Civacon™ Debuts MaxAir™ II Emergency Valve

By OPW | Jan 22, 2013

MaxAir™ II valves are uniquely engineered to improve safety performance in petroleum-handling and various other fuel-transport applications

KANSAS CITY, MO – January 22, 2013 – Civacon™, the world leader in tank-truck components and systems and part of OPW Fluid Transfer Group, is proud to announce the release of its MaxAir™ II Emergency Valves. The new MaxAir II Emergency Valves have been designed for use in fuel-handling applications on tank trailers transporting products such as gasoline, diesel, biodiesel, ethanol and other typical petroleum products carried in aluminum DOT 406-style tankers. MaxAir II Emergency Valves have designed-in features such as a new externally ported air cylinder exhaust port, which uses three independent seals to completely isolate the air cylinder. The valves are outfitted with Viton® GFLT wetted seals and a standard Teflon®-encapsulated seat, which make them compatible with a wide array of products. The valve’s shearable air inlet fitting allows the valve to close, even if open, during an under-ride accident. A factory-installed fusible plug will melt at a temperature of 212ºF (100ºC), allowing the valve to dump air pressure in case of a fire. A stainless-steel jack screw is included to allow for manual operation in case of air-pressure loss.

Other standard-setting features of the MaxAir II valve include:

  • No moving parts in the flow path provides superior flow rates and faster drops
  • Compatibility with 4-inch TTMA sumps
  • Rugged stainless-steel and aluminum construction
  • Available in a variety of configurations
  • Operates on a minimum of 40 psi (2.76 bar).
For more information on Civacon and any of its industry-leading solutions, please call (888) 526-5657, visit or email

Media Contact:
Darren Wight, Marketing Representative
OPW Fluid Transfer Group 
(513) 280-0047 or

Civacon™ is the world’s leading provider of cargo tank components and systems designed for the safe, profitable handling and transporting of hazardous bulk products. Civacon is part of OPW Fluid Transfer Group. Organized in 1998, OPW Fluid Transfer Group is comprised of two business units: OPWFTG Global Transportation Business Unit and OPWFTG Global Chemical & Industrial Business Unit. The company’s market-leading brands include: OPW Engineered Systems, Hiltap, Midland Manufacturing, Civacon, Knappco and Sure Seal. The company has manufacturing plants in North America, Europe, China, Brazil and India, and sales offices in Singapore, Beijing, Shanghai and Mumbai. For more information, visit or