About Preferred Engineering
Preferred Engineering is dedicated to the design and manufacture of specially engineered mechanical tools and equipment to support nuclear power plant refueling and maintenance activities. Our attention has focused on providing our customers with improved tools and equipment. Each product is designed to meet your needs. Our product design goals include enhancing personnel safety, reducing exposure and reducing critical path time. Our extensive design experience has been instrumental in producing innovative solutions to eliminate or reduce specific plant problems.
We have been in business for over nineteen years and have solved hundreds of utility problems. Our success comes from innovative engineering and its application to the solutions of complex problems. We also engineer remotely operated heavy lifting devices as well as special purpose cleaning devices such as the RPV Flange and O-Ring Groove Cleaners.
Products include: Main Steam Line Plugs for MSIV testing, Stud hole plugs, remotely actuated lifting devices, O-Ring cleaners, Quik-Lok® fastening and seal systems, Refueling Tools, and many others.
Product Development
Effective solutions to nuclear plant problems demand creative design tempered by the realities of the nuclear workplace. We work closely with our customer's engineering staff to develop and manufacture products uniquely suited to solve specific problems. The solutions we design require that you, our customer, be able to easily install the product while retaining the complete assurance that the product will function as intended on the first use as well as every subsequent use.
Quality Assurance and Standards
The unique types of problems that we solve for our customers require the implementation of an effective quality assurance program. Preferred Engineering's record of strict adherence to established quality standards and industry practices have made us leaders in our field. Preferred Engineering maintains a full Nuclear Quality Assurance program and meets all the criteria of 10CFR50 Appendix B.
Product Testing
Starting during product development, our testing programs are intended to validate design concepts and material selection as well as demonstrate the performance of the finished product.
Products
PLUGS
- Main Steam Line Plugs (Wet-Lift or Dry)
- Stud Hole Plugs
- Recirc Nozzle Plugs
- Hot/Cold Leg Plugs
- RPV Drain Plugs
Torus Drain Plugs - Jet Pump Plugs
- Storage Tank Nozzle Plugs
- CRD Return Nozzle Plug
- Iso Condenser Plugs
AUTOMATED LIFTING
- Automated Shield Block Strongback 20-65T
- Automated Hook Box 125T
- Fuel Transfer Cattle Chute Strongback
SPECIAL SEALING
- RPV Internals Storage Pool Gate
- Temporary RPV Cover/Seal (25 FT Head)
- RPV Isolation Cover (Low Head)
- Ex Core & Blow Out Covers
- Sand Box Covers with "Quik-Bolts"
- NI Box Covers with "Quik-Bolts"
- RPV Cavity Seal Systems with "Quik-Bolts"
- Fuel Transfer Tube Closure Systems
- Inspection Hatch Covers
- ERCD Covers with "Quik-Bolts"
- Spent Fuel Strainer Cover/Seal
SHIELDING
- Water Wall
- Modular Panels (High-Density Concrete)
- Special Purpose Lead/Concrete Block
- Filter Transfer Cart
MAINTENANCE APPARATUS
- RPV O-Ring Groove Cleaner
- RPV Flange Cleaner
- RPV Head Stud Hole Cleaner
- Ice Basket Tab Grinders
- Carousel Automation System
- Equipment & Storage Containers
- Steam Generator Manway Handlin System
- Specialty Camera and Light Brackets
- Shroud Bolt Removal Tool
O-RING RETAINING CLIP SYSTEM
- O-Ring Retaining "Quik-Clips"
- O-Ring "Quik-Clip" Installation Tools
- O-Ring Storage Box (4 or 6 O-Rings)
REFUELING APPARATUS
- Fuel support piece /CRD Uncouple/Removal Tool
- Auxiliary Bridge Design
- Fuel Transfer Upgrades
- RPV Work Platforms
- Shroud Nut Removal Tool
- RPV Nut Runner
- Roto-Lock Insert/Removal Apparatus
- High Capacity Rigid Pole System
TRAINING APPARATUS
- Shroud Bolt Mockup
- Reactor Coolant Pump Coupling/Seal Mockup
ENGINEERED APPARATUS
- Block Ice Handling
- CO2 Blasting
- Remote Grinding Machines