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WASHER 16,00X20,00X12,00 BLACK FPM75
Family: Washers
Dimensions : 16.00 x 20.00 x 12.00
Material: FPM
Color:
BLACK
Part number: A01602012OZ75241
Weight : 2.8000 gr.
Customs tariff code: 39269097
Country of origin: ES
Quality :
WASHER 28,24X33,26X2,51 BLACK FPM75 (DKAR00122)
Family: Washers
Dimensions : 28.24 x 33.26 x 2.51
Material: FPM
Color:
BLACK
Part number: A028033025OZ75431
Weight : 1.4100 gr.
Customs tariff code: 39269097
Country of origin: IN
Technical data
Profile | Material | Hardness | Temperature | Bars | Speed |
NBR / FPM / VMQ / EPDM / FFKM | * | * | * | * |
*Depending on the material selected
WASHERS
The primary function of rubber washers is to create a seal and prevent leaks or friction between two surfaces. They are an excellent alternative to O-Rings and/or X-rings as they often improve the sealing efficiency. They are commonly used to create a tight seal between two connected components but can also provide electrical insulation between two connected surfaces. And last but not least, washers can help absorb vibrations, shocks, or impacts, reducing the risk of damage to the connected components and serve as a barrier between two different metals, helping to prevent galvanic corrosion.
There are different manufacturing processes to produce washers:
- By injection or compression moulding (especially cost-effective for mass productions)
- By Lathe cuttting (often used when precision and narrow tolerances are required)
- By die-cutting
- By water-jet cutting
The most common materials are EPDM, NBR and FPM but washers can be produced in any other elastomers such as VMQ, HNBR, CR, FFKM, etc... as well as in approved compounds for food (FDA, 1935/2004, NSF51), drinking water (UBA, WRAS, ACS, KIWA, EN681-1, NSF61) or gas (EN649).
For special requirements, other materials like PU, TPU or PTFE can be a very effective in specific applications.
ADVANTAGES
- No twisting in the groove
- No need for additional back-up ring
- Long shelf life
- Good resistance to extrusion, wear and abrasion
- Low cross-section mechanical deformation
APPLICATIONS
Any application in which an O-ring can be replaced like flanges, valves, cylinders, plates or locks.
SIZES - ISO 7089
There is no chart of standard sizes since any size can be manufactured according to the needs. However, we present below some sizes as an example:
- Washers according to ISO 7089 standard
- Washers for fittings
Nominal | d1 | d2 | H |
M1.6 | 1,70 | 4 | 0,3 |
M2 | 2,20 | 5 | 0,3 |
M2.5 | 2,70 | 6 | 0,5 |
M2.6 | 2,80 | 7 | 0,5 |
M3 | 3,20 | 7 | 0,5 |
M3.5 | 3,70 | 8 | 0,5 |
M4 | 4,30 | 9 | 0,8 |
M5 | 5,30 | 10 | 1 |
M6 | 6,40 | 12 | 1,6 |
M7 | 7,40 | 14 | 1,6 |
M8 | 8,40 | 16 | 1,6 |
M10 | 10,50 | 20 | 2 |
M12 | 13 | 24 | 2,5 |
M14 | 15 | 28 | 2,5 |
M16 | 17 | 30 | 3 |
M18 | 19 | 34 | 3 |
M20 | 21 | 37 | 3 |
M22 | 23 | 39 | 3 |
M24 | 25 | 44 | 4 |
M27 | 28 | 50 | 4 |
M30 | 31 | 56 | 4 |
M33 | 34 | 60 | 5 |
M36 | 37 | 66 | 5 |
M39 | 40 | 72 | 6 |
M42 | 43 | 78 | 7 |
M45 | 46 | 85 | 7 |
M48 | 50 | 92 | 8 |
M52 | 54 | 98 | 8 |
M56 | 58 | 105 | 9 |
FITTINGS
Nominal | d1 | d2 | H |
1/4" | 8 | 12 | 2 |
3/8" | 8 | 14,50 | 2 |
3/8" | 10 | 14 | 2 |
3/8" | 10 | 15 | 2 |
20/150" | 12 | 17,50 | 2 |
1/2" | 10 | 19 | 2 |
1/2" | 11 | 18 | 2 |
1/2" | 11 | 19 | 3 |
1/2" | 12 | 18 | 2 |
1/2" | 12 | 19 | 2 |
1/2" | 13 | 18 | 2,20 |
1/2" | 14 | 18 | 2 |
5/8" | 15 | 21 | 2 |
3/4" | 13 | 24 | 2,50 |
3/4" | 16 | 23 | 2,50 |
3/4" | 16 | 24 | 2 |
3/4" | 18,5 | 23,5 | 2,5 |
7/8" | 20 | 27 | 2 |
7/8" | 21 | 26,5 | 2 |
7/8" | 22 | 27 | 2,50 |
1" | 20 | 30 | 2 |
1" | 23 | 30 | 2,50 |
1" | 24 | 29 | 2,50 |
1.1/4" | 28 | 33 | 2 |
1.1/4" | 29 | 38 | 3 |
1.1/4" | 32 | 38 | 2,50 |
1.1/2" | 30 | 44 | 2,50 |
1.1/2" | 35 | 44 | 2,50 |
1.1/2" | 37 | 44 | 2,50 |
2" | 44 | 54 | 3 |
2" | 47 | 54 | 3 |
2.1/2" | 56 | 69 | 3,50 |
3" | 69 | 82 | 3,50 |
TOLERANCES REGARDING DIAMETERS
Nominal Diameter (mm) | Inside (mm) | External (mm) | |||
EN2 | EN1 | EG2 | EG1 | ||
From | Up to | Standard tolerances | Low tolerances | Standard tolerances | Low tolerances |
6,30 | 10 | 0,35 | 0,25 | 0,25 | 0,15 |
10 | 16 | 0,40 | 0,35 | 0,35 | 0,20 |
16 | 25 | 0,50 | 0,40 | 0,40 | 0,20 |
25 | 40 | 0,70 | 0,50 | 0,50 | 0,25 |
40 | 63 | 0,80 | 0,70 | 0,70 | 0,35 |
63 | 100 | 1,00 | 0,80 | 0,80 | 0,40 |
100 | 160 | 1,30 | 1,00 | 1,00 | 0,50 |
160 | – | 0,80% | 0,60% | 0,50% | 0,30% |
ISO 3302-1
The table below sets out the standard tolerances that JIOrings usually offers its clients. Said tolerances are based on the standard ISO 3302-1. When we don’t have specific manufacturing requirements, we propose Class 2 (EN2 for the interior diameter, EW2 for the section and EC2 for the thickness).
TOLERANCES REGARDING THICKNESS AND SECTION
Nominal Thickness (mm) | Thickness (mm) | Section (mm) | |||
EC3 | EC2 | EW2 | EW1 | ||
From | Up to | Standard tolerances | Low tolerances | Standard tolerances | Low tolerances |
0,50 | 1 | 0,20 | 0,15 | 0,20 | 0,10 |
1 | 1,60 | 0,25 | 0,20 | 0,20 | 0,10 |
1,60 | 2,50 | 0,35 | 0,20 | 0,20 | 0,10 |
2,50 | 4 | 0,40 | 0,25 | 0,20 | 0,10 |
4 | 6,30 | 0,50 | 0,35 | 0,20 | 0,15 |
6,30 | 10 | 0,70 | 0,40 | 0,25 | 0,20 |
10 | 16 | 0,80 | 0,50 | 0,35 | 0,20 |
16 | 25 | 1,00 | 0,70 | 0,40 | 0,25 |
ISO 3302-1
The table below sets out the standard tolerances that JIOrings usually offers its clients. Said tolerances are based on the standard ISO 3302-1. When we don’t have specific manufacturing requirements, we propose Class 2 (EN2 for the interior diameter, EW2 for the section and EC2 for the thickness).
Square cross-section washers (also known as Kantseal®)
Tolerances on inside diametre
d1 | Tolerance |
4,00 - 14,00 | +/- 0,13 |
14,01 - 15,60 | +/- 0,18 |
15,61 - 25,12 | +/- 0,23 |
25,13 - 29,78 | +/- 0,25 |
29,79 - 34,65 | +/- 0,28 |
34,66 - 44,17 | +/- 0,33 |
44,18 - 50,52 | +/- 0,38 |
50,53 - 66,40 | +/- 0,46 |
66,41 - 75,92 | +/- 0,51 |
75,93 - 94,97 | +/- 0,61 |
94,98 - 107,67 | +/- 0,69 |
107,68 - 126,72 | +/- 0,76 |
126,73 - 133,07 | +/- 0,94 |
133,08 - 158,42 | +/- 0,99 |
158,43 - 183,82 | +/- 1,02 |
183,83 - 209,22 | +/- 1,14 |
209,23 - 234,62 | +/- 1,27 |
234,63 - 278,99 | +/- 1,40 |
279,00 - 405,26 | +/- 1,65 |
405,27 - 430,66 | +/- 1,91 |
430,67 - 456,07 | +/- 2,03 |
Tolerances on thickness
H1 | W | T |
1,68 | +/- 0,15 | +/- 0,08 |
2,51 | +/- 0,15 | +/- 0,10 |
3,40 | +/- 0,15 | +/- 0,10 |
5,16 | +/- 0,15 | +/- 0,10 |
6,73 | +/- 0,15 | +/- 0,10 |
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