JDMA

APPLICATION RANGE
The JDMA tandem seal for multi-fluid outside sealing application is used to seal pistons and plungers. It can be used with mineral oils and in modified form with compressed air.
The JDMA seal consists of two parts, an elastic ring with 2 sealing lips and a slide ring of abrasion-resistant PTFE Bronze Compound with 2 sealing edges. Prior to fitting, the sealing lips protrude beyond the nominal diameter of the seal, and are pressed against the cylinder wall after fitting. Thuseffective sealing is provided even at zero pressure. The JTDMA seal is recommended for use where different fluids on each side are to be separated.It is also suitable for sealing grease chambers against the ingress of water or other fluids.