Heavy Duty Multi-Layer Water Tanks (500L – 5000L) Factory: Mankauli, Maheshpatti, Bihar – 847104
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SR POLYMERS
Water Tank Manufacturer
Request Tank Quotation Call: +91 9931232822 WhatsApp Us
Factory & Works
Mankauli, Maheshpatti, Bihar – 847104
6PPP+46H, Jale - Atarwel Path, Maheshpatti Capacity: 500 Ltr – 5000 Ltr | 3 Layer – 6 Layer
Polymer Layer Engineering

Available Layer Technologies & Categories

Every layer in our water tanks is rotationally bonded into a seamless monolithic wall. Compare our 3 Layer, 4 Layer, 5 Layer, and 6 Layer configurations below.

3 Layer Water Tanks Standard Residential

3 Layer Water Tanks

UV Protection & Food-Grade Purity

Durable triple-layer construction featuring UV protective outer layer, structural core, and food-grade inner layer for dependable daily water storage.

Technical Highlights:
  • Layer 1 (Outer): UV-Stabilized color polymer shield deflecting sunlight degradation.
  • Layer 2 (Middle): High-density black carbon barrier that completely blocks sunlight from entering.
  • Layer 3 (Inner): Mirror-smooth virgin food-grade polymer ensuring odorless, clean potable water.
  • Best Suited For: Everyday domestic overhead residential water storage.
Available Capacities: 500L, 750L, 1000L, 1500L
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4 Layer Water Tanks Thermal Shield

4 Layer Water Tanks

Thermal Foam Insulation & Weather Defense

Four-layer heavy-duty tank designed for enhanced thermal resistance, keeping water cooler during peak summer heat and ensuring structural rigidity.

Technical Highlights:
  • Layer 1 (Outer): Heavy UV-8 sun-shield protecting against intense atmospheric weathering.
  • Layer 2 (Insulation): Expanded micro-cellular thermal foam core keeping water cool in peak summer.
  • Layer 3 (Barrier): Carbon black light-blocking layer arresting photosynthesis and algae.
  • Layer 4 (Inner): Ultra-smooth non-toxic food-grade polymer certified for drinking water.
  • Best Suited For: Exposed rooftops with high sun exposure and summer heatwaves in Bihar.
Available Capacities: 750L, 1000L, 1500L, 2000L
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5 Layer Water Tanks Antimicrobial Defense

5 Layer Water Tanks

Antimicrobial Defense & Multi-Barrier Security

Premium five-layer insulation system with multi-barrier protection against sunlight, temperature variations, and environmental stress.

Technical Highlights:
  • Layer 1 (Outer): High-gloss pigmented polymer with titanium UV stabilizers.
  • Layer 2 (Insulation): Thermal foam barrier minimizing temperature swings.
  • Layer 3 (Carbon Black): Absolute opacity core guaranteeing zero light transmission.
  • Layer 4 (Antimicrobial): Active defense compound resisting bacteria, mold, and fungus.
  • Layer 5 (Inner): Food-grade virgin polymer providing crystal-clear water taste and aroma.
  • Best Suited For: Bungalows, schools, commercial pantries, and medical clinics.
Available Capacities: 1000L, 1500L, 2000L, 3000L
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6 Layer Water Tanks Maximum Heavy Duty

6 Layer Water Tanks

Maximum Structural Rigidity & Extreme Industrial Endurance

Maximum heavy-duty protection with six specialized polymer layers engineered for extreme durability, maximum insulation, and long-term water purity.

Technical Highlights:
  • Layer 1 (Outer): Heavy-duty weather armor with dual-phase UV inhibitors.
  • Layer 2 (Reinforcement): High-tensile structural polymer resisting high external impact.
  • Layer 3 (Thermal Foam): Maximum-density thermal foam barrier maintaining stable water temperature.
  • Layer 4 (Light Block): Deep carbon black matrix eliminating algae growth completely.
  • Layer 5 (Microbial Guard): Broad-spectrum anti-microbial agent embedded in polymer lattice.
  • Layer 6 (Inner Core): Certified virgin food-grade contact layer with mirror finish.
  • Best Suited For: Industrial processing, hospitals, large apartment complexes, and high hydrostatic demands.
Available Capacities: 1500L, 2000L, 3000L, 5000L
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Heavy Duty Commercial Tanks Commercial Bulk

Heavy Duty Commercial Tanks

High-Capacity Bulk Storage for Commercial Projects

High-capacity water storage solutions from 2000 Ltr to 5000 Ltr for commercial complexes, educational campuses, hospitals, and agricultural installations.

Technical Highlights:
  • Engineered for 1500 Ltr to 5000 Ltr high hydrostatic volume requirements.
  • Multiple circumferential ribs providing extreme hoop tensile strength against bulging.
  • Available in 4 Layer, 5 Layer, and 6 Layer heavy-duty specifications.
  • Large 450 mm to 500 mm threaded manhole for rapid maintenance and connection piping.
  • Best Suited For: Hotels, shopping complexes, educational campuses, and multi-unit housing societies.
Available Capacities: 1500L, 2000L, 3000L, 5000L
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Domestic Water Tanks Domestic Residential

Domestic Water Tanks

Compact Overhead Rooftop Solutions for Modern Homes

Compact to mid-sized tanks (500 Ltr, 750 Ltr, 1000 Ltr) tailored for residential homes, apartments, and rooftop water distribution.

Technical Highlights:
  • Compact footprints tailored for residential rooftops, stairwell heads, and compact terraces.
  • Manufactured in 500 Ltr, 750 Ltr, and 1000 Ltr standard capacities.
  • Available in 3 Layer, 4 Layer, and 5 Layer configurations.
  • Lightweight handling during crane or stairwell placement with high structural resilience.
  • Best Suited For: Single family residences, individual apartment floors, and residential duplexes.
Available Capacities: 500L, 750L, 1000L
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Cross-Section Engineering

Anatomy of an SR POLYMERS Multi-Layer Tank

Unlike traditional single-wall tanks that become brittle and promote green algae under the sun, our multi-layer rotational molding fuses multiple specialized polymer grades into one solid, impenetrable vessel.

1
Outer Protective Skin (UV Shield)

Contains UV-8/UV-12 chemical stabilizers to prevent sun embrittlement, cracking, and chalking.

2
Black Carbon Core (Anti-Algae Light Barrier)

100% opaque carbon black layer that blocks sunlight penetration, stopping algae formation completely.

3
Expanded Thermal Foam Layer (In 4L, 5L, 6L)

High-efficiency insulating cellular foam keeping water cooler during boiling summer months.

4
Mirror-Smooth Virgin Food-Grade Inner Core

Certified virgin polymer ensuring your drinking and cooking water remains 100% odorless, non-toxic, and pure.

Plant Standards

Why Bihar Trusts SR POLYMERS Tanks

Manufactured directly at our Mankauli, Maheshpatti facility in Bihar, our multi-layer tanks are engineered specifically for local climate realities: scorching summer sun, heavy monsoon rain, and hard water minerals.

100% Virgin Polymer

Zero recycled scrap plastics. Consistent polymer melt flow and extreme molecular strength.

Thermal Insulation

Water stays comfortably cool even when ambient rooftop temperatures surpass 42°C in Bihar.

Factory Direct Supply

Dispatched directly from Mankauli, Maheshpatti to dealers, contractors, and project sites.

500L – 5000L Range

7 standard capacities with custom layer configurations tailored to your exact application.

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Technical Guidance

Multi-Layer Water Tank FAQs

Find answers to common technical questions regarding layer configurations, thermal insulation, and material purity.

A single layer tank allows sunlight to penetrate, which warms the water and triggers rapid algae and bacterial growth. Multi-layer tanks from SR POLYMERS use an outer UV shield, a black carbon light barrier to completely stop photosynthesis, an optional thermal foam layer to control water temperature, and an inner virgin food-grade layer for absolute hygiene.

The insulation layer consists of expanded micro-cellular polymer foam. This creates millions of tiny air pockets that act as a thermal barrier between the burning exterior sunlight and the stored water. During hot summers in Bihar where ambient temperatures exceed 42°C, the insulated water stays noticeably cooler and comfortable for bathing, cooking, and drinking.

No. SR POLYMERS strictly manufactures water tanks from 100% virgin food-grade polymer resin. We never blend regrind or post-consumer recycled plastic into our structural or contact layers, ensuring full compliance with food contact standards, maximum tensile strength, and zero water odor.

Because Bihar experiences intense direct sunlight and extreme summer heat, we strongly recommend our 4 Layer (Foam Insulated) or 5 Layer (Antimicrobial) models for residential rooftops. They deliver the best balance of cooling insulation, UV longevity, and algae protection.

Circumferential ribs are horizontal structural bands molded into the tank wall. They provide hoop tensile strength, preventing the tank walls from bulging outward under the intense hydrostatic water pressure when the tank is filled to capacity.

Yes. Whether you require a compact 500 Ltr tank or an industrial 5000 Ltr tank, SR POLYMERS can configure 3 Layer, 4 Layer, 5 Layer, or 6 Layer options according to your project requirements and budget.

The threaded twist-lock lid ensures a tight seal that prevents airborne dust, insects, bird droppings, and rainwater runoff from entering the water reservoir, keeping your drinking water safe and potable.

Our standard vertical tanks are specifically engineered for above-ground overhead or ground-level flat concrete platform installations. They should always be placed on a continuous flat surface without overhangs or sharp point loads.

You can request a quotation directly through our website contact form or by visiting our manufacturing plant at 6PPP+46H, Jale - Atarwel Path, Mankauli, Maheshpatti, Bihar 847104. We supply direct to contractors, institutions, dealers, and homeowners across all Bihar districts.

Every production batch undergoes rotational mold cycle timing control, wall thickness ultrasonic measurements, impact drop testing, and hydrostatic water pressure testing to verify zero structural leaks or wall defects.

Have specific questions regarding tank installation or layer selection for your building?

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Advanced Multi-Layer Polymer Engineering & Food-Grade Purity

Multi-Layer Water Storage Tanks: 3 Layer to 6 Layer Protection

SR POLYMERS manufactures heavy-duty water storage tanks engineered with 100% virgin food-grade polymer at our advanced rotomolding plant at Mankauli, Maheshpatti, Bihar – 847104. Designed to withstand severe weather, ultraviolet radiation, and thermal extremes.

SR POLYMERS Multi-Layer Rotomolding Water Tank Manufacturing Plant Maheshpatti Bihar
Precision Rotomolding & 100% Virgin Food-Grade HDPE Polymer Engineering
ROTATIONAL MOLDING SPECIFICATION

Uniform Wall Thickness & Jointless Monolithic Shell

Our rotational molding manufacturing process ensures uniform wall thickness with zero joints or weld lines. Using 100% virgin food-grade polymer granules, expanded foam insulation, and carbon black UV barriers, each water tank is built for superior tensile strength, weather resistance, and hygienic drinking water storage across Bihar.

Zero Toxic Leaching UV Sun-Shield Layer Thermal Foam Core
100% Virgin Food-Grade Polymer

100% Virgin Food-Grade Polymer

Molded exclusively from pure virgin polymer granules with zero recycled scrap. Non-toxic, non-leaching inner surface keeps stored drinking water fresh, odorless, and pure.

Multi-Layer Thermal Shield

Multi-Layer Thermal Insulation

Engineered middle foam layer creates a thermal barrier that resists heat transfer, keeping stored water significantly cooler during extreme North Bihar summer heatwaves.

UV Sun-Shield Barrier

UV Sun-Shield & Algae Barrier

Outer layer enriched with high-grade UV stabilizers prevents plastic breakdown from direct sunlight exposure, while carbon black barrier blocks light to halt algae growth.

Heavy Duty Ribbed Wall Strength

Heavy-Duty Ribbed Wall Strength

Precision rotational molding ensures uniform wall thickness and circumferential reinforcement ribs for superior resistance against hydrostatic water pressure and wind.

Rotomolding Manufacturing & Purity Process

1

Raw Material Inspection

100% virgin food-grade polymer granules tested for density, melt flow index, and tensile strength.

2

Bi-Axial Rotational Molding

Multi-axis high-temperature rotational molding guarantees uniform wall distribution without weak seams.

3

Co-Extruded Multi-Layer Fusion

Distinct polymer layers (3 to 6 layers) fused molecularly to form an impenetrable, unified tank shell.

4

Quality & Hydrostatic Testing

Every batch undergoes drop impact, hydrostatic pressure, and wall thickness ultrasonic testing before dispatch.

Factory Direct Delivery & Supply Across Bihar
Maheshpatti & Mankauli Darbhanga Jale Madhubani Samastipur Muzaffarpur Sitamarhi Begusarai Patna
Request Factory Quotation Explore Tank Capacities (500L – 5000L) View Layer Specifications (3L – 6L)
Bihar Supply Network

Water Tank Distribution Across Bihar

Factory-direct dispatch from Mankauli, Maheshpatti (6PPP+46H, Jale - Atarwel Path) across major districts and towns in Bihar.

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Popular Water Storage Tank Solutions

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