Horizontal Water Tanks UAE
When height is the constraint, horizontal tanks deliver the same UAE Municipality Certified storage in a lower profile — PVC from 100 USG and GRP up to 20,000 USG.
Horizontal water tanks solve the problem that vertical tanks cannot: storing significant water volume in locations where available headroom is the limiting factor rather than floor area. A horizontal tank lies on its side, with its cylindrical axis parallel to the ground, supported on saddle mounts. This orientation typically reduces the tank height by 40 to 60 percent compared to a vertical tank of the same capacity, while increasing the floor footprint by a similar factor. In UAE properties, horizontal tanks are most commonly specified for low-ceiling mechanical rooms and plant areas where a vertical tank would not clear the structure above, for under-stair and under-counter positions in villas and commercial fit-outs, for transport and delivery applications where tanker trucks and trailer-mounted tanks need to maintain a low centre of gravity, and for farms and agricultural facilities where multiple tanks are deployed across open ground and a stable wide footprint is preferred over height. KHAZAAN supplies horizontal tanks in PVC polyethylene from 100 USG to 2,000 USG and GRP fiberglass from 300 USG to 20,000 USG, all UAE Municipality Certified with full warranty support.
Technical Specifications
| Specification | Detail |
|---|---|
| PVC Horizontal Capacity Range | 100 USG (379L) to 2,000 USG (7,570L) |
| GRP Horizontal Capacity Range | 300 USG (1,135L) to 20,000 USG (75,700L) |
| PVC Construction | 3-layer or 5-layer rotational moulded polyethylene on saddle supports |
| GRP Construction | Glass Reinforced Plastic with food-grade resin inner liner, on saddle frame |
| PVC Warranty | 5 years from purchase date |
| GRP Warranty | 2 years from purchase date |
| Certification | UAE Municipality Certified — both materials |
| Key Advantage vs Vertical | Lower installed height for the same storage volume |
| Installation | On saddle supports included with tank |
Key Benefits
Who Uses This Tank?
Low-Ceiling Plant Rooms and Mechanical Spaces
The primary UAE use case for horizontal tanks. Where a rooftop or basement plant room has insufficient headroom for a vertical tank of the required capacity, a horizontal tank provides the same storage volume within the available height envelope.
Agricultural and Farm Water Storage
Farms, date plantations, and greenhouse operations across UAE use horizontal tanks for irrigation water storage. The wide stable footprint suits open-ground deployment, and the tanks are easily repositioned by forklift or front-loader as irrigation needs change.
GRP Large-Capacity Commercial Storage
GRP horizontal tanks from 5,000 to 20,000 USG are used for large commercial and industrial water storage where either horizontal orientation suits the site better than vertical, or the required capacity exceeds what a standard vertical tank can deliver in the available height.
Why Buy From KHAZAAN?
All tanks meet UAE potable water storage requirements
We stock tanks from UAE's top certified manufacturers
Same-week delivery across all 7 emirates
Frequently Asked Questions
What is a horizontal water tank?
A horizontal water tank is oriented with its cylindrical axis parallel to the ground, supported on saddle mounts that cradle the underside of the tank body. The tank's length is greater than its height, giving it a lower profile than an equivalent vertical tank. Horizontal tanks are chosen specifically for applications where headroom is more restricted than floor area.
What is the difference between horizontal and vertical water tanks?
Vertical tanks stand upright with height greater than diameter, giving a small floor footprint but requiring more headroom. Horizontal tanks lie on their side with length greater than diameter, giving a larger floor footprint but requiring less headroom. For rooftop plant rooms with limited area but adequate height, vertical tanks are standard. For low-ceiling plant rooms, under-stair positions, and transport applications, horizontal tanks are the appropriate choice.
What sizes do horizontal water tanks come in UAE?
KHAZAAN supplies PVC polyethylene horizontal tanks from 100 USG (379 litres) to 2,000 USG (7,570 litres). GRP fiberglass horizontal tanks are available from 300 USG (1,135 litres) to 20,000 USG (75,700 litres). Custom GRP horizontal tanks can be produced to larger capacities for specific project requirements.
Are horizontal water tanks UAE Municipality Certified?
Yes. All horizontal water tanks supplied by KHAZAAN — both PVC polyethylene and GRP fiberglass — carry UAE Municipality Certification for potable water storage. Certification confirms compliance with UAE food-grade material, UV resistance, and structural standards.
Do horizontal tanks need special supports?
Yes. Horizontal tanks are supplied with saddle supports that cradle the cylindrical tank body at two points along its length, distributing the weight evenly and elevating the tank base off the ground surface. The saddles are either integrated into the GRP tank structure or supplied as separate steel or polyethylene cradles for PVC horizontal tanks. The tank and saddles together must rest on a level, structurally adequate concrete pad.
Can horizontal tanks be used for rooftop installation in UAE?
Yes, where headroom permits. Horizontal tanks are sometimes installed on rooftops when height clearance under a water tank cradle is limited by roof structure or parapet design. They are less common on UAE rooftops than vertical tanks because most UAE building rooftops have adequate height for standard vertical tanks.
What warranty do horizontal water tanks carry?
PVC polyethylene horizontal tanks supplied by KHAZAAN carry a 5-year manufacturer's warranty. GRP fiberglass horizontal tanks carry a 2-year manufacturer's warranty.
Are horizontal tanks suitable for transport and delivery?
Yes. Horizontal tanks are the standard configuration for water delivery tankers and trailer-mounted tanks in UAE. The low centre of gravity and stable saddle mounting make them inherently safer for road transport than vertical tanks. Purpose-built transport tanks have additional securing provisions for road use.
How much floor space does a horizontal tank need compared to a vertical tank?
A horizontal tank requires approximately 40 to 60 percent more floor area than a vertical tank of the same capacity, because the cylindrical body is oriented along rather than across the horizontal plane. In exchange, the horizontal tank's installed height is approximately 40 to 60 percent less. The choice between configurations depends entirely on whether floor area or headroom is the binding constraint at the installation location.
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