Zachry Nuclear's involvement with mechanical systems design and engineering covers a broad spectrum, derived from our continued support of the U.S. nuclear power plant fleet. We are an experienced and trusted source for the following engineering services:

• Feasibility and conceptual design studies
• In-depth analytical evaluations
• Fully developed and detailed Design Change Packages
• Failure Modes and Effects Analysis
• Design Basis and Licensing Basis Document Reviews
• 10CFR 50.59 Screens and Evaluations
• Procurement and implementation support
• On-site technical support for installation and testing activities
• Plant outage support

Members of our staff are well acquainted with the requirements for the design, maintenance, testing, and operation of NSSS and BOP systems (i.e., main and auxiliary steam, condensate and feedwater, circulating and cooling water, service and instrument air, HVAC and fire suppression systems) for BWR and PWR nuclear units. This experience includes a working familiarity with applicable industry codes and standards such as ASME, ANSI, and NRC Regulations.

Zachry Nuclear has the capacity and expertise to handle a wide range of power plant mechanical system applications as indicated by the following representative projects:

• Instrument Air System Upgrades
• HVAC System Modifications
• Control Valve Replacements
• Charging System Upgrades
• Stretch/Extended Power Uprate
• New Design for Balance of Plant Systems
• Equipment Specifications
• Water Treatment System Installations and Upgrades
• Emergency Core Cooling System Modifications
• Main Turbine Replacement and Turbine Support System Modifications
• Feedwater Heater Replacement
• Generic Letter 2008-01/Gas Intrusion Solutions

While working closely with your plant engineering staff, Zachry Nuclear provides solutions from initial scoping through installation, testing, and start-up.