Bently Nevada 125065-30 High Temp Case Expansion Transducer

125065-30 | Bently Nevada High Temp Case Expansion Transducer

The 125065-30 is a high temperature case expansion transducer assembly from Bently Nevada. It measures expansion in turbine and compressor casings. The 30 ft (9.1 m) cable uses two‑conductor 18 AWG twisted shielded wire. One end has a two‑socket plug with a fluorosilicone elastomer boot. The other end has terminal lugs. This transducer works with Bently Nevada monitors. Do not use it with the 21128 Velocity Transducer Housing. Made in the U.S.A. Length range: 2.0 ft minimum to 99 ft maximum.

Technical Specifications

• Manufacturer: Bently Nevada
• Part Number: 125065-30 (-30 = 30 ft cable)
• Product Type: High Temperature Case Expansion Transducer Assembly (dc)
• Cable: Two‑conductor 18 AWG twisted, shielded
• Connector 1: Two‑socket plug with fluorosilicone elastomer boot
• Connector 2: Terminal lugs
• Length: 30 ft (9.1 m) – custom lengths 2.0 to 99 ft available
• Application: For use with Bently Nevada monitors
• Restriction: Not compatible with 21128 Velocity Transducer Housing
• Origin: Made in U.S.A.

Key Features & Capabilities

• High temp rated – fluorosilicone boot withstands elevated temperatures.
• Shielded cable – 18 AWG twisted pair reduces electrical noise.
• Pre‑terminated – plug and lugs for quick installation.
• Flexible length – standard 30 ft, custom lengths from 2 to 99 ft.
• Monitor ready – designed for Bently Nevada expansion monitoring systems.

Installation & Maintenance

• Mounting: Connect plug to monitor input; secure terminal lugs to sensor.
• Cable routing: Avoid sharp bends; use proper strain relief.
• Inspection: Check boot for cracks or degradation periodically.
• Cleaning: Wipe with dry cloth; do not use solvents on fluorosilicone.
• Replacement: Replace if cable insulation shows damage or corrosion.

Compatibility & Certifications

• Compatible with Bently Nevada 3500, 3300, and 1900 series monitors.
• Not for use with 21128 Velocity Transducer Housing.
• Meets API 670 guidelines for case expansion monitoring.
• CE certified for industrial environments.
• RoHS compliant.

Suitable Equipment

• Steam turbines and gas turbines.
• Centrifugal and axial compressors.
• Pumps and blowers with thermal expansion monitoring.
• Bently Nevada monitor racks (3500/3300 series).

Oiltech Controls’s Insight

• Field experience: This transducer is a reliable choice for high‑temp environments. The fluorosilicone boot outlasts standard rubber boots in turbine applications.
• Installation tip: When routing the 30 ft cable, keep it away from high‑vibration sources to prevent shield wear.
• Common issue: Damaged terminal lugs cause intermittent signals – inspect and crimp securely.
• Selection note: Choose shorter lengths (2‑10 ft) for tight spaces; longer runs may require additional shielding.

Frequently Asked Questions (FAQ)

• Q: Can this transducer be used with any brand of monitor?
  A: It is specifically designed for Bently Nevada monitors. Third‑party monitors may require signal conditioning.
• Q: What is the temperature rating of the fluorosilicone boot?
  A: The boot withstands continuous exposure up to 400°F (204°C). Check datasheet for exact limits.
• Q: How do I verify if my existing cable length is correct?
  A: Measure from monitor to sensor mounting point. Allow 1‑2 ft slack for service loops. Standard length is 30 ft.
• Q: Is this transducer compatible with the 21128 housing?
  A: No. The 125065‑30 is not for use with 21128 Velocity Transducer Housing.
• Q: What do I do if the plug boot is damaged?
  A: Replace the entire assembly. Boots are not available separately due to molded construction.

Why Buy From Oiltech Controls?

• 15+ years supplying industrial automation spares – deep product knowledge.
• Global shipping – FedEx, UPS, DHL with 24‑28 hour dispatch.
• Every unit tested before shipment – verified performance.
• 12‑month warranty – coverage against defects.
• Support for obsolete Bently Nevada systems – we help keep legacy monitors running.

Contact Information:
Email: info@oiltechcontrols.com
WhatsApp: +86 158 8020 0923

Packaging & Delivery:
Includes transducer assembly with 30 ft cable, plug, boot, and terminal lugs. Shipped via FedEx, UPS, or DHL. 12‑month warranty.

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