What engineering standard and governing formula does the Media / Multi-Grade Filter (MGF) Sizing Engine use?

The Media / Multi-Grade Filter (MGF) Sizing Engine utilizes verified formulations conforming to AWWA B100 / ASME Pressure Vessel Code Section VIII. It computes results using peer-reviewed equations with transparent mathematical step-by-step substitution for verification.

Can I export official calculation sheets for PE (Professional Engineer) submittals?

Yes. Click the 'Generate PE Submittal PDF' button inside the calculator to export a clean, timestamped engineering calculation sheet with inputs, intermediate variables, unit conversions, and signature review blocks.

Does the Media / Multi-Grade Filter (MGF) Sizing Engine support dual Imperial and Metric units?

Yes, you can toggle instantaneously between US Customary (Imperial) and SI Metric units with zero calculation drift or rounding artifacts.

What input variables are required to run the Media / Multi-Grade Filter (MGF) Sizing Engine?

The required design inputs are: Design Filtration Flow Rate (Q_filt), Design Filtration Velocity (v_f), Backwash Water Velocity (v_bw), Air Scouring Velocity (v_air), Total Media Bed Depth (H_bed).

AWWA B100 / ASME Pressure Vessel Code Section VIII

Media / Multi-Grade Filter (MGF) Sizing Engine

Filtration velocity, bed hydraulics, backwash flow, air scour & standard header pipe sizing

Engineering Process Reference: Media / Multi-Grade Filter (MGF) Sizing Engine Calculator governing plant layout conforming to AWWA B100 / ASME Pressure Vessel Code Section VIII.

1. Engineering Principles & Mathematical Formulation

Sizes pressure media / multi-grade filters (anthracite + sand + garnet), calculates backwash/air scour requirements, and determines recommended standard DN/NPS header pipe sizes.

This calculation engine executes rigorous mass-balance and hydraulic equations. Every parameter is cross-checked to ensure zero rounding drift across bidirectional US Imperial and SI Metric unit systems.

2. Governing Standards & Authoritative Citations

"Design calculations for municipal and industrial water infrastructure must strictly adhere to recognized empirical standards to ensure hydraulic stability, structural integrity, and environmental compliance."
— AWWA B100 / ASME Pressure Vessel Code Section VIII, American Water Works Association (AWWA) & U.S. Environmental Protection Agency (EPA Manual 832-B-99-002)

Primary benchmark citations include Crane Technical Paper No. 410, ASME Section VIII, and Metcalf & Eddy Wastewater Engineering.

3. Required Input Parameters & Variables

Symbol: Q_filt

Design Filtration Flow Rate

Default: 60 (GPM)

Symbol: v_f

Design Filtration Velocity

Default: 12 (gpm/ft²)

Symbol: v_bw

Backwash Water Velocity

Default: 35 (gpm/ft²)

Symbol: v_air

Air Scouring Velocity

Default: 60 (scfm/ft²)

Symbol: H_bed

Total Media Bed Depth

Default: 1.2 (ft)

4. Professional Engineer (PE) Submittal Workflow

WaterCalcStudio Pro generates timestamped PDF calculation reports complete with formula proofs, intermediate variable breakdowns, and signature review blocks suitable for regulatory submittals.