DBM ZONDER WA 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 bu rings produced from thermoplastic to absorb transverse forces,It is often recommended to mount the guide rings (DWR / EDWR)
Construction machinery , fork-lift trucks , injection moulding machines , agricultural machinery , cranes and standard cylinders.
Easily assembled into one-piece piston because the back-up rings and guide rings are been 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 , DBM ZONDER WA piston seal is manufactured in FPM and PTFE material.
MATERIAL: POM 9901 / TPE 7301 / NBR 80 SH
|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/sn||≤0.5 m/sn||≤0.5 m/sn|
Note: The above data are maximum values and cannot be used at the same time.
|Sliding Surface ØD||≤0.4 μm||≤4.0 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.
CB = Custom build (price on request)
* = Stock item
Stock = 0 (and not a Stock* or CB product) -> minimum item value € 10.00