Welcome to our oil seal store. Huge amount of different
dimensions and materials are on stock!! Don´t hasitate to contact us. We also
have o-ring store, bearing store,chain store,
hydraulic and pneumatic seals store, belt store, etc - we
can send together. Most of oil seals
are on stock, so we are usually shipping within 2 bussiness days.
Longer handling time 10-20 days occures just on sold out
items.
We can also use UPS
express shipping. Shipping rates are: UPS to USA 30USD,
UPS to Europe, U.K, Germany, France
20USD,
UPS to N.a S.America, Canada, Mexico, Brazil, Asia, China,
Japan, Australia 50USD
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K17 is a two piece double acting piston seal which
consists of one special mixture PTFE profile ring and an o-ring as
energizing element.
PRODUCT
ADVANTAGES
• Low friction , free of stick-slip
• Simple groove design and low axial housing heights
• Long service life
• High sliding speed
• Wide range of temperature and chemicals depending on the o-ring material
• Minimum static and dynamic friction coefficient for a minimum energy loss
and operating temperature
• Wide range of dimensions
APPLICATION
Injection moulding machines , fork-lift trucks , loading platforms , cranes
, agricultural machinery and valves for hydraulic and pneumatic systems.
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MATERIAL
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CODE
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NBR
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70 SHORE A
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NB7001
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PTFE
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PT6003
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OPERATING CONDITIONS
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MEDIA
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Mineral oils(DIN 51524)
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HFA ve HFB
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HFC
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TEMPERATURE
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-30°C +105°C
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+5°C +60°C
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-30°C +60°C
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PRESSURE
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≤400 Bar
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≤400 Bar
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≤400 Bar
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SPEED
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≤5.0 m/sn
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≤5.0 m/sn
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≤5.0 m/sn
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Note:
The above data are maximum values and cannot be used at the same time.
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SURFACE ROUGHNESS
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Ra
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Rmax
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Sliding Surface ØD
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≤0.2 μm
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≤2.0 μm
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Groove Base Ød
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≤1.6 μm
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≤6.3 μm
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Groove Flanks B
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≤3.2 μm
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≤15 μm
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Note: It is recommended to have 50% to 90% of
the working surface material contact area value.
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INSTALLATION
We recommend using special assembly tool (See section; Hydraulic Sealing
Elements General Installation Information) and to have open groove design
for dimensions that are smaller than Ø 40 mm. It is very important that
the assembly tools must be of soft material and have no sharp edges.
Before installation the sealing element must be oiled with system oil.
NOTES
It is recommended to use with minimum two piston guide rings in long
stroke cylinders , minimum one guide ring in short stroke and under low
radial loads. For special applications that require high temperatures or
resistance to chemicals , piston seal is being manufactured with special
mixture PTFE and FKM material. The permissible sealing gap values of K17
piston seal is given in the below table.
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PERMISSIBLE
SEALING GAP
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B
(mm)
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Smax
(mm)
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x
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150 Bar
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250 Bar
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400 Bar
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2.2
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0.25
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0.20
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0.15
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3.2
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0.4
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0.25
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0.15
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4.2
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0.4
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0.25
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0.20
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6.3
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0.5
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0.30
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0.20
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8.1
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0.6
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0.35
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0.25
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9.5
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0.7
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0.50
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0.30
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Note: The largest sealing gap
value occurring on the non-pressurized side of the seal does have a vital
importance for the function of the seal and in this respect it is quite
important to use the S value lower than the above indicated numbers.
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