Support Systems
Serpentine Racks
NPO’s sturdy and adjustable serpentine rack is designed to provide virtually any shielding wall configuration, including low dose waiting areas, shadow shield walls, and shields for rad material transfers. The racks are adjustable from 6′ to 8′ (1.83m to 2.44 m) tall, and link to one another to form a solid, continuous shield wall. Each rack rests on heavy duty casters with foldable steel support legs and can hold 2880 lbs. (1306 kg) of shielding blankets. Serpentine Racks are seismically qualified.
Light Duty Rack
Light Duty aluminum racks are 45 lbs. /(20 kg), allowing workers to move the rack by hand for quick deployment and setup. Ideal for temporary shielding and keeping dose rates low in confined areas, these racks are 2′ wide and 6′ tall (0.61 m x 1.83 m), and, like the serpentine racks, can link to one another to form a solid, continuous shield wall. Each rack can hold 550 lbs. (249 kg) of shielding blankets.
Cargo Net Systems
Substitute scaffolding with lattice webbing and integral swivel hooks. These systems are custom-built to fit around pipes, tanks, and other applications. The swivel hooks are permanently integrated and positioned to align with the grommet spacing of the shielding blankets being used. Each system is made to order and can be manufactured in virtually any size. For larger lattice configurations, integrated steel supports may be required to ensure stability.
VersaClaw
No footprint available for a traditional rack system? No problem. The VersaClaw is designed for secure, versatile mounting. VersaClaw can be installed quickly on scaffold poles, H-Rack systems, and handrails using integrated heavy-duty scaffold clamps. These lightweight rack systems offer high-capacity support and are engineered to hold up to 270 lbs. per linear foot, ideal for heavy shielding blanket applications. Fixed 6-inch spacing ensures uniform load distribution and easy blanket hanging. Multiple length options are available in 2’, 3’, 4’, 5’, and 6’ configurations to suit varying shielding needs.
S-Hooks & Cinch Straps
NPO offers S-Hooks in a range of standard sizes in both carbon steel and stainless steel. Each S-Hook is rated to support up to 400 lbs., and can be equipped with optional spring clips to securely retain shielding blankets and prevent accidental dislodging. To further stabilize shielding configurations, cinch and ratchet straps are also available for securing shielding in place.
Temporary Radiation Shielding Applications
Millstone Hot Spot Shielding
In 2025, Millstone Power Station faced a persistent dose rate challenge at a 45° elbow hot spot, where dose rates exceeded 20 Rem/hr. The existing temporary solution shielding blankets...
Browns Ferry 360-Inspection Platform
Browns Ferry needed durable and effective floor shielding for the trough of their 360 cavity inspection platform. Like with most floor shielding applications, T-Flex® Bismuth was chosen because of...
Vogtle Reactor Head Shielding
In 2021, Vogtle reached out to NPO to help develop a new shielding package for around the reactor head. Their current system consisted of two rings: one under the...
Oconee Reactor Head T-Flex Shielding
Reactor head shielding is an essential part of every refuel outage. Oconee Nuclear Station sought to upgrade the shielding used at the bottom of the reactor head, opting to...
Pressurizer Spray Line Shielding
South Texas Project required new shielding for a section of the pressurizer spray line. Though the area looks small, the total shield weight was around 850 lb (386...
T-Flex Blankets
How many lead wool blankets does your site deploy every outage? Despite best efforts, do your lead blankets look sloppy while draped over pipes and hot spots or seem...
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