#15 2.1 gallon Flexcon Expansion tank is constructed of the highest quality steel, the HTX is a true work horse. HTX comes standard with a 100% butyl diaphragm. SXHT goes even one step further with our patented CAD2 diaphragm, offering even lower permeability rates at higher temperatures. Additionally, both tank lines’ diaphragms are oversized, which maximizes drawdown and minimizes wear. This design feature virtually eliminates diaphragm stretch, further promoting longevity. Technical Information Flexcon HTX Brochure Flexcon HTX Specifications Flexcon HTX Submittal Features Tank: 16- gauge cold rolled steel 2.1 Gallon 1/2″ Male NPT thread Finish: Appliance-quality paint for corrosion resistance Diaphragm Material: 100% butyl rubber Connection: Welded steel Testing: High pressure, seam weld, helium, final precharge check Air valve: Brass valve with O-ring seal
