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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

540.0008, 540.0010, 540.0012, 540.1014, 540.1015, 540.1016, 540.1017, 540.1018, 540.1020, 540.1022, 540.1024, 540.2025, 540.2026, 540.2028, 540.2030, 540.2032, 540.2035, 540.2384, 540.2040, 540.2042, 540.2045, 540.3046, 540.3048, 540.3049, 540.3050, 540.3052, 540.3053, 540.3055, 540.3056, 540.3058, 540.3060, 540.3061, 540.3063, 540.3064, 540.3065, 540.3067, 540.3070, 540.3074, 540.3075, 540.3080, 540.3083, 540.3085, 540.3086, 540.3090, 540.3095, 540.3098, 540.3100, 540.3108, 540.3110, 540.3115, 540.3120, 540.4125, 540.4130, 540.4135, 540.4140, 540.4150, 540.4160, 540.4170, 540.4180, 540.4190, 540.4200, 540.4210, 540.4220, 540.4230, 540.4240, 540.4250, 540.4264, 540.4280, 540.4300, 540.4320, 540.4350, 540.4360, 540.4400, 540.4420, 540.4450, 540.4480, 540.4500
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