Bently Nevada 3300/70 Dual Valve Position Monitor | 3300 Rack
Bently Nevada 3300/70 Dual Valve Position Monitor | 3300 Rack
Manufacturer: Bently Nevada
Product No.: 3300/70-XX-00
Condition:1000 in stock
Product Type: Valve Position Monitors
Payment: T/T, Western Union
Weight: 500g
Shipping port: Xiamen
Warranty: 12 months
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🎚️ Bently Nevada 3300/70-XX-00 Dual Valve Position Indicator
The Bently Nevada 3300/70 is a precision dual-channel valve position monitoring module engineered for continuous surveillance of critical control and safety valves in turbomachinery protection systems. This rack-mounted indicator processes LVDT (Linear Variable Differential Transformer) or potentiometric position feedback signals, providing real-time valve stroke verification and alarm outputs for emergency shutdown (ESD) and process control applications.
🔍 Performance Specifications
Model: 3300/70-XX-00 (Universal Configuration)
Channels: 2× Independent Valve Position Inputs
Rack System: 3300 Series Monitoring Framework
Input Types: LVDT (AC), Potentiometric (DC), 4-20mA
Measurement Range: 0-100% valve travel (scalable)
Accuracy: ±0.5% of full scale
Update Rate: 10 Hz per channel
Output Signals: 4-20mA proportional, relay contacts (SPDT)
Alarm Functions: High/Low position setpoints, deviation alarms
Display: Front-panel LED bargraph (0-100% indication)
Power: -24V DC via 3300 rack backplane
Compliance: API 670, SIL 2 rated for safety applications
🛢️ Critical Application Environments
Steam Turbine Control: Monitors governor valve and throttle valve position in 100-500 MW steam turbines, verifying valve response during load changes and emergency trips to prevent overspeed conditions that could destroy $50M+ turbine-generator sets.
Gas Compressor Anti-Surge: Tracks recycle valve position in centrifugal compressors (5,000-50,000 HP) at LNG facilities and pipeline stations, ensuring anti-surge valves open within 200ms to prevent catastrophic surge events and rotor damage.
Emergency Shutdown Systems: Provides valve position confirmation for ESD valves, blowdown valves, and isolation valves in refineries and offshore platforms, meeting API 670 requirements for independent position verification in SIL 2/3 safety instrumented systems.
Hydro Turbine Wicket Gates: Monitors guide vane position in hydroelectric generators (10-700 MW), detecting mechanical binding, actuator failures, or linkage wear that could cause unit trips or runaway conditions during grid disturbances.
🎯 Operational Advantages
Dual-Channel Redundancy: Simultaneous monitoring of two valves or redundant position sensors on a single valve enables 1oo2 (one-out-of-two) voting logic, reducing spurious trips by 90% while maintaining safety integrity in critical shutdown loops.
Partial Stroke Testing: Supports online valve testing per IEC 61508 requirements, allowing periodic verification of ESD valve functionality (typically quarterly) without process shutdown, saving $200K-$1M per avoided outage in continuous operations.
Diagnostic Intelligence: Built-in sensor health monitoring detects LVDT primary/secondary winding failures, potentiometer wiper wear, and wiring faults, triggering maintenance alerts 2-4 weeks before position measurement errors occur.
Retrofit Compatibility: Drop-in replacement for legacy 3300 series valve monitors (3300/70-01, 3300/70-02 variants) with backward-compatible wiring and mounting, enabling upgrades without rack replacement or extensive rewiring in 20+ year old installations.
📦 Module Package
- 1× Bently Nevada 3300/70-XX-00 Dual Valve Position Monitor
- Front-panel LED bargraph display assembly
- Configuration guide and scaling worksheets
- Factory calibration certificate (NIST traceable)
Authentic Bently Nevada product with global service network support. Designed for instrumentation engineers, turbomachinery specialists, and safety system integrators managing API 670-compliant machinery protection platforms. Compatible with all 3300 rack generations and System 1 condition monitoring software.
Product Description
🎚️ Bently Nevada 3300/70-XX-00 Dual Valve Position Indicator
The Bently Nevada 3300/70 is a precision dual-channel valve position monitoring module engineered for continuous surveillance of critical control and safety valves in turbomachinery protection systems. This rack-mounted indicator processes LVDT (Linear Variable Differential Transformer) or potentiometric position feedback signals, providing real-time valve stroke verification and alarm outputs for emergency shutdown (ESD) and process control applications.
🔍 Performance Specifications
Model: 3300/70-XX-00 (Universal Configuration)
Channels: 2× Independent Valve Position Inputs
Rack System: 3300 Series Monitoring Framework
Input Types: LVDT (AC), Potentiometric (DC), 4-20mA
Measurement Range: 0-100% valve travel (scalable)
Accuracy: ±0.5% of full scale
Update Rate: 10 Hz per channel
Output Signals: 4-20mA proportional, relay contacts (SPDT)
Alarm Functions: High/Low position setpoints, deviation alarms
Display: Front-panel LED bargraph (0-100% indication)
Power: -24V DC via 3300 rack backplane
Compliance: API 670, SIL 2 rated for safety applications
🛢️ Critical Application Environments
Steam Turbine Control: Monitors governor valve and throttle valve position in 100-500 MW steam turbines, verifying valve response during load changes and emergency trips to prevent overspeed conditions that could destroy $50M+ turbine-generator sets.
Gas Compressor Anti-Surge: Tracks recycle valve position in centrifugal compressors (5,000-50,000 HP) at LNG facilities and pipeline stations, ensuring anti-surge valves open within 200ms to prevent catastrophic surge events and rotor damage.
Emergency Shutdown Systems: Provides valve position confirmation for ESD valves, blowdown valves, and isolation valves in refineries and offshore platforms, meeting API 670 requirements for independent position verification in SIL 2/3 safety instrumented systems.
Hydro Turbine Wicket Gates: Monitors guide vane position in hydroelectric generators (10-700 MW), detecting mechanical binding, actuator failures, or linkage wear that could cause unit trips or runaway conditions during grid disturbances.
🎯 Operational Advantages
Dual-Channel Redundancy: Simultaneous monitoring of two valves or redundant position sensors on a single valve enables 1oo2 (one-out-of-two) voting logic, reducing spurious trips by 90% while maintaining safety integrity in critical shutdown loops.
Partial Stroke Testing: Supports online valve testing per IEC 61508 requirements, allowing periodic verification of ESD valve functionality (typically quarterly) without process shutdown, saving $200K-$1M per avoided outage in continuous operations.
Diagnostic Intelligence: Built-in sensor health monitoring detects LVDT primary/secondary winding failures, potentiometer wiper wear, and wiring faults, triggering maintenance alerts 2-4 weeks before position measurement errors occur.
Retrofit Compatibility: Drop-in replacement for legacy 3300 series valve monitors (3300/70-01, 3300/70-02 variants) with backward-compatible wiring and mounting, enabling upgrades without rack replacement or extensive rewiring in 20+ year old installations.
📦 Module Package
- 1× Bently Nevada 3300/70-XX-00 Dual Valve Position Monitor
- Front-panel LED bargraph display assembly
- Configuration guide and scaling worksheets
- Factory calibration certificate (NIST traceable)
Authentic Bently Nevada product with global service network support. Designed for instrumentation engineers, turbomachinery specialists, and safety system integrators managing API 670-compliant machinery protection platforms. Compatible with all 3300 rack generations and System 1 condition monitoring software.