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K518

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  • Hydraulic Piston Sealing Elements
  • K518
K518 - Compact Piston Seal
  • General Features
  • Technicial Specifications
   KASTAŞ NO D(H8) d(h9) B(+0,2) ds(h8) d1(±0,1) s(+0,2) n
 K518 025-016 25 16 13,5 22 24 2,1 4
 K518 032-022 32 22 16,4 28,5 30,5 6,35 4
 K518 035-025 35 25 16,4 31,4 33,5 6,35 4
 K518 040-030 40 30 16,4 35,4 38,5 6,35 4
 K518 040-030/1 40 30 12,5 37 39 4 4
 K518 040-032 40 32 15,5 36 39,4 3,2 4
 K518 040-032/1 40 32 10 37 39 4 4
 K518 044,4-028,57 44,45 28,57 19,05 39,85 43,12 6,35 5
 K518 045-029 45 29 18,4 40,4 43,5 6,35 5
 K518 045-035 45 35 16,4 40,4 43,5 6,35 4
 K518 050,8-34,92 50,8 34,92 19,05 46,22 49,48 6,35 5
 K518 050-034 50 34 20,5 46 49 3,1 5
 K518 050-034/1 50 34 18,4 45,41 48,66 6,35 5
 K518 050-038 50 38 20,5 46 49,4 4,2 4
 K518 055-039 55 39 20,5 51 54 3,1 5
 K518 055-039/1 55 39 18,4 50,37 53,65 6,35 5
 K518 055-045 55 45 12,5 52 54 4 4
 K518 060,32-44,45 60,32 44,45 19,05 55,72 58,98 6,35 5
 K518 060-044 60 44 20,2 56 59 3,1 5
 K518 060-044/1 60 44 18,4 55,39 58,65 6,35 5
 K518 060-048 60 48 20,5 56 59,4 4,2 4
 K518 063-047 63 47 20,5 59 62 3,1 5
 K518 063-047/1 63 47 18,4 58,39 61,63 6,35 5
 K518 063-051 63 51 20,5 59 62,4 4,2 4
 K518 065-049 65 49 20,5 61 64 3,1 5
 K518 065-050 65 50 18,4 60,41 63,64 6,35 5
 K518 066,67-50,80 66,67 50,8 19,05 62,09 65,27 6,35 5
 K518 070-050 70 50 22,4 64,18 68,34 6,35 6
 K518 070-054 70 54 20,5 66 69 3,1 5
 K518 075-055 75 55 22,4 69,2 73,3 6,35 6
 K518 075-059 75 59 20,5 71 74 3,1 5
 K518 080-060 80 60 22,4 74,15 78,3 6,35 6
 K518 080-062 80 62 22,5 76 79 3,6 5
 K518 080-066 80 66 22,4 76 79,4 5,2 5
 K518 085-065 85 65 22,4 79,15 83,3 6,35 6
 K518 090-070 90 70 22,4 84,15 88,3 6,35 6
 K518 090-076 90 76 22,4 86 89,4 5,2 5
 K518 095-075 95 75 22,4 89,15 93,31 6,35 6
 K518 100-075 100 75 22,4 93,13 98 6,35 6
 K518 100-086 100 86 22,4 96 99,4 5,2 5
 K518 110-085 110 85 22,4 103,1 108 6,35 6
 K518 110-096 110 96 22,4 106 109,4 5,2 5
 K518 115-090 115 90 22,4 108,1 113,02 6,35 6
 K518 115-101 115 101 22,4 111 114,4 5,2 5
 K518 120-095 120 95 22,4 113,1 118 6,35 6
 K518 120-106 120 106 22,4 116 119,4 5,2 5
 K518 125-100 125 100 25,4 118,1 123 6,35 6
 K518 130-105 130 105 25,4 123,1 128 6,35 6
 K518 130-105/1 130 105 25,4 123,1 128 9,52 6
 K518 135-110 135 110 25,4 127,6 132,5 9,52 6
 K518 140-115/1 140 115 25,4 132,6 137,5 9,52 6
 K518 140-115/2 140 115 25,4 133 138 6,35 6
 K518 140-118 140 118 26,5 136 139 5,1 6
 K518 150-125 150 125 25,4 142,6 147,5 9,5 6
 K518 150-128 150 128 26,5 146 149 5,1 6
 K518 160-130 160 130 25,4 153 157,5 6,35 7
 K518 160-135 160 135 25,4 152,6 157,5 9,52 6
 K518 160-143 160 143 26,5 156 159,4 7,2 5
 K518 165-143 165 143 26,5 161 163,5 5,25 4
 K518 170-148 170 148 26,5 166 169 5,1 6
 K518 180-150 180 150 35,4 172,94 177,87 6,35 7
 K518 180-155 180 155 25,4 171,72 177,1 12,7 6
 K518 180-158 180 158 26,5 176 179 5,1 6
 K518 180-163 180 163 26,5 176 179,4 7,2 5
 K518 190-165 190 165 25,4 181,72 187,05 12,7 6
 K518 200-175 200 175 31,5 196 199 6,6 6
 K518 200-175/1 200 175 25,4 191,62 197 12,7 6
 K518 200-180 200 180 31,5 196 199,4 9,2 6
 K518 210-185 210 185 25,4 201,62 207 12,7 6
 K518 220-200 220 200 31,5 216 219,4 9,2 6
 K518 250-225 250 225 25,4 241,62 247 12,7 6
 K518 250-230 250 230 31,5 246 249,4 9,2 6

K518 is a five piece double acting compact seal which consists of one elastomeric nitrile rubber sealing element , two polyester elastomer back-up rings on both sides to prevent extrusion into the sealing gap and two special profiled guide rings produced from thermoplastic to absorb transverse forces.

PRODUCT ADVANTAGES
•Superior radial load bearing capacity
•Economic sealing and guiding solution
•Simple groove design , one-piece piston possible
•Long service life
•Simple snap installation

APPLICATION
Mobile hydraulics , back-hoe loaders , fork-lift trucks , agricultural machinery , standard cylinders.
MATERIAL CODE
NBR 80 SHORE A NB8001
POM   PM9905
TPE   TP7301
OPERATING CONDITIONS
MEDIA Mineral oils (DIN 51524)  HFA and HFB HFC
TEMPERATURE -30°C +105°C +5°C +60°C -30°C +60°C
PRESSURE ≤400 Bar ≤400 Bar ≤400 Bar
SPEED ≤0.5 m/sec ≤0.5 m/sec ≤0.5 m/sec
Note: The above data are maximum values and cannot be used at the same time.

    

 
SURDACE ROUGHNESS Ra Rmax
Sliding Surface ØD ≤0.4 μm ≤4.0μm
Groove Base Ød ≤1.6 μm ≤6.3μm
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
Easily assembled into one-piece piston because the back-up rings and guide rings are produced in split forms. 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 , piston seal is manufactured in FKM and PTFE material.

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