Deflatable seals

Deflatable seals for yacht doors and hatches

Deflatable seals for yacht doors and hatches

Watertightness of hulls

The use of rubber seals for passenger ships is subject to international regulations. To meet these regulations the options for the design of rubber seals for yacht doors are limited in areas vital to the buoyancy of the ship. In case of a calamity, the hull’s watertightness must be guaranteed to allow for ample rescueing time.

  • Compression seals  are the first choice, but these call for heavy electric drives and hinges to operate and rotate doors in place.
  • Inflatable seals depend on positive pressure within the seal’s internal air chamber to assure watertightness by expansion. In case of a calamity, a power malfunction or punture of these seals can compromise watertightness.


Apart from using a double seal or backup seal there’s another solution

Deflatable seals : advantages combined

Deflatable seals for yacht doors and hatches combine the safety of compression seals with the advantages of inflatable seals.

  • Hinge clearance : by deflating a deflatable seal clearance is created to manoeuvre doors and hatches in place. Hinges can be of a single action style, since there’s less need for movement in 2 planes.
  • Drives : the number and thrust of drives to actuate the doors or hatches is decreased :
    –  Single plane motion
    –  Lighter construction requiring less thrust
  • Auto-sealing

During closing and opening of door or hatch seals must be deflated to create clearance to move doors. In case of a calamity a deflatable seal is independent of any of the ship’s system and will still provide a watertight seal.

Deflatable seal

Keeping up with COVID-19

This rapidly evolving corona-virus (COVID-19) has imposed an unsettling, fluid situation upon our community and its businesses. While the team here still aims to maintain a “business as usual” approach, we are making a number of significant changes to our operations to account for a situation that is far from normal. Governmental orders in the fight against the spread of the corona-virus (COVID-19) lead to the partial or complete closing of several production lines or designation of lines for the production of crucial parts for essential industries like food and pharma. As a direct result confirmed or usual lead times may not be met. In the current situation the delay cannot be determined. With the closing of factories in certain areas we need to make some changes to standard terms. To can keep operational and safeguard our financial position we must change certain terms. These will be announced and confirmed upon receipt of orders. Apologies for the inconvenience. Take care of yourself so you can take care of others!!