Think VST Square Tanks

VST modular bolted sectional steel water storage tanks are designed to accommodate a large range of tank capacities and configurations.


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Think Square Tanks

VST sectional steel tanks come in a modular system, from capacities of 1.816kL to upward of 5000kL (5mL). Tanks are formed using prefabricated panels, cleats and internal bracing bolted together on site, to give an infinite range of sizes and capacities.

All mild steel components are hot-dipped galvanised as per SANS 121 (ISO 1461) and the tanks are sealed using our EPDM double flanged gasket which adds an extra 4mm double ribbed sealing solution. This is an important key factor for the water sealing and longevity of the tank.

The VST sectional steel tank have the advantage of “Flat Packed” palletized consignments for economical transport, and enables rapid on-site assembly.

These tanks are installed on civil engineered concrete plinths, castellated beams or the VST PR engineered and designed galvanised steel towers depending on client and site requirements

Think Tank Specs

Tank Panels
The nominal size of each panel after flanging is 1 220 mm × 1 220 mm with a combination flange at angles of 45° and 90° to the face of the panel on all sides.

Material Coating
Hot-dipped galvanising to SANS 121 (ISO 1461)

Tank Cover / Roof
IBR Zinc Alloy Sheeting

All VST Tanks are supplied with the following standard items:

– Level Indicator (Mechanical, of cat & mouse type, in metric scale for each compartment)
– Ladders (Internal & external mild steel ladders, hot-dipped galvanised – External ladders cat ladder type)

Four tank connections

– Hinged lockable manhole cover per compartment
– Bracing (Stays)
– Bolts, nuts & washers
– Pre-punched EPDM rubber gasket
– Air vent per compartment
– Butyl rubber mastic compound for cleats

Think Schematics


Tank Parts


The following products offer our time saving installation solution with regards to civil works.

Think Quality

VST attach great importance to the quality of our products. We manufacture and supply an extensive range of water storage tanks.

Think Innovation

VST we are always seeking out new and improved products and innovations for bulk water storage.

Think Cost Effective Solutions

VST will always provide customers with the most cost-effective solution possible. This is done to ensure that our customers, and communities, benefit the most from our products and services.

Think Solutions & Benefits

Killogram for kilogram our VST bolted section steel water storage tanks are stronger and last longer because of our uniquely designed bracing. Because we use in-house installation teams the tanks are built quickly and efficiently. The step by step on boarding assists our clients throughout the process from beginning to end. Our tanks can be used for potable/drinking water, harvesting rain water for irrigation or used for fire suppression.

Think Information

Our VST bolted sectional steel tanks can tolerate hot water temperatures up to 90 degrees Celsius.

OUR tanks can be insulated.

OUR VST Systems are not suitable to store petrol/diesel or any other hash or corrosive chemicals.

Our tanks can also be installed for harvesting rainwater.


You can be assured that you are investING WITH a trusted
name in THE water tank solutions industry.

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