EN
Telephone

+33 (0)2 51 42 13 76

Search
Quality & expertise
for your sealing needs

BECA 540 - 549

BECA 540 - 549
BECA 540
beca_540_549_3d_v1
beca_540_549_3d_v2

Description

The BECA 540 profile is a single acting piston seal composed of a profiled, filled PTFE U-ring type seal and a V-Shaped spring that is resistant to corrosion.

The BECA 549 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

30 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 drawingLogement Gorge Joint de piston - Housing Groove Gland Piston seal BECA 540 - 549

Installation dimensions

Housing Groove Gland piston seal - BECA 540 - 549

Installation dimensions

Series Bore diameter Groove diameter Groove width Radial section Step height
ØD1 H9
Standard series Extended series Ød1 h9 L1 0/+0.20 S ØD1 - A
540.0* 6.0 - 13.9 6.0 - 40.0 D1 - 2.90 2.40 1.45 0.4
540.1 14.0 - 24.9 10.0 - 200.0 D1 - 4.50 3.60 2.25 0.6
540.2 25.0 - 45.9 16.0 - 400.0 D1 - 6.20 4.80 3.10 0.7
540.3 46.0 - 124.9 28.0 - 700.0 D1 - 9.40 7.10 4.70 0.8
540.4 125.0 - 999.9 45.0 - 999.9 D1 - 12.20 9.50 6.10 0.9
540.5 1000.0 - 2500.0 100.0 - 2500.0 D1 - 19.00 15.00 9.50 0.9

For special applications > 30 MPa, we recommend using an H8/f8 tolerance (bore/piston) or selecting other more suitable materials. Please contact our experts.
*Only BECA 540.0 profiles are fitted with an O'Ring instead of a V-Shaped spring.

Materials

Friction ring 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

  • Wear properties
  • Compression set

Good resistance to chemical products
Thermal and electrical conductivity
Anti-static

Efficient as part of dynamic
applications with compression

CG C PTFE
+ 23% Carbon
+ 2% Graphite
Black
DV V PTFE
+ 25 % Glass
Blue Improvement
  • Wear properties
  • Mechanical strength
Slightly more abrasive but can be
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
  • Wear properties
Reduced wear on metal parts
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
  • Better abrasion resistance
  • Better dimensional stability at high temperatures
Use up to +300°C
Good friction coefficient and low permeability
K2 K PTFE
+ 20% Ekonol
Light brown
DB B PTFE
+ 60% Bronze
Dark brown Improvement
  • Wear properties
  • Deformation and creep resistance
  • Compression resistant
Self-lubricating
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

Housing Groove Gland piston seal - BECA 540 - 549

Extrusion gaps

Radial section
S
Radial extrusion gap
F/2
2 MPa 10 MPa 20 MPa 30 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
77 dimensions found
540.0008
Standard request
8,00 5,10 2,10 2,40
540.0010
Standard request
10,00 7,10 2,10 2,40
540.0012
Standard request
12,00 9,10 2,10 2,40
540.1014
Standard request
14,00 9,50 3,30 3,60
540.1015
Standard request
15,00 10,50 3,30 3,60
540.1016
Standard request
16,00 11,50 3,30 3,60
540.1017
Standard request
17,00 12,50 3,30 3,60
540.1018
Standard request
18,00 13,50 3,30 3,60
540.1020
Standard request
20,00 15,50 3,30 3,60
540.1022
Standard request
22,00 17,50 3,30 3,60
540.1024
Standard request
24,00 19,50 3,30 3,60
540.2025
Standard request
25,00 18,80 4,40 4,80
540.2026
Standard request
26,00 19,80 4,40 4,80
540.2028
Standard request
28,00 21,80 4,40 4,80
540.2030
Standard request
30,00 23,80 4,40 4,80
540.2032
Standard request
32,00 25,80 4,40 4,80
540.2035
Standard request
35,00 28,80 4,40 4,80
540.2384
Standard request
38,40 32,20 4,40 4,80
540.2040
Standard request
40,00 33,80 4,40 4,80
540.2042
Standard request
42,00 35,80 4,40 4,80
540.2045
Standard request
45,00 38,80 4,40 4,80
540.3046
Standard request
46,00 36,60 6,50 7,10
540.3048
Standard request
48,00 38,60 6,50 7,10
540.3049
Standard request
49,00 39,60 6,50 7,10
540.3050
Standard request
50,00 40,60 6,50 7,10
540.3052
Standard request
52,00 42,60 6,50 7,10
540.3053
Standard request
53,00 43,60 6,50 7,10
540.3055
Standard request
55,00 45,60 6,50 7,10
540.3056
Standard request
56,00 46,60 6,50 7,10
540.3058
Standard request
58,00 48,60 6,50 7,10
540.3060
Standard request
60,00 50,60 6,50 7,10
540.3061
Standard request
61,00 51,60 6,50 7,10
540.3063
Standard request
63,00 53,60 6,50 7,10
540.3064
Standard request
64,00 54,60 6,50 7,10
540.3065
Standard request
65,00 55,60 6,50 7,10
540.3067
Standard request
67,00 57,60 6,50 7,10
540.3070
Standard request
70,00 60,60 6,50 7,10
540.3074
Standard request
74,00 64,60 6,50 7,10
540.3075
Standard request
75,00 65,60 6,50 7,10
540.3080
Standard request
80,00 70,60 6,50 7,10
540.3083
Standard request
83,00 73,60 6,50 7,10
540.3085
Standard request
85,00 75,60 6,50 7,10
540.3086
Standard request
86,00 76,60 6,50 7,10
540.3090
Standard request
90,00 80,60 6,50 7,10
540.3095
Standard request
95,00 85,60 6,50 7,10
540.3098
Standard request
98,00 88,60 6,50 7,10
540.3100
Standard request
100,00 90,60 6,50 7,10
540.3108
Standard request
108,00 98,60 6,50 7,10
540.3110
Standard request
110,00 100,60 6,50 7,10
540.3115
Standard request
115,00 105,60 6,50 7,10
540.3120
Standard request
120,00 110,60 6,50 7,10
540.4125
Standard request
125,00 112,80 8,80 9,50
540.4130
Standard request
130,00 117,80 8,80 9,50
540.4135
Standard request
135,00 122,80 8,80 9,50
540.4140
Standard request
140,00 127,80 8,80 9,50
540.4150
Standard request
150,00 137,80 8,80 9,50
540.4160
Standard request
160,00 147,80 8,80 9,50
540.4170
Standard request
170,00 157,80 8,80 9,50
540.4180
Standard request
180,00 167,80 8,80 9,50
540.4190
Standard request
190,00 177,80 8,80 9,50
540.4200
Standard request
200,00 187,80 8,80 9,50
540.4210
Standard request
210,00 197,80 8,80 9,50
540.4220
Standard request
220,00 207,80 8,80 9,50
540.4230
Standard request
230,00 217,80 8,80 9,50
540.4240
Standard request
240,00 227,80 8,80 9,50
540.4250
Standard request
250,00 237,80 8,80 9,50
540.4264
Standard request
264,00 251,80 8,80 9,50
540.4280
Standard request
280,00 267,80 8,80 9,50
540.4300
Standard request
300,00 287,80 8,80 9,50
540.4320
Standard request
320,00 307,80 8,80 9,50
540.4350
Standard request
350,00 337,80 8,80 9,50
540.4360
Standard request
360,00 347,80 8,80 9,50
540.4400
Standard request
400,00 387,80 8,80 9,50
540.4420
Standard request
420,00 407,80 8,80 9,50
540.4450
Standard request
450,00 437,80 8,80 9,50
540.4480
Standard request
480,00 467,80 8,80 9,50
540.4500
Standard request
500,00 487,80 8,80 9,50