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K702

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  • K702
K702 - Rod Seal for Rotating Application
  • General Features
  • Technicial Specifications
   KASTAŞ NOd (f8)D (H9)B (-0/+0,2)rno ring
 K702-0101014,92,20,4211,11x1,78
 K702-0121216,92,20,4214,00x1,78
 K702-0151519,92,20,4217,17x1,78
 K702-0202027,53,20,62,521,89x2,62
 K702-020/12024,92,20,4221,95x1,78
 K702-0252532,53,20,62,528,25x2,62
 K702-025/125,432,93,20,62,528,25x2,62
 K702-0282835.53.20.62.533 x 2.62
 K702-0303037,53,20,62,533,00x2,62
 K702-0353542,53,20,62,537,77x2,62
 K702-0363643,53,20,62,539,34x2,62
 K702-04040514,20,83,544,04x3,53
 K702-040/14055.56.31.2547 x 5.33
 K702-04545564,20,83,550,39x3,53
 K702-05050614,20,83,553,57x3,53
 K702-05555664,20,83,559,92x3,53
 K702-05656674.20.83.560.33 x 3.
 K702-06060714,20,83,565,10x3,53
 K702-060/16075,56,31,2566,04x5,33
 K702-06565764,20,83,569,44x3,53
 K702-07070814,20,83,575,79x3,53
 K702-07575864,20,83,578,97x3,53
 K702-08080914,20,83,585,32x3,53
 K702-080/18095.56.31.2585.09 x 5.
 K702-08585964,20,83,588,49x3,53
 K702-090901014,20,83,594,84x3,53
 K702-095951064,20,83,5101,19x3,5
 K702-1001001114,20,83,5104,37x3,5
 K702-100/1100115.56.31.25104.14 x 5
 K702-1051051164,20,83,5110,72x3,5
 K702-1101101214,20,83,5113,90x3,5
 K702-1151151264,20,83,5120,24x3,5
 K702-1201201314,20,83,5123,40x3,5
 K702-1251251364,20,83,5129,77x3,5
 K702-125/1125140.56.31.25130.2 x 5.
 K702-1301301414,20,83,5136,12x3,5
 K702-1401401514,20,83,5145,64x3,5
 K702-140/1140155.56.31.25146.05 x 5
 K702-1451451564,20,83,5148,82x3,5
 K702-1501501614,20,83,5158,34x3,5
 K702-150/1150165,56,31,25158,12x5,3
 K702-1551551664,20,83,5158,34x3,5
 K702-1601601714,20,83,5164,70x3,5
 K702-165165180,56,31,25170,82x5,3
 K702-1701701814,20,83,5171,05x3,5
 K702-180/1180195,56,31,25183,52x5,3
 K702-1901902014,20,83,5196,44x3,5
 K702-200200215,56,31,25208,92x5,3
 K702-210210225,56,31,25221,62x5,3
 K702-220220235,56,31,25227,97x5,3
 K702-240240255,56,31,25247,02x5,3
 K702-250250265,56,31,25253,57x5,3
 K702-2802803018,11,66,5291,47X6,9
 K702-3003003218,11,66,5304,17x6,9

K702 is a two piece double-acting sealing set which consists of one special mixture PTFE profile ring and an O-ring as energizing element.

PRODUCT ADVANTAGES
• Able to use at high pressures and low peripheral speeds
• 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 coeficient for a minimum energy loss and operating temperature

APPLICATION
Mobile hydraulics , grippers and rotary joints.

MATERIAL   CODE
NBR 70 SHORE A NB7001
PTFE   PT6003
OPERATING CONDITIONS
MEDIA Mineral oils (DIN 51524)  HFA ve HFB HFC
TEMPERATURE -30°C +105°C +5°C +60°C -30°C +60°C
PRESSURE ≤300 Bar ≤300 Bar ≤300 Bar
SPEED ≤5.0 m/sn ≤5.0 m/sn ≤5.0 m/sn

Note: The above data are maximum values and cannot be used at the same time.


SURFACE ROUGHNESS Ra Rmax
Sliding Surface  Ød ≤0.2  μm ≤2.0 μm
Groove Base ØD ≤1.6 μm ≤6.3 μm
Groove Flanks  B ≤3.2 μm ≤16 μm
Note: It is recommended to have 50% to 90% of the working surface material contact area value.

INSTALLATION
We recommend using special assembly tool (See section; Hydraulic Sealing Elements General Installation Information). 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
For special applications that require high temperatures or resistance to chemicals , rod seal is being manufactured with special mixture PTFE and FKM material. The permissible sealing gap values of K702 rod seal for rotating application is given in the below table.

PERMISSIBLE SEALING GAP
   B (mm) Smax (mm)
  100 Bar 200 Bar 300 Bar
2.2 0.15 0.10 0.075
3.2  0.20 0.15 0.10
4.2 0.20 0.15 0.10
6.3  0.30 0.20 0.15
8.1  0.30 0.20 0.15

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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