,02	2'' x 40s	60,33 x 3,91	- + Add
4'' x 80s	114,30 x 8,56	2'' x 80s	60,33 x 5,54	- + Add
4'' x 10s	114,30 x 3,05	2½'' x 10s	73,03 x 3,05	- + Add
4'' x 40s	114,30 x 6,02	2½'' x 40s	73,03 x 5,16	- + Add
4'' x 80s	114,30 x 8,56	2½'' x 80s	73,03 x 7,01	- + Add
4'' x 10s	114,30 x 3,05	3'' x 10s	88,90 x 3,05	- + Add
4'' x 40s	114,30 x 6,02	3'' x 40s	88,90 x 5,49	- + Add
4'' x 80s	114,30 x 8,56	3'' x 80s	88,90 x 7,62	- + Add
5'' x 10s	141,30 x 3,40	3'' x 10s	88,90 x 3,05	- + Add
5'' x 40s	141,30 x 6,55	3'' x 40s	88,90 x 5,49	- + Add
5'' x 80s	141,30 x 9,53	3'' x 80s	88,90 x 7,62	- + Add
5'' x 40s	141,30 x 6,55	3½'' x 40s	101,60 x 5,74	- + Add
5'' x 80s	141,30 x 9,53	3½'' x 80s	101,60 x 8,08	- + Add
5'' x 10s	141,30 x 3,40	4'' x 10s	114,30 x 3,05	- + Add
5'' x 40s	141,30 x 6,55	4'' x 40s	114,30 x 6,02	- + Add
5'' x 80s	141,30 x 9,53	4'' x 80s	114,30 x 8,56	- + Add
6'' x 10s	168,30 x 3,40	3'' x 10s	88,90 x 3,05	- + Add
6'' x 40s	168,30 x 7,11	3'' x 40s	88,90 x 5,49	- + Add
6'' x 80s	168,30 x 10,97	3'' x 80s	88,90 x 7,62	- + Add
6'' x 40s	168,30 x 7,11	3½'' x 40s	101,60 x 5,74	- + Add
6'' x 80s	168,30 x 10,97	3½'' x 80s	101,60 x 8,08	- + Add
6'' x 10s	168,30 x 3,40	4'' x 10s	114,30 x 3,05	- + Add
6'' x 40s	168,30 x 7,11	4'' x 40s	114,30 x 6,02	- + Add
6'' x 80s	168,30 x 10,97	4'' x 80s	114,30 x 8,56	- + Add
6'' x 10s	168,30 x 3,40	5'' x 10s	141,30 x 3,40	- + Add
6'' x 40s	168,30 x 7,11	5'' x 40s	141,30 x 6,55	- + Add
6'' x 80s	168,30 x 10,97	5'' x 80s	141,30 x 9,53	- + Add
8'' x 10s	219,08 x 3,76	4'' x 10s	114,30 x 3,05	- + Add
8'' x 40s	219,08 x 8,18	4'' x 40s	114,30 x 6,02	- + Add
8'' x 80s	219,08 x 12,70	4'' x 80s	114,30 x 8,56	- + Add
8'' x 10s	219,08 x 3,76	5'' x 10s	141,30 x 3,40	- + Add
8'' x 40s	219,08 x 8,18	5'' x 40s	141,30 x 6,55	- + Add
8'' x 80s	219,08 x 12,70	5'' x 80s	141,30 x 9,53	- + Add
8'' x 10s	219,08 x 3,76	6'' x 10s	168,30 x 3,40	- + Add
8'' x 40s	219,08 x 8,18	6'' x 40s	168,30 x 7,11	- + Add
8'' x 80s	219,08 x 12,70	6'' x 80s	168,30 x 10,97	- + Add
10'' x 10s	273,00 x 4,19	4'' x 10s	114,30 x 3,05	- + Add
10'' x 40s	273,00 x 9,27	4'' x 40s	114,30 x 6,02	- + Add
10'' x 80s	273,00 x 15,00	4'' x 80s	114,30 x 8,56	- + Add
10'' x 10s	273,00 x 4,19	5'' x 10s	141,30 x 3,40	- + Add
10'' x 40s	273,00 x 9,27	5'' x 40s	141,30 x 6,55	- + Add
10'' x 80s	273,00 x 15,00	5'' x 80s	141,30 x 9,53	- + Add
10'' x 10s	273,00 x 4,19	6'' x 10s	168,30 x 3,40	- + Add
10'' x 40s	273,00 x 9,27	6'' x 40s	168,30 x 7,11	- + Add
10'' x 80s	273,00 x 15,00	6'' x 80s	168,30 x 10,97	- + Add
10'' x 10s	273,00 x 4,19	8'' x 10s	219,08 x 3,76	- + Add
10'' x 40s	273,00 x 9,27	8'' x 40s	219,08 x 8,18	- + Add
10'' x 80s	273,00 x 15,00	8'' x 80s	219,08 x 12,70	- + Add
12'' x 10s	323,85 x 4,57	8'' x 10s	219,08 x 3,76	- + Add
12'' x 40s	323,85 x 9,53	8'' x 40s	219,08 x 8,18	- + Add
12'' x 80s	323,85 x 17,45	8'' x 80s	219,08 x 12,70	- + Add
12'' x 10s	323,85 x 4,57	10'' x 10s	273,00 x 4,19	- + Add
12'' x 40s	323,85 x 9,53	10'' x 40s	273,00 x 9,27	- + Add
12'' x 80s	323,85 x 17,45	10'' x 80s	273,00 x 15,00	- + Add

Type concentric reducers

Looking for a product in a different size? Please contact Gizom. Customization is no problem at all.Request quote

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Aluminium concentric reducer

Applications aluminium reducer

Overview Concentric reducers

Type concentric reducers

Type concentric reducers

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