Description
High-Performance PVC/FRP Dual Laminate Chemical Storage Tanks
Nikunj Fibre Glass is a leading manufacturer and exporter of PVC FRP Tanks (PVC/FRP Dual Laminate Storage Tanks) in Vapi GIDC, Gujarat. Since 1992, we engineer heavy-duty industrial equipment for aggressive chemical environments.
Dual laminate technology offers superior fluid handling. Specifically, an internal thermoplastic PVC (Polyvinyl Chloride) liner provides exceptional chemical resistance. Meanwhile, an external Fiberglass Reinforced Plastic (FRP) casing delivers high mechanical hoop strength.
As a result, our PVC-FRP tanks outlast rubber-lined steel and poly vessels. In addition, they withstand severe thermal cycles without cracking. Therefore, chemical plants achieve lower maintenance costs and longer vessel life.
Key Industrial Advantages of PVC FRP Tanks
- Dual Laminate Protection: The inner PVC liner blocks corrosive chemicals completely. Meanwhile, the outer structural FRP shell absorbs all pressure, wind forces, and external loads.
- Unmatched Acid Resistance: The material withstands concentrated Hydrochloric Acid (HCl up to 33%). In addition, it easily resists Wet Chlorine gas, Sodium Hypochlorite (NaOCl), and pickling acid mixtures.
- 100% Spark-Tested Welds: Our technicians weld all interior PVC joints using hot-gas extrusion. Furthermore, we test every weld seam with a 15 kV to 20 kV spark tester to verify zero pinholes.
- Strong Chemical-Mechanical Bond: We bond glass-backed PVC sheets with high-grade structural resin. Consequently, our tanks achieve shear bond strength above 7 MPa without delamination.
- Weatherproof Exterior Finish: We coat the exterior with an isopthalic UV-resistant gel-coat. Because of this protective layer, the vessel resists sun exposure and airborne chemical fumes.
- Lightweight Design: These composite tanks weigh one-fourth as much as rubber-lined steel. Therefore, they simplify installation and reduce civil foundation requirements.
Technical Specifications: PVC FRP Storage Tanks
| Technical Parameter | Specification & Engineering Standard |
|---|---|
| Design & Fabrication Standards | BS 4994:1987 / ASTM D3299 / ASME RTP-1 Dual Laminate Guidelines / EN 13121 |
| Internal Corrosion Liner Material | Virgin Unplasticized PVC (uPVC) / High-Temperature CPVC (Fabric-backed / Chemically treated) |
| PVC Liner Thickness | 3.0 mm to 6.0 mm (Weld seams 100% spark tested @ 15–20 kV) |
| Structural Exterior Laminate | High-grade Isophthalic Polyester / Vinyl Ester Resin reinforced with E-Glass CSM and Woven Roving (WR) |
| FRP Shell Thickness | 6.0 mm to 25.0 mm (Engineered based on liquid head height, diameter & specific gravity) |
| Capacity Range | 500 Litres to 50,000 Litres (0.5 m³ to 50 m³ / 50 KL) |
| Operating Temperature Range | -10°C to +60°C (Standard PVC liner) / up to +85°C (CPVC dual laminate liner) |
| Specific Gravity Rating | Designed to safely store liquids with specific gravities from 1.0 to 1.85 g/cm³ |
| Vessel Orientations & Configurations | Vertical Cylindrical Flat Bottom / Conical Bottom / Dished Ends, Horizontal Cylindrical with MS/FRP Saddles, Rectangular Pickling / Electroplating Tanks |
| Nozzle Connections & Fittings | ANSI Class 150# / DIN PN10 flanged nozzles, blind flanges, manholes (450mm/600mm), level sensor ports, drain outlets, lifting lugs, hold-down anchor brackets |
| Standard Warranty | Comprehensive manufacturer guarantee backed by 30+ years of industrial fabrication expertise |
Chemical Resistance & Storage Applications
Our PVC-FRP dual laminate vessels serve demanding chemical and processing sectors across India:
- Hydrochloric Acid (HCl 30%–33%): The tank stores commercial grade HCl safely. For example, it stops acid permeation that damages conventional FRP resin barriers.
- Sodium Hypochlorite (NaOCl Bleach): The inert PVC surface resists strong oxidizers. In fact, it prevents the rapid degradation seen in rubber-lined tanks.
- Sulfuric Acid (H2SO4 up to 70%): Chemical units use this vessel for ambient battery acid. Furthermore, it works reliably in effluent neutralization systems.
- Metal Finishing & Electroplating: Surface treatment plants deploy our tanks for anodizing and pickling. Additionally, they handle chromic and copper plating baths.
- Water & Wastewater Treatment (ETP/STP): Plants use these tanks for chemical dosing. Specifically, they store ferric chloride, alum, and caustic soda.
- Chlor-Alkali Synthesis: Facilities utilize these vessels for chlorine scrubber liquid retention. Moreover, they operate efficiently as vacuum receivers.
Frequently Asked Questions (FAQ)
Q1: What is a PVC FRP Dual Laminate Tank?
A: A PVC FRP Tank combines an inner PVC chemical barrier with an outer structural fiberglass shell. Specifically, the PVC liner prevents chemical corrosion. Meanwhile, the exterior FRP composite provides high mechanical strength.
Q2: Why choose PVC FRP over rubber-lined steel tanks?
A: Rubber-lined steel vessels corrode externally and weigh four times more. In contrast, composite PVC-FRP tanks resist external weather completely. Therefore, they offer lower maintenance costs and longer service life.
Q3: Does Nikunj Fibre Glass manufacture custom size tanks?
A: Yes, we fabricate custom vessels from 500 Litres to 50,000 Litres in Vapi, Gujarat. In addition, we design custom flanged nozzles, manholes, and level indicators. Consequently, our vessels meet your exact plant footprint.
Custom Engineered to Your Process Requirements
Our engineers customize every PVC FRP Tank for your specific chemical and temperature conditions. In addition, we design tanks to match your exact site layout. Contact our technical team in Vapi GIDC today for detailed GA drawings and direct factory quotes.
