SIMCO 520 (DOUBLE ACTION PISTONSEAL)

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DBM SIMCO 520 is a three piece double acting compact seal which consists of one fabric reinforced elastomeric sealing element and two thermoplastic guide back-up rings

PRODUCT ADVANTAGES:

  • Low friction , free of stick-slip
  • Improved abrasion resistance
  • Good dynamic and static sealing
  • Long service life
  • Reliable solution in water and water based media
     

APPLICATION:

Mining equipment , iron and steel industry , marine hydraulics and earth moving equipment.

INSTALLATION:

DBM SIMCO 520 profile has been designed to be installed in a closed or open grooves taking the indicated catalogue information into consideration. We recommend having open groove design for dimensions that are smaller than Ø 50mm. 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

NOTE: For special applications that require high temperatures , piston seal is manufactured in FPM and PTFE material.

PERMISSABLE SEALING GAP Smax (mm)
ØD 250 Bar 320 Bar 400 Bar 500 Bar
≤80 mm 0.60 0.55 0.45 0.35
>80 mm 0.65 0.60 0.50 0.40

 

MATERIAL: POM / COTTON FABRIC NBR 80 SH

 

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 ≤500 Bar ≤500 Bar ≤500 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 ≤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.

 

 

 

 

 

 

  

 

 

 

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# Vota code Name Application Material Pressure
(bar)
Temperature °C Sliding Speed (m/s)
zuiger-afdichting/dbm-simco-520 DBM SIMCO 520 SIMCO 520 (DOUBLE ACTION PISTONSEAL) PISTON FABRIC-NBR-POM 500 -30°C +105°C 0.5
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