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SITE SERVICES

Let CSI Manage the Details—So You Can Focus on Production

With our unmatched expertise, fast response times, and proactive approach to risk management, CSI’s Site Services deliver peace of mind with every visit. Whether preparing for an audit, planning a facility shutdown, or simply needing to ensure that your gas delivery system is operating at peak performance, CSI is your trusted partner for long-term reliability and regulatory success.

CSI technician working on an on-site specialty gas delivery system.

Tailored Expertise for Your Facility

Whether you require discovery visits, system qualifications, or advanced retrofits, our skilled technicians deliver expert service customized to your operational demands.

Built Around Compliance & Safety

From semiconductor manufacturing to hazardous gas handling, safety is the core of everything we do. Each CSI site service project includes:

  • Permit-to-Work (PTW) and Job Safety Analyses (JSA)

  • Comprehensive site audits and risk assessments

  • Stakeholder-reviewed safety protocols and compliance checklists

  • Scorecard evaluations to ensure zero-tolerance standards are met

Full-Spectrum Facility Support—Tailored to Your Needs

CSI offers a wide range of site gas system services to meet the demands of both day-to-day operations and long-term infrastructure planning. We support:

  • Routine PMs for gas systems, abatement units, and delivery equipment

  • Gas cabinet upgrades and controller retrofits

  • Cylinder change-outs and pigtail replacements

  • Line purges, breaks, and analytical validations

  • Decommissioning and SCBA-required operations

  • Emergency Response Team (ERT) and Environmental Health & Safety (EHS) assistance

  • Shutdown planning, coordination, and requalification

  • Greenhouse gas reporting and Chemicals of Interest (COI) tracking

Expert On-Site Support for Critical Gas Systems and Facility Operations

When operational uptime, safety, and regulatory compliance are paramount, CSI’s Site Services team delivers comprehensive, responsive, and highly specialized support tailored to your facility’s unique gas system infrastructure. Whether you're running a semiconductor fab, biotech plant, or advanced R&D lab, we ensure your gas delivery systems, cabinets, panels, and auxiliary equipment continue to perform safely and efficiently—day after day.


Our on-site experts are trained in all aspects of ultra-high purity gas system maintenance, from routine PMs to full system retrofits. CSI’s field technicians bring decades of experience, strict adherence to safety standards, and a deep understanding of regulatory compliance to every job.

Leverage CSI’s modern reporting solutions to meet environmental, regulatory, and operational transparency goals:

  • Cylinder usage tracking

  • Greenhouse gas monitoring and reporting

  • COI compliance and documentation

  • SCBA-required activities

  • COI compliance

  • Gas system valves

  • Controllers

  • Instruments

We validate performance across all gas-related systems with comprehensive testing protocols for:

  • Gas system valves

  • Controllers and interlocks

  • Safety instrumentation

Whether replacing worn hardware or upgrading instrumentation, CSI offers targeted support for critical components, including:

  • Pigtail and tubing replacements

  • Instrument and gauge swaps

  • Cylinder Delivery Unit (CDU) drum replacements

  • Abatement canister changes and waste handling

Critical Systems ensures purity, continuity, and safety at the line level. Our line services include:

  • Controlled purges and venting

  • Line break and reconnection support

  • Qualification testing for new or reconfigured lines

  • Full analytics to validate system cleanliness and integrity

  • HPM gas panel inspections

  • Panel/controller swap-outs

  • Retrofits

Routine PM is one of the most effective ways to protect your investment and extend system life. Our preventative maintenance services include:

  • Gas system and gas cabinet inspections

  • Panel and controller swap-outs and retrofits

  • Valve leak checks and function testing

  • Cabinet enclosure evaluations

  • Exhaust and abatement component replacements

Preventive Maintenance: Proactive, Not Reactive

Line Services and System Validations

Equipment-Specific Services

Facility-Wide Function Testing

Decommissioning & Safety

Advanced Tracking & Reporting Tools

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