OHT/ESR
At Velji Ratna Sorathia Infra Pvt. Ltd. (VRSIPL), we specialize in the construction of robust and efficient Overhead Tanks (OHTs) and Elevated Service Reservoirs (ESRs) that play a critical role in water supply systems. These elevated structures ensure uniform pressure, adequate storage, and uninterrupted distribution of potable water across residential, industrial, and municipal networks.
Our team handles every aspect — from geotechnical analysis and staging structure design to tank fabrication, pipeline integration, and safety installations. We construct ESRs using high-grade RCC or steel, with designs tailored to capacity, elevation, and local seismic or wind conditions. All construction complies strictly with IS codes and national water infrastructure standards.
Why ESR/OHT Structures?
Balanced Pressure Distribution
Our elevated tanks maintain consistent flow and pressure throughout the network without pump dependency.
Safe and Durable Structure
We construct RCC and steel tanks that resist weather, seismic activity, and long-term structural stress.
Fully Equipped for Access
All tanks include stairs, handrails, hatches, and safety features for inspection and daily maintenance.
Corrosion-Protected Interior
Internal tank surfaces are coated to prevent corrosion and preserve water quality throughout service life.
Whether it’s a small community reservoir or a high-capacity urban distribution tank, VRSIPL provides customized engineering solutions that balance aesthetics, function, and durability. Our elevated tanks are equipped with proper access ladders, platforms, guard rails, and safety features for maintenance personnel, ensuring operational safety throughout their service life.
With a proven track record of delivering ESRs ranging from 50,000 to 25,00,000 liters, we work with precision and commitment — supporting India’s growing demand for reliable and sustainable water infrastructure.
- VRSIPL designs ESRs to serve peak demand and fire flow requirements without affecting distribution stability.
- Structures follow IS 3370, IS 456, and NBC standards with proper reinforcement and thickness calibration.
- We build up to 25 lakh liter capacities with heights reaching 25+ meters, fully supported by staging columns.
- Wind, seismic, and hydrostatic loads are factored in to ensure durability in high-risk zones or open terrain.
- We install spiral staircases, M.S. ladders, and protective railings for safe access to all service points.
- RCC domes and slabs are designed for structural strength and are cast with high-grade water-proof concrete.
- Inlet, outlet, overflow, scour, and vent pipes are positioned for smooth function and minimal maintenance.
- Tanks are sealed with epoxy or food-grade coatings for clean water storage and algae resistance.
- ESRs are built on deep foundations or pile bases depending on the soil bearing capacity and tank size.
- Smart level indicators and float valves can be installed for auto-filling, overflow prevention, and real-time water level monitoring.
- We construct valve chambers and control rooms at base level for easy operations and pump control.
- VRSIPL delivers all ESRs with hydro testing, quality checks, and commissioning with full documentation.
















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