K503

K503 - Compact Piston Seal
   KASTAŞ NO D(H9) d(h10) ds(h8) d1(+0.0/-0.1) B(+0.2/-0.0) s(+0.1/-0.0) n
 K503-101,6-82,55 101.6 82.55 95.83 99.57 19.43 6.35 5
 K503-101,6-82,55/1 101.6 82.55 95.07 99.57 19.43 12.7 5
 K503-107,95-88,9 107.95 88.9 101.42 105.92 19.43 12.7 5
 K503-114,3-95,25 114.3 95.25 107.72 112.27 19.43 12.7 5
 K503-120,65-101,6 120.65 101.6 114.07 118.68 19.43 12.7 5
 K503-127-107,95 127 107.95 120.42 124.97 19.43 12.7 5
 K503-139,7-120,65 139.7 120.65 133.12 137.67 19.43 12.7 5
 K503-152,4-133,35 152.4 133.35 145.82 150.37 19.43 12.7 5
 K503-177,8-158,75 177.8 158.75 171.22 175.77 19.43 12.7 5
 K503-203,2-184,15 203.2 184.15 196.62 201.17 19.43 12.7 5
 K503-28,57-19,05 28.57 19.05 23.8 27.05 11.1 6.35 2.5
 K503-31,75-22,22 31.75 22.22 26.97 30.22 11.1 6.35 2.5
 K503-34,92-25,4 34.92 25.4 30.15 33.4 11.1 6.35 2.5
 K503-38,1-28,57 38.1 28.57 33.55 36.57 11.1 6.35 2.5
 K503-38,1-28,57/1 38.1 28.57 33.32 36.57 11.1 9.52 2.5
 K503-41,27-31,75 41.27 31.75 36.47 39.75 11.1 9.52 2.5
 K503-44,45-34,92 44.45 34.92 39.65 42.92 11.1 9.52 2.5
 K503-47,62-38,1 47.62 38.1 42.82 46.1 11.1 9.52 2.5
 K503-50,8-38,1 50.8 38.1 46.25 49.28 14.52 6.35 3.5
 K503-50,8-38,1/1 50.8 38.1 46 49.28 14.52 9.52 3.5
 K503-57,15-44,45 57.15 44.45 52.35 55.63 14.52 9.52 3.5
 K503-63,5-50,8 63.5 50.8 58.95 61.98 14.52 6.35 3.5
 K503-63,5-50,8/1 63.5 50.8 58.7 61.98 14.52 9.52 3.5
 K503-69,85-57,15 69.75 57.15 65 68.33 14.52 9.52 3.5
 K503-76,1-63,5 76.2 63.5 70.46 74.68 14.52 6.35 3.5
 K503-76,1-63,5/1 76.2 63.5 71.35 74.68 14.52 9.52 3.5
 K503-82,55-69,85 82.55 69.85 77.7 81.03 14.52 9.52 3.5
 K503-88,9-76,2 88.9 76.2 83.16 87.38 14.52 6.35 3.5
 K503-88,9-76,2/1 88.9 76.2 84.05 87.38 14.52 9.52 3.5
 K503-95,25-82,55 95.25 82.55 88.67 93.22 14.52 12.7 3.5

K503 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 sealing performance
•Economic sealing and guiding solution
•Simple groove design , one-piece piston possible
•No need for extra guide rings with compact design
•Simple snap-fit installation APPLICATION
Standard cylinders
MATERIAL CODE
NBR 80 SHORE A NB8001
POM   PM9901
TPE   TP7301
OPERATING CONDITIONS
MEDIA Mineral oil (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.
    
 
SURFACE 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.