Hubata Seals - Pneumatic Seals Catalogue · 2015-04-17 · 1 Contents 2 Pneumatic sealing elements...
Transcript of Hubata Seals - Pneumatic Seals Catalogue · 2015-04-17 · 1 Contents 2 Pneumatic sealing elements...
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Pneumatic seals
1
Contents
2 Pneumatic sealing elements
3 Application examples
4 Individual description (Pneumatic piston seals)
11 Individual description (Pneumatic rod seals)
PneumatiC SealS
The purpose of this catalogue is to present standard seals dimensions.
For information about stock availabilities, please contact our sales department.
We are able to supply other dimensions required.
2
For sealing elements used for pneumatic cylinders, minimum friction forces and maximum sealing features should bе provided. Therefore, they differ from other sealing elements used in hydraulic systems. Compared with hydraulic cylinders, for pneumatic cylinders there is the requirement of operating in non-oiled and sometimes inadequate-oiled conditions at higher linear velocity with less pressures. Therefore, the dynamic sealing lips (contact surface), preload and material hardness which are of sealing elements designed for pneumatic cylinders should bе different.
Hubata Seals trades with the following pneumatic sealing elements: PSP K25, PSP K50, PSP K54, PSP K55 and PSP K57 are used as piston seal, PSR K30, PSR K51, PSR K52 NBR/TPU and PSR K56 as combi seal and PSR K53 NBR, PSR K53 TPU are used as the sealing element for pneumatic cushioning seal.
The necessary dimensions of general tolerances and chamfers are given below.
PneumatiC SealinG elementS
Material Tolerance
Cylinder St, Ms, Al, GFK H11 / H12
Rod St f8 *
Housing St, Ms, Al, Plastic Rod ** Piston ** Guide H8 / h8
Surface Roughness Machining
Cylinder Rmax ≤ 4 µm Honing
Rod Rmax ≤ 4 µm Grinding / Burnishing *
Housing Rmax ≤ 10 µm Turning Burnishing
* Hardening (55-60 HRC) and hard chroming with 30 µm thickness. ** According to seal type.
Chamfers in pneumatic system
a Inner/Outer diameter (mm)
2 < 20
3 20–49
4 50–99
5 100–159
6 160–249
7 250–400
8 > 400
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In this simple double acting pneumatic cylinder design, PSP K25 double acting pneumatic piston seal is used as pneumatic piston seal and PSR K30 pneumatic combi seal is used as pneumatic rod seal.
For this application, PSP K50 TPU as piston seal, PSR K51 TPU rod seal for rod sealing, and PSR K53 TPU cushioning seal for cushioning seal are used. During operation, pressurized air acting on line A makes piston and rod move to the left. At this moment the air in the other side of the piston is exhausted on line B. By the contact of D cushioning rod with cushioning seal, the exhausting procedure from line B becomes stopped. At this moment, exhausting procedure is only performed over C flow control valve in a controlled way. By this way, the movement of cylinder gets slowed down.
aPPliCatiOn eXamPleS
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PSP K25 PneumatiC PiStOn Seal
They are the seals used in pneumatic systems
with an easy assembly. Produced by bonding
NBR on the metal, the PSP K25 types are
designed in such a way that they can be used
without piston. They are fitted on the rod with
bolt and shoulder. FKM (Viton) PSP K25 seals are
offered and produced as special orders.
Operating conditions Media: Dried and conditioned air
Temperature: -30 °C, +105 °C
Operating pressure: ≤ 12 Bar
Linear velocity: ≤ 1 m/sn
D d B D1 S S1
25 8 12 14.5 3 4
32 8 15 16 3 4
40 10 18 23 4 5
50 10 18 29 4 5
63 12 22 40.5 5 6
70 12 22 47 5 6
80 16 25 55 5 6.5
90 16 25 65 5 6.5
100 16 25 75 5 6.5
110 18 25 85 6 7.5
125 20 30 90 8 10
140 20 30 95 10 12
150 20 30 105 10 12
160 27 31 115 10 12
180 27 31 135 10 12
200 27 35 150 12 15
250 30 35 200 12 16.5
320 36 40 278.5 15 18.6
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PSP K50 PneumatiC PiStOn Seal
Produced by injection moulding technique
from special polyurethane material, or NBR 80
Shore A, the PSP K50 pneumatic piston nutrings
are designed specially for pneumatic cylinders
with its dynamic sealing lips (external sealing
lips) having shorter height. It provides a safe
static sealing when its internal sealing lips are
installed in housing. Being able to be used in
all pneumatic cylinders suitable to all technical
properties given below, the PSP K50 type series
can be provided from our stocks.
Operating Conditions nBR tPu
Material NBR80 Shore A TPU80 Shore A
Media Conditioned air Lubrication free Pressurized dry air
Temperature -30 °C, +105 °C -30 °C, +80 °C
Operating pressure ≤ 12 Bar ≤ 16 Bar
Linear velocity ≤ 1 m/sn ≤ 1 m/sn
Surface Roughness Sliding surface Rmax ≤ 4 µm
Housing surface Rmax ≤ 10 µm
NBR TPU D d B b
● ● 32 24 6.0 5.5
● ● 40 30 7.5 7.0
● ● 50 40 7.5 7.0
● ● 63 53 7.5 7.0
● ● 80 68 9.5 8.5
● ● 100 88 9.5 8.5
● ● 125 110 11 10
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PSP K54 PneumatiC PiStOn Seal
Designed and produced as a piston seal
suitable for pneumatic cylinders and valves, PSP
K54 seals are used frequently in especially short
stroke cylinders because of its easy assembly
and low friction feature.
Manufactured with NBR70 Shore A, PSP K54
pneumatic piston seal can also be produced
with FKM for the specials applications.
Operating Conditions
Media Dried and conditioned air
Temperature -20 °C, +100 °C Air
Operating pressure ≤ 12 Bar
Linear velocity ≤ 1 m/sn
Surface Roughness RtSliding surface ≤ 4 µm
Housing surface ≤ 10 µm
D d b B r
12 7 2.0 2.5 0.2
16 9 2.1 2.5 0.2
20 13 2.1 2.5 0.2
25 18 2.1 2.5 0.2
28 19 2.5 3.0 0.2
30 21 2.5 3.0 0.2
32 23 2.5 3.0 0.2
35 26 2.5 3.0 0.2
40 31 2.5 3.0 0.2
45 36 2.5 3.0 0.2
50 41 2.5 3.0 0.2
63 51 3.4 4.0 0.2
80 68 3.4 4.0 0.2
100 88 3.4 4.0 0.2
125 110 4.4 5.0 0.2
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PSP K55 PneumatiC PiStOn Seal
Being used safely up to 12 bars in single acting
and short stroke pneumatic cylinders, PSP
K55 pneumatic piston seals are made up
of aluminium plate and NBR material. They
can be used in single acting and short stroke
pneumatic cylinders, where there is not too
much radial load. Due to its design with air relief
notches they also function as cushioning at the
end of strokes.
Operating Conditions
Media Dried and conditioned air
Temperature -30 °C, +105 °C Air
Operating pressure ≤ 12 Bar
Linear velocity ≤ 1 m/sn
Surface Roughness RtSliding surface ≤ 4 µm
D d B b h s d2 d3
16 4.5 4.4 3.4 2.3 2 6.9 13.2
20 6 5.5 4.4 2.8 2.5 9.4 17
25 7 6.4 5.4 3.5 3 10.8 21.2
32 8 7.5 6.0 3.5 3 12.5 27
40 8 8.5 7.0 4.5 4 17 34.9
50 10 10 8.0 4.5 4 26 43.9
63 12 10 8.0 4.5 4 26 56.6
80 16 11.4 9.0 5.5 5 30 72
100 20 12.9 10.9 6.5 6 35 91
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PSP K57 PneumatiC PiStOn Seal
Being used safely up to 12 bars in double acting
and short stroke pneumatic cylinders, PSP K57
pneumatic piston seals are made up of metal
and NBR material. They can be used in double
acting and short stroke pneumatic cylinders,
where there is not too much radial load. Due
to its design with air relief notches they also
function as cushioning at the end of strokes.
Operating Conditions
Media Dried and conditioned air
Temperature -30 °C, +105 °C Air
Operating pressure ≤ 12 Bar
Linear velocity ≤ 1 m/sn
Surface RoughnessSliding surface Rmax ≤ 4 µm
D d H1 H2 s1 s2 d2 d3
12 4.5 6 4 2.3 2 6.9 9.4
25 7 8.8 7 3.5 3 10.8 21.2
32 8 11 8 3.5 3 12.5 27
40 8 11.8 8.8 4.5 4 17 34.9
50 10 14 10 4.5 4 26 43.9
63 12 14 10 4.5 4 26 56.6
80 16 16 12 5.5 5 30 72
100 20 18 14 6.5 6 35 91
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PSP K58 PneumatiC PiStOn Seal
The compact, short, complete pneumatic
piston consist of an aluminum body, guide
strip, a magnet and the sealing body with a
special sealing edge on the sealing lip and
integrated buffers made of very wear resistant
polyurethane.
Operating Conditions
Material TPU/POM/ALU/MAGNET
Media Lubrication free Pressurized dry air
Temperature -25 °C, +80 °C
Operating pressure ≤ 12 Bar
Linear velocity ≤ 1 m/sn
Surface RoughnessSliding surface Rmax ≤ 4 µm
DN d H
32 8,1 14
40 8,1 15
50 10,1 15,5
63 10,1 19
80 12,1 21,5
100 17,1 25,5
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PSP K59 PneumatiC PiStOn Seal
The compact, u-ring with asymmetrical profile
and a special pneumatic sealing edge on the
dynamic sealing lip.
Operating Conditions
Material NBR80
Media Lubrication free Pressurized dry air
Temperature -30 to 105
Operating pressure ≤ 12 Bar
Linear velocity ≤ 1 m/sn
Surface RoughnessSliding surface Rmax ≤ 4 µm
Housing surface Rmax ≤ 10 µm
D d B H
8 4,8 2,3 2,7
10 6 2,55 3
12 7 2,55 3
16 10 2,55 3
20 14 2,55 3
25 19 3,25 3,5
32 24 3,25 3,5
40 32 3,25 3,5
50 42 3,25 3,5
63 53 4,25 4,5
80 70 4,25 4,5
100 90 4,25 4,5
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PSR K30 PneumatiC ROD Seal
It is a pneumatic combined rod seal consisting
of an NBR nutring lip for pneumatic applications
and wiper (dust) ring supported by a metal ring.
PSR K30 are also produced with FKM for special
applications.
Operating Conditions
Media Dried and conditioned air
Temperature -30 °C, +105 °C
Operating pressure ≤ 16 Bar
Linear velocity ≤ 1 m/sn
Surface RoughnessSliding surface Rmax ≤ 4 µm
Housing surface Rmax ≤ 10 µm
d D a b D1 B r
10 17 7 9.5 19 8.5 1.1
12 22 7 9.5 24 8.5 1.1
14 24 7 9.5 26 8.5 1.1
16 26 7 9.5 28 8.5 1.1
20 30 7 9.5 32 8.5 1.1
25 35 7 9.5 37.5 8.5 1.4
30 40 7 9.5 42.5 8.5 1.4
32 42 7 9.5 44.5 8.5 1.4
35 45 7 9.5 47.5 8.5 1.4
40 50 7 9.5 52.5 8.5 1.4
45 55 7.3 9.2 57.5 8.5 1.4
50 60 7 9.5 62.5 8.5 1.4
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PSR K51 PneumatiC ROD Seal
Produced by injection moulding technique with
special TPU material, the PSR K51 combi seal
perform an absolute sealing with its dynamic
nutring sealing lips and its joint dust (wiper) lips.
It is provided to be easily assembled into special
design open seal housing. Being used safely for
all pneumatic cylinders, PSR K51 series can be
provided from our stocks.
Operating Conditions
Material TPU90 Shore A
Media Lubrication free, pressurized dry air
Temperature -30 °C, +80 °C
Operating pressure ≤ 16 Bar
Linear velocity ≤ 1 m/sn
Surface RoughnessSliding surface Rmax ≤ 4 µm
Housing surface Rmax ≤ 10 µm
d D b b1 B B1 ØD1 r
12 22 10.4 7 13 7.5 24.2 1.1
16 26 10.4 7 13 7.5 28.2 1.1
18 28 10.4 7 13 7.5 30 1.1
20 30 10.4 7 13 7.5 32.2 1.1
25 35 10.4 7.3 13 8 37.8 1.4
32 42 10.4 7.3 13 8 44.8 1.4
40 50 10.4 7.3 13 8 52.8 1.4
50 60 10.4 7.7 13 8.5 63.6 1.8
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PSR K52 PneumatiC ROD Seal
Designed specially for the cases necessary
for sealing of very small areas in short stroke
pneumatic cylinders, PSR K52 type seals
provide maximum sealing with its small housing
measures and minimum friction force.
Produced normally with standard material
NBR90 Shore A and TPU90 Shore A, PSR K52 is
also produced with FKM as special order.
Operating Conditions nBR tPuMaterial NBR90 Shore A TPU90 Shore A
Media Conditioned air Lubrication free, pressurized dry air
Temperature -30 °C, +105 °C -30 °C, +80 °C
Operating pressure ≤ 16 Bar ≤ 16 Bar
Linear velocity ≤ 1 m/sn ≤ 1 m/sn
Surface RoughnessSliding surface Rmax ≤ 4 µm
Housing surface Rmax ≤ 10 µm
NBR TPU d D a A D1
• • 4 8.2 4 3 6.5
• • 6 11.2 5 4 9
• • 8 14.2 5 4 12
• • 10 16.2 5.5 4.5 14
• 12 16.5 4 4 13.7
• 16 20.5 4 4 17.7
• 20 25 4.6 4.6 21.9
• 25 30 4.6 4.15 26.9
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PSR K53 PneumatiC ROD Seal
Produced by injection moulding technique from
TPU material or NBR90 Shore A, PSR K53 series
can be used safely in the applications requiring
cushioning seals in pneumatic cylinders.
Operating Conditions tPu nBRMaterial TPU90 Shore A NBR90 Shore A
Media Lubrication free, pressurized dry air Conditioned dry air
Temperature -30 °C, +80 °C -30 °C, +105 °C
Operating pressure 16 Bar 16 Bar
Linear velocity ≤ 1 m/sn ≤ 1 m/sn
Surface RoughnessSliding surface Rmax ≤ 4 µm
Housing surface Rmax ≤ 10 µm
NBR TPU d D D1 D2 d1 a1 a2 A
• • 12 18 13 15.5 8 4.1 5 4.8
• • 12 20 13 17 8 6.2 8 7
• • 14 22 15 19 10 6.3 7.8 7
• • 16 22 17 19.5 12 4.5 5.5 5.2
• • 16 24 17 21 12 6.2 8 7
• • 20 28 21 25 16 6.2 8 7
• • 24 32 25 28 20 6.2 8 7
• • 25 33 26 29 20 6.2 8 7
• • 30 40 31.5 35 26 6.2 8 7
• • 36 46 37.5 41 32 6.2 8 7
• • 40 50 41.5 45 32 6.2 7.8 7
• 50 60 51.5 55 40 6.2 7.8 7
• 50 67 53 58 40 11 11 12.5
• 57 74 60 65 50 11 11 12.5
• 70 87 73 78 63 11 11 12.5
15
PSR K56 PneumatiC ROD Seal
Constructed with 80 Shore A NBR ring and
thermoplastic elastomer (HYTREL) ring, PSR
K56 pneumatic rod seal can be used safely
in heavy duty applications with its scraper lip
on thermoplastic elastomer ring. For special
applications, a combination of Viton and Teflon
with bronze can be used.
Operating Conditions
Media Dried and conditioned air
Temperature -30 °C, +80 °C
Operating pressure ≤ 16 Bar
Linear velocity ≤ 1 m/sn
Surface RoughnessSliding surface Rmax ≤ 4 µm
Housing surface Rmax ≤ 10 µm
d D b b1 B B1 D1 r
12 22 11 7 13 7.7 24 1.1
16 26 11 7 13 7.7 28 1.1
20 30 11 7 13 7.7 32 1.1
25 35 11.5 7.3 13 8 37.5 1.4
32 42 11.5 7.3 13 8 44.5 1.4
40 50 11.5 7.3 13 8 52.5 1.4
45 55 12.5 7.7 15 8.6 58.2 1.8
50 60 14.5 7.7 15 8.6 63.2 1.8
63 75 13 8.6 16 9.6 78.2 1.8
HeaD OFFice18, Rozhen blvd.; 1220 Sofia, Bulgaria tel.: +359 2 8378 499, 8378 599 fax: +359 2 8376 599 [email protected]
OFFice PlOVDiV8, Peshtersko shouse blvd.; 4002 Plovdiv, Bulgaria tel.: +359 32 640 654 fax: +359 32 640 654 [email protected]
www.hubata-seals.com
PS.2011.09-02