We prepare liquid cooling and chilled-water systems for successful startup. Mechanical flushing. Chemical treatment. Stainless steel passivation. Execution-focused. Commissioning-ready.
Mechanical Flushing
Chemical Treatment
Passivation
Executable scopes that deliver commissioning-ready systems. Each service solves a specific problem at a specific point in the project lifecycle.
High-velocity hydronic cleaning that removes construction debris, welding slag, pipe ThreadShield, and organic matter before commissioning.
When
Post-installation, pre-commissioning
Outcome
System achieves design-intent cleanliness; ready for instrumentation and startup
Engineered chemical protocols that dissolve pipe scale, remove residual oils, and prepare system surfaces for passivation and long-term operation.
When
After mechanical flush, before passivation
Outcome
System surfaces chemically clean; optimized for passivation adhesion
Citric or nitric acid passivation that forms a protective chromium oxide layer on stainless hydronic piping, preventing corrosion and brown water events.
When
After chemical cleaning, before final fill
Outcome
Corrosion-resistant system; prevents iron contamination in operational loops
Specialized cleaning for high-density liquid cooling loops serving GPUs and AI hardware. Ultra-clean requirements for direct-to-chip and CDU systems.
When
Post-installation, pre-commissioning of AI/hyperscale infrastructure
Outcome
Sub-10-micron cleanliness; zero contamination tolerance for sensitive hardware
System preparation activities that ensure smooth commissioning handoff: final flush, temporary strainer installation, and startup checklist completion.
When
Immediately before commissioning authority arrival
Outcome
Commissioning-ready system;CxA can proceed without remediation delays
Emergency response for brown water events, biofilm contamination, or commissioning failures caused by system cleanliness issues.
When
Post-failure; emergency mobilization
Outcome
System restored to clean condition; root cause addressed
A practical execution framework developed through hundreds of mission-critical projects. Not academic—field-proven.
Review system history, installation methods, and materials to identify contamination sources before flushing begins.
High-velocity circulation with progressive filtration. Target: 6+ ft/sec velocity; remove particulates to system spec.
Engineered chemistry to dissolve scale, remove oils, and prep surfaces for passivation adhesion.
Apply citric or nitric acid per SSPC-SP15 or ASTM A380. Form chromium oxide layer; prevent future corrosion.
Turbidity testing, filter analysis, visual inspection. Document results; certify system readiness.
Final handoff checklist complete. Temporary equipment removed. System ready for commissioning authority.
Skipping steps creates hidden failures. Passivation without chemical prep fails. Flushing without verification hands off dirty systems. Our framework ensures each phase completes before the next begins—no shortcuts, no gaps.
Capabilities that enable successful flushing and passivation outcomes. These support—not replace—our core cleanliness services.
Skid-mounted multi-stage filtration: 200 micron → 25 micron progression. Real-time filter monitoring and automatic staged upgrades.
High-capacity centrifugal pumps sized to achieve flushing velocity requirements. Bypass configurations for complex loop architectures.
Mobile chiller trailers (to 660 tons), CRAH integration, and phased cooling for accelerated schedules or emergency response.
Licensed water transport and regulated disposal. We handle the logistics so you don't deal with compliance issues.
Nitrogen purge services for preserving passivated systems during storage periods. Prevents atmospheric contamination before final fill.
Minor field modifications required for cleaning access: temporary spool pieces, bleed valves, filter housing adaptations.
These capabilities exist to support our core services. Primary value comes from cleanliness execution, not equipment rental.
Javelin participates at critical phases. Early engagement reduces cost. Late engagement manages consequences.
Feasibility studies, cooling strategy validation, flushing scope definition.
Advisory Services
Constructability input, flushing access points, equipment sizing.
Design Support
Pipe fabrication, field installation support, pressure testing.
Fabrication Services
Mechanical flush, chemical treatment, passivation, cleanliness verification.
Core Execution
Commissioning support, performance testing, operational recovery.
Handoff Support
Field observations and technical guidance from executing hundreds of cleanliness scopes.
Three primary failure modes: iron oxide contamination from unpassivated stainless, organic growth from inadequate biocide treatment, and particulates that clog server inlet strainers. Each is preventable with proper execution.
Learn about brown water preventionRaw stainless steel forms no protective chromium oxide layer in atmospheric conditions. Without passivation, the iron in the alloy oxidizes first—releasing brown water into your system. Passivation forces the chromium to the surface, creating a barrier.
Learn about pre-passivationFlushing removes particulates (welding slag, ThreadShield, pipe cuttings). Chemical cleaning removes soluble contamination (scale, flux residue, machining oils). You need both. Flushing alone leaves chemical films; chemicals alone won't move solid debris.
Learn about loop flushingGPU and AI hardware demands sub-10-micron cleanliness with zero tolerance for ionic contamination. Standard commercial flushing specs don't apply. These loops require dedicated equipment, controlled environments, and certification-grade verification.
Learn about D2C installationFull-system hydronic flushing engineered for mission-critical facilities. We remove construction debris, welding slag, and particulates to achieve design-intent system cleanliness before startup.
Skid-mounted setups with multi-stage filtration. Designed for velocity and flow rates that meet flushing specifications.
Progressive filtration down to system-specific micron requirements. Real-time monitoring and filter tracking.
Turbidity testing, filter analysis, and comprehensive QA logs that document system readiness.
Engineered chemical treatment for chilled water and condenser systems. Safe, compliant, and effective—designed to maximize system protection and long-term performance.
Pre-operational cleaning to remove oils, flux, and manufacturing residues before final system startup.
Industry-standard passivation protocols for chilled water loops, condenser systems, and closed-loop applications.
Proper dosing, mixing, and quality control. We handle thermal fluids with precision and regulatory compliance.
Documented procedures for chemical mixing, application, neutralization, and disposal in compliance with environmental standards.
Comprehensive hydronic commissioning that verifies performance, validates design intent, and delivers owner-ready documentation. We coordinate with GCs, controls teams, and commissioning authorities to ensure flawless system handoff.
Flow rates, pressure drops, and system balance checked against design specifications.
Coordination with TAB contractors and commissioning engineers to achieve proper distribution across all zones.
Verification of installed instrumentation, differential pressure transmitters, and flow meters.
Direct collaboration with general contractors, MEP teams, and controls integrators during critical startup phases.
Complete commissioning packets with test results, QA logs, and as-built records ready for owner handoff.
Specialized support services that ensure precision execution and mission-critical readiness
High-velocity hydronic system flushing for data centers. Remove construction debris, pipe ThreadShield, and organic matter before commissioning to prevent catastrophic equipment failures.
Proactive strategies to prevent brown water events in data center hydronic systems. Address iron oxide, biofilms, and construction contaminants before they damage sensitive equipment.
Shop-based passivation of stainless steel piping before installation. Controlled environment, certified processes, and documentation for data center cooling systems.
Custom-engineered flushing plans designed for your system architecture. We provide hydraulic analysis, temporary equipment sizing, and detailed execution plans.
Temporary cooling systems for early mechanical startup, phased turnover, and commissioning. Mobile chiller trailers up to 660 tons each for large-scale data center projects.
Field-ready temporary equipment staged and operated to achieve flushing velocities and system cleanliness targets. Proven setups for complex hydronic systems.
Execution-minded technical advisory for data center owners, developers, and builders. Preconstruction planning, design reviews, and commissioning support for hyperscale and liquid-cooled facilities.
Transparent, detailed documentation packages that give owners, engineers, and GCs full visibility into system readiness and performance. Every phase tracked, every result verified.
Based in Tulsa, Oklahoma and serving data centers nationwide. We mobilize crews and equipment for flushing, passivation, and pre-commissioning scopes. Tell us what you're solving for—we'll build the execution plan.