Introduction
Surge Tanks are ASME-certified pressurized vessels designed to absorb sudden hydraulic surges, pressure
fluctuations, and water hammer in HVAC, industrial, and utility systems. They protect pipelines, pumps,
valves,
and sensitive components from mechanical shock and pressure spikes.
At NORDSTONE., our surge tanks are engineered with high-strength construction, precise
hydraulic
performance, and compliance with ASME Section VIII Div.1, PED, and NB Certification for
safe and
reliable surge management.
What is a Surge Tank?
A surge tank absorbs sudden pressure rises caused by rapid valve closure, pump start/stop, or
fluctuating system
loads. It temporarily stores excess fluid and releases it gradually, preventing water hammer and
mechanical stress.
- Cylindrical or spherical pressure vessel
- Air or nitrogen cushion for surge absorption
- Inlet/outlet nozzles for system integration
- Pressure relief and vent connections
- Drain port for maintenance
- Manway for inspection
- Optional thermal insulation
2) Capacity Range:
Surge tanks are manufactured from 100 Litres to 50,000 Litres, with custom sizes for
industrial,
utility, and high-pressure surge applications.
Typical Design Envelope
| Parameter |
Range |
Remarks |
| Diameter |
0.3 m – 4 m |
Custom sizes available |
| Height |
0.5 m – 6 m |
Depends on capacity |
| Volume |
100 L – 50,000 L |
Larger on request |
