Industrial Plastic Valves & Piping Systems
CPVC · UPVC · PPH · PVDF — Pneumatic & manual Valves, Pipes & Fittings for Corrosive and High-Temperature Service
A China-based manufacturer and supply partner delivering complete plastic piping systems — competitive factory-direct pricing, flexible MOQ, and ANSI, DIN & JIS standards for projects across the Middle East, Southeast Asia, and worldwide.
Our Product Range
Pipes, fittings and valves in four engineering plastics — UPVC, CPVC, PPH and PVDF — for water, chemical and industrial systems.
Ball Valves (True Union)
Available in UPVC · CPVC · PPH · PVDF
Pneumatic & manual, full-port flow control
Butterfly Valves
Available in UPVC · CPVC · PPH · PVDF
Pneumatic actuated, large-diameter line isolation
Diaphragm Valves
Available in UPVC · CPVC · PPH · PVDF
Precise control for aggressive media
Check Valves
Available in UPVC · CPVC · PPH · PVDF
Backflow prevention for pumping systems
Pipes & Fittings
Available in UPVC · CPVC · PPH · PVDF
Complete matching system, one supplier
Which Material Do You Need?
Match your media and temperature to the right plastic. Not sure? Our engineers will help you choose.
UPVC
Up to 55°C · Most economical
Best for: ambient water, dilute chemicals, drainage
The everyday choice for cold water and low-cost corrosion resistance.
CPVC
Up to 100°C · Strong value
Best for: hot acids, copper leaching, chlorinated water
Handles higher temperatures than UPVC at a fraction of PVDF’s cost.
PPH
Up to 85°C · Best ROI for caustics
Best for: hot caustic and alkaline solutions (e.g. sodium hydroxide)
The economical pick when the media is hot and alkaline.
PVDF
Up to 120°C · Premium performance
Best for: concentrated acids (98% sulfuric), solvents, ultra-pure media
The safest choice when nothing else survives the chemical.
Why Buyers Choose Huiya
Complete System Supply
Pipe, fittings and valves from one source — no mixing suppliers, no fit-up surprises.
Factory-Direct Pricing
You buy from the manufacturer, not a trader — competitive cost on every line item.
Flexible MOQ
Small trial orders or full container loads — we work with your volume.
Multi-Standard Manufacturing
ANSI, DIN and JIS, produced to your project’s spec.
Applications by Industry
Water Treatment
Recommended: UPVC / CPVC
Chemical Processing
Recommended: CPVC / PVDF
Mining & Copper Leaching
Recommended: CPVC
Chlor-Alkali / Caustic
Recommended: PPH
Seawater Desalination
Recommended: UPVC / CPVC
Electroplating
Recommended: PVDF
Proven in the Field
A copper mining operation in South America switched to CPVC for its sulfuric-acid leaching lines.
A chlor-alkali plant relies on PPH piping for hot caustic service.
Seawater desalination systems run on Huiya UPVC and CPVC lines.
ISO Quality System
ISO-certified manufacturing partners
4 Engineering Plastics
UPVC · CPVC · PPH · PVDF
ANSI / DIN / JIS
Multiple standards
Exporting to 15+ countries
Worldwide export
Ready to Spec Your Project?
Send us your media, temperature and quantities — we’ll recommend the right material and quote you direct from the factory.