Description
Control Ball Valves (V-port and modulating ball valves) are advanced flow-control valves designed for high-precision throttling, pressure regulation, and tight fluid isolation. Featuring customized V-notch ball profiles (30°, 60°, or 90°), these valves deliver equal-percentage flow characteristics and excellent rangeability in automated industrial processing.
Engineered for high-frequency regulation, these control valves integrate into automated pipelines alongside our industrial butterfly valves and connect securely using precision-machined industrial flanges.
Technical Specifications
| Technical Parameter | Specification Details |
|---|---|
| Nominal Diameter Range | DN15 to DN300 (1/2" to 12") |
| Nominal Pressure | PN16 / PN40 / PN64 / Class 150 / Class 300 / Class 600 |
| Body Material | WCB (Carbon Steel), CF8 (304 SS), CF8M (316 SS), Duplex Stainless Steel |
| Ball Profile & Trim | V-Port (30°, 60°, 90°) / O-Port slotted control ball |
| Sealing Seat Option | Soft Seat (PTFE / PEEK / RPTFE) / Hard Metal Seat (Stellite / Chrome Carbide) |
| Working Temperature | -29°C to 450°C (-20°F to 842°F) |
| Connection Standard | Flanged End (ASME B16.5, EN 1092-1, JIS B2220) |
| Actuation Type | Modulating Pneumatic Actuator (with 4-20mA Electro-Pneumatic Positioner) / Smart Electric Actuator |
Key Features & V-Port Modulating Advantages
Unlike standard full-port ball valves used solely for ON/OFF isolation, control ball valves offer distinct control benefits:
- Precise Equal-Percentage Flow Control: The V-notch ball geometry maintains smooth, stable flow modulation even at small opening angles, preventing hunting and flow surges.
- High Rangeability & Shearing Action: The sharp edge of the V-port ball creates a shearing effect against the valve seat, allowing easy handling of slurries, fibers, and viscous fluids without clogging.
- Class VI Bubble-Tight Shut-Off: Combines fine throttling accuracy with dependable bi-directional tight sealing when fully closed.
Target Applications & Industries
Our control ball valves are extensively specified for automated industrial regulation:
- Pulp & Paper Processing: Stock line flow control, white water regulation, and pulp slurry isolation.
- Chemical & Petrochemical Refineries: Acid dosing, solvent proportioning, and reactor feed systems.
- Water Treatment & Power Plants: Steam pressure reduction, chemical dosing, and cooling tower loop control.
Frequently Asked Questions (FAQ)
Q1: How do I choose between a 30°, 60°, and 90° V-port ball?
A 30° V-port provides high precision for small flow regulation; a 60° V-port balances fine control with larger capacity; a 90° V-port is optimal for maximum flow volume with linear throttling capability.
Q2: What positioners and accessories are included for automated control?
We supply smart electro-pneumatic positioners supporting 4-20mA control signals, HART protocol, limit switches, air filter regulators, and manual handwheel overrides.
Q3: Can Oucang Valve customize ISO 5211 mounting pads for customer actuators?
Yes. Oucang Valve manufactures standardized ISO 5211 direct-mount pads to fit any third-party electric or pneumatic actuators seamlessly.
About the Manufacturer: Oucang Valve
Oucang Valve is an ISO-certified direct manufacturer specializing in precision control valves, ball valves, and forged piping components. Operating our own casting workshop, CNC machining center, and flow calibration laboratory, we provide custom OEM/ODM solutions and direct global export.
- Core Capability: V-port custom machining, high-pressure leakage testing, ISO 5211 pad standardization, and rapid engineering response.
- Quality Compliance: API 6D, ASME B16.34, EN, DIN, and ISO standards.
- Factory Inquiry: Contact our technical sales team for direct factory quotes, flow coefficient (Cv) calculations, and CAD drawings.
