Engineering Calculators
Complete chemical injection package calculations with selectable input and output units, plus a structured end-to-end sizing workflow.
Clickable package workflow
Follow the sequence from process basis through dosing-pump selection, tank sizing, hydraulics, testing and package closeout. Each calculation button opens the existing JavaScript calculator in the correct subsection.
Engineering basis
Apply the Purchase Order, Material Requisition, approved datasheets, project specifications, client/company standards, applicable legislation and approved deviations before vendor documents. Contractual conflicts require formal clarification rather than an assumed technical resolution.
Confirm the project-selected editions of API 675 or other specified metering-pump standard, applicable ASME/API piping and relief-device requirements, IEC electrical and hazardous-area requirements, and vendor performance limits. Vendor NPSHR/NPIPA, turndown, pulsation, accuracy and repeatability data govern final selection.
Tank material, pressure/vacuum rating, venting, overflow, bunding, level instruments, agitator loads, corrosion allowance and chemical compatibility must follow the approved project specification and the applicable tank/material standard. Select UL 142, API 650, ASME VIII-1, ASTM/ASME RTP-1, EN 13121 or another standard only when required by the project service and document hierarchy.
Final design requires approved minimum, normal and maximum process cases; chemical concentration, density, viscosity and vapor pressure; injection-point pressure; line losses; static head; autonomy; batch philosophy; utilities; relief return destination; drains, vents, flushing and hazardous-area classification.
The calculators provide preliminary hydraulic, inventory and sizing checks. They do not perform process simulation, pulsation analysis, detailed acceleration-head analysis, injection-quill stress analysis, PSV certification, tank structural design, nozzle-load analysis, SIL verification, hazardous-area certification or vendor guarantee validation.
Final sizing and compliance remain with the responsible package engineer, process engineer, mechanical/rotating engineer, instrumentation and safety disciplines, project/client authorities and the selected vendor as applicable.