Back up ring - Import export

The POLYPAC® - Balsele is a compact rod seal consisting of an elastomeric sealing element and an integrated fabric reinforced base. Due to the radial pre-load an excellent sealing performance will be achieved even at low pressures. The fabric reinforced base prevents the seal from extrusion.

Zurcon® Dualseal is an excellent alternative to an O-Ring and Back-up Ring combination. The advantages are its resistance to twisting, stability at pulsating pressures and low risk of contamination. Dualseal is easy to install and has a long service life.

Turcon® Variseal® W2 is a single-acting seal consisting of a U-shaped jacket and a corrosion-resistant Slantcoil® spring. This spring provides an almost constant load regardless of hardware tolerances and seal wear. Suitable for reciprocating and light duty rotary movement, it is often interchangeable with an O-Ring and Back-up Ring.

Turcon® Variseal® W2 is a single-acting rod seal consisting of a U-shaped jacket and a corrosion-resistant Slantcoil® spring. The advantage of the seal lies in its low friction and relatively constant preloading force over a large deformation range. Suitable for reciprocating and light duty rotary movement, it is often interchangeable with an O-Ring and Back-up Ring.