PVDF (polyvinylidene fluoride) valves and piping handle the most aggressive acids, halogens and high-purity media that defeat every other plastic. Sold as Kynar® and Solef®, PVDF stays fully resistant to sulfuric and hydrochloric acid, hydrofluoric acid, wet and dry chlorine, and sodium hypochlorite — to service temperatures around 120°C, higher than UPVC, CPVC or PPH. Because virgin PVDF contains no fillers or plasticizers, it barely leaches, which is why semiconductor ultrapure-water and electronic-grade chemical lines rely on it. Huiya builds our PVDF valves from 100% virgin Kynar® resin — no regrind — in ball, butterfly and diaphragm patterns, true union and flanged, in both DIN metric and ANSI/ASTM dimensions, backed by a 12-month quality warranty. PVDF is the material to specify for concentrated acids, chlorine and high purity; for hot concentrated caustic, step across to PPH. Browse the PVDF range below, or send us your medium, concentration and temperature for material-selection advice.
PVDF covers the most aggressive chemistry, but it isn’t always necessary — see how it compares with CPVC, PPH, and UPVC by chemical in our chemical resistance selector.
PVDF Diaphragm Valve PVDF diaphragm valves handle the media that defeat other plastics — concentrated acids, halogens, and high-purity fluids — while the diaphragm design keeps the flow path free of dead space, packing, and contamination. We build ours from 100% virgin PVDF and offer them in true union, flanged, and pneumatic configurations for chemical […]
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PVDF Butterfly Valve PVDF butterfly valves give you compact, quarter-turn control of large-bore corrosive lines — DN50 to DN500 — in wafer and lug bodies with a PVDF disc and an EPDM or FKM seat. They are the space-saving, economical choice for big-flow isolation and throttling where a ball or diaphragm valve would be bulky
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PVDF Manual Ball Valve PVDF ball valves (manual) give you quarter-turn on/off control of the most aggressive media — concentrated acids, halogens, and ultrapure fluids — in a compact, hand-operated valve that needs no power or air. We build ours from 100% virgin PVDF with a PTFE seat, in true union and flanged configurations for
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PVDF Pneumatic True Union Ball Valve When a line carries 98% sulfuric acid, hydrofluoric acid, aqua regia or 18 MΩ ultra-pure water, an ordinary plastic valve is a failure waiting to happen. The Huiya PVDF pneumatic true union ball valve is built for exactly these duties — a two-piece automated shut-off valve moulded from 100%
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PVDF Pneumatic Flanged Ball Valve The Huiya PVDF pneumatic flanged ball valve brings PVDF’s extreme chemical resistance to larger-diameter, higher-pressure and high-vibration lines. Moulded from 100% virgin PVDF and rated to 120°C, it resists 98% and fuming sulfuric acid, hydrofluoric acid, aqua regia, halogens and aggressive solvents. Its one-piece flanged body bolts directly to ANSI,
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PVDF Pneumatic Butterfly Valve The Huiya PVDF pneumatic butterfly valve gives compact, automated isolation and flow control on large-bore lines carrying the most aggressive media. With a virgin-PVDF body and disc rated to 120°C, it resists concentrated acids, halogens and solvents, while the wafer design keeps weight and cost far below a solid PVDF ball
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