Product Description

The Bently Nevada 135613-01 is a high-precision Case Expansion Transducer Assembly designed for critical machinery protection and condition monitoring. Part of the industry-leading Bently Nevada sensor line, this assembly is specifically engineered to measure the thermal growth of a machine's casing relative to its foundation. Accurate case expansion monitoring is vital for preventing mechanical stress and misalignment in large rotating equipment, such as steam turbines and centrifugal compressors.

Built for the rigors of power generation and heavy industrial environments, the 135613-01 features a robust 304 stainless steel probe case and a high-performance Polyphenylene Sulfide (PPS) probe tip. This transducer assembly interfaces seamlessly with the Bently Nevada 3500/45 Position Monitor, providing real-time data to predict maintenance needs and detect abnormal thermal behavior before it leads to catastrophic failure. With its wide operating temperature range and exceptional stability, it remains a standard for reliability in high-heat applications.

Technical Specifications

• Manufacturer: Bently Nevada (Baker Hughes)

• Model Number: 135613-01

• Product Type: High Temperature Case Expansion Transducer Assembly

• System Compatibility: Bently Nevada 3500/45 Position Monitor

• Linear Range Options: 25.4 mm (1.0 in) to 101.6 mm (4.0 in)

• Spring Configuration: 00 (Without spring return)

• Mechanical Construction:

• Probe Tip: Polyphenylene Sulfide (PPS)

• Probe Case: 304 Stainless Steel (SST)

• Sensor Housing: A380 Aluminum

• Connector Material: Gold-plated brass or beryllium copper

• Electrical Performance:

• Default Scale Factor: 0.346 V/mm (8.79 V/in)

• Optional Scale Factor: 0.20 V/mm (5.0 V/in)

• Frequency Response (-3dB): 200 Hz (Typical)

• Stability: 0.125% of full-scale

• Temperature Coefficient: 0.05%/°C (Maximum)

• Environmental Ratings:

• Operating Temperature: Up to +85°C (+185°F)

• Storage Temperature: -55°C to +125°C (-67°F to +257°F)

• Physical Dimensions: 8.89 cm x 11.7 cm x 24.1 cm

• Net Weight: 2.3 kg (2300g)

Application Scenarios

The 135613-01 is a specialized sensor utilized in heavy-duty rotating machinery:

• Steam Turbine Monitoring: Measuring the longitudinal thermal expansion of the turbine casing to ensure it slides freely on its "pedestal" or "sole plate."

• Gas Turbines: Tracking casing growth in high-cycle thermal environments to prevent internal component rubbing.

• Large Compressors: Monitoring axial movement and thermal displacement in oil and gas midstream applications.

• Predictive Maintenance: Providing data for long-term trending of machine health and structural integrity.