Durable, Corrosion-resistant Valves For Plumbing And Heating
3-piece copper ball valve offers reliable flow control and shut-off in plumbing, heating, and gas systems, with superior corrosion resistance and easy maintenance.
Durable, Corrosion-resistant Valves For Plumbing And Heating
3-piece copper ball valve offers reliable flow control and shut-off in plumbing, heating, and gas systems, with superior corrosion resistance and easy maintenance. ideal for water, gas, and hvac applications, it ensures durable pipeline performance up to 600 psi.
3-Piece Ball Valve is a high-performance flow control device designed for precise regulation and shut-off in industrial piping systems. Compliant with standards like API 608, ASME B16.34, and GB/T15185, these industrial ball valves are constructed from materials such as stainless steel (AISI 316/304), carbon steel (A105), or bronze (C95800), offering exceptional corrosion resistant ball valve properties. Widely used in oil and gas, petrochemical, water treatment, and HVAC systems, they provide reliable pipeline flow control under pressures up to 1000 PSI and temperatures ranging from -29°C to 200°C, ensuring robust performance in diverse environments.
Manufactured through precision casting or forging, the 3-piece ball valve features a modular design with a body and two end caps bolted together, allowing easy disassembly for maintenance without removing the valve from the pipeline. Available in sizes from 1/4" to 4" (DN6 to DN100), they support threaded (NPT, BSP), flanged, or welded connections, with full port designs ensuring minimal flow resistance. The valve’s ball, typically made of stainless steel (ASTM A182 F316), rotates 90° for quick shut-off, while PTFE or metal seats provide leak-free sealing. Surface treatments like passivation or electro-polishing enhance corrosion resistance, making them suitable for water, oil, gas, and mildly corrosive media.
3-Piece Ball Valves undergo rigorous testing, including hydrostatic, leakage, and pressure tests, to comply with API 598 and GB/T13927 standards. With a minimum tensile strength of 515 MPa and yield strength of 205 MPa for AISI 316, these valves ensure durability in demanding conditions. Their quarter-turn operation enables rapid flow control, while the full port design minimizes pressure loss, making them ideal for full port ball valve applications in chemical processing and water distribution. Features like blowout-proof stems, anti-static devices, and locking handles enhance safety, with fire-safe designs meeting API 607 standards.
Compared to 1-piece or 2-piece ball valves, the 3-piece ball valve offers superior maintenance flexibility, as internal components can be repaired or replaced in-line. Certified by NSF/ANSI 61 for potable water and API 6D for pipeline safety, these valves support manual, pneumatic, or electric actuation for versatile control. Their compact design and low torque requirements facilitate easy installation, with options for high-pressure models up to 1000 PSI. Specialized versions, such as cryogenic or oxygen-cleaned valves, cater to specific needs like LNG or medical gas applications.
Addressing challenges like corrosion, leaks, and frequent maintenance, 3-Piece Ball Valves deliver reliable, efficient solutions for industrial piping systems. Their corrosion-resistant construction, easy maintenance, and precise shut-off make them a preferred choice for engineers seeking durable high-pressure ball valves. Backed by Sunny Steel’s white-glove service, these valves ensure exceptional performance, safety, and longevity in oil and gas, petrochemical, and water treatment applications.
Sample specifications for reference. Designed for reliable performance in high-pressure applications.
| Organization | Standard | Description |
|---|---|---|
| ANSI | American National Standards Institute | General industrial standards |
| API | American Petroleum Institute | Standards for oil and gas industry |
| ASME | American Society of Mechanical Engineers | Boiler and pressure vessel codes |
| BS | British Standards | UK national standards |
| GB, JB, HG | China Valve Standards | Chinese national and industry standards |
We offer valves in a wide range of materials to meet diverse industry requirements. Additional grades are available upon request.
| Material | Main Properties | Typical Applications |
|---|---|---|
| Carbon Steel | High strength, cost-effective | General industrial, water, oil & gas |
| Stainless Steel | Excellent corrosion resistance | Chemical, food, pharmaceutical |
| Alloy Steel | High temperature & pressure resistance | Power plants, refineries |
| Duplex Steel | High strength, seawater resistance | Marine, offshore, oil & gas |
| Nickel Alloys | Extreme corrosion & heat resistance | Chemical, aerospace, marine |
| Cast Iron | Low cost, limited strength | Low pressure water systems |
| Bronze & Brass | Seawater resistance | Marine, small valves |
Upstream, midstream, and downstream operations, including drilling, refining, and transportation.
Handling corrosive and hazardous chemicals in various chemical plants.
Steam, water, and fuel systems in thermal, nuclear, and hydroelectric plants.
Municipal water supply, wastewater treatment, and industrial water management.
Heating, ventilation, and air conditioning systems in commercial and industrial buildings.
Sterile and hygienic applications, precise flow control in sensitive industries.
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