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Control Valves & Actuators
2-way Control Valve with Pneumatic Actuator and Positioner
Model: CVA-2W
Globe control valve with diaphragm actuator and smart 4–20 mA positioner for accurate flow and pressure control.
- Balanced plug, linear or equal-percentage trim
- Smart positioner with optional HART
- Spring-return actuator, fail-open or fail-close
- 50:1 rangeability
Nationwide delivery · Free technical advice
Nominal sizeDN15 – DN250
Pressure ratingPN16 / PN40 · Class 150/300
Flow coefficient (Cv)0.25 – 1200
ActuationPneumatic spring + positioner
Overview
The CVA-2W is the heart of process control loops. A balanced-plug globe body with linear or equal-percentage characteristic gives high rangeability, while the smart positioner tracks stem position against the 4–20 mA signal.
Technical specifications
General
- Nominal size
- DN15 – DN250
- Pressure rating
- PN16 / PN40 · Class 150/300
- Flow coefficient (Cv)
- 0.25 – 1200
- Actuation
- Pneumatic spring + positioner
Materials & construction
- Body material
- WCB · CF8M
- Trim material
- AISI 316 · Stellite
- Stem
- AISI 316
Process conditions
- Operating temperature
- −29 … +425 °C
- Leakage class
- IEC 60534-4 Class IV (V option)
- Air supply
- 1.4 – 6 bar
Standards & approvals
- Design standard
- IEC 60534 · ANSI/FCI 70-2
- Certifications
- CE · PED · ATEX (option)
Applications
Steam and water temperature control
Pressure and level control
Power plant process loops
Chemical lines
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