Headquartered in Wenzhou, China, Huadu Valve Group focuses on producing sturdy industrial valves. Our core GB Floating Ball Valve follows Chinese GB standards and uses solid cast steel to stand high working pressure. Built on floating ball design, it seals tightly with little flow loss and works steadily, common for chemical, metallurgy and water treatment fields.
We’re a certified valve manufacturer with ISO and API approvals, equipped with modern machinery and complete quality checks. Custom OEM and ODM services are available with flexible MOQs. Our valves ship worldwide and earn consistent praise from overseas buyers.
How does a GB Floating Ball Valve work?
The inner ball isn’t secured by an upper and bottom spindle. When shutting off flow, fluid pressure pushes the ball toward the downstream sealing seat to achieve leak-tight closure. Turning the valve stem spins the ball, lining up its through-hole with the pipe to let liquid or gas pass through smoothly.
Key Attributes
Product Type
GB Floating Ball Valve
Stem Material
2Cr13 / SS304 / SS316
Design Standard
GB/T 12224、GB/T 12228
Seat Material
Stellite Hardfaced / PTFE / RPTFE
Face to Face Dimension
GB/T 12221
Gasket Type
Spiral Wound Gasket / RTJ Gasket/ Graphite Gasket
Flange Standard
GB/T 9113、GB/T 9124
Operation Mode
Handwheel, Gear Operated, Electric Actuator, Pneumatic Actuator, Hydraulic Actuator
Pressure Class
PN16 / PN25 / PN40 / PN63 / PN100
End Connection
Flanged, Threaded, Welded (BW/SW)
Nominal Size(DN)
DN15~DN1200
Design Type
Floating Ball, Bolted Bonnet
Body Material
WCB/ CF8 / CF8M/ CF3 / CM3M
Temperature Range
-29℃ ~ 425℃
Bonnet Material
WCB/ CF8 / CF8M/ CF3 / CM3M
Applicable Medium
Water, Oil, Gas, Steam, General Industrial Fluid
Ball Material
WCB + Hardfaced / A105 + Hardfaced / F304 / F316
Testing Standard
GB/T 13927 / Hydrostatic Shell & Seat Test
Advantages
Quick quarter-turn opening and closing, minimal flow loss inside the pipeline, reliable sealing at regular working pressure and competitive market price.
What does GB mean?
GB refers to China’s official National Standard (short for Guobiao). Our valves are produced strictly following these domestic manufacturing specifications.
What are they used for?
These GB floating ball valves commonly cut off pipeline flow across water treatment, chemical processing and metallurgy industries for liquid and gas medium control.
Extra product info for GB Floating Ball Valve
Made mainly from cast carbon steel, this valve is built to match China’s GB production rules. Flanged connection makes on-site installation and later maintenance much easier.
Our factory follows ISO and API standards during production, every piece goes through strict pressure and sealing tests before delivery. We support OEM and custom sizing to fit different project requirements.
Most clients pick this valve for routine on-off work instead of flow regulation. It suits normal temperature liquid and gas, not recommended for corrosive strong acid media without special lining.
We make valves spanning DN15 to DN1000, built to GB specs in PN16, PN25, PN40, PN64 and PN100 pressure grades for most regular piping work.
Every production stage, from material inspection, machining to assembly, is done inside our plant so we easily manage quality. Global buyers prefer our valves thanks to steady performance and competitive pricing. Handwheel is fitted normally, and actuators can be mounted upon request for auto running.
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