Bladder Surge Vessel

Standards

PED 97/23/EC, EN 13445, ASME VIII-Div.1, PD 5500, CODAP 2000

Materials

All available material options per part. Click a pill to set it in the configurator.

body

Carbon steelStainless steel

bladder

PolyurethaneButyl (ACS/WRAS for potable water)

Approvals

Features

• Internal bladder physically separates pressurised air from pipeline fluid, preventing air absorption and maintaining the cushion volume indefinitely without compressor intervention
• Absorbs positive and negative pressure transients caused by pump trip or rapid valve closure, protecting mains and equipment from water hammer damage
• Butyl bladder variants ACS-certified or WRAS-approved for potable water service; polyurethane bladders for general service
• Carbon steel or stainless steel pressure shell; design per client specification and site hydraulic analysis
• Capacities from 100 litres to 120,000 litres, sized per transient hydraulic analysis
• Manufactured to PED 97/23/EC and internationally recognised pressure vessel codes including EN 13445 and ASME VIII-Div.1

Notes

• Specify required capacity in litres when enquiring (range: 100–120,000 L). Vessel is sized per site hydraulic transient analysis.

Description

Hydropneumatic surge vessel with internal bladder separating the pressurised air cushion from the pipeline fluid. Absorbs positive and negative pressure transients caused by pump trip or rapid valve closure. Bladder prevents air absorption, maintaining cushion volume without compressor intervention. Butyl bladder variants ACS-certified or WRAS-approved for potable water. Capacities from 100 to 120,000 litres, sized per hydraulic transient analysis.