Float Valve – China Manufacturer & Supplier

Premium Quality Float Valves from China

As a professional China float valve manufacturer, Yuanjd Valve specializes in the design, production, and supply of high-performance float valves—also known as ball float valves or ballcocks—for a wide range of liquid level control applications. Our float valves are engineered to serve as the “automatic caretaker” of tanks and reservoirs , precisely regulating liquid levels to prevent overflow, dry-running, and system damage while ensuring uninterrupted operations across water supply, industrial processing, and HVAC systems.

A float valve is a mechanical device that automatically controls the flow of liquid into a tank or container. Its core purpose is to maintain a consistent liquid level and prevent overflowing or dry-running. The operating principle is elegantly simple: a hollow float ball attached to a lever arm rises and falls with the liquid level, actuating the valve to either stop or allow flow. As the liquid level rises, the float rises and causes the lever arm to move, closing the valve. When the level drops, the float descends, reopening the valve to replenish the tank. This fully automatic, maintenance-free operation makes float valves indispensable for any application requiring reliable liquid level management.

Key Design Features & Technical Advantages

• Float-Operated Automatic Control – No external power or control systems required; fully self-actuated

• Precision Liquid Level Management – Maintains preset levels with high accuracy, preventing overflow and dry-running

• Durable Construction – Available in ductile iron, cast iron, and stainless steel bodies for long service life

• Corrosion-Resistant Internals – Stainless steel float balls and trim components ensure reliable operation in water and corrosive media

• Balanced or Non-Modulating Designs – Flexible configurations to suit different pressure conditions and flow requirements

Technical Specifications

Applications & Industries

Float valves are indispensable across multiple sectors:

• Water Supply & Distribution – Elevated water tanks, ground-level reservoirs, booster stations

• Cooling Towers & HVAC Systems – Make-up water control, condenser water systems

• Industrial Processing – Chemical tanks, process water storage, wash-down systems

• Agricultural Irrigation – Storage tanks, livestock watering systems

• Fire Protection Systems – Fire water storage tanks, sprinkler system reservoirs

• Wastewater Treatment – Equalization basins, effluent storage

Why Choose Yuanjd Valve as Your China Float Valve Manufacturer?

At Yuanjd Valve, we combine decades of manufacturing expertise with advanced production facilities and rigorous quality control systems. As a leading China float valve supplier, we are committed to delivering products that meet international quality standards—including AWWA C512 and BS EN 1074—while offering competitive factory-direct pricing. Our valves used in potable water service are certified to NSF/ANSI 61 Drinking Water System Components - Health Effects.

The global Ball Float Valve market was valued at approximately USD 5.81 billion in 2025 and is projected to reach USD 8.93 billion by 2032, with a compound annual growth rate (CAGR) of 6.32% . China remains the world’s leading manufacturer of float valves, with specialized manufacturing clusters offering unrivaled advantages in cost, scale, and technological advancement. Yuanjd Valve leverages this ecosystem to provide our global clients with high-quality float valves at competitive prices—typically 15–30% lower than Western equivalents—backed by reliable delivery and responsive after-sales support.

Our float valves feature:

• AWWA C512 & BS EN 1074 compliant design

• Stainless steel float balls for superior corrosion resistance and long service life

• Fusion-bonded epoxy coating (internal and external, 250 micron min.) for enhanced durability

• NSF/ANSI 61 certification available for potable water applications

• ISO 9001:2015 certification – Quality management systems

• CE marking – Compliance with European market requirements

OEM & Customization Services

We offer comprehensive OEM and customization services, allowing you to specify materials, sizes, pressure ratings, end connections, float materials, and certifications that precisely match your industrial requirements. Whether you need flanged or threaded connections, ductile iron or stainless steel bodies, or specialized designs for potable water or corrosive media—our engineering team can deliver tailored solutions for your specific project needs.

Contact Us

Partner with a reliable float valve manufacturer in China. Contact Yuanjd Valve today for product inquiries, technical support, or to request a quote. Our experienced team is ready to assist you with professional guidance and prompt service.