What is a Control Valve?
A throttling valve with actuator/positioner assembly modulating flow based on 4-20mA signals. Engineered for precise process control (≤±0.5% error) in dynamic water systems.
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Pressure Control ValvePressure Control Valves (PCVs) precisely regulate system pressure using intelligent sensing and modulation.view more -
![Directional Control Valve]()
Directional Control ValveDirectional Control Valves (DCVs) precisely route fluid flow in hydraulic/pneumatic systems using spool, poppet, or rotary mechanisms.view more
Advantages
Adaptive Tuning
Digital positioners with PID auto-calibration.
Cavitation Control
Multi-stage anti-cav trim for ΔP >50 bar.
High Rangeability
100:1 turndown with characterized V-port balls.
Predictive Diagnostics
HART/Profibus-enabled health monitoring.
Technical Specifications
- Actuators: Pneumatic (0.4-7 bar air), electric (IP67 motors), hydraulic
- Flow Characteristics: Linear, equal %, parabolic
- Leakage Class: ANSI/FCI 70-2 Class IV-VI
- Materials: Alloy 20 trim, ceramic-coated cages, PFA-lined bodies
Types
Globe Valves
Precision dosing (CV 0.01-500).
Eccentric Rotary Plug
For slurries (70 dBa noise reduction).
Triple Offset Butterfly
Metal-seated, bubble-tight shutoff.
Cage-Guided
Balanced design for 250+ bar applications.
Applications
pH adjustment loops (0.1-14 range)
Membrane array pressure control (0.5 bar accuracy)
Thermal desalination brine concentration
Cooling tower blowdown automation
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