Utilities operating nuclear power plants agree that the correct functioning of all safety-related power operated valves is paramount. Regulatory (NRC Generic Letters 89-10/96-05 and 10CFR50.55a) and Code (ASME OM Code, Appendix III/IV) requirements drive the need for utilities to perform baseline and periodic diagnostic testing to ensure these safety-related power operated valves are capable of performing their required design functions.
For nearly two decades Teledyne LeCroy Test Services has been a pioneer in the development of measurement and analysis tools used to obtain accurate and reliable valve test data. These tools include patented sensors that are easy to install, thus reducing personnel exposure and test time. These sensors, coupled with the powerful QUIKLOOK 3.5-FS data acquisition hardware and software, make Teledyne's MOV, AOV, and CHK Valve Test Systems second to none.
Teledyne LeCroy Test Services also offers industry-unique MOV, AOV, and CHK Valve calculation engines and databases to automate design margin analysis, actuator setup and many other trending and analysis tasks required of the Nuclear Valve Engineer.
In addition to the above, TLTS offers engineering services to support utilities in implementation activities related to their power operated valve programs. Typical support activities provided by TLTS personnel include, but are not limited to, design basis calculations, overthrust evaluations, diagnostic trace anomaly reviews, self-assessment support, Appendix III / IV program gap analyses, and custom program / test reports.
AOV | MOV | CHK/SOL | Systems | |
QUIKLOOK 3.5-FS | A self-contained “single-box” MOV / AOV valve-testing system used to capture data from any of the sensors noted above or any other strain gage or voltage-based transducer. | |||
QUIKLOOK vida (Valve & IST Data Acquisition) | Compact, lower cost 8-channel data acquisition system configured for either MOV, AOV or Check / Solenoid Valve Testing. | |||
FSQL (FlowScannerQL) | The FlowScannerQL is a powerful valve diagnostic tool that helps you evaluate the performance of all makes and models of control valves— accurately and efficiently. | |||
QL-SENTRY | Dedicated, permanently-installed MOV / AOV monitoring system | |||
Software | ||||
QUIKLOOK FS Pro | MOV / AOV valve-testing software used to acquire, present and analyze data from our QSS and SMARTSTEM sensors or any other strain gage or voltage-based transducer. | |||
Spring Pack Calibration Software | Valve-testing software used to produce a calibration certificate, and to plot generic and calibration data and the sensitivity equation. | |||
MOV Design & Test Database Software (MIDAS & MIDASTEST) | MOV design and test databases and calculation engine that automates valve design margin analysis, actuator setup criteria and required test intervals utilizing various ComEd, EPRI, JOG and BWROG methodologies. Includes powerful "what if" margin analysis tool. | |||
AOV Design & Test Database Software (ACE, ACEDP, and ACETEST) | AOV design and test databases and calculation engine designed to create AOV setup windows, create an AOV Data Record form for use in valve testing and perform a post-test evaluation of the test results. This program will ensure that the methods used by personnel to perform and document these calculations are consistent. | |||
Sensors | ||||
Quick Stem Sensor (QSS) | A patented prefabricated strain sensor that is applied to a valve stem or shaft to obtain a direct measurement of stem thrust and torque without disassembly of the valve. | |||
SMARTSTEM | Teledyne-patented installation of strain gages on a valve stem or shaft to obtain a calibrated and temperature-compensated measurement of stem thrust and torque. | |||
QL-SENTRY Current Transformer Assembly | The QL-SENTRY Current Transformer (CT) Assembly is a multi-channel current sensor solution for MOV online monitoring and diagnostic testing. | |||
Spring Pack Measurement Device Encoder Version (SPMDe) | A linear position sensor (Encoder Version) used to measure spring pack displacement to provide an indirect indicator of stem torque and thrust. | |||
Motor Voltage Attenuator (MVA) | Used to measure Phase-to-Phase motor voltage on 3-phase AC inductive motors | |||
AC Current Probes | Used to measure AC current on MOVs. | |||
AC/DC Current Probes | Used to measure AC & DC current on MOVs. | |||
Pressure Sensors | These ruggedized highly accurate sensors are used to capture test pressures such as diaphragm, line and supply pressure as well as I/P output pressure. | |||
Digital Stem Position Encoder (SPe and SPe-HR) | Measures axial stem or rotary shaft travel on both MOV and AOV applications. | |||
Rotor Contact Indicator (RCI) | Provides signal indicating position (open or closed) of contacts on actuator rotor assembly | |||
Tools | ||||
Ultrasonic Test System (UTS) | The UT System is a handheld device which provides reliable insight into the functionality of a check valve. The device output, screen capture, and accelerometer data provide detailed check valve reports in QUIKLOOK-FS Pro | |||
Digital Radiography System (DRS) | The DRS X-Ray system utilizes a portable X-Ray tubehead, detector, and imaging control software to provide a clear image of the valves internals. | |||
Limit Switch Adjustment Tool (LSAT) | The Limit Switch Adjustment Tool (LSAT) is designed to aid in the safe adjustment of the Limit Switch Assembly. This tool Reduces shorting and risk of damaging "L" bracket gaps. | |||
I/P Booster Assembly | The I/P Booster Assembly allows the user to control a valve with large actuator areas using a standard external I/P resulting in consistent ramp times and profiles. | |||
Spring Pack Calibration Stand (SPCS) | The new TTS Spring Pack Calibration Stand (SPCS), when connected to any Teledyne QUIKLOOK system, includes everything needed to calibrate Limitorque spring packs. | |||
Stem Angle Measurement Device (SAMD) | A device to measure stem angular motion during MOV diagnostic tests. | |||
Thread Removal Tool | Used for the in-situ removal of valve stem threads to permit the installation of our QSS on a smooth stem area for direct, accurate measurement of stem torque and thrust. | |||
Torque Switch Rotation Encoder (TSRE) and HBC Stem Position Encoder (HBC-SPE) Combo Kit | The Torque Switch Rotation Encoder (TSRE) mounts to the torque switch on SMB/SB actuators, allowing measurement of spring pack displacement when access to the spring pack is not available. The HBC Stem Position Encoder (HBC-SPE) mounts to the top of the HBC drive sleeve, and provides a repeatable mechanical connection to measure position. |
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AOV Bracket Kits | The AOV Bracket Kits are used to securely attach the travel transducer in order to accurately measure valve travel for a diagnostic test. |
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Calibration Systems | ||||
QL3.5CAL / CALFSQL | QL3.5CAL / CALFSQL is a software application developed by Teledyne LeCroy Test Services (TLTS) for the calibration of QUIKLOOK 3.5-FS (QL3.5-FS) and FSQL valve diagnostic systems. | |||
TravelCAL | TravelCAL is a combination hardware / software system used to automate the testing and calibration of displacement sensors. Initially designed for testing linear sensors, both digital and analog type. The addition of an optional Rotary fixture allows for the testing of Rotary Encoder sensors. | |||
QL TEDS Editor | QL TEDS Editor is a program developed by Teledyne LeCroy Test Services (TLTS) to read/write data to Transducer Electronic Datasheet (TEDS) chips for automatic channel configuration on QL3, QL3.5, QL-SENTRY, QL-vida, and FSQL data acquisition systems. |