Description
Control Regulating Valves (industrial flow & pressure modulating valves) are essential control elements designed for automated precision throttling of liquid, gas, and steam lines. Engineered to adjust fluid flow rate, differential pressure, temperature, and liquid levels, these regulating valves deliver highly accurate equal-percentage or linear flow characteristics across severe industrial process loops.
Built for continuous automated operation, these regulating valves integrate smoothly into complete control systems alongside our industrial butterfly valves and mount securely to heavy-duty piping via precision-machined industrial flanges.
Technical Specifications
| Technical Parameter | Specification Details |
|---|---|
| Nominal Diameter Range | DN15 to DN600 (1/2" to 24") |
| Nominal Pressure Range | PN16 / PN40 / PN64 / PN100 / Class 150 to Class 1500 |
| Body Material Options | WCB (Carbon Steel), WC6, WC9, CF8 (304 SS), CF8M (316 SS), Duplex SS |
| Internal Trim Structure | Single Seated / Cage-Guided Balanced / Anti-Cavitation Multi-Stage Trim |
| Flow Control Characteristic | Equal Percentage (EQ%), Linear, Quick Opening |
| Operating Temperature | -196°C to 560°C (-320°F to 1040°F) |
| Connection Standard | Flanged End (ASME B16.5, EN 1092-1) / Butt-Welded (BW) |
| Actuator & Signals | Pneumatic Diaphragm / Smart Modulating Electric Actuator (4-20mA, HART, Modbus) |
Key Features & Process Regulation Performance
Engineered for high accuracy and continuous industrial duty, our control regulating valves stand out in process automation:
- High Rangeability & Throttling Precision: Rangeability up to 50:1 allows steady, smooth flow modulation from low minimum flow rates up to full valve opening without hunting.
- Dynamic Pressure & Noise Management: Pressure-balanced cage designs lower stem friction and reduce vibration, flashing, and hydrodynamic noise under severe pressure drops.
- Smart Digital Integration: Features intelligent electro-pneumatic positioners for real-time valve position feedback, self-diagnostics, and automatic stroke calibration.
Target Applications & Industries
Our control regulating valves handle critical fluid parameters across diverse process sectors:
- Chemical & Petrochemical: Acid/alkali dosage, reactor temperature regulation, and high-pressure liquid transfer.
- Thermal Power & Steam Systems: Steam pressure reduction stations, boiler feed water loops, and condensate regulation.
- Oil & Gas Processing: Separator liquid level control, pipeline pressure regulation, and gas throttling.
Frequently Asked Questions (FAQ)
Q1: How do I select between linear and equal percentage flow characteristics?
Equal percentage (EQ%) is ideal for systems with large pressure drop variations or where flow regulation is required at low openings. Linear characteristics are best suited for systems with steady pressure differentials, such as liquid level control.
Q2: What fail-safe actions are available for pneumatic actuators?
We provide spring-return pneumatic diaphragm actuators supporting both Fail-Close (Air-to-Open) and Fail-Open (Air-to-Close) configurations to protect plant safety during air loss.
Q3: Can Oucang Valve assist with Cv calculations and sizing?
Yes. As a direct factory, Oucang Valve provides full engineering sizing, calculating Cv values, fluid velocity, and noise levels according to your process conditions.
About the Manufacturer: Oucang Valve
Oucang Valve is an ISO-certified direct manufacturer specializing in severe-service control valves, regulating valves, and forged pipe flanges. Operating our own foundry, CNC machining facility, and flow calibration laboratory, we provide full material certification, hydrostatic testing, and custom OEM engineering for global clients.
- Core Capability: Precision trim machining, anti-cavitation cage design, Cv calculation support, and fast direct global delivery.
- Quality Compliance: ASME B16.34, API 600, EN, DIN, and ISO standards.
- Factory Inquiry: Contact our engineering sales team for direct factory quotations, sizing calculations, and CAD drawings.
