A-T Controls Triac TA-Luft Low Emissions Certification was received in March of 2007 for a broad range of valves with a patented “Pyramidal Stem Seal” system. TU-Luft testing requires less than 1 ppm leakage through the valve stem.
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The TA-Luft Low Emissions standard that was established by the German TUV agency (Technischer Uberwachungs-Verein). Considered the world’s most stringent standard on valve emissions, TU-Luft testing requires less than 1 ppm leakage through the valve stem. Fugitive valve emissions are a major environmental and economic issue for process industries. TRIAC valves can reduce fugitive emissions and lost product by 99% or more compared to legacy control valves. A-T is excited to offer such a range of valve choices to help industries in their drives to reduce emissions.
A-T Controls Triac TA-Luft certified valves employ a unique live-loaded pyramidal stem packing system. This features a patented 45° pyramidal stem and stem seal with Belleville washers and PTFE chevron style stem packing, protecting against stem leaks experienced with ordinary ball valves.
A-T Controls Triac valves also feature a patented automation pad that allows direct mounting of ISO 5211-compliant actuators to eliminate the cost and fabrication of special couplings or brackets.
The following models carry the TA-Luft Low Emissions certification.
- A-T Controls Triac 22 Series Stainless Steel Ball Valves
- A-T Controls Triac 33 43 53 Series Multi-Port Ball Valves
- A-T Controls Triac 88 Series Ball Valves
- A-T Controls Triac 90 93 Series Flanged Ball Valves
- A-T Controls Triac D9 Series Valves – Stainless Steel
- A-T Controls Triac DR Series Ball Valves
- A-T Controls Triac V Series V-Port Ball Valves
- A-T Controls Triac VS VV VM V-Port Ball Valves
