Upgrade to Ultra-Low Emissions with BTUU
For a durable packing solution that minimizes leakage, Ariel’s Ultra-Low Emissions Packing with BTUU is the answer. Featuring solid ring technology, this system offers extended low-leakage performance - helping contain gas more effectively than traditional segmented ring sets.
Backed by rigorous testing and proven in the field, this packing system is now standard on all new Ariel units and available as an upgrade - delivering reliable sealing and reduced emissions you can count on.
Ariel’s Ultra-Low Emissions Packing with BTUU has demonstrated significantly reduced leakage—typically between near-zero and 0.75 SCFM per throw in the first year when properly installed, maintained, and operated. Backed by both controlled testing and field data, this uncut ring technology outperforms conventional designs, especially under idle pressurized conditions.
Note: Actual leakage rates may vary based on application, operating environment, maintenance practices, lubricant quality, and component wear.
The BTUU ring set works by combining uncut and cut rings to create an exceedingly tight seal. The radial cut and tangent cut rings first break down the pressure, while the backup solid sealing ring and metallic ring provide structural support. In many applications, the solid, uncut rings compress under pressure, which creates additional sealing against the piston rod.
The Ariel Ultra Low Emissions Packing with BTUU features high-performance thermoplastic and metallic materials. These engineered materials are specifically chosen to operate reliably within their designed applications. The BTUU product family includes additional ring sets using solid ring technology called BTU, CU, and CUU, which employ different styles of cut rings and utilize the uncut final ring.
Ariel remains committed to advancing sealing technology through rigorous R&D, including performance testing under extreme conditions. Our mission is to exceed industry standards by designing packing systems that further reduce emissions while maximizing service life.
In one real-world example, a customer operating six JGT/4 compressors equipped with Ariel’s Ultra-Low Emissions Packing (BTUU) recorded impressive results. Over 28,000 hours of operation, the 24 packing cases averaged just 0.45 SCFM in leakage - demonstrating exceptional wear resistance and emission control.
