Bladder Surge Vessel
Datasheet
Download datasheet (PDF)Specifications are indicative. Final specification is confirmed at quotation.
Specifications
Confirmed at quote- Size Range
- 100 L to 120000 L
- End connection
- Flanged
Standards
- Design & manufacture
- PED 97/23/EC, EN 13445, ASME VIII-Div.1, PD 5500, CODAP 2000, AD-MERKBLATTER
Configure your variant(manually adjust box on the right if you require a different spec)
- Size
- End connection
Materials
All available material options per part. Click a pill to set it in the configurator.
- Body
- Bladder
Dimensions per size(27 sizes)
| Size | Ø Ext (mm) | A (mm) | B (mm) | C (mm) | D (mm) | h (leg) (mm) | H (overall) (mm) | X (mm) | Y (mm) | DN (max) | Weight |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 100 L | 620 | 690 | 120 | 105 | 40 | 405 | 1100 | 695 | 727 | DN80 | 10bar 70 kg 16bar 78 kg unlabelled 90 kg |
| 150 L | 620 | 690 | 120 | 105 | 40 | 405 | 1250 | 695 | 727 | DN100 | 10bar 78 kg 16bar 88 kg unlabelled 100 kg |
| 200 L | 620 | 690 | 120 | 105 | 40 | 405 | 1420 | 695 | 727 | DN100 | 10bar 91 kg 16bar 100 kg unlabelled 115 kg |
| 300 L | 700 | 780 | 140 | 110 | 40 | 405 | 1600 | 780 | 727 | DN150 | 10bar 130 kg 16bar 145 kg unlabelled 165 kg |
| 500 L | 800 | 880 | 140 | 110 | 40 | 405 | 1850 | 880 | 815 | DN150 | 10bar 170 kg 16bar 186 kg unlabelled 215 kg |
| 750 L | 900 | 990 | 160 | 115 | 40 | 405 | 2100 | 985 | 901 | DN150 | 10bar 225 kg 16bar 247 kg unlabelled 285 kg |
| 1000 L | 950 | 1040 | 160 | 115 | 40 | 405 | 2300 | 1035 | 1007 | DN200 | 10bar 290 kg 16bar 326 kg unlabelled 375 kg |
| 1500 L | 1100 | 1210 | 200 | 125 | 40 | 405 | 2540 | 1195 | 1050 | DN200 | 10bar 370 kg 16bar 480 kg unlabelled 550 kg |
| 2000 L | 1100 | 1210 | 220 | 130 | 40 | 405 | 3080 | 1195 | 1217 | DN200 | 10bar 540 kg 16bar 595 kg unlabelled 680 kg |
| 3000 L | 1100 | - | - | - | - | 405 | 4070 | - | - | - | — |
| 4000 L | 1273 | - | - | - | - | 405 | 4075 | - | - | - | — |
| 5000 L | 1600 | - | - | - | - | 405 | 3480 | - | - | - | — |
| 6000 L | 1600 | - | - | - | - | 405 | 3980 | - | - | - | — |
| 7000 L | 1600 | - | - | - | - | 405 | 4480 | - | - | - | — |
| 8000 L | 1600 | - | - | - | - | 405 | 4980 | - | - | - | — |
| 9000 L | 1600 | - | - | - | - | 405 | 5480 | - | - | - | — |
| 10000 L | 1900 | - | - | - | - | 405 | 4580 | - | - | - | — |
| 12000 L | 1900 | - | - | - | - | 405 | 5300 | - | - | - | — |
| 15000 L | 1900 | - | - | - | - | 405 | 6000 | - | - | - | — |
| 18000 L | 2150 | - | - | - | - | 405 | 6070 | - | - | - | — |
| 20000 L | 2150 | - | - | - | - | 405 | 6625 | - | - | - | — |
| 25000 L | 2150 | - | - | - | - | 405 | 8000 | - | - | - | — |
| 30000 L | 2385 | - | - | - | - | - | 7870 | - | - | - | — |
| 35000 L | 2385 | - | - | - | - | - | 8990 | - | - | - | — |
| 40000 L | 2385 | - | - | - | - | - | 10110 | - | - | - | — |
| 45000 L | 2450 | - | - | - | - | - | 10720 | - | - | - | — |
| 50000 L | 2450 | - | - | - | - | - | 11780 | - | - | - | — |
* Weight column: 10 bar / 16 bar / a third rating the source labels identically to "10 bar" — see the certifications/dimensions note above.
* Capacities above 50,000 L (*) are vertical dimensions for the open/non-bladder configuration; this bladder product ships those capacities in horizontal format, not covered by the source document.
Technical drawings(5 pages)
Operating media
Typical applications
- Water transmission main surge protection
- Pump station water hammer control
- Municipal potable water supply networks
- Irrigation distribution systems
- Wastewater pumping mains
- Industrial pipeline pressure management
Coatings
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
- Bolted inspection manway for internal access
Description
A hydropneumatic surge vessel with an internal bladder that physically separates the pressurised air charge from the pipeline fluid. When pump trip or rapid valve closure causes a pressure transient, the compressed air cushion absorbs the energy and limits the magnitude of the positive and negative pressure wave. The bladder prevents air absorption into the water, maintaining the cushion volume indefinitely without compressor intervention. Available in potable water service with ACS-certified or WRAS-approved butyl bladders, or in general service with polyurethane bladders. Carbon steel or stainless steel shell, custom-sized per hydraulic transient analysis from 100 litres to 120,000 litres.
Selection notes
This surge vessel is a bladder type and hydropneumatic pattern, supplied for flanged installation.
Sizes run 100 L to 120000 L.
The body is offered in S275JR, S355JR, P265GH and P295GH, so the grade can be matched to the service rather than the other way round.
Stated service media include potable water, raw water, wastewater and irrigation water.
It is catalogued for Water & Wastewater and Industrial Process.
Built to PED 97/23/EC, EN 13445, ASME VIII-Div.1, PD 5500 and CODAP 2000.
Supplier remarks
- Manufacturer can produce standard tanks up to 120 m³ (120,000 L) and up to 150 bar depending on size and thickness; larger capacities can be examined on request.
- Water hammer analysis (used to size the vessel) requires: pipe profile, inner diameter, thickness and material, total flow, pump data (power, rotation speed) and water type. Where the pipe profile is unavailable, total length, start/end heights and the heights/distances of high and low points relative to the pumping station are needed instead; without the pipe profile the sizing is indicative only.
- Pre-load pressure is always lower than the pipe's operating pressure at the tank connection; manufacturer can supply the exact value at dimensioning, or it can be approximated as ((HMT + 1 bar) / 3) - 1 bar. Above 4 bar pre-load, phase it in through percentage steps to avoid bladder damage.
- Optional visual (sight-glass) or magnetic level indication equipment available for the vessel; specify if required.
- NDT capability: manufacturer states qualified personnel to conduct and interpret dye penetrant (PT) and radiographic (X-ray/RT) testing; no per-unit test standard or guarantee stated for this product.
- If fitted with a visual or magnetic level gauge: the gauge's upper and lower isolation valves must be closed during pump operation, or the bladder can be damaged (source: catalogue Attention note).
Used in
Related guides
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Open Surge Vessel
- Type
- Surge Vessel
- Size
- 100 L to 120000 L
- Pressure
- —
- Body
- S275JR / S355JR / P265GH / P295GH / P355GH / SA516-Gr.60 / SA516-Gr.70 / AISI 304 / AISI 304L / AISI 316 / AISI 316L
- Standards
- PED 97/23/EC, EN 13445
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