GRP Panel TANKS

About GRP Panel Tanks

A GRP panel, or Glass Reinforced Plastic panel, is a type of composite material made from a combination of glass fibers and a polymer resin, usually polyester or epoxy. This combination results in a strong and lightweight material that is commonly used in various industries for a wide range of applications.
GRP panels, composed of a polymer resin matrix reinforced with glass fibers, boast a high strength-to-weight ratio and exceptional corrosion resistance. Widely used in construction, transportation, and industrial applications, their manufacturing involves layering glass fibers in a mold, applying resin, and curing through heat and pressure, resulting in a durable material requiring minimal maintenance. However, cost considerations and vulnerability to extreme heat or fire are potential limitations.

Why Choose GRP Tanks

Resistance to corrosion

In contrast to steel, GRP (Glass Reinforced Plastic) exhibits complete resistance to corrosion. In instances where metal components are necessary, our GRP tanks incorporate top-tier stainless steel, known for its exceptional resistance to corrosion. This ensures a dependable and secure water supply, eliminating the necessity for continuous maintenance.This feature ensures the longevity of the tank by preventing rust or degradation over time.

Durability

Tanks are known for their robust and durable construction, ensuring they withstand harsh environmental conditions and maintain structural integrity over an extended period.The durability of a water tank is often determined by the strength and resilience of the materials used in its construction. Tanks made from high-quality materials such as polyethylene, fiberglass, or steel are known for their robustness.

Lightweight Design

Compared to traditional materials like steel, GRP tanks are considerably lighter. This feature simplifies transportation, installation, and handling, making them a practical choice for various applications.Water tanks with a lightweight design offer practical advantages during transportation, handling, and installation.The reduced weight simplifies logistics, making it easier to transport the tank to the installation site.

Excellent Heat Insulation

Water Tank Facility

Certificate/Test Report

1. Inner Reinforced GRP Water Tank

Internally Reinforced System
  • – It is possible that various capacity’s design and flexible space should be used by GRP panels standardized
  • – Excellent water tightness, hygienic conditions and non-leakage applied internally reinforced stay(Stainless)
NO .NameMaterialNO .NameMaterial
1Manhole PanelGRP11Roof Support PipeGRP ( Pultrusion )
2External LadderSS400 ( HDG )12Base FrameSS400 ( HDG )
3Internal Ladder GRP13Bolts and NutsInside STS : Bolt / Nut ( 304 , 316 ) , Washer ( 316 )
4Internal Tie RodSTS ( PET Coating ) , STS 304 , 316Roof Panel : acetyl cap bolt ( M10 )
5Internal BracketSTS ( Epoxy Coating ) , STS 304 , 316Outside : HDG Bolt + PVC Bolt cap
6Flange Bar , Flat BarSS400 ( HDG )Connection : HDG + Acetyl Cap ( M14 )
7External Bracket .Size : M10 , M14
8Corner Bracket14Sealing TapePVC Sealant + Butyl or EVA Sealant + PVC Sealant
9Bottom Bracket15Water Level GaugeAluminum Case + PE Clear Tube + Socket
10Corner Frame16Name PlateAluminum ( Water Tank Safety Management Instructions )
Strength & Durability of GRP Water Tank
SectionDesign Standard
Hydrostatic PressureWater pressure reinforcement 4 times standard
Transformation rate in filled u with water: Less than 1% form water tank heigh
Wind ForceLess than 60m/sec
Earthquake ForceStable and safe till magnitude 5.0 (Over magnitude 5.0, it needs additional reinforcement)
Snow load60Kg/㎡, , Snow fall less than 30cm
Illumination RateLess than 0.1%
Out-fitForceNo leakage under condition of vertical 100Kg after install of 100A fitting with 70mm span supprot
Water TemperatureUsable temperature: Less than 30℃, Limited temperature: Max 70℃
Water qualityTap water, well water: chlorine below 50mg/ℓ
Seawater: applicantion Externally Reinforced water tank(max 3m height)
Features of Internally Reinforced System
    Excellent Hygienic Conditions
  • – Internal tie-rod of water tank is coated with PE and internal bracket is coated with powder.
  • – Internal Bolt for tie-rod and bracket is coated with epoxy after fastening.
  • – Prevented rust appearance as Chlorine GAS stay through external assembly bolts(HDG) added PVC bolt-caps of water tank.
    Outstanding View
  • – Prevented white peril or rust appearance through external assembly bolts added bolt-capsofWaterTank, and outstanding view.
    Easy to Assembly
  • – Easy to assembly through internal and external optimized options of reinforced system.
    Best Structure Stability
  • – SUNGIL CO., LTD’s internally Reinforced System is verified structure stability of water tanks which have built in domestic and international sites for 20years.

2. External Reinforced GRP Water Tank

Externally Reinforced System

By using external reinforcement bar at the exterior, it is minimizing internal reinforcement bar. Strengthened GRP water tank system is to simplify construction and reinforce cleanliness.

NO NameMaterialNO NameMaterial
1Manhole PanelGRP10Base FrameSS400 ( HDG )
2External LadderSS400 ( HDG )Inside STS : Bolt / Nut ( 304 , 316 ) , Washer ( 316 )
3Internal LadderGRPRoof Panel : acetyl cap bolt ( M10 )
4Internal BracketSTS ( Powder coating ) , STS304 , 31611Bolts and NutsOutside : HDG Bolt + PVC Bolt cap
5External Support Tie - rodSS400 + Urethane CoatingConnection : HDG + Acetyl Cap ( M14 )
6External Pair Frame Size : M10 , 14
7Corner BracketSS400 ( HDG )12Sealing TapePVC Sealant + Butyl or EVA Sealant + PVC Sealant
8Corner Frame13Water Level GaugeAluminum Case + PE Clear Tube + Socket
9Roof support pipeGRP ( Pultrusion )14Name PlateAluminum ( Water Tank Safety Management Instructions )

Externally Reinforced System Structural Analysis

FEM – Water Tank Height (3MH-75m)

FEM – External Pair Frame (3MH-75m)

Result of Skid base strength review (Safety Factor 2.0)

HeightContentsBending Stress(kg/㎠)ResultRemark
3.0mHMain Skid BaseLong term1520 < 1600(Allowed value)OK
Short term2130 < 2400(Allowed value)OK