Jacketed, agitated, and glass-lined reactor vessels engineered for controlled chemical reaction under pressure and temperature — fabricated in stainless, nickel alloys, titanium, and specialty metals to ASME Section VIII.
A reactor vessel is a pressure vessel purpose-built to host a chemical or physical transformation — polymerization, esterification, hydrogenation, crystallization, or catalytic synthesis — under controlled temperature, pressure, and agitation. Unlike a simple storage tank, a reactor must manage heat generated or absorbed by the reaction itself, keep reactants uniformly mixed, and often withstand corrosive or high-purity process chemistry over thousands of batch or continuous cycles.
Fintelius engineers each reactor around its process duty first — reaction kinetics, heat-transfer load, mixing requirements, and material compatibility — then fabricates the jacket, agitation system, and internals to match, under full ASME Code Section VIII documentation.
Every reactor follows the same disciplined path through the shop, whatever its service or agitation system.
Reaction kinetics, exotherm/endotherm loading, batch cycle time, and material compatibility set the shell, jacket, and agitator design.
Plate is rolled and dished heads are formed to the design diameter and wall thickness, in carbon steel, stainless, or specialty alloy.
The temperature-control jacket is welded to the shell and the agitator drive, shaft, and impeller are fitted and aligned to the vessel.
Shell, jacket, and nozzle welds are radiographed and ultrasonically tested; heat treatment relieves residual stress in thick sections.
Vessel and jacket are separately hydrostatically tested, coated or passivated, and prepared for shipment.
The workhorse configuration for batch chemical processing — a jacketed shell paired with a mechanical agitator for uniform mixing and temperature control.
Glass-fused steel construction for highly corrosive or high-purity service where metal contact with the process fluid cannot be tolerated.
Cladded or solid alloy vessels — nickel, Inconel, Monel, titanium, Hastelloy — for high-pressure, high-temperature, or exotic-chemistry service.
The jacket type is selected against operating pressure, vessel size, and heat-transfer duty — not applied by default.
An outer shell welded around the vessel with internal baffles guiding flow — best for vessels under roughly 300 gallons and where internal pressure exceeds jacket pressure.
Spot-welded channels in light-gauge metal form a compact jacket rated to roughly 300 psig — well suited to space-constrained layouts and retrofits.
Split-pipe sections welded in a spiral or serpentine pattern around the shell, rated to roughly 750 psig — strong strength-to-weight ratio with independent flow zoning.
Proper agitation prevents hot spots and concentration gradients while promoting the heat and mass transfer the reaction depends on.
High-efficiency impellers for low-viscosity fluids, maximizing bulk flow and turnover for a given power input.
Close-clearance geometries for high-viscosity and polymerization service, scraping the wall to maintain heat transfer as viscosity climbs.
Multiple impeller stages on a single shaft to maintain mixing performance as batch viscosity changes through the reaction.
Single and double mechanical seals for standard duty, with magnetic drive options for zero-emission service on hazardous or high-purity fluids.
Wall baffles break vortex formation and redirect flow for effective top-to-bottom turnover in agitated vessels.
Computational flow modeling to verify mixing uniformity, heat transfer, and catalyst suspension before fabrication.
Corrosion resistance, sealing integrity, and code documentation are inseparable from reactor design.
Plate rolling and head dishing to the design diameter, dish radius, and wall thickness set by pressure and corrosion allowance.
Conventional, dimple, or half-pipe jacket welded and pressure-rated independently of the process-side vessel.
Motor, gearbox, shaft, and impeller fitted and aligned to the vessel centerline for vibration-free long-term operation.
Charge, discharge, vent, relief, and instrumentation nozzles with reinforcement pads; manways for internal access and cleaning.
Corrosion-resistant cladding or full alloy construction for aggressive process chemistry and high-purity requirements.
Stress-relief heat treatment for thick-walled shell and head sections per code requirements.
Weld integrity verification across shell, head, and nozzle welds before hydrostatic test.
Independent pressure testing of the process vessel and the jacket to their respective design pressures.
Surface passivation for stainless and alloy vessels, plus insulation and protective coating systems for the finished reactor.
High-viscosity, exothermic polymerization service using close-clearance anchor or helical-ribbon agitation.
Glass-lined and high-purity alloy reactors for batch pharmaceutical and fine-chemical manufacturing.
Custom-engineered reactors for esterification, catalytic, and specialty synthesis processes.
Pressure-rated reactors for gas-liquid hydrogenation reactions requiring robust mass-transfer performance.
Alloy and cladded reactors for corrosive or high-temperature petrochemical and refinery process streams.
Reaction vessels supporting chemical treatment and processing steps across production and gas processing facilities.