The present invention relates to peelable resealable multilayer films which include at least a first polymer layer, a second polymer layer of pressure-sensitive adhesive in direct contact with and bonded to both the first and third layers. The anvil assembly is movable in relation to the shell assembly between spaced and approximated positions. In an exemplary video graphics processing application, one stream of data includes pass-through values of fragments being rendered and the other stream of data includes corresponding displaced texture coordinate pairs. Preferably, the valve is actuated to the lift position by the impact of a plunger dropped from a lubricator at the wellhead, when the pressure in the annulus has reached a predetermined threshold. The planar housing wall may be formed in a block of milled aluminum and may have a thickness of less than 1 mm.