BECA 340 - 349
BECA 340 - 349
Description
The BECA 340 profile is a single acting rod seal composed of a profiled, filled PTFE U-ring type seal and a V-Shaped spring that is resistant to corrosion.
The BECA 349 profile is specially designed for applications where the seal is in contact with food products. It is characterised by a silicone overmoulding on the inside of the seal, which completely hides the V-Shaped spring, thus preventing impurities from accumulating in this hard-to-clean area.
Advantages
Wide temperature range and excellent chemical resistance
Low friction coefficient; no stick-slip effect
Excellent abrasion resistance
Good dimensional stability
Non-toxic material
Technical data
| Temperature | -200°C/+260°C |
|---|---|
| Pressure | 40 MPa |
| Speed | 15 m/s |
| Medias | Practically all types of fluids, and chemical and gas products |
Applications
Food & Beverage
Medical
Pharmaceutical
Static hydraulics
Materials
Profiled seal
Carbon-filled PTFE
GL Blue PTFE
PE-UHMW
V-Shaped spring
Stainless steel
Dimensions
Installation dimensions
Materials
Technical data
Dimensions
Installation drawing
Installation dimensions
Installation dimensions
| Series | Rod diameter Ød1 h9 |
Groove diameter | Groove width | Radial section | Step height | |
|---|---|---|---|---|---|---|
| Standard series | Extended series | ØD1 H9 | L1 0/+0.20 | S | ØD1 - A | |
| 340.0* | 3.0 - 9.9 | 3.0 - 40.0 | d1 + 2.90 | 2.40 | 1.45 | 0.4 |
| 340.1 | 10.0 - 19.9 | 6.0 - 200.0 | d1 + 4.50 | 3.60 | 2.25 | 0.6 |
| 340.2 | 20.0 - 39.9 | 10.0 - 400.0 | d1 + 6.20 | 4.80 | 3.10 | 0.7 |
| 340.3 | 40.0 - 119.9 | 20.0 - 700.0 | d1 + 9.40 | 7.10 | 4.70 | 0.8 |
| 340.4 | 120.0 - 629.9 | 35.0 - 999.9 | d1 + 12.20 | 9.50 | 6.10 | 0.9 |
| 340.5 | 630.0 - 999.9 | 80.0 - 999.9 | d1 + 19.00 | 15.00 | 9.50 | 0.9 |
For special applications > 40 MPa, we recommend using an H8/f8 tolerance (groove/rod) or selecting other more suitable materials. Please contact our experts.
*Only 340.0 profiles are fitted with an O'Ring instead of a V-Shaped spring.
Materials
| Profiled seal | V-Shaped spring | Contact surface area | ||||||
|---|---|---|---|---|---|---|---|---|
| Standard code | ISO code | Material | Colour | Characteristics | Code | Type of material | Service temperature | |
| DP | P | Virgin PTFE | White | Resistance to chemical products Sealing water Dielectric Non-stick Low friction coefficient Food & Beverage |
I | X10 Cr Ni 18-8 | -200°C/+260°C | Steel Stainless steel Chrome steel Aluminium Bronze Cast iron Treated surface |
| DC | C | PTFE +25% Carbon |
Grey |
Improvement
Good resistance to chemical products Efficient as part of dynamic |
||||
| CG | C | PTFE + 23% Carbon + 2% Graphite |
Black | |||||
| DV | V | PTFE + 25 % Glass |
Blue | Improvement
corrected with the addition of MOS2 Chemical and dielectric properties preserved Well suited to applications with rotating and simultaneous alternating movements |
Steel Chrome steel Cast iron |
|||
| VM | M | PTFE + 15 % Glass + 5% MoS2 |
Grey | |||||
| DX | X | GL Blue PTFE + Glass + Metal oxides |
Turquoise blue | Compression resistant Wear resistant Excellent chemical stability Good thermal conductivity |
||||
| DG | G | PTFE + 15% Graphite |
Black | Improvement
Self-lubricating Thermal and electrical conductivity Low permeability Good friction coefficient Anti-static Efficient as part of dynamic dynamic applications with self-lubrication |
Steel Stainless steel Chrome steel Aluminium Bronze Cast iron Treated surface |
|||
| K1 | K | PTFE + 10% Ekonol |
Light brown | Improvement
Good friction coefficient and low permeability |
||||
| K2 | K | PTFE + 20% Ekonol |
Light brown | |||||
| DB | B | PTFE + 60% Bronze |
Dark brown | Improvement
Electrical and thermal conductivity Does not alter metal parts Reduced resistance to certain chemical products Used for dynamic seals with a strong compression and low level of wear |
Steel Chrome steel Cast iron |
|||
| B4 | B | PTFE + 40% Bronze |
Dark brown | |||||
| HG | HG | PE-UHMW | White or off-white | Excellent wear resistance on contact with water and air | I | X10 Cr Ni 18-8 | -70°C/+80°C | Steel Stainless steel Chrome steel Aluminium Bronze Cast iron Treated surface |
Other grades of materials are available depending on your specificities.
Technical data
Extrusion gaps
| Radial section S |
Radial extrusion gap F/2 |
|||
|---|---|---|---|---|
| 2 MPa | 10 MPa | 20 MPa | 40 MPa | |
| 1.45 | 0.20 | 0.10 | 0.08 | 0.05 |
| 2.25 | 0.25 | 0.15 | 0.10 | 0.07 |
| 3.10 | 0.35 | 0.20 | 0.15 | 0.08 |
| 4.70 | 0.50 | 0.25 | 0.20 | 0.10 |
| 6.10 | 0.60 | 0.30 | 0.25 | 0.12 |
| 9.50 | 0.90 | 0.50 | 0.40 | 0.20 |
Surface roughness
| Roughness | Dynamic surface area | Static surface area | Groove flanks |
|---|---|---|---|
| Ra | 0.05 - 0.2 µm | ≤ 1.6 µm | ≤ 3.2 µm |
| Rz | 0.4 - 1.6 µm | ≤ 6.3 µm | ≤ 10.0 µm |
| Rmax | 0.63 - 2.5 µm | ≤ 10.0 µm | ≤ 16.0 µm |
Chamfers and radius
| Radial section S |
Radius R1 |
Chamfer C |
|---|---|---|
| 1.45 | 0.40 | 3.00 |
| 2.25 | 0.40 | 3.00 |
| 3.10 | 0.60 | 3.00 |
| 4.70 | 0.80 | 3.00 |
| 6.10 | 0.80 | 3.50 |
| 9.50 | 0.80 | 6.50 |
70 dimensions found
|
340.0004
|
4,00 | 6,90 | 2,10 | 2,40 |
|
340.0005
|
5,00 | 7,90 | 2,10 | 2,40 |
|
340.0006
|
6,00 | 8,90 | 2,10 | 2,40 |
|
340.0007
|
7,00 | 9,90 | 2,10 | 2,40 |
|
340.0008
|
8,00 | 10,90 | 2,10 | 2,40 |
|
340.1010
|
10,00 | 14,50 | 3,30 | 3,60 |
|
340.1011
|
11,00 | 15,50 | 3,30 | 3,60 |
|
340.1012
|
12,00 | 16,50 | 3,30 | 3,60 |
|
340.1014
|
14,00 | 18,50 | 3,30 | 3,60 |
|
340.1015
|
15,00 | 19,50 | 3,30 | 3,60 |
|
340.1016
|
16,00 | 20,50 | 3,30 | 3,60 |
|
340.1018
|
18,00 | 22,50 | 3,30 | 3,60 |
|
340.2020
|
20,00 | 26,20 | 4,40 | 4,80 |
|
340.2022
|
22,00 | 28,20 | 4,40 | 4,80 |
|
340.2025
|
25,00 | 31,20 | 4,40 | 4,80 |
|
340.2028
|
28,00 | 34,20 | 4,40 | 4,80 |
|
340.2030
|
30,00 | 36,20 | 4,40 | 4,80 |
|
340.2032
|
32,00 | 38,20 | 4,40 | 4,80 |
|
340.2033
|
33,00 | 39,20 | 4,40 | 4,80 |
|
340.2035
|
35,00 | 41,20 | 4,40 | 4,80 |
|
340.2036
|
36,00 | 42,20 | 4,40 | 4,80 |
|
340.2038
|
38,00 | 44,20 | 4,40 | 4,80 |
|
340.3040
|
40,00 | 49,40 | 6,50 | 7,10 |
|
340.3042
|
42,00 | 51,40 | 6,50 | 7,10 |
|
340.3045
|
45,00 | 54,40 | 6,50 | 7,10 |
|
340.3048
|
48,00 | 57,40 | 6,50 | 7,10 |
|
340.3050
|
50,00 | 59,40 | 6,50 | 7,10 |
|
340.3052
|
52,00 | 61,40 | 6,50 | 7,10 |
|
340.3055
|
55,00 | 64,40 | 6,50 | 7,10 |
|
340.3056
|
56,00 | 65,40 | 6,50 | 7,10 |
|
340.3060
|
60,00 | 69,40 | 6,50 | 7,10 |
|
340.3063
|
63,00 | 72,40 | 6,50 | 7,10 |
|
340.3065
|
65,00 | 74,40 | 6,50 | 7,10 |
|
340.3070
|
70,00 | 79,40 | 6,50 | 7,10 |
|
340.3072
|
72,00 | 81,40 | 6,50 | 7,10 |
|
340.3075
|
75,00 | 84,40 | 6,50 | 7,10 |
|
340.3080
|
80,00 | 89,40 | 6,50 | 7,10 |
|
340.3085
|
85,00 | 94,40 | 6,50 | 7,10 |
|
340.3090
|
90,00 | 99,40 | 6,50 | 7,10 |
|
340.3095
|
95,00 | 104,40 | 6,50 | 7,10 |
|
340.3100
|
100,00 | 109,40 | 6,50 | 7,10 |
|
340.3105
|
105,00 | 114,40 | 6,50 | 7,10 |
|
340.3110
|
110,00 | 119,40 | 6,50 | 7,10 |
|
340.3115
|
115,00 | 124,40 | 6,50 | 7,10 |
|
340.3116
|
116,00 | 125,40 | 6,50 | 7,10 |
|
340.4120
|
120,00 | 132,20 | 8,80 | 9,50 |
|
340.4125
|
125,00 | 137,20 | 8,80 | 9,50 |
|
340.4130
|
130,00 | 142,20 | 8,80 | 9,50 |
|
340.4135
|
135,00 | 147,20 | 8,80 | 9,50 |
|
340.4140
|
140,00 | 152,20 | 8,80 | 9,50 |
|
340.4150
|
150,00 | 162,20 | 8,80 | 9,50 |
|
340.4160
|
160,00 | 172,20 | 8,80 | 9,50 |
|
340.4165
|
165,00 | 177,20 | 8,80 | 9,50 |
|
340.4170
|
170,00 | 182,20 | 8,80 | 9,50 |
|
340.4180
|
180,00 | 192,20 | 8,80 | 9,50 |
|
340.4190
|
190,00 | 202,20 | 8,80 | 9,50 |
|
340.4200
|
200,00 | 212,20 | 8,80 | 9,50 |
|
340.4210
|
210,00 | 222,20 | 8,80 | 9,50 |
|
340.4220
|
220,00 | 232,20 | 8,80 | 9,50 |
|
340.4230
|
230,00 | 242,20 | 8,80 | 9,50 |
|
340.4238
|
238,00 | 250,20 | 8,80 | 9,50 |
|
340.4240
|
240,00 | 252,20 | 8,80 | 9,50 |
|
340.4250
|
250,00 | 262,20 | 8,80 | 9,50 |
|
340.4280
|
280,00 | 292,20 | 8,80 | 9,50 |
|
340.4300
|
300,00 | 312,20 | 8,80 | 9,50 |
|
340.4315
|
315,00 | 327,20 | 8,80 | 9,50 |
|
340.4320
|
320,00 | 332,20 | 8,80 | 9,50 |
|
340.4350
|
350,00 | 362,20 | 8,80 | 9,50 |
|
340.4360
|
360,00 | 372,20 | 8,80 | 9,50 |
|
340.4400
|
400,00 | 412,20 | 8,80 | 9,50 |