A superior water storage tank
can not be built with great panels alone.
At Sekisui, our peripheral products and accessories are also of the highest quality, playing a key role in ensuring the best protection of the water they help contain.


Anti-Rust
One of the main reasons for the contamination of stored water is the introduction of rust generated from the materials used on the tank. Sekisui employs the utmost cautions and the latest technology in designing parts that protect water from rust.
Assembly bolt material
Galvanised Steel (standard)
Stainless Steel (option)

Sealing Materials
Sekisui guarantees superior sealing performance from the gaskets and seals we use in our tanks.

Flat gasket T-gasket
Three-way gasket Seal (adhesive type)


PVC Nozzle (Flange type)
Size: 20A - 150A
Standards: JIS10K

FC Nozzle
(Male threaded type)

Size: 20A - 150A
Standards: JIS10K

Gun Metal Nozzle
(Screwed type)

Size: 13A - 80A

Air Vent
Material: ABS
Size: 50A x 180mm H
Size: 100A x 210mm H

Assembly Bolt
Material: Zinc plated mild steel
Size: 10mm

Electrode Seat and Cover
Material: PVC
Size: 50A

Internal Ladder
Material: PVC

External Ladder
Material: Hot-dip galvanised coating


Effective Capacity with TX Panels
These panels are ideal when maximum water capacity is required. In addition to 1 x 1 meter panels, 1 x 2 meter panels are also available.


Balancing Valve
This is a built-in valve for use in maintaining water balance inside dual compartment tanks. This valve offers a space-saving design with no external piping, thereby providing total cost reduction and easy installation. It is hygienic and superior in durability with an effective 150A large diameter portal.


Emergency Shutoff Valve
The Sekisui emergency shut-off valve is a built-in device designed to safeguard your water supply during earthquakes and other catastrophe situations. This valve cuts off flow from the tank when the pipeline becomes damaged or broken.