Process flush
Routes suitable process fluid from pump discharge to the seal chamber through a controlled path.
Single-seal support
Engineering detail
A controlled environment for the mechanical seal.
API piping-plan packages define how flush, buffer or barrier fluid is circulated, conditioned and monitored around a mechanical seal. PIIPL engineers and fabricates the auxiliary package to the selected piping-plan concept, pump and seal data, process conditions, available utilities and project instrumentation philosophy.
Plan selection remains the responsibility of the coordinated pump, seal and process engineering team. PIIPL develops the vessel, piping, valves, instruments, supports and documentation within the agreed package scope.
Primary inputSeal arrangement
Operating basisPressure & thermal duty
ExecutionPackage integration
Common system families
Configured to the selected seal plan.
Examples below describe common functions only. The correct plan and component arrangement must be confirmed for each service.
Cooled circulation
Recirculates seal-chamber fluid through a cooler to manage the local seal environment.
Thermal controlBuffer system
Provides an unpressurised buffer-fluid reservoir for an appropriate dual unpressurised seal arrangement.
Dual-seal supportBarrier system
Provides a pressurised barrier-fluid system for a suitable dual pressurised seal arrangement.
Pressurised supportPackage engineering
Inputs coordinated before fabrication.
A reliable support package depends on the interfaces between process, pump, mechanical seal, utilities and plant controls.
Pump & seal data
Seal arrangement, chamber pressure, circulation method and connection requirements.
Fluid selection
Process, buffer or barrier-fluid compatibility and cleanliness requirements.
Thermal management
Heat load, cooling-water data and exchanger duty where the selected plan requires it.
Instrumentation
Pressure, level, temperature and flow indication or switching as defined by the project.
Reservoir / vesselCapacity and pressure regime selected by plan
Piping & valvesRouting, isolation and flow-control components
Cooling componentsCoil or exchanger where duty requires
Mounting frameCompact arrangement with service access
InspectionAgreed testing and documentation package