K752

K752 - Piston Sealfor Rotating Application
   KASTAŞ NO D (H8) Ød (h9) B (-0/+0,2) r n o ring
 K752-015 15 10,1 2,2 0,4 2 9,25x1,78
 K752-020 20 15,1 2,2 0,4 2 14,00x1,78
 K752-025 25 20,1 2,2 0,4 2 18,77x1,78
 K752-030 30 25,1 2,2 0,4 2 23,53x1,78
 K752-032 32 27,1 2,2 0,4 2 26,70x1,78
 K752-035 35 30,1 2,2 0,4 2 28,30x1,78
 K752-040 40 32,5 3,2 0,6 2,5 31,42x2,62
 K752-040/1 40 29 4,2 0,8 3,5 28,17x3,53
 K752-045 45 37,5 3,2 0,6 2,5 36,17x2,62
 K752-050 50 42,5 3,2 0,6 2,5 40,95x2,62
 K752-052 52 44,5 3,2 0,6 2,5 42,52x2,62
 K752-055 55 47,5 3,2 0,6 2,5 45,69x2,62
 K752-060 60 52,5 3,2 0,6 2,5 50,47x2,62
 K752-063 63 55,5 3,2 0,6 2,5 53,65x2,62
 K752-065 65 57,5 3,2 0,6 2,5 56,82x2,62
 K752-070 70 62,5 3,2 0,6 2,5 61,60x2,62
 K752-075 75 67,5 3,2 0,6 2,5 66,35x2,62
 K752-080 80 69 4,2 0,8 3,5 66,68x3,53
 K752-080/1 80 64,5 6,3 1,2 5,0 62,87x5,33
 K752-085 85 74 4,2 0,8 3,5 72,62x3,53
 K752-090 90 79 4,2 0,8 3,5 78,97x3,53
 K752-095 95 84 4,2 0,8 3,5 82,14x3,53
 K752-100 100 89 4,2 0,8 3,5 88,50x3,53
 K752-105 105 94 4,2 0,8 3,5 91,67x3,53
 K752-110 110 99 4,2 0,8 3,5 98,02x3,53
 K752-115 115 104 4,2 0,8 3,5 101,20x3,5
 K752-120 120 109 4,2 0,8 3,5 107,54x3,5
 K752-125 125 114 4,2 0,8 3,5 113,90x3,5
 K752-130 130 119 4,2 0,8 3,5 117,07x3,5
 K752-135 135 119,5 6,3 1,2 5,0 116,84x5,3
 K752-135/1 135 124 4,2 0,8 3,5 120,25x3,5
 K752-140 140 124,5 6,3 1,2 5 123,19x5,3
 K752-145 145 134 4,2 0,8 3,5 129,77x3,5
 K752-150 150 134,5 6,3 1,2 5 132,72x5,3
 K752-160 160 144,5 6,3 1,2 5 142,24x5,3
 K752-170 170 154,5 6,3 1,2 5 151,77x5,3
 K752-180 180 164,5 6,3 1,2 5 164,47x5,3
 K752-190 190 174,5 6,3 1,2 5 170,82x5,3
 K752-200 200 184,5 6,3 1,2 5 183,52x5,3
 K752-210 210 194,5 6,3 1,2 5 189,87x5,3
 K752-220 220 204,5 6,3 1,2 5 202,57x5,3
 K752-230 230 214,5 6,3 1,2 5 208,92x5,3
 K752-240 240 224,5 6,3 1,2 5 221,62x5,3
 K752-250 250 234,5 6,3 1,2 5 227,97x5,3
 K752-260 260 244,5 6,3 1,2 5 240,67x5,3
 K752-280 280 264.5 6.3 1.2 5 266,07X5,3
 K752-300 300 284,5 6,3 1,2 5 278,77x5,3

K752 is a two piece double-acting sealing set which consists of one special mixture PTFE prole 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
PERIPHERAL 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 K752 piston 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.