HydroRing

PallaS

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About this app

HydroRing is a professional-grade engineering calculation and visual design tool built specifically for fire protection engineers, piping designers, and process safety professionals in the petrochemical and energy sectors.Eliminate complex spreadsheets and slow legacy software. HydroRing enables fast, accurate, and field-ready hydraulic sizing and 2D/3D visual layout modeling for tank surface fire water cooling rings—strictly complying with NFPA 15 (Water Spray Fixed Systems) and API RP 2001 (Fire Protection in Refineries).

🔑 Key Features
🧮 1. Verifiable Hydraulic Calculation EngineNFPA 15 & API RP 2001 Compliance: Calculate minimum design flow rates based on tank shell geometry, roof types, and commodity-specific cooling densities ($0.10 \text{ to } 0.25 \text{ gpm/ft}^2$ or $4.1 \text{ to } 10.2 \text{ L/min/m}^2$).Hazen-Williams Hydraulic Solver: Computes friction losses, total pressure drops, and velocity profiles across schedule-40 pipe headers.Dual Unit Support: Effortlessly toggle between Imperial (ft, gpm, psi, inches) and Metric (m, L/min, bar, mm) units.

📐 2. Interactive Visual Projection & Spatial Layout2D Plan & Elevation Engineering Views: Automatically generates scaled top-down (plan) section views and side elevation profiles with real-time nozzle spray vector intersections.Coverage & Overlap Verification: Dynamically checks spray cone coverage angles (90°, 110°, 120°) and nozzle spacing to prevent dry spots on tank walls.

⚠️ 3. Smart Engineering Guardrails & AlertsVelocity Limit Warnings: Instant alerts when flow velocity exceeds standard limits ($15 \text{ ft/s}$ / $4.5 \text{ m/s}$), complete with automated recommendations for the next compliant header pipe size up.Residual Pressure Checks: Flags potential pressure droops at the highest or most hydraulically remote spray ring.

📄 4. Audit-Ready PDF Calculation ReportsProfessional Documentation: Generate clean, comprehensive PDF calculation sheets directly from your tablet or mobile device.Formula Audit Logs: Includes step-by-step mathematical breakdowns and exact standard clause references for easy verification by client auditors and safety authorities.

🏭 Who is HydroRing For?Fire Protection & Safety Engineers designing fixed water spray systems.Piping & Mechanical Designers in EPC companies and engineering consultancies.Plant Maintenance & Safety Officers (SHE/HSE) verifying tank farm safety compliance.Auditors & Inspectors conducting field evaluations at refineries, chemical plants, and bulk liquid storage terminals.Design compliant fire cooling systems with confidence—anytime, anywhere.Download HydroRing today and bring industrial-grade hydraulic calculation power to your mobile device!

What’s new

Update 7 September 2026