Thermoplastic Metal-Replacement Valve Set (Butterfly, Diaphragm, Gate, Wafer Check)

LibertyCES has documented Thermoplastic Metal-Replacement Valve Set (Butterfly, Diaphragm, Gate, Wafer Check) specified across 1 sector application, including Printing.

Printing is one of the industries Asahi names for its 5-family metal-replacement set (semiconductor, mining, pulp and paper, electroplating, printing, landfills, aquaculture, wastewater, aquariums, theme parks, cruise ships). Industry-list evidence with no printing-specific spec, but the named chemistries on the same source — solvents, oxidizers, caustics, acidic waste — are press-wash and fountain-solution chemistry. The Type-14 weir design seals bubble-tight even with pigment/ink solids and its 3-layer diaphragm's PVDF gas barrier resists solvent-vapor permeation; the Wafer Check's 120°F maximum is the lowest ceiling of the five families and rules it out of heated dryer-side loops. ISO 5752 short pattern is the commercial hook: drop-in replacement when a metal valve corrodes out. — examples include Asahi/America Type-57 LIS butterfly (3"-8", 150psi @70°F, ISO 5752 short pattern, Class 6 bubble-tight), Type-55 IS butterfly (PTFE disc, PTFE/Neoprene-backed seat, 2"-12" @150psi, 14"/16" @100psi), Type-14 Flanged Diaphragm Valve (1/2"-4", EPDM or 3-layer EPDM/PVDF/PTFE diaphragm), Type P Gate Valve (2"-8" standard, High Impact PVC, no metal-to-media contact), Wafer Check Valve (3"-12", 150psi 3"-8" / 85psi 10"-12", max 120°F). This is moderately documented in LibertyCES's field data.