FCD Technical Information for Engineers, Specifiers & Facilities Professionals
Document Attribution & Disclosure
The technical documents on this page were authored and published by the device manufacturer. Water Flow Innovations LLC distributes the Flow Conditioning Device as an authorized reseller and makes these documents available as a reference resource for engineers, specifiers, and facilities professionals evaluating the FCD. All studies, white papers, and technical specifications reflect the manufacturer’s research and engineering documentation.
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For MEP Engineers & Specifiers
The Hydraulic Conditioning White Paper, Technical Engineering Spec Sheet, and Installation & Plumbing Code Reference are the primary documents for CSI Division 22 specification work. Use the M&V White Paper to validate savings calculations for ROI and cost reporting.
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For Plant Engineers & Facilities Directors
The Water Meter Accuracy White Paper and Technical Validation of Entrained Air document explain why water meters over-register and how the FCD corrects it. Start here if your facility manager is asking why the bill is high. For a plain-language walk-through, see How Each Part of Your Water Service Line Affects Meter Over-Registration.
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For Procurement & Operations
The FCD Overview Sheet provides a concise summary of the device, its certifications (IAPMO, NSF/ANSI/CAN 61), and specifications for procurement review. The Savings Mechanism document supports capital project justification and ROI documentation.
Technical Document Library
Nine manufacturer-authored technical documents covering engineering specifications, hydraulic science, measurement standards, installation requirements, and water meter accuracy. All documents are available as PDF downloads.
Flow Conditioning in Commercial Water Systems
The primary technical white paper on hydraulic conditioning science — how turbulence, gas and vapor, and pressure transients cause water meters to over-register, and how flow conditioning corrects each mechanism.
FCD Technical Engineering Specification Sheet
The formal engineering specification for the Flow Conditioning Device — materials, pressure ratings, flow parameters, connection configurations, and compliance certifications. Required for inclusion in construction documents and RFP specifications.
IAPMO, NSF/ANSI/CAN 61, KIWA certified
Installation & Plumbing Code Reference
Installation requirements, plumbing code compliance guidance, and placement specifications for the FCD at municipal supply connections. Covers IPC, UPC, and local amendment considerations for licensed plumbing contractors and MEP engineers specifying the device.
Placement guidance: immediately downstream of the meter, ahead of the PRV
The Standard of Proof: Measurement & Verification in Commercial Water Conservation
A rigorous M&V framework for documenting, validating, and reporting FCD bill savings, using baseline and pre/post measurement protocols aligned with IPMVP.
Supports cost-savings documentation for ROI, audit, and sustainability-consultant review
How the FCD Delivers Water & Sewer Bill Savings
A clear, accessible explanation of the FCD savings mechanism — written for facilities managers, operations directors, and procurement teams who need to understand the science without engineering depth. Supports internal justification and capital approval processes.
Technical Validation: Entrained Air and Gas in Fluid Metering Systems
A technical validation study documenting how gas and vapor in the water passing through a meter cause positive metering error — a primary mechanism behind commercial meter over-registration.
Water Meter Accuracy Acceptance Windows and Municipal Billing
Documents the AWWA and NIST meter accuracy standards that allow municipalities to bill customers based on meters that are operating within “acceptable” error ranges — and how over-registration within those acceptance windows still shows up on the bill, at the customer’s expense.
FCD Overview — One-Page Reference
A concise one-page summary of the Flow Conditioning Device — certifications, specifications, key benefits, and contact information. Designed for distribution to facility managers, property owners, and operations teams as a quick-reference document.
Intrinsic Fail-Open Architecture
A formal engineering paper on the FCD’s failure behavior — architecture, FMEA, fault tree analysis, risk assessment, and a sixteen-year field record. Written for consulting engineers, facility engineers, EPC reviewers, insurers, and procurement teams evaluating whether the FCD introduces any supply-interruption risk.
Need a Sizing Confirmation Before Specifying?
The FCD requires sizing confirmation based on five parameters — pipe size, meter size, PRV configuration, backflow preventer type, and static supply pressure. Submit your project parameters and WFI will confirm the correct model within one business day.
Who Uses These Documents
The FCD technical library serves a range of engineering and facilities professionals at different stages of the evaluation and specification process.
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MEP Engineers
Spec language, engineering validation, and Division 22 code compliance for new construction and retrofit projects.
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Architects & Designers
Reference documentation for LEED and green building project teams.
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Plant & Facilities Engineers
Technical validation of the savings mechanism and metering accuracy documentation for industrial facilities.
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Property & Operations Managers
M&V documentation and savings mechanism guides for capital project justification and ROI reporting.
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Plumbing Contractors
Installation requirements, code references, and placement specifications for licensed commercial installation.
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Procurement & Finance
Certification documentation, spec sheets, and savings validation for vendor qualification and budget approval.