Alstom PIB102A (3BEB0180) + MV7306P23 DEH Servo Valve Assembly

Product Description

The PIB102A (3BEB0180) is a power & bus interface board for Alstom Alspa 6000 / DEH turbine control system, while MV7306P23 is the complete servo valve assembly part number (core valve body VP32703X). This set is used for steam turbine digital electro-hydraulic governing control, matched with phosphate ester EH fire-resistant hydraulic oil, converting 4–20mA control signal from the DEH controller into proportional hydraulic flow to regulate the turbine governing valve opening for speed and load closed-loop control.

• Part Number: PIB102A (3BEB0180), Assembly PN: MV7306P23, Brand: Alstom / Converteam / GE Vernova
• PIB102A type: Eurocard rack plug-in power and bus interface board, belongs to Alspa 6000 DCS/DEH series
• PIB102A function: Rack power distribution, backplane bus communication, signal conditioning for servo valve command and LVDT feedback signal, fault diagnosis for the hydraulic actuator loop
• MV7306P23 servo valve: Two-stage nozzle-flapper torque motor mechanical feedback servo valve, 4-way spool structure
• Control signal: 4–20mA analog command signal, LVDT position feedback
• Working medium: Phosphate ester EH anti-flame hydraulic oil
• Working pressure: 16MPa, designed for turbine EH oil system
• Mounting: PIB102A installs inside DEH control cabinet rack; MV7306P23 mounts on hydraulic actuator manifold
• Indicators: LED status for power, bus link, servo command, feedback fault
• Certifications: CE, meets power plant DEH control specification
• Manufacturer Status: EOL legacy turbine spare; aftermarket supply: NOS surplus, fully tested refurbished units
• Typical gross weight: PIB102A ~0.32 kg; MV7306P23 assembly ~3.6 kg, origin: France
• Compatible system: Alstom steam turbine DEH, 600MW / 1000MW supercritical & ultra-supercritical units

Applications

• Thermal power plant steam turbine high-pressure governing valve DEH hydraulic control loop
• Closed-loop speed, load regulation and primary frequency modulation of steam turbine
• Power plant EH oil system overhaul, spare replacement and DEH retrofit project
• Coal-fired and combined-cycle turbine governing skid matching control interface

FAQ

Q: What is the relation between PIB102A and MV7306P23?
A: PIB102A is the electronic interface board in the DEH cabinet, responsible for sending command and receiving LVDT feedback; MV7306P23 is the hydraulic servo valve assembly on the actuator, they form a complete governing valve control loop together.

Q: What is the difference between MV7306P21 and MV7306P23?
A: They are both VP327 series servo valve assemblies, different internal spool flow rating and manifold interface, not directly interchangeable.

Q: Can PIB102A replace PIB201A?
A: No, PIB102A is dedicated servo/actuator interface board, PIB201A is general I/O bus carrier board, bus timing and firmware are different.