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K31

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  • K31
K31 - HeavyDutyRod Seal
  • General Features
  • Technicial Specifications
   KASTAŞ NO d (f8) D(H11) B(-0/+0,2) b n
 K31-025 PU 25 35 8,3 7,3 4
 K31-030 PU 30 40 11 10 4
 K31-030/1 30 40 8,3 7,3 4
 K31-031 PU 31,75 38,1 7,35 6,35 3
 K31-031/1 31,75 41,28 7,35 6,35 5
 K31-035 PU 35 50 10,5 9,5 5
 K31-038 PU 38,1 47,63 7,35 6,35 5
 K31-040 PU 40 55 10,5 9,5 5
 K31-040/1 PU 40 50 8,3 7,3 4
 K31-040/2 PU 40 55 12,4 11,4 5
 K31-044 PU 44,45 57,15 10,52 9,52 4,5
 K31-045 PU 45 60 12,4 11,4 5
 K31-050 PU 50 65 12,4 11,4 5
 K31-050/1 PU 50,8 60,32 10,52 9,52 4
 K31-050/2 PU 50,8 63,5 10,52 9,52 4,5
 K31-050/3 PU 50 60 8,3 7,3 4
 K31-055 PU 55 70 12,4 11,4 5
 K31-055/1 PU 55 68 14 13 4,5
 K31-057 PU 57,15 69,85 10,52 9,52 4,5
 K31-060 PU 60 75 12,4 11,4 5
 K31-060/1 PU 60 73 14 13 4,5
 K31-060/2 60 72 9.5 8.6 4.5
 K31-063 PU 63,5 76,2 10,52 9,52 4,5
 K31-063/1 63 75 9,6 8,6 4,5
 K31-065 PU 65 78 11 10 4,5
 K31-065/1 PU 65 80 10 9 5
 K31-069 PU 69,85 82,55 10,52 9,52 4,5
 K31-070 PU 70 85 12,4 11,4 5
 K31-070/1 PU 70 83 11 10 4,5
 K31-070/2 PU 70 85 10 9 5
 K31-070/3 PU 70 80 13 12 4
 K31-070/4 PU 70 85 11 10 5
 K31-070/5 70 82 9.5 8.6 4.5
 K31-075 PU 75 88 11 10 4,5
 K31-075/1 PU 75 90 10 9 5
 K31-076 PU 76,2 92,07 13,7 12,7 5,5
 K31-076/2 PU 76,2 88,9 10,52 9,52 4,5
 K31-080 PU 80 95 12,4 11,4 5
 K31-080/1 PU 80 93 11 10 4,5
 K31-080/2 PU 80 95 10 9 5
 K31-082 PU 82,55 95,25 10,52 9,52 4,5
 K31-085 PU 85 100 11 10 5
 K31-085/1 PU 85 105 16 15 6
 K31-085/2 85 97 9.5 8.6 4.5
 K31-088 PU 88,9 101,6 10,52 9,52 4,5
 K31-088/1 PU 88,9 104,77 13,7 12,7 5,5
 K31-090 PU 90 105 12,4 11,4 5
 K31-090/1 PU 90 105 11 10 5
 K31-090/2 PU 90 110 18 17 6
 K31-090/3 PU 90 110 15,5 14,5 6
 K31-090/4 PU 90 100 13 12 4
 K31-090/5 90 105 16.5 15 5
 K31-095 PU 95 110 11 10 5
 K31-095/1 PU 95 115 16 15 6
 K31-100 PU 100 120 15,5 14,5 6
 K31-100/1 PU 100 115 11 10 5
 K31-100/2 100 120 15.5 14 6
 K31-100/4 100 115 16 15 5
 K31-101 PU 101,6 114,3 15,28 14,28 4,5
 K31-101/1PU 101,6 117,47 15,27 14,27 5,5
 K31-105 PU 105 120 13 12 5
 K31-105/1 105 125 16 14.5 6
 K31-105/2 105 120 15.5 14.5 5
 K31-107 107,95 120,65 14,6 13,6 4,5
 K31-110 PU 110 130 13 12 6
 K31-110/1 PU 110 125 13 12 5
 K31-110/2 PU 110 130 15,5 14,5 6
 K31-114 PU 114,3 127 15,28 14,28 4,5
 K31-114/1 PU 114,3 133,35 16,87 15,87 6
 K31-115 PU 115 135 15,5 14,5 6
 K31-115/1 115 130 16.5 15 5
 K31-120 PU 120 140 13 12 6
 K31-125 PU 125 145 15,5 14,5 6
 K31-127 PU 127 146,05 16,87 15,87 6
 K31-130 PU 130 150 15,5 14,5 6
 K31-139 PU 139,7 152,4 15,28 14,28 4,5
 K31-140 PU 140 160 15,5 14,5 6
 K31-150 PU 150 160 15,5 14,5 4
 K31-150/1 PU 150 170 15,5 14,5 6
 K31-152 PU 152 171 16,9 15,87 6
 K31-160 160 175 15,5 14,5 5
 K31-180 180 205 19,2 18,2 7
 K31-180/1 180 195 15,5 14,5 5
 K31-185 185 205 19,5 18,5 6
 K31-220 220 245 20 19 7
 K31-230 230 250 16.5 15 6
 K31-240 240 260 16.5 15 6
 K31-290 290 315 21 19 7
 K31-340 340 365 21 19 7

K31 is a three piece single acting sealing set which consist of one elastomeric main sealing element with additional sealing lip , one special prole elastomer nitrile rubber that goes into the main sealing component and one thermoplastic back-up ring. 

PRODUCT ADVANTAGES

• Able to work in high pressures
• Superior sealing effect in low pressures
• Easy assembly into closed grooves
• Superior sealing effect with the secondary lip
• Secondary sealing lip provides extra protection against the ingress of dirt particles.
•High wear resistance
•Improved sealing gap due to the active back-up ring

APPLICATION
Mining equipment , iron and steel industry , metal injection machines , scrap cutters , marine hydraulics , cranes and mobile hydraulics.

MATERIAL   CODE
NBR 70 SHORE A NB7001
PU 94 SHORE A PU9401
POM   PM9901
OPERATING CONDITIONS
MEDIA Mineral oils(DIN 51524)  HFA ve HFB HFC
TEMPERATURE -30°C +100°C +5°C +50°C -30°C +40°C
PRESSURE ≤630 Bar ≤630 Bar ≤630 Bar
SPEED ≤0.5 m/sn ≤0.5 m/sn ≤0.5 m/sn
Note: The above data are maximum values and cannot be used at the same time.
    
 
SURFACE ROUGHNESS Ra Rmax
Sliding Surface Ød ≤0.4 μm ≤3.2 μm
Groove Base ØD ≤1.6 μm ≤10 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
Easily assembled into closed grooves according to the minimum diameter values that are given in the below table. Open grooves or special assembly tools should be used for the values that are outside this table. 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
K31 can be used in all type of cylinders safely due to the reason of perfect adaptation to the pressure changes.

 
MINUMUM DIAMETER VALUES FOR CLOSED TYPE OF GROOVES
(D-d)/2 (mm) ≤7.5 10 12.5 15
dmin (mm) 50 80 100 105
PERMISSIBLE SEALING GAP
 Pressure (Bar)     Smax (mm)                 
150 1.0
250 0.8
400 0.6
630 0.4
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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