leakless

leakless

(ˈliːkləs)
adj
not having a leak
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Proprietary components include line of metering pumps, which (according to company) offer greater volumetric efficiency and a higher case-pressure rating than standard pumps and magnetic-drive couplings for a sealless, leakless interface between pump and motor.
Perhaps he is purveying the product of a massive disinformation scheme involving thousands of forged documents created by a seamless, leakless network of Russian and American agents dedicated to historical fabrication; but it is hard to imagine why such a project would have been undertaken and much easier to assume that Weinstein's material is probably the real thing.
Install 350 "leakless" valves in the new project and retrofit 200 to 400 valves in the existing refinery;