Available with either quick-acting or individually dogged operating mechanisms, these doors are generally manually operated, and are designed for pressures ranging from weathertight to 100' (30.5m) heads. See the information on high-pressure watertight doors for doors with pressure requirements over 100'.

Both single and double panel doors can be operated from both sides or from one side only. Options include view ports, remote operation & indication, cylinder assist, and insulation.