K49

K49 - Piston Seal
   KASTAŞ NO D(H9) d(h9) B(+0,2/-0,0) n r
 K49 028-020,5 28 20,5 3,2 2 0,2
 K49 055-039,5 55 39,5 6,3 3 0,3
 K49 100-79 100 79 8.1 5 0.4
 K49 100-84,5 100 84.5 6.3 3 0.4
 K49 110-89 110 89 8.1 5 0.4
 K49 110-94,5 110 94.5 6.3 3 0.4
 K49 115-94 115 94 8.1 5 0.4
 K49 120-99 120 99 8.1 5 0.4
 K49 125-104 125 104 8.1 5 0.4
 K49 125-104/1 125 104 10,5 7 0,4
 K49 130-109 130 109 8.1 5 0.4
 K49 140-119 140 119 8.1 5 0.4
 K49 150-129 150 129 8.1 5 0.4
 K49 160-139 160 139 8.1 5 0.4
 K49 180-159 180 159 8.1 5 0.4
 K49 200-179 200 179 8.1 5 0.4
 K49 25-17,5 25 17.5 3.2 2 0.2
 K49 32-24,5 32 24.5 3.2 2 0.2
 K49 35-24 35 24 4.2 2.5 0.4
 K49 40-29 40 29 4.2 2.5 0.4
 K49 45-34 45 34 4.2 2.5 0.4
 K49 50-39 50 39 4.2 2.5 0.4
 K49 55-44 55 44 4.2 2.5 0.4
 K49 60-44,5 60 44.5 6.3 3 0.4
 K49 60-49 60 49 4.2 2.5 0.4
 K49 63-47,5 63 47.5 6.3 3 0.4
 K49 63-52 63 52 4.2 2.5 0.4
 K49 65-49,5 65 49.5 6.3 3 0.4
 K49 65-54 65 54 4.2 2.5 0.4
 K49 70-54,5 70 54.5 6.3 3 0.4
 K49 70-59 70 59 4.2 2.5 0.4
 K49 75-59,5 75 59.5 6.3 3 0.4
 K49 80-64,5 80 64.5 6.3 3 0.4
 K49 85-69,5 85 69.5 6.3 3 0.4
 K49 90-74,5 90 74.5 6.3 3 0.4
 K49 95-79,5 95 79.5 6.3 3 0.4

K49 is a two piece double acting sealing set which consists of a special design polyurethane seal ring and a NBR elastomer ring as energizer.

PRODUCT ADVANTAGES
•Superior static and dynamic sealing
•Ability to move without vibration even at low running speeds
•No twisting in the house due to rectangular profile
•Standardized housing according to ISO 7425-1
•Easy installation
•Low axial housing heights

APPLICATION
•Construction machinery
•Agricultural machinery
•Injection molding machines
•General industrial applications
MATERIAL CODE
PU 60 SHORE D PU6001
NBR  80 SHORE A NB8001
OPERATING CONDITIONS
MEDIA Mineral oils (DIN 51524)  HFA and HFB HFC
TEMPERATURE -30°C +100°C +5°C +50°C -30°C +40°C
PRESSURE ≤400 Bar ≤400 Bar ≤400 Bar
SPEED ≤0.5 m/sec ≤0.5 m/sec ≤0.5 m/sec
Not: The above data are maximum values and connot be used at the same time.

    

 
SURFACE ROUGHNESS Ra Rmax
Çalışan Yüzey ØD ≤0.4 μm ≤4 μm
Kanal Dibi Ød ≤1.6 μm ≤10 μm
Kanal Yan Yüzü 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 on one-piece piston. 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
It is recommended choosing suitable material and quantity for guiding element regarding the purpose of application.
 
PERMISSIBLE SEALING GAP
B (mm)  Smax (mm)
  150 Bar 250 Bar 400 Bar
3.2 0.30 0.20 -
4.2 0.40 0.30 -
6.3 0.50 0.40 0.25
8.1 0.60 0.50 0.35

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 an in this respect it is quite important to use the S value lower than the above indicated numbers.