HUBER also offers various selectable options for its pressure-tight doors. Inspection hatches for a good view into the tank and underwater floodlights to illuminate the drinking water reservoir.
Rectangular Pressure-Tight Door TT7 with Locking Levers
Access door for containers, especially in the field of potable water supply, pressure-tight up to a water gauge of 10 m
Pressure-tight door, pressure-tight up to a water gauge of 10 m, opening to the pressure side, ready for installation, to be lined on both sides (wall thickness ≥ 280 mm), rectangular, completely made from 1.4404 (AISI 316 L) stainless steel, statically certified.
Door, 5 mm thick, reinforced with U-shaped bent plate. Smooth door leaf on the pressure side. With circumferential square silicone seal, suitable for potable water, ozone resistant, certified to KTW and DVGW W 270 standards. Locking levers operable both from the door outside and, for safety reasons, also from the pressure side while the reservoir is empty. With stable maintenance-free hinge plates between the door and frame.
Frame, circumferential with one centre and two side gaskets, provided for embedding in concrete. Frame with lifting eyes.
Frame and door shielded arc-welded and acid bath cleaned before washing, drying and surface passivation.
Door opening variants:
- Hinges on left
- Hinges on right
HUBER rectangular pressure-tight door TT7 with locking levers
HUBER rectangular pressure-tight doors TT7 in a drinking water storage tank
HUBER rectangular pressure-tight door TT7 as inspection opening to the water chamber
HUBER rectangular pressure-tight door TT7 with locking levers and sight class
Half-height pressure-tight door for small accumulation areas, open on top
HUBER pressure-tight door TT7
HUBER pressure-tight door TT7 with inspection hatch and spotlight for setting in concrete
Pressure side view: HUBER pressure-tight door TT7 with inspection hatch and spotlight
View from unpressurised side: HUBER pressure-tight door TT7 with inspection hatch and spotlight
HUBER pressure-tight door TT7 with optional condensation water drain
Options
- Frame, for retrofitting, space required for the frame: 150 mm, circumferential. Prerequisite is a plane inner wall surface, tolerance: ± 1 mm per metre
- Pressure door for round tanks
- Centrally installed inspection window, inside diameter: 150 mm, with or without window wiper
- Installed LED underwater spotlight
- Installed cylinder lock (operable from one side)
- Locking by means of screw caps
- Pressure door with three-sided open-top frame for parapets, maximum water gauge = door height.
- Sanding of frame parts in contact with concrete
- Condensate drain on external door surface
- Doorstop with wedge
- Sampling valve on external door surface
- Partly submersible, lower part pressure-tight, upper part with an integrated inspection opening
- Provided for welding to the PE coating
- Potential equalisation on the frame
- Completely made of 1.4307 (AISI 304 L) stainless steel
Media
Videos and Animations
Downloads
Customer Information and Documents
FAQ
Frequently Asked Questions
Pressure-tight doors are optimally suited for use in drinking water reservoirs. They offer optimum tightness so that no drinking water can escape. The pressure-tight door is therefore also ideal as a maintenance opening when the reservoir is being cleaned. Of course, the seal and other components are also certified for use in drinking water applications.
Security doors, on the other hand, are specially designed for the drinking water supply of buildings with burglar alarm systems.
The maximum water column a HUBER pressure door can withstand is 30m. We can offer and use the HUBER Pressure-Tight Door TT7.30 for this purpose.
A standard HUBER TT7 pressure-tight door can withstand a water column of 10 m, which corresponds to a pressure of 1 bar.
HUBER SE offers three different types of closure for its pressure-tight doors. Locking levers, central closures and screw closures.
