Alternately, if you *really* have to use a specific tire that doesnt' have that, for whatever reason, *and* you really have to use liners like that, then you could protect your actual tube by taking an old tube you don't need anymore, removing the valve stem, then slitting it along the inner circumference, fitting it over the actual tube to be used inside the tire, then fitting the liner between the tire adn that slit tube.
It also gives you a bit more thickness of tube total, but it also adds more weight and stiffens the tire/tube so it doesn't ride as nice as it would without. :/
Iv'e used this on Yogi's trailer (Flatbed MkIV) and so far it's done a good job (since I often can't avoid the crap on the road edges with the trailer wheels, even if I can with the bike or trike pulling it...and it sucks to fix a flat on a trailer loaded up with a wiggly St. Bernard, or a heavy load of cargo. :/ So whatever I can do to not have to do that, is good).
Sometimes...it doesn't help anyway, though--while I hadn't done this to the smaller MkIII trailer I used for groceries today, just had regular tire and thick tube, I didnt' get a normal flat--the valve stem just blew off the tube, presumably from a defect in it. I have had rotation of tire/tube (on powered or drive wheels on bike and trike) cause this before, so I have a habit of checking before every leg of every trip to ensure proper airing up and perpendicularity of valve stem. It was fine on both trailer wheels when I left the store, but due to traffic and the heavily laden trailer I couldnt' avoid various bad sections of road edge, and some of them banged that wheel (right side) pretty hard.
I don't know if one of the impacts perhaps weakened the valve stem at the defect point (immediately below where the brass tube would have ended), maybe herniated it, I dunno--couldn't find the blown-off stem afterward. :/ But it didnt' blow until about a half mile from the house, afer I'd passed all the problematic road edge areas. I didnt' hear it but I felt the sudden change in drag, and saw the power increase on the CA. Stopped and found the stub of the stem still aligned with the rim's hole for it, so I don't think (but don't know for sure) that the stem came off *after* the blowout, I think it *was* the blowout.
But to knwo for sure I'd have to glue on another valve stem, then inflate the tube and check for leaks. I didnt' find any punctures or marks on the tube in an examination when I got home and unloaded the hundred-plus pounds of groceries/etc., and got the tire off.