Description
Industrial Dual Laminate PP FRP Pickling Tank Manufacturer in Gujarat
Nikunj Fibre Glass is an industry-leading manufacturer, supplier, and exporter of PP FRP Pickling Tanks (Dual Laminate Polypropylene Lined Fiberglass Pickling Tanks) based in Vapi, Gujarat. Dual laminate construction provides the ultimate hybrid engineering solution for hot acid immersion: the inner virgin Polypropylene (PP) liner offers complete chemical inertness against concentrated pickling acids at elevated temperatures, while the outer filament-wound or contact-molded FRP fiberglass laminate imparts immense structural rigidity and mechanical strength.
Specifically engineered for wire galvanizing plants, steel pipe pickling mills, and fastener plating lines, our PP FRP pickling tanks are built following DVS 2205, BS 4994, and ASME RTP-1 design codes, ensuring decades of leak-free service without tank bulging.
Key Features & Advantages
- Dual Barrier Defense: The inner PP liner eliminates chemical degradation, while the outer FRP fiberglass shell prevents thermal expansion bulging and supports immense static bath weight.
- High Operating Temperature (95°C): Operates continuously at hot pickling bath temperatures up to 95°C (203°F) without thermal softening.
- Encapsulated Steel Reinforcement: Heavy structural steel box girders are encased within the composite lamination to support heavy crane drops of wire coils and pipe bundles.
- Zero External Corrosion: Unlike rubber-lined or epoxy-coated steel tanks that rust from exterior acid fumes, the outer FRP layer is 100% rustproof and weather resistant.
- Integral Fume Extraction Lip Ducts: Custom molded rim extraction lip hoods capture hazardous acid mist right at the liquid surface, protecting plant workers.
Technical Specifications
| Parameter | Specification Details |
|---|---|
| Design Codes | BS 4994, DVS 2205 Part 5, ASME RTP-1 Dual Laminate |
| Inner Liner Material | Virgin Polypropylene (PPH / PP-C) Liner (3 mm to 6 mm thickness) |
| Structural Material | FRP (Isophthalic / Vinyl Ester Resin reinforced with E-Glass) |
| Length & Dimensions | Custom lengths up to 20 meters | Width up to 3.5 meters | Depth up to 3 meters |
| Operating Temperature | Continuous duty up to 95°C (203°F) |
| Weld Testing | 100% High-Voltage Spark Testing (25 kV) before FRP backing lamination |
| Reinforcement | Encased structural steel I-beams and channel sections with FRP lamination |
Industrial Applications
- ✅ Steel Wire & Rod Pickling: Immersion of wire coils in hot hydrochloric acid (HCl 15-20%) and sulfuric acid baths.
- ✅ Hot Dip Galvanizing Lines: Pre-treatment acid pickling, flux tanks, and rinse water baths.
- ✅ Stainless Steel Tube Pickling: Nitric acid and hydrofluoric acid pickling and passivation tanks.
- ✅ Automobile Component Treatment: Degreasing, pickling, and phosphating dip lines.
Frequently Asked Questions (FAQ)
Q1: Why is PP FRP preferred over solid PP tanks for long pickling lines?
Solid PP sheets lose flexural modulus at temperatures above 60°C and can bulge under large fluid volumes. Dual laminate PP FRP uses outer fiberglass reinforcement to maintain complete structural rigidity even at 95°C.
Q2: How is the bond between PP and FRP achieved?
We utilize fabric-backed (polyester or glass fleece) virgin PP sheets. The fleece creates a permanent mechanical and chemical interlocking bond with the curing FRP resin, preventing liner delamination.
