Two-Way Surge Tank

A fully mechanical, power-free surge tank that controls negative pressures using atmospheric air.

Simple. Reliable. Power-Free Protection.

Two Way Surge Tanks offer a fully mechanical solution for surge protection, effectively controlling negative pressures in pipeline systems using atmospheric air—making them highly reliable and energy-independent.

Performance Overview

  • Protects pipelines from vacuum conditions during pump failure
  • Utilizes atmospheric air for surge mitigation
  • Discharges stored water to stabilize system pressure
  • Ideal for systems with high risk of negative pressure

Design Criteria & Sizing Philosophy

The tank volume is determined using Stephenson’s Formula, based on:

  • Pipeline profile and hydraulic conditions
  • Expected negative pressure scenarios
  • Required water volume to prevent vacuum formation

The system is typically integrated with air vessels or bladder vessels to provide comprehensive surge protection.

System Characteristics

  • Fully mechanical operation (no instrumentation required)
  • Dependent on air valves, NRVs, and isolation valves
  • Self-operating during transient conditions

Material of Construction

  • SA 516 Gr. 60/70

IS 2062 E-250

  • Custom materials as per project requirements

Key Advantages

  • No power requirement (energy-independent)
  • Zero running cost
  • Simple installation and operation
  • No compressors or auxiliary systems
  • High reliability due to mechanical simplicity