DIN 2353 hydraulic fittings also meet ISO 8434-1 standard, it use 24 degree cone compression fittings by cutting ring or DKO o-ring cone to connect tubes with O.D diameters from 4mm to 42 mm, working pressure rating has LL for extra light-duty 10Mpa;L for light-duty from 10 to 25Mpa; S for heavy-duty from 25 to 63Mpa, temperatures between −40 C and +120 C carbon steel with petroleum-based hydraulic fluids, brass material at -60 C to +175 C, stainless steel at -60 C to +200 C.
All the related standards of DIN Fittings as follows:
DIN 3861 is 24°cone machining and sleeve for compression tube fittings
DIN 3865 is 24°cone nipple with O-ring
DIN 3859 is Technical delivery conditions for compression fittings
ISO 8434-1 is 24 degree cone connector
ISO 8434-4 is 24 degree cone connectors with O-ring
From the connection of tubes and hose fittings to ports in accordance with ISO 6149-1, ISO 1179-1 and ISO 9974-1.
Material Specification select range of DIN 2353 Fittings
Carbon Steel Fittings of material cross reference table:
China Material GB standard | Germany Material DIN Standard | USA Material SAE SISI standard | Japan Material JIS Standard |
35 45 | C35, CK35 C45, CK45 | 1035 1045 | S35C S45C |
Stainless steel Fittings of material cross reference table:
China Material GB standard | Germany Material DIN Standard | USA Material AISI SAE standard | Japan Material JIS Standard |
0Cr18Ni9 0Cr19Ni10 0Cr17Ni12Mo2 0Cr27Ni12Mo3 Cr18Ni12Mo2Ti | X5CrNi1810(1.4303) X2CrNi1911(1.4306) X5CrNiMo1712(1.4401) X2CrNiMo18143(1.4405) X6CrNiMoTi1712(1.4471) | 304 304L 316 316L 316Ti | SUS304 SUS304L SUS316 SUS316L SUS316Ti |
Sizes, Temperature and Working Pressure of materials from ISO 8434-1 tube fittings
Series | OD in mm | Carbon steel | Stainless steel | Brass | ||||
Description | Symbol | Pressure | Temperature | Pressure | Temperature | Pressure | Temperature | |
Very Light | LL | 4 to 12 | 100 bar | -40 C to + 120 C | 100 bar | -60 C to +200 C | 63 bar | -60 C to +175 C |
Light | L | 6 to 15 | 250 bar | 315 bar | 200 bar | |||
18 to 22 | 160 bar | 315 to 160 bar | 200 to 100 bar | |||||
28 to 42 | 100 bar | 160 bar | 100 bar | |||||
Heavy | S | 6 to 12 | 630 bar | 630 bar | 400 bar | |||
16 to 25 | 400 bar | 400 bar | 250 bar | |||||
30 to 38 | 250 bar | 250 bar | ||||||
Overviews of DIN hydraulic fittings 24 degree cone connections:
Dimensions of DIN 24 Degree Tube Ends(Male Tube End/Swivel Nut End/Assembly End/Bulkhead End)
| End Size | Thread | Drill | Tube Nut Assembled Allowance | Tube Depth | Male Turn Back | Bulkhead Length | Tube/Swivel Nut Hex | Bulkhead Nut Hex | Max Bulkhead Thickness | |
| Size | D3 (mm) | M Metric | D (mm) | F (mm) | K (mm) | L1 (mm) | L3 (mm) | S2 (mm) | S4 (mm) | X (mm) |
| 4LL 6LL 8LL | 4 6 8 | M8x1 M10x1 M12x1 | 3 4.5 6 | 5.5 6 6 | 4.2 5.7 5.7 | 8 8 9 | — — — | 10 12 14 | — — — | — — — |
| 10LL 12LL | 10 12 | M14x1 M16x1 | 8 10 | 6 6 | 5.7 6.2 | 9 9 | — — | 17 19 | — — | — — |
| 6L | 6 | M12x1.5 | 4 | 8 | 7.2 | 10 | 34 | 14 | 17 | 16 |
| 8L 10L 12L | 8 10 12 | M14x1.5 M16x1.5 M18x1.5 | 6 8 10 | 8 8 8 | 7.2 7.2 7.2 | 10 11 11 | 34 35 36 | 17 19 22 | 19 22 24 | 16 16 16 |
| 15L 18L 22L | 15 18 22 | M22x1.5 M26x1.5 M30x2 | 12 15 19 | 8 9 9 | 7.2 7.7 7.7 | 12 12 14 | 38 40 42 | 27 32 36 | 30 36 41 | 16 16 16 |
| 28L 35L 42L | 28 35 42 | M36x2 M45x2 M52x2 | 24 30 36 | 9 11 12 | 7.7 10.7 11.2 | 14 16 16 | 43 47 47 | 41 50 60 | 46 55 65 | 16 16 16 |
| 6S 8S 10S | 6 8 10 | M14x1.5 M16x1.5 M18x1.5 | 4 5 7 | 8 8 9 | 7.2 7.2 7.7 | 12 12 12 | 36 36 37 | 17 19 22 | 19 22 24 | 16 16 16 |
| 12S 14S 16S | 12 14 16 | M20x1.5 M22x1.5 M24x1.5 | 8 10 12 | 9 10 10 | 7.7 8.2 8.7 | 12 14 14 | 38 40 41 | 24 27 30 | 27 30 32 | 16 16 16 |
| 20S 25S 30S | 20 25 30 | M30x2 M36x2 M42x2 | 16 20 25 | 11 12 13 | 10.7 12.2 13.7 | 16 18 20 | 44 47 51 | 36 46 50 | 41 46 50 | 16 16 16 |
| 38S | 38 | M52x2 | 32 | 15 | 16.2 | 22 | 53 | 60 | 65 | 16 |
There are many DIN hydraulic fitting types we can produce for you, including swivel, elbow, and other connectors with or without add-ons. We hand-pick top-grade brass, carbon steel, or stainless steel to create long-lasting DIN tube fittings. Their robustness is the backbone of their reliability in hydraulic applications and a key feature that allows our connectors to ensure:
Endurance against permanent pressure, vibrations, and low to high temperatures
Tight connections with tubes and cylinders at 24° to 90° angles
Never-failing corrosion resistance
Easy installation and replacement processes
There are no higher-quality DIN fittings for sale. These are the best connectors you can get to forget about leakage, deterioration, or tube cracking risks.
At Fitsch, you can order a specific type or multiple DIN fittings. We can also deliver standard-size connectors or modify them according to your specifications within our China-based production facilities.
Whatever connector type or thread you choose, your fittings will be interchangeable within European hydraulic systems found in food, chemical processing, or other industries. If your expertise lies within these domains, entrust Fitsch to supply you with DIN fittings and bring tight seals to all your hydraulic components.
Overview Catalog of DIN Hydraulic Fittings
