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).
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 installed Ariel Ultra-Low Emission Packing with BTUU in a set of (12) Ariel JGC/4 size compressors (2.5 inch diameter piston rod). The first four months of operation showed measured leakage of zero scfm to 0.2 scfm per packing case. The greatest majority of measurements were zero.
Dan Hannon, Compressor Emissions Reduction Technology, Ariel Corporation, published 2018