Hydraulic Sizing
Calculate total filtration area, required area per duty vessel, and theoretical vessel diameter.
Engineering Calculation Module
Pressure Sand Filter
Design Calculation
Design and evaluate a vertical pressure sand filter using a structured Excel workflow for hydraulic sizing, duty and standby vessel configuration, automatic manufacturer vessel selection, media sizing, expanded-bed verification, backwash requirements, and design compliance.
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Structured Excel WorkflowHydraulic sizing through vessel selection and backwash review.
AUTO
Automatic Vessel SelectionScreen catalog vessels against area and process-height requirements.
BW
Backwash CalculationFlow, duration, cycle volume, and storage requirement.
✓
Design CompliancePASS / REVIEW checks for key hydraulic and vessel requirements.
What This Module Helps You Design
Use one calculation workflow to size a pressure sand filter system, select a preliminary standard vessel, define filter media, estimate backwash demand, and review the selected configuration before vendor confirmation.
Vessel Screening
Automatically identify the first eligible catalog vessel from the integrated manufacturer database.
Media Requirement
Calculate sand and support-gravel volumes using the selected vessel area and media depths.
Expanded-Bed Check
Evaluate expanded sand depth, total expanded-media volume, and vessel fill ratio during backwash.
Backwash Requirement
Determine backwash flow per vessel, water per cycle, and recommended storage including operating allowance.
Compliance Review
Review vessel availability, filtration loading, process-height margin, expanded-media fill, and overall status.
Calculation Coverage
The workbook connects the project design flow to a preliminary pressure-vessel configuration and its key media and backwash requirements.
Design Basis
Design flow, vessel-selection mode, standby philosophy, filtration rate, media depths, and backwash inputs.
Filtration Area
Total required area, duty-vessel quantity, flow per vessel, and area required per vessel.
Vessel Diameter
Theoretical vessel diameter derived from the required hydraulic area.
Vessel Database
Integrated vessel database for preliminary catalog model, diameter, nominal height, gross volume, and weight.
Actual Filtration Rate
Recalculate actual area and operating filtration rate using the selected vessel dimensions.
Process Height
Check vessel height against underdrain clearance, support gravel, expanded sand bed, and upper clear space.
Media Volume
Sand volume, support-gravel volume, expanded sand depth, and expanded total media volume.
Backwash Sizing
Backwash flow, cycle volume, duration, and recommended storage requirement.
Design Status
Automatic PASS / REVIEW logic for the selected preliminary configuration.
Engineering Workflow
A clear sequence from design basis to a reviewable vessel configuration.
1
Enter Design Basis
Set flow, filtration rate, media, and backwash inputs.
2
Size Filtration Area
Calculate total area and duty-vessel requirement.
3
Select Vessel
Screen the integrated catalog for a suitable preliminary model.
4
Size Media
Calculate sand, gravel, and expanded-bed requirements.
5
Calculate Backwash
Determine backwash flow, water per cycle, and storage.
6
Review Design
Check the selected vessel and overall PASS / REVIEW status.
Workbook Preview
Actual screenshots from the Pressure Sand Filter Design workbook. The public preview shows the workbook structure and output format without exposing the complete internal methodology.
Designed for Engineering Review
The workbook keeps the hydraulic sizing, catalog selection, media requirement, backwash demand, and design status connected to the same design basis.
| Design Area | Key Review Output | Engineering Purpose |
|---|---|---|
| Hydraulic sizing | Total filtration area and duty vessels | Establish filter capacity and parallel configuration |
| Vessel selection | Catalog model, diameter, nominal height | Select a preliminary standard vessel |
| Operating rate | Actual filtration rate | Confirm selected vessel area is hydraulically acceptable |
| Media design | Sand, gravel, expanded media | Establish filter-media and backwash-volume requirements |
| Backwash | Flow, cycle water, storage | Define the preliminary backwash-water requirement |
No Black Box
Know how the selected vessel was reached.
The workbook keeps the hydraulic basis, required filtration area, catalog screening, and selected-vessel performance connected in one traceable design path.
Example calculation flow
Pressure Sand Filter
1
Design Basis
Design flow, Q60 m³/h
Design filtration rate, vf15 m/h
Start from the project flow and adopted filtration loading.
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2
Hydraulic Sizing
AT = Q / vf
4.00 m²
Required total filtration area before catalog-vessel screening.
→
3
Catalog Vessel Selection
Duty vessels2 units
Selected diameter1.620 m
Actual filtration rate14.56 m/h
Eligible vessel is screened against area, process height, and programmed design checks.
Built-in Design Checks
The workbook automatically flags whether the preliminary selected configuration satisfies the programmed review conditions.
| Check Item | Workbook Review | Why It Matters | Status Output |
|---|---|---|---|
| Catalog vessel match | Confirms an eligible catalog vessel is found | Avoids forcing a configuration when no standard match exists | PASS / REVIEW |
| Filtration rate | Compares actual loading against the selected design basis | Confirms hydraulic surface loading remains acceptable | PASS / REVIEW |
| Nominal vessel height | Compares vessel height with required process height | Provides preliminary vertical-space screening | PASS / REVIEW |
| Expanded-media fill | Reviews expanded media against gross vessel volume | Checks preliminary free volume during backwash | PASS / REVIEW |
| Overall design status | Summarizes programmed checks | Highlights whether the preliminary configuration requires revision | PASS / REVIEW |
What's Included
A standardized AIDIA workbook structure for calculation, documentation, and engineering review.
READ ME
Purpose, instructions, calculation basis, responsibility notes, and support information.
Cover
Project information and revision fields for engineering documentation.
Calculation
Hydraulic sizing, vessel screening, media sizing, backwash calculation, and compliance review.
Dashboard
General arrangement, design summary, key parameters, and overall design status.
Abbreviations
Engineering symbols, terminology, and units used throughout the module.
Vessel Database
Integrated manufacturer vessel data used for preliminary automatic screening.
AIDIA Helps With
- Preliminary pressure sand filter sizing
- Duty and standby vessel configuration
- Automatic catalog vessel screening
- Filter-media and expanded-bed review
- Backwash-water and storage estimation
AIDIA Does Not Replace
- Project-specific engineering judgement
- Manufacturer vessel confirmation
- Internal distributor / collector design
- Pressure-rating and mechanical verification
- Professional engineering approval
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Start with a structured pressure sand filter calculation.
Bring hydraulic sizing, vessel selection, media requirements, backwash demand, and design review into one structured AIDIA Excel workflow.