TUCRON DOUBLE DELTA

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TUCRON DOUBLE DELTA

Description

Turcon Double Delta is a rubber energised plastic faced seal. The seal is designed to expand and improve the service parameters of O-Rings and is installed in existing O-Ring grooves.

Double Delta combines the flexibility and response of O-Rings with the wear and friction characteristics of the Turcon materials in dynamic applications.

The fig. below shows the cross section of the Double Delta.

The double acting performance of the seal follows from the symmetrical cross section which allow the seal to respond to pressure in both directions.

Initial contact pressure is provided by radial compression of the O-Ring. When the system pressure is increased the O-Ring transforms this into additional contact pressure, the contact pressure of the seal is thereby automatically adjusted so sealing is ensured under all service conditions.

Turcon Double Delta figuur 27

 

Notches

Turcon Double Delta is as standard supplied without radial notches, as the thin radial section of the seal gives good response to pressure variations.

For diameters from 8 mm notches on both sides are optional. These ensure direct pressurizing of the seal under all operating conditions.

Turcon Double Delta figuur 28

Advantages

– Compact groove dimensions and simple installation
– Low friction without stick-slip
– Resistance against wear and extrusion
– Piston seals available for all diameters from 5 to 999.9 mm
– Standard cross sections cover AS 568A and important metric O-Rings, other cross sections available on request.
– Fits also groove dimensions per MIL-G-5514F

Application Examples

The Turcon Double Delta is the recommended sealing element for double acting pistons of hydraulic or pneumatic cylinders in sectors such as:

  • Machine toolsHandling devices
  • Manipulators
  • Valves
  • Chemical process equipment

It is particular recommended for light duty and small diameter applications.

Technical Data

Operating conditions

Pressure: Up to 35 MPa

Velocity: Up to 15 m/s

Temperature: -45_C to +200_C (according to O-Ring material)

Media: Mineral oil, Non-flammable fluids, Environmentally safe fluids and others according to O-Ring material.

Important Note:

The above data are maximum values and cannot be used at the same time. e.g. the maximum operating speed depends on material type, pressure, temperature and gap value. Temperature range also dependent on medium.

Materials

Standard Application:

For hydraulic components with reciprocating movement in mineral oils containing zinc or medium with good lubricating performance and hard mating surface.

Turcon Seal: Turcon T46
Energiser: O-Ring NBR 70 Shore A or FKM 70 Shore A depending on the temperature

Special Application:

Short stroke movements, poor lubricating fluids and
soft mating surfaces.

Turcon seal: Turcon T24
Energiser: O-Ring NBR 70 shore A or FKM 70
shore A (depending on the temp.)

For low friction requirement in dynamic hydraulic components with good lubricating medium:

Turcon seal: Turcon T05
Energiser: O-Ring NBR 70 shore A or FKM 70 shore A (depending on the temp.)

For specific applications other material combinations as listed may also be used. Please contact your local Busak+Shamban Company.

Material for the seal set:

Example: T05 plus FKM – O-Ring T05V
T46 plus NBR – O-Ring T46N

Design Instructions

Lead-in Chamfers

In order to avoid damage to the seal during installation, lead-in chamfers and rounded edges must be provided on the bore or piston rod (Figure).

The minimum length of the lead-in chamfer depends on the profile size of the seal and can be seen from the following tables.

Turcon Double Delta Table XXIX

Turcon Double Delta figuur 29

 

Material, Applications, Properties Code O-Ring Material Code O-Ring  Operating Temp.*
°C
Mating Surface Material MPa
max.
Turcon® T46
Standard material for hydraulics, high compressive strength, good sliding and wear properties, good extrusion resistance,
BAM tested.
Bronze filled
Colour: Greyish to dark brown
T46 NBR – 70 Shore A N -30 to +100 Steel tubes Steel, hardened Cast iron 35
NBR – Low temp. 70 Shore A T -45 to +80
FKM – 70 Shore A V -10 to +200
Turcon® T24
For all lubricating and non-lubricating hydraulic fluids, soft mating surfaces. Carbon filled
Colour: Black
T24 NBR – 70 Shore A N -30 to +100 Steel
Steel, hardened Cast iron Stainless steel Aluminium Bronze
25
NBR – Low temp. 70 Shore A T -45 to +80
FMK – 70 Shore A V -10 to +200
EPDM – 70 Shore A E** -45 to +145
Turcon® T05
For all lubricating hydraulic fluids, hard mating surfaces, very good sliding properties, low friction.
Colour: Turquoise
T05 NBR – 70 Shore A N -30 to +100 Steel tubes Steel, hardened 20
NBR – Low temp. 70 Shore A T -45 to +80
FKM – 70 Shore A V -10 to +200

Turcon Double Delta figuur 30

Turcon Double Delta Table XXXI

Ordering example

Turcon Double Delta, complete with O-Ring, standard range, series PDD3 (from Table). Bore diameter: DN = 80.0 mm Part No.: PDD300800 (from Table)

Select the material from Table. The corresponding code numbers are appended to the Part No. (from Table). Togeter they form the Order No.
For all intermediate sizes not shown in Table, the
Order No. can be determined from the example opposite.

* ”N” for seals with notches. Available for diameters from
8.0 mm.
For seals for other groove widths/Dimensions please refer
to table.

Turcon Double Delta Order

 

Turcon double delta

Bore Diame- ter Groove Diame- ter Groove Width Part No. O-Ring Sizes
DN H9 d1 h9 L1 +0.2
6,0 3,1 2,4 PDD000060 2.57 x 1.78
8,0 5,1 2,4 PDD000080 4.47 x 1.78
9,0 6,1 2,4 PDD000090 5.28 x 1.78
10,0 7,1 2,4 PDD000100 6.07 x 1.78
11,0 8,1 2,4 PDD000110 7.65 x 1.78
12,0 9,1 2,4 PDD000120 8.5 x 1.8
12,7 9,8 2,4 PDD000127 9.25 x 1.78
14,0 9,5 3,6 PDD100140 9.19 x 2.62
15,0 10,5 3,6 PDD100150 9.19 x 2.62
16,0 11,5 3,6 PDD100160 10.77 x 2.62
18,0 13,5 3,6 PDD100180 12.37 x 2.62
20,0 15,5 3,6 PDD100200 13.94 x 2.62
22,0 17,5 3,6 PDD100220 17.12 x 2.62
24,0 19,5 3,6 PDD100240 18.72 x 2.62
25,0 18,8 4,8 PDD200250 18 x 3.55
25,4 19,2 4,8 PDD200254 18.54 x 3.53
27,0 20,8 4,8 PDD200270 20.22 x 3.53
28,0 21,8 4,8 PDD200280 20.22 x 3.53
30,0 23,8 4,8 PDD200300 23.40 x 3.53
32,0 25,8 4,8 PDD200320 25.00 x 3.53
35,0 28,8 4,8 PDD200350 28.17 x 3.53
40,0 33,8 4,8 PDD200400 32.92 x 3.53
42,0 35,8 4,8 PDD200420 34.52 x 3.53
45,0 38,8 4,8 PDD200450 37.70 x 3.53
48,0 38,6 7,1 PDD300480 37.47 x 5.33
50,0 40,6 7,1 PDD300500 40.0 x 5.30
50,8 41,4 7,1 PDD300508 40.64 x 5.33
52,0 42,6 7,1 PDD300520 40.64 x 5.33
55,0 45,6 7,1 PDD300550 43.82 x 5.33
56,0 46,6 7,1 PDD300560 43.82 x 5.33
60,0 50,6 7,1 PDD300600 50.17 x 5.33
63,0 53,6 7,1 PDD300630 53.34 x 5.33
65,0 55,6 7,1 PDD300650 53.34 x 5.33
70,0 60,6 7,1 PDD300700 59.69 x 5.33
75,0 65,6 7,1 PDD300750 62.87 x 5.33
80,0 70,6 7,1 PDD300800 69.22 x 5.33
85,0 75,6 7,1 PDD300850 72.39 x 5.33
90,0 80,6 7,1 PDD300900 78.74 x 5.33
95,0 85,6 7,1 PDD300950 81.92 x 5.33

 

100,0 90,6 7,1 PDD301000 88.27 x 5.33
110,0 100,6 7,1 PDD301100 97.79 x 5.33
115,0 105,6 7,1 PDD301150 104.14 x 5.33
120,0 110,6 7,1 PDD301200 107.32 x 5.33
125,0 112,8 9,5 PDD401250 113.67 x 7.0
130,0 117,8 9,5 PDD401300 116.84 x 7.0
135,0 122,8 9,5 PDD401350 120.02 x 7.0
140,0 127,8 9,5 PDD401400 126.37 x 7.0
150,0 137,8 9,5 PDD401500 135.89 x 7.0
160,0 147,8 9,5 PDD401600 145.42 x 7.0
170,0 157,8 9,5 PDD401700 151.77 x 7.0
180,0 167,8 9,5 PDD401800 164.47 x 7.0
190,0 177,8 9,5 PDD401900 177.17 x 7.0
200,0 187,8 9,5 PDD402000 183.52 x 7.0
210,0 197,8 9,5 PDD402100 196.22 x 7.0
220,0 207,8 9,5 PDD402200 202.57 x 7.0
230,0 217,8 9,5 PDD402300 215.27 x 7.0
240,0 227,8 9,5 PDD402400 227.97 x 7.0
250,0 237,8 9,5 PDD402500 236.0 x 7.0
280,0 267,8 9,5 PDD402800 266.07 x 7.0
300,0 287,8 9,5 PDD403000 278.77 x 7.0
320,0 307,8 9,5 PDD403200 304.17 x 7.0
350,0 337,8 9,5 PDD403500 329.57 x 7.0
400,0 387,8 9,5 PDD404000 380.37 x 7.0
420,0 407,8 9,5 PDD404200 405.26 x 7.0
450,0 437,8 9,5 PDD404500 430.66 x 7.0
480,0 467,8 9,5 PDD404800 456.06 x 7.0
500,0 487,8 9,5 PDD405000 481.46 x 7.0

Special Turcon Double Delta
Turcon Double Delta for one Back-up Ring

grooves

Double Delta is avilable for designs where grooves for
O-Ring with one Back up Ring are used according to Table.

Turcon Double Delta figuur 31

Turcon Double Delta Table XXXIII

Turcon Double Delta for metric O-Rings

Double Delta is available for installation in grooves for metric O-Rings as listed in Table.

Turcon Double Delta Table XXXIV

Ordering example

Double DeltaR complete with NBR O-Ring
Bore diameter: DN = 80 mm
Groove diameter: 70.6 mm
Groove width: 8.5 mm.
Order No:. PDA300800-T05N

Turcon Double Delta Order .

 

 

Merk

Busak Shamban

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