What is GRP (Glass fiber reinforced polyester)?
GRP modular water tanks are manufactured by curing sheets made of unsaturated polyester resin reinforced with chopped glass fiber under high pressure and temperature using the hot press molding method. The panels are produced in high-tonnage presses using molds heated to 150°C.
Thanks to the molds and manufacturing technology used, both surfaces of the panels are smooth, fully cured, and highly durable.
DESIGN
The raw materials of GRP tanks are chopped glass fiber and unsaturated polyester resin.
GRP panels are strong and long-lasting because they are produced using the hot press molding method.
They are manufactured in high-tonnage presses through hot mold pressing. Thanks to their formed structure, the panels gain structural strength and are resistant to pressure.
Additional thermal insulation can be applied to the panels.
Since GRP tanks have low thermal conductivity and are resistant to UV rays, they can also be used in outdoor environments.
The panels forming modular water tanks can be insulated against varying weather conditions and used as hot or cold water storage tanks.
Their compliance with food regulations has been confirmed through laboratory reports.
Esinoks GRP Modular Water Tanks are designed in accordance with EN 13280:2001 standards.
In Esinoks GRP modular water tanks, watertightness is ensured using special gaskets.
MATERIALS AND FEATURES
Esinoks GRP panels hold the WRAS certificate, which is internationally recognized.
Their compliance with food regulations has also been verified through tests conducted by TSE and documented in official reports.
They are resistant to UV rays and, because they do not transmit light, they prevent algae formation inside the tank.
GRP modular tanks are thermally insulated by coating the surface with polyurethane foam.
The insulation material used does not contain CFC or HCFC, and therefore does not harm the environment.
Compared to alternative materials, GRP tanks are more durable and resistant to ultraviolet (UV) radiation.
Esinoks offers customers two insulation thickness options: 25 mm and 50 mm.
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SAFETY FACTORS |
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FEATURE |
DESIGN REQUIREMENTS |
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SEISMIC LOAD |
Horizontal Seismic Kh: 2/3 – Vertical Kv = 1/3 The horizontal seismic load is designed according to a value of 1/3G. |
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HYDROSTATIC PRESSURE |
It is designed to withstand a hydrostatic pressure of water level x 0.1 kGF/cm2 (0.01 MPa). |
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SNOW LOAD |
It is designed to withstand a load of 60 kgf/m2 (at a snow depth of 30 cm). |
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WIND LOAD |
Wind load – 250 kgf/m2 (2.55 x 10⁻³ MPa). Designed to withstand a maximum wind speed of 60 m/s even without water in the tank. |
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opacıty |
Below 0.1% |
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WATER TEMPERATURE |
Suitable for use up to 50°C. |
DESIGN OPTIONS
GRP Modular Tanks are designed with internal or external reinforcement. In the case of internal reinforcement, the parts in contact with water are made of AISI 316 (EN 1.4401).
The convex base panels are resistant to the static pressure of water and do not pose a risk of leakage.
For tanks with an externally flanged base design, the concrete foundation detail is provided by Esinoks.
GRP modular tanks can be internally divided with specially designed partition panels.
Externally Flanged
Each tank has a concave drain panel that allows for the complete removal of dirt and sediment accumulated at the bottom of the tank.
Internally Flanged
Steel profiles manufactured by Esinoks are installed on a concrete base. After the steel profiles are leveled, a level check is performed using a laser level.
LAYOUT PLAN
CAPACITY TABLE
OUR COMPLETED PROJECTS
Emlak Konut – Niğde City
Diori Hamani International Airport – Niger
Söğütözü Residence – Ankara City