K702

K702 - Rod Sealfor Rotating Application
   KASTAŞ NO d (f8) D (H9) B (-0/+0,2) r n o ring
 K702-010 10 14,9 2,2 0,4 2 11,11x1,78
 K702-012 12 16,9 2,2 0,4 2 14,00x1,78
 K702-015 15 19,9 2,2 0,4 2 17,17x1,78
 K702-020 20 27,5 3,2 0,6 2,5 21,89x2,62
 K702-020/1 20 24,9 2,2 0,4 2 21,95x1,78
 K702-025 25 32,5 3,2 0,6 2,5 28,25x2,62
 K702-025/1 25,4 32,9 3,2 0,6 2,5 28,25x2,62
 K702-028 28 35.5 3.2 0.6 2.5 33 x 2.62
 K702-030 30 37,5 3,2 0,6 2,5 33,00x2,62
 K702-035 35 42,5 3,2 0,6 2,5 37,77x2,62
 K702-036 36 43,5 3,2 0,6 2,5 39,34x2,62
 K702-040 40 51 4,2 0,8 3,5 44,04x3,53
 K702-040/1 40 55.5 6.3 1.2 5 47 x 5.33
 K702-045 45 56 4,2 0,8 3,5 50,39x3,53
 K702-050 50 61 4,2 0,8 3,5 53,57x3,53
 K702-055 55 66 4,2 0,8 3,5 59,92x3,53
 K702-056 56 67 4.2 0.8 3.5 60.33 x 3.
 K702-060 60 71 4,2 0,8 3,5 65,10x3,53
 K702-060/1 60 75,5 6,3 1,2 5 66,04x5,33
 K702-065 65 76 4,2 0,8 3,5 69,44x3,53
 K702-070 70 81 4,2 0,8 3,5 75,79x3,53
 K702-075 75 86 4,2 0,8 3,5 78,97x3,53
 K702-080 80 91 4,2 0,8 3,5 85,32x3,53
 K702-080/1 80 95.5 6.3 1.2 5 85.09 x 5.
 K702-085 85 96 4,2 0,8 3,5 88,49x3,53
 K702-090 90 101 4,2 0,8 3,5 94,84x3,53
 K702-095 95 106 4,2 0,8 3,5 101,19x3,5
 K702-100 100 111 4,2 0,8 3,5 104,37x3,5
 K702-100/1 100 115.5 6.3 1.2 5 104.14 x 5
 K702-105 105 116 4,2 0,8 3,5 110,72x3,5
 K702-110 110 121 4,2 0,8 3,5 113,90x3,5
 K702-115 115 126 4,2 0,8 3,5 120,24x3,5
 K702-120 120 131 4,2 0,8 3,5 123,40x3,5
 K702-125 125 136 4,2 0,8 3,5 129,77x3,5
 K702-125/1 125 140.5 6.3 1.2 5 130.2 x 5.
 K702-130 130 141 4,2 0,8 3,5 136,12x3,5
 K702-140 140 151 4,2 0,8 3,5 145,64x3,5
 K702-140/1 140 155.5 6.3 1.2 5 146.05 x 5
 K702-145 145 156 4,2 0,8 3,5 148,82x3,5
 K702-150 150 161 4,2 0,8 3,5 158,34x3,5
 K702-150/1 150 165,5 6,3 1,2 5 158,12x5,3
 K702-155 155 166 4,2 0,8 3,5 158,34x3,5
 K702-160 160 171 4,2 0,8 3,5 164,70x3,5
 K702-165 165 180,5 6,3 1,2 5 170,82x5,3
 K702-170 170 181 4,2 0,8 3,5 171,05x3,5
 K702-180/1 180 195,5 6,3 1,2 5 183,52x5,3
 K702-190 190 201 4,2 0,8 3,5 196,44x3,5
 K702-200 200 215,5 6,3 1,2 5 208,92x5,3
 K702-210 210 225,5 6,3 1,2 5 221,62x5,3
 K702-220 220 235,5 6,3 1,2 5 227,97x5,3
 K702-240 240 255,5 6,3 1,2 5 247,02x5,3
 K702-250 250 265,5 6,3 1,2 5 253,57x5,3
 K702-280 280 301 8,1 1,6 6,5 291,47X6,9
 K702-300 300 321 8,1 1,6 6,5 304,17x6,9

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.