REDUCING TUBE UNION L STAINLESS STEEL DIN-2353
A DIN-2353 stainless steel L-shaped reducing tube fitting is a fitting designed to directly connect two stainless steel tubes of different diameters in the same line, maintaining the L Series.
Applications: instrumentation panels, hydraulic machinery.
Main features:
- DIN-2353 ISO-8434 Fitting
- Manufactured in 1.4571 and 1.4404
- Pressures, see attached table.
- Temperature -60ºC / 200ºC.
Reduced tube union L stainless steel DIN-2353
The DIN-2353 stainless steel L-shaped reducing tube union is used to connect two tubes of different diameters, guaranteeing a watertight and secure joint in hydraulic and pneumatic systems.
Its main function is flow rate adjustment . It allows for a reduction in pipe diameter without the need for multiple fittings or intermediate adapters. This saves space, reduces potential leak points, and simplifies installation.
Applications
- Medium pressure hydraulic systems
- Pneumatic installations
- Chemical, food and pharmaceutical industries
- Industrial equipment and machinery
- Process lines with section changes
Technical data sheet for a reduced L stainless steel tube fitting DIN-2353:

| Reference | D1 | D2 | D3 | L1 | L2 | S1 | S2 | S3 | Weight | PN |
| 06 | 04 | 3 | 32 | 10.5 | 11 | 10 | 12 | 18 | 100 | |
| 08 | 04 | 3 | 34 | 12.5 | 12 | 10 | 14 | 21 | 100 | |
| 08 | 06 | 5 | 34 | 11 | 12 | 12 | 14 | 26 | 100 | |
| 08 | 06 | 4 | 40 | 11 | 14 | 14 | 17 | 45 | 315 | |
| 10 | 08 | 6 | 41 | 12 | 17 | 17 | 19 | 59 | 315 | |
| 12 | 06 | 4 | 42 | 13 | 19 | 14 | 22 | 66 | 315 | |
| 12 | 08 | 6 | 42 | 13 | 19 | 17 | 22 | 72 | 315 | |
| 12 | 10 | 8 | 43 | 14 | 19 | 19 | 22 | 79 | 315 | |
| 391606 | 15 | 10 | 8 | 45 | 15 | 24 | 19 | 27 | 114 | 315 |
| 391607 | 15 | 12 | 10 | 45 | 15 | 24 | 22 | 27 | 120 | 315 |
| 391608 | 18 | 12 | 10 | 46 | 15.5 | 27 | 22 | 32 | 160 | 315 |
| 391609 | 18 | 15 | 12 | 48 | 16.5 | 27 | 27 | 32 | 179 | 315 |
| 391610 | 22 | 15 | 12 | 50 | 18.5 | 32 | 27 | 36 | 225 | 160 |
| 391611 | 22 | 18 | 15 | 50 | 18 | 32 | 32 | 36 | 246 | 160 |
| 391612 | 28 | 18 | 15 | 52 | 19 | 41 | 32 | 41 | 308 | 160 |
| 391613 | 28 | 22 | 19 | 54 | 21 | 41 | 36 | 41 | 327 | 160 |
| 391614 | 35 | 22 | 19 | 59 | 21 | 46 | 36 | 50 | 448 | 160 |
| 391615 | 35 | 28 | 24 | 59 | 21 | 46 | 41 | 50 | 461 | 160 |
| 391616 | 42 | 35 | 30 | 66 | 21.5 | 55 | 50 | 60 | 726 | 160 |