Ariel Ultra-Low Emissions Packing with BTUU
Environmental Benefits and Increased Revenue
Emissions result in potential lost gas delivery and revenue. The Ariel Ultra-Low Emissions Packing with BTUU has shown significant ROI, often delivering 99% or more of compressed gas. Ariel's products align to provide substantial customer benefits and send a clear message to stakeholders: "The best compressors now come standard with packing built for low emissions."
The bottom line: Ariel Ultra Low Emissions Packing with BTUU leaks less than 0.75 scfm when properly applied, maintained, installed and operated.
(See Ariel’s leakage statement below for more information).
Leakage Statement
Ariel Ultra Low Emissions Packing with BTUU Leakage Statement
Ariel has documented significant reduction in emissions when comparing uncut seal ring (BTUU/CUU) technology against traditional technologies, both in a controlled R&D environment, and in available field data. Ariel has measured BTUU leakage rates near zero to 0.75 SCFM per throw during the first year of operation. When applied properly, there are additional sealing performance improvements during idle pressurized conditions.
*Actual packing leakage rates depend on many variables, including but not limited to, equipment application, operating conditions, equipment maintenance, lubricants used, and piston rod and packing component wear.
For Additional Information, please contact our application engineers or see our Application Manual.
What is "BTUU" Technology?
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.
Butt (Radial) Cut Polymer Ring
Tangent Cut Polymer Ring
Uncut Polymer Sealing Ring
Uncut Metallic Back Up Ring
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.
Field Proven Success
Ariel continues to invest in research and development efforts to ensure the best possible seal, including modeling and testing packing in extreme operating conditions. We strive to do even better: developing designs and materials that further reduce emissions beyond industry standards. Ariel's ultimate goal is to deliver packing that minimizes emissions as close to zero as possible while extending the life of the packing.
For example, a customer with six JGT/4 compressors installed Ariel Ultra-Low Emission Packing with BTUU. After 28,000 operating hours, the leakage rates on the 24 packing cases showed an excellent reduction in the typical leakage and wear rates. The average leakage rate across the 24 packing cases was 0.45 scfm.
Dan Hannon, Compressor Emissions Reduction Technology, Ariel Corporation, published 2018