• Please try to be as accurate as possible with your search.
  • We can quote you on 1000s of specialist parts, even if they are not listed on our website.
  • We can't find any results for “”.
    SEE MORE
      SEE PRODUCTS IN SEARCH PAGE ()
      sales1@apterpower.com
      +86 181 0690 9650
      Request a

      Fast Quote

      Manufacturers
      ALL MANUFACTURERS
      • Please try to be as accurate as possible with your search.
      • We can quote you on 1000s of specialist parts, even if they are not listed on our website.
      • We can't find any results for “”.
        Manufacturers
        sales1@apterpower.com +86 181 0690 9650
        Choose a manufacturer
        ALL MANUFACTURERS
        Ask our team:
        • Phone: +86 181 0690 9650
        • E-Mail sales1@apterpower.com

        135613-01-01

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        135613-01-01 is a high temperature DC-LVDT case expansion transducer for turbine supervisory instrumentation, with 25.4mm linear range, 0.20V/mm scale factor, and NEMA 4 housing.
        Get a quick price for 135613-01-01
        Quantity
        *E-mail
        Company
        *Mobile
        *Content
        Upload (gif, jpg, jpeg, png, bmp, doc, docx, xls, xlsx, ppt, pdf, csv)
        Get a Quote
        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
        Shipping Mode
        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for 135613-01-01

        • Manufacturer:
          Bently Nevada
        • Part Number:
          135613-01-01
        • Product Family:
          24765 and 135613 Case Expansion Transducer Systems
        • Product Type:
          Transducer
        • Linear Range:
          25.4 mm (1.00 in)
        • Scale Factor:
          0.20 V/mm (5.0 V/in)
        • Input Power:
          +13.5 to +26 Vdc unregulated, 30 mA minimum
        • Output Voltage:
          +1 to +6 Vdc
        • Output Noise:
          <10 mV
        • -3 dB Frequency:
          200 Hz typical
        • Non-Linearity:
          Less than 0.25% full-scale
        • Stability:
          0.125% full-scale
        • Temperature Coefficient:
          0.05%/°C (0.028%/°F) maximum
        • Operating Temperature:
          -25°C to +85°C (-13°F to +185°F)
        • Storage Temperature:
          -55°C to +125°C (-67°F to +257°F)
        • Thread (Core End):
          6-40 UNF-2B
        • Thread (Machine End):
          1/4-20 UNC-2A
        • Housing Rating:
          NEMA 4
        • Weight:
          1.74 kg
        • Estimated shipping dimensions:
          26.2x11.8x9cm
        • Tariff Code:
          8543902100
        • Country of origin:
          USA
        • Place of shipment:
          Xiamen, Fujian, China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Specifications Application Communication Safety & Compliance

        Features:

        • Measures thermal growth of turbine casings relative to foundation using linear variable differential transformer (LVDT) technology. Designed for high temperature environments up to +85°C.
        • Supports dual transducer arrangement (compatible with 3500/45 Position Monitor) to detect obstructed or jammed sliding feet, preventing casing distortion and machine damage.
        • Encased in NEMA 4 rated protective enclosure, suitable for outdoor and harsh industrial environments. Features 1/4-20 UNC machine end thread and optional spring return for core positioning.
        The 135613-01-01 is specifically engineered for measuring thermal case expansion in large steam and gas turbines. As turbines heat up during startup, the casing expands at a rate that must be monitored to prevent internal rubs between rotating blades and stationary components. The transducer uses Linear Variable Differential Transformer (LVDT) technology, where a rod connected to the turbine casing moves inside a coil assembly.

        A critical application of the 135613-01-01 is its use in dual transducer configurations. Large turbines are mounted on sliding feet that allow the casing to expand freely during thermal cycles. If one foot becomes obstructed or jammed, the casing can distort, leading to misalignment, seal damage, or catastrophic blade rubs. The 135613-01-01, when configured in pairs with a 3500/45 Position Monitor, provides independent measurement of each sliding foot. The monitor continuously compares the two measurements; if a significant difference develops (indicating a jammed foot), an alarm triggers.

        The 135613-01-01 is housed in a NEMA 4 rated protective enclosure, providing water resistance, dust-tight sealing, and protection against ice formation. This makes the transducer suitable for outdoor installation on turbine decks, where it may be exposed to rain, snow, washdown, or condensate from steam lines.The core end uses a 6-40 UNF-2B thread to connect to the turbine casing via a 127mm rod (for the -01 option).

        The 135613-01-01 Bently Nevada Transducer may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).

        Bently Nevada 135613-01-01 Transducer Manuals, Datasheets, Drivers, Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        Bently Nevada 135613-01-01 Transducer Specs

        General

        • Manufacturer GE / Bently Nevada
        • Model 135613-01-01
        • Condition New Original ready stock
        • Product Family 133323-01,133396-01,133819-01
        Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        • Turbine Case Expansion Monitoring: Measures the absolute thermal expansion or contraction of a large utility steam turbine casing relative to its foundation during startup, operation, and shutdown phases
        • Preventing Case Binding & Misalignment: Monitors whether the machine sliding feet are sliding smoothly or binding due to rust/obstruction
        • Process Optimization: Provides critical displacement data for large industrial gas turbines, large compressors, and dual-shaft machinery to help engineers optimize warm-up curves and manage thermal stress.
        • Input Power Requirement: Requires an unregulated external DC power supply of +13.5 to +26 Vdc with a minimum operating current of 30 mA
        • Analog Signal Output: Generates a standard linear continuous voltage output of +1 to +6 Vdc
        • Housing Conduit: Equipped with a standard 1/2-inch conduit fitting on the main housing
        • Mechanical Connection: Features a threaded connecting rod (e.g., 10-32 UNC) that establishes a firm mechanical coupling with the target surface of the turbine
        • Temperature Tolerance: While the mechanical probe rod can touch hot machine surfaces (often utilizing FEP Teflon-insulated wires rated for higher limits), the core sensor electronics must operate within an ambient temperature range of -25°C to +85°C
        • Electromagnetic Interference (EMI/RFI): High-temperature DC-LVDT systems can be sensitive to strong radio frequency (RF) energies present in industrial areas [1]. Under extreme RF exposure, the output may experience up to a 7% full-scale voltage shift
        • ngress Protection: The main heavy-duty housing provides an enclosure rating (typically matching IP65) to withstand harsh dust, water splashes, and physical impacts (engineered to meet criteria like MIL-STD-810).
        Description
        The 135613-01-01 is a high temperature DC-LVDT case expansion transducer designed for turbine supervisory instrumentation (TSI) systems. It measures thermal growth of turbine casings relative to the foundation during startup and operation. The 125065-12 cable is used for connecting Velomitor sensors, while the 135613-01-01 uses its own dedicated wiring. 

        The 135613-01-01 features a linear range of 25.4 mm (1.00 in) with a scale factor of 0.20 V/mm (5.0 V/in). The -3 dB frequency is 200 Hz typical. When comparing to the 125065-12, which is a 12-foot shielded cable for velocity sensors, the 135613-01-01 is a complete transducer assembly with NEMA 4 housing. 

        Installation of the 135613-01-01 requires proper mounting on the turbine foundation opposite the casing attachment point. The transducer uses a 6-40 UNF-2B core end thread and 1/4-20 UNC-2A machine end thread. For CE compliance, a ferrite bead (part number 285741) is required on field wiring. 

        The 135613-01-01 operates at temperatures from -25°C to +85°C and withstands 250g shock and 10g vibration. It is compatible only with the 3500/45 Position Monitor for dual transducer configurations.
        Alternative Names
        135613-O1-O1 I356I3-0I-0I 135613 01 01 135137-01 172103-01 133819-01 133396-01 133323-01
        Technical notes
        The 135613-01-01 is a high temperature DC-LVDT case expansion transducer for turbine TSI systems. Features 25.4mm linear range, 0.20 V/mm scale factor, 200 Hz bandwidth. Input power: 13.5-26 Vdc. Output: 1-6 Vdc. NEMA 4 housing. Operating temp: -25°C to +85°C. Compatible with 3500/45 Position Monitor only. Includes 127mm rod. Requires ferrite bead (285741) for CE compliance.
        Exceptional Service

        Our Mission

        • 100% Satisfaction

          We believe expertise is priceless. With over 20 years of experience, and top engineers on staff, we can help you solve or avoid problems that threaten your business.

        • Trust Guaranteed

          Not only do we have a vast inventory, our team makes sure every piece of equipment is in working condition. Your purchases are also backed by our Warranty.

        • Expertise

          Time is money, especially when your equipment is down. We work quickly to get your equipment on its way so you can get it back up and running.

        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        What is the primary application of 135613-01-01?
        The 135613-01-01 measures turbine case expansion (thermal growth) relative to the foundation during startup and operation. It helps detect casing distortion and potential rubs between rotating and stationary parts.
        What is the linear range and scale factor of 135613-01-01?
        The 135613-01-01 has a linear range of ±25.4 mm (±1.00 inch) and a scale factor of 0.20 V/mm (5.0 V/in). For options -02 and -03, scale factors are 0.10 V/mm and 0.049 V/mm respectively.
        Which monitor is compatible with 135613-01-01 for dual configurations?
        The high temperature dual case expansion configuration is compatible only with the 3500/45 Position Monitor. This dual arrangement provides alarm capability for obstructed or jammed sliding feet on the turbine casing.
        What is the rod length for 135613-01-01?
        The 135613-01-01 comes with a 127 mm (5.0 inch) rod. For longer reach applications, options -11 (304.8mm rod) and -12 (304.8mm rod) are available with the same 25.4mm and 50.8mm linear ranges.

        You May Also Like

        Product Browsing History