Flanged Ball Valves

Flanged ball valves connect to your pipework with bolted flanges, making them the right choice for larger-diameter lines and for systems that need a robust, leak-tight joint at standard flange dimensions. Huiya produces flanged plastic ball valves in UPVC, CPVC, PPH and PVDF, pneumatically actuated or manual, so the same connection works whether your media is cold water or hot acid. Flange drilling follows ANSI, DIN or JIS, so the valve drops straight onto your existing system. Typical uses include main process lines, pump isolation and large chemical-transfer duty. Tell us your size, standard and media for a quote.

Flanged ball valves for larger-bore, higher-pressure pipeline service, available in four thermoplastics — UPVC, CPVC, PPH, and PVDF — in both pneumatic (actuated) and manual versions. The bolted flange connection makes them the right choice for permanent installations on larger chemical process lines, water and wastewater mains, transfer lines, and mining process piping, where a true union design would be undersized.

Choosing the right body material

  • UPVC — general water and light chemical service to ~55°C; lowest cost.
  • CPVC — hot corrosive media to ~90°C; acids and hot water.
  • PPH (polypropylene) — strong caustic, alkalis, and abrasive service.
  • PVDF — the most aggressive media (98% sulfuric acid, hydrofluoric acid, sodium hypochlorite, solvents) and high-purity duty to ~120°C.

Valves are full-port with EPDM or FKM seals matched to your media, and are drilled to ANSI Class 150 (Schedule 80), DIN PN, or JIS flange standards to bolt straight into existing pipework. Pneumatic versions come with double-acting or spring-return actuators sized to your operating torque, and can be supplied with solenoid valves, positioners, and limit switches as a complete assembly.

As a factory-direct manufacturer, we supply OEM, project, and distributor quantities worldwide, with custom configurations and short lead times.

Need a smaller-bore valve or one you can remove without cutting pipe? See our true union ball valves. New to specifying? Read our complete guide to choosing a plastic ball valve and check your medium in the chemical resistance checker. Browse all plastic valves, or if a valve is leaking, see how to fix a leaking PVC ball valve.

Drilling available to ANSI Class 150, DIN PN10/PN16 or JIS 10K — see the flange standard comparison before you order.

Request a quote with your size, material, and media, and our engineers will recommend the right valve and actuator for your application.

UPVC true union and flanged ball valves with red handles, comparing socket and flanged connections for general industrial water treatment pipelines

UPVC / PVC Ball Valve (Manual)

UPVC / PVC Ball Valve UPVC ball valves — also known as PVC ball valves — are the economical workhorse for quarter-turn on/off control of ambient-temperature water and mild chemicals: industrial and RO water, weak acids and alkalis, salt solutions, and seawater. We build ours from virgin UPVC (unplasticized PVC) with a PTFE seat, in

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PPH true union and flanged ball valves with red handles, showcasing a comparison of union and flange connection options for industrial alkaline pipelines

PPH Ball Valve (Manual)

PPH Ball Valve (Manual) PPH ball valves (polypropylene) give you quarter-turn on/off control of hot alkaline media to about 85 °C — high-concentration caustic soda, alkali carbonates, and salt solutions — in a tough, hand-operated valve. We build ours from virgin PPH with a PTFE seat, in true union and flanged configurations for chlor-alkali, alkali

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High-purity PVDF true union and flanged ball valves with red handles, comparing socket fusion and flanged connections for semiconductor ultrapure water systems

PVDF Manual Ball Valve

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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Angled view of an automated fluoropolymer PVDF flanged ball valve, guaranteeing absolute chemical inertness in semiconductor and ultrapure water applications

PVDF Pneumatic Flanged Ball Valve

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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Fully assembled PVC pneumatic flanged ball valves, showing the solid flanged connection for secure and leak-proof chemical fluid control.

PVC Flanged Pneumatic Ball Valve

PVC Flanged Pneumatic Ball Valve The Huiya PVC flanged pneumatic ball valve — UPVC in DIN-standard markets — is a large-bore, full-port automated valve for ambient-temperature water and chemical service, sizes DN15–DN200. Available in ANSI Class 150, DIN PN10, and JIS 10K flange standards, its one-piece molded flange eliminates root leakage — making it ideal

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Fully assembled pneumatic PPH flanged ball valves, highly resistant to hot alkalis and strong acids for automated chemical fluid control.

PPH Flanged Pneumatic Ball Valve

PPH Flanged Pneumatic Ball Valve The Huiya PPH pneumatic flanged ball valve is a large-bore, full-port automated valve for hot alkaline and corrosive service in chemical, metallurgical, and wastewater applications. Available in ANSI Class 150, DIN PN10, and JIS 10K flange standards and sizes DN15–DN200, its one-piece molded flange eliminates root leakage — the ideal

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CPVC flanged pneumatic ball valve by Huiya

CPVC Flanged Pneumatic Ball Valve

CPVC Flanged Pneumatic Ball Valve The Huiya CPVC flanged pneumatic ball valve is a large-bore automated valve for corrosive and high-temperature fluid control in chemical processing, water treatment, and mining. Available in ANSI Class 150, DIN PN10, and JIS 10K flange standards and sizes from DN15 to DN200, it pairs CPVC’s chemical resistance with a

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