Detailed Product Introduction
This Rig-23 NOV electrical parts collection encompasses all mission-critical electrical components for safe, efficient rig operation, spanning power modules, control PCBs, sensors, switches, joysticks, transmitters, solenoid valves, timing belts, bearings, and specialized HMI hardware. Every part is tied to the exact NOV job numbers and equipment models for guaranteed fit and function, eliminating guesswork and compatibility errors during repairs.
The parts are segmented by rig subsystem for streamlined sourcing: SCR House power control components, Varco TDS-11SA Top Drive electrical controls, KEMS monitoring system sensors and converters, and Driller Cabin operator controls and gauges. All components are built to industrial drilling-grade standards, with hazardous-area (HAZARD AREA) rated parts for high-risk drilling zones, ensuring compliance with global offshore and onshore drilling safety regulations.
Functional Performance & Value Highlights
- Uninterrupted Rig Operations: OEM-matched electrical controls and sensors restore factory signal accuracy and response time, reducing control lag and emergency shutdowns by 90%.
- Safety Compliance: ATEX/CE/UL/CSA certified components (including intrinsically safe encoders and pressure transmitters) meet hazardous-area drilling requirements, mitigating safety risks.
- Streamlined Repairs: Pre-matched part numbers and subsystem grouping cut troubleshooting and replacement time by 40%, minimizing rig downtime and lost drilling revenue.
- Long-Term Durability: Industrial-grade components resist vibration, moisture, and extreme temperatures, delivering 10,000+ hours of maintenance-free operation in harsh drilling conditions.
Structural & Engineering Features
- Model-Specific Compatibility: Exact drop-in replacements for Rig-23 NOV equipment, no wiring modifications or calibration adjustments required post-installation.
- Subsystem Segmentation: Parts organized by SCR House, Top Drive, KEMS System, and Driller Cabin for targeted sourcing and inventory management.
- Certified Safety Ratings: Intrinsically safe (I.S.) sensors, explosion-proof (EEXD) switches, and hazard-area HMI screens for compliance with offshore drilling standards.
- Precision Electrical Specifications: Calibrated potentiometers (1KOHM/10KOHM), 24VDC solenoid valves, and high-resolution encoders (512PPR) for precise rig control and monitoring.
Applicable Operating Conditions
- These Rig-23 NOV electrical parts are engineered for harsh onshore and offshore drilling environments where reliability and safety are non-negotiable, including:
- Offshore drilling rigs with hazardous-area (Zone 1/2) operational zones
- Onshore land drilling rigs with high dust, moisture, and vibration exposure
- 24/7 continuous drilling operations with minimal maintenance downtime
- ATEX/CE compliant drilling sites requiring certified electrical components
- NOV Varco TDS-11SA Top Drive and Baylor Elmagco brake system retrofits and repairs
Professional Maintenance & Troubleshooting Recommendations
- Pre-Installation Inspection: Verify part numbers against NOV factory specs, check for physical damage, and test electrical connectivity to avoid faulty installations.
- Safety Lockout Protocol: Follow rig lockout-tagout (LOTO) procedures when replacing electrical components to prevent accidental power activation and injury.
- Calibration Requirements: Recalibrate sensors, encoders, and transmitters post-installation to maintain ±0.5% signal accuracy for KEMS and Top Drive systems.
- Moisture Protection: Seal all electrical connections with marine-grade sealant to prevent corrosion in offshore/humid drilling environments.
- Scheduled Checks: Inspect joysticks, switches, and PCB boards every 500 drilling hours for wear, and replace worn components before failure occurs.
We supply the following spare parts:
| SCR House NOV Job No: 7268 | |||
| 1 | AC MODULE | P/N: 0521-2500-00; | EA |
| 2 | DC MODULE | P/N: 0522-2400-21; | EA |
| 3 | EXCITOR PCB | P/N: 0509-7901-00; | EA |
| 4 | POWER LIMIT CONTROLLER | P/N: 0000-7497-01; | EA |
| 5 | CONTROL BUTTON | P/N: 0100-1518-01; A, B, C 3HD, OFF-IDLE-RUN , PB1(GEN) | EA |
| 6 | POTENTIOMETER | P/N: 0506-0001-00; RHEOSTAT, 1KOHM, 25W, POT1,2PE H | EA |
| Top Drive NOB Job No: 145730C | |||
| 1 | ENCODER | P/N: 115299, ENCODER, DIGITAL,F/VARCO TDS-11SA TOP DRIVE | EA |
| 2 | BELT & PULLY | P/N: 120117, BELT, (MT) TIMING,F/VARCO TOP DRIVE TDS-11SA | EA |
| 3 | PRESSURE SWITCH FOR IBOP | P/N: 83095-1, SWITCH, PRESSURE PHM31 UL/CSA,F/ VARCO TDS-11SA | EA |
| 4 | PRESSURE SWITCH FOR BLOWER | P/N: 76841, SWITCH, PRESSURE TDS-3 EEX,F/VARCO TDS-11SA TOP | EA |
| 5 | PRESSURE SWITCH FOR OIL | P/N: 87541-1. SWITCH, PRESSURE 30″ HG-20 PSI (EEXD) NEO-DYN SERIES | EA |
| 6 | Two Position Switch | P/N: 30087708-26; SWITCH,SELECTOR 2 POS LR DC,F/VARCO TDS-11SA; | EA |
| 7 | Three Position Switch | P/N: 30087708-36; SWITCH,SELECTION 3 POS MT/LR,F/VARCO TDS-11SA; | EA |
| 8 | Potentionmeter 10k | P/N: 81736-2, POTENTIOMETER, 2W 10K | EA |
| 9 | Indicating Light | P/N: 30087708-38, LIGHT,INDICATIING 24V DC RED | EA |
| 10 | Solenoild Valve | P/N: 127908-J2; 3-POS 24VDC | EA |
| 11 | Solenoild Valve | P/N: 127908-D2; 2-POS, 24VDC | EA |
| 12 | RHEOSTAT | P/N: 116551, THROTTLE,VDC,F/VARCO TDS-11SA | EA |
| 13 | Push Button | P/N: 30087708-02, PUSH BUTTON,FLUSH,LR/BLKDC,F/ VARCO TDS-11SA | EA |
| KEMS System NOV Job No: 43063518 | |||
| 1 | KEMS SCREEN | P/N: 16500882-001, 15″HMI-HAZARDS AREA W WINDOWS 7 | EA |
| 2 | ENCODER | P/N: 10077607-001; ENCODER-I.S.512PPR 1-1/4″ 14UNS; | EA |
| 3 | PROXIMITY | P/N: 10043709-001; SW-PROXIMITY, INDUCTIVE, W/FLYIN | EA |
| 4 | TRANSMITTER | P/N: 10044756-001; TRANSMITTER, PRESSURE 0-600/3KPSI HOOKLOAD | EA |
| 5 | PRESSURE TRANSDUCER | P/N: 10077045-001; PRESSURE TRANSDUCER, 10K STANDPIPE; | EA |
| 6 | BARRIER CONVERTER | P/N: 10050899-001; CONV-POV; VDC, MA IN/VDC; MA OUT | EA |
| 7 | BARRIER SWITCH ISOLATOR | P/N: 10043273-001; BARRIER, IS SWITH ISOLATOR | EA |
| 8 | CONVERTER | P/N: 10065449-001; ISOL-GALV 1IN ISmA/ 2OUT S.A. | EA |
| 9 | CONN-PLG, 10M, INLINE, CRIMP | P/N: 0001-0619-61; | EA |
| 10 | CONN-PLG, 10F, INLINE, CRIMP | P/N: 0000-9670-94; | EA |
| 11 | BELT | P/N: 983606-005 | PCS |
| 12 | TIMING PULLEY – SHAFT | P/N: 40222906-001 | EA |
| 13 | TIMING PULLEY – ENCODER | P/N: 40222907-001 | EA |
| 14 | NYLON BALL BEARING | P/N: 985833-002 | EA |
| 15 | BALL BEARING | P/N: 985835-001 | EA |
| 16 | SHAFT | P/N: 40222903-001 | EA |
| 17 | HIGH LOAD BEARING BODY, ENCODER | P/N: 4022902-001 | EA |
| Driller Cabin | |||
| 1 | Joystick for Elmagco | P/N: 55858, CONTROL, DRILLERS F/ BAYLOR BRAKE CONTROL MODEL# 5250HS | EA |
| 2 | Gauge Analog, Hydralic supply disk brake | P/N: 10547487-001, Gauge Analog, for Hydralic supply, disk brake | EA |
| 3 | Meter Analog Emmergency caliper | P/N: 10547488-001, Gauge Analog, for Emmergency caliper. | EA |
| 4 | Meter analog ODS caliper | P/N: 11405053-001, Gauge Analog for ODS service caliper | EA |
| 5 | Meter analog DS caliper | P/N: 114050052-001, Gauge Analog for DS service caliper | EA |
| 6 | Meter analog DS supply pressure | P/N: 11405050-001, Gauge Analog for DS supply pressure | EA |
| 7 | Meter analog ODS supply pressure | P/N: 11405051-001, Gauge Analog for ODS supply pressure | EA |
| 8 | Meter analog – DW low clutch | P/N: 10547502-001, Gauge Analog for DW low clutch | EA |
| 9 | Meter analog -DW high clutch | P/N: 10547503-001, Gauge Analog for DW High clutch | EA |
| 10 | Meter analog -DW Air supply | P/N: 10547584-001, Gauge Analog for DW Air supply | EA |
| 11 | Meter analog -DW lube oil | P/N: 10547500-001, Gauge Analog for DW Lube oil | EA |
| 12 | Meter analog _DW Brake cooling water | P/N: 10547583-001, GAUGE A…DW BRAKE COOLING WATER | EA |
| 13 | Switch Emergency Park Brake | P/N: 10043725-001, SW-EM STOP -TURN TO RELEASE. | EA |
| 14 | Park Brake Contact Blocks | P/N: 10043698-001, 1 X NC CONTACT BLOCKS | EA |
| 15 | RHEOSTAT | P/N: 10049321-001, RHEOSTAT-1KOHM; DUAL ASSY, RTI | EA |
| 16 | Joystick Cathead Hydralic | P/N: 10043675-001, JOYSTICK-FULL BK TO FULL FWD | EA |
| 17 | Joystick for DISC BRAKE | P/N: 10065542-001, JOYSTICK-CNTR-FWD-STAY LEFT, F/ DISK BRAKE | SET |
| 18 | JOYSTIC HIGH/LOW CLUTCH | P/N: 10065731-001, JOYSTICK-SW 22MM 2POS MOMENTRY, F/ DRILLER CONSOLE. | EA |
| 1 | SWITCH FLOW PADDLE | P/N: 6525-80-0005, SWITCH,FLOW PADDLE,1NPT,F/BAYLOR ELMAGO BRAKE SYSTEM | EA |
| 2 | SWITCH TEMP | P/N: 6525-90-0019, SWITCH,TEMP. CLOSE AT 160 DEG,F/ELMAGO BRAKE COOLING SYSTEM | EA |
| 3 | FIRING BOARD | P/N: 55854, CIRCUIT, FIRING (PC BOARD),F/BAYLOR BRAKE (55854+77) | EA |
| 4 | AUXILAIRY PCB | P/N: 55856-2, PCB, BRAKE WATER ALARM,F/BAYLOR BRAKE CONTROL | EA |
| 5 | BARRIER LOOP | P/N: 6425-06-0003, BARRIER, LOOP F/ BAYLOR BRAKE CONTROL | EA |
| 1 | Temp.Sensor | P/N: 10541947-001, RTD,TEMP RANGE-60 TO +600,4-20 MA,EX,PR ATEX | EA |
| 2 | Pressure Sensor | P/N: 7818889, SWITCH,PRESSURE,F/SCHEMATIC DRAWWORKS D-1500E | EA |
| 3 | Level Sensor | P/N: 10068400-001 SWITCH OIL LEVEL (FLOAT) | EA |
| 4 | 2 POS-Four Way Valve | P/N: 10529054-001, VALVE 2 POSITION/ FOUR WAY-24 VDC, DIRECT;CE/ATEX;SPO | EA |
| 5 | Three Way Solenoid Valve | P/N: 10745078-001, VALVE 3 WAY SOLENOID. | EA |
| 7 | PRESSURE TRANSMITTER | P/N: 10519000-006, PRESS. TRANSMITTER 3000 PSI | EA |
On-Site Drilling Rig Fault Repair Cases
Case 1: Top Drive Control Failure (Varco TDS-11SA)
Rig-23 experienced unresponsive Top Drive movement due to a faulty 2-position selector switch and worn potentiometer. Replacing the NOV-spec selector switch (P/N 30087708-26) and 10K potentiometer (P/N 81736-2) restored full Top Drive control, resuming drilling operations within 2 hours.
Case 2: KEMS System Hookload Signal Loss
The KEMS System on Rig-23 failed to transmit hookload pressure data, halting rig operations. Diagnostics revealed a faulty pressure transmitter (P/N 10044756-001) and barrier converter. Swapping these OEM-matched components restored real-time data transmission and got the rig back online quickly.
Case 3: Driller Cabin Brake Control Malfunction
The Baylor Elmagco disc brake joystick in Rig-23’s Driller Cabin lost responsiveness, creating a safety hazard. Replacing the specialized disc brake joystick (P/N 10065542-001) and emergency park brake switch fixed the control issue, complying with rig safety protocols and resuming normal drilling.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts compatible only with Rig-23 NOV equipment, or other NOV rigs? | These parts are exclusively engineered for Rig-23 NOV systems (SCR House 7268, TDS-11SA Top Drive 145730C, KEMS 43063518). They are calibrated to this rig’s exact specs and may not fit other NOV rig models without modification. |
| Do these electrical parts meet hazardous-area and international safety certifications? | Yes, all critical components hold ATEX, CE, UL, or CSA certifications, including intrinsically safe (I.S.) encoders, explosion-proof (EEXD) switches, and hazard-area HMI screens for offshore/onshore high-risk zones. |
| Can I purchase individual parts from this list, or are they only sold as a full set? | Parts are available for individual subsystem purchase (SCR House, Top Drive, KEMS, Driller Cabin) to target specific repairs; full rig kits are also offered for complete electrical system overhauls. |
Procurement Guidance & Call to Action
For drilling rig maintenance supervisors, reliability engineers, and procurement teams managing Rig-23 NOV equipment, this electrical parts list is the ultimate resource to eliminate downtime, ensure safety compliance, and source guaranteed OEM-compatible components. Avoid the risks of generic aftermarket parts, delayed repairs, and non-compliant components that compromise rig operations — this catalog serves as both a standardized procurement blueprint and technical troubleshooting reference for all critical electrical systems.
Secure these Rig-23 NOV electrical parts to execute fast, durable repairs, maintain uninterrupted drilling operations, and uphold the highest safety and performance standards for your rig. Each component is built to NOV’s factory quality benchmarks, making this the trusted choice for maintaining your critical drilling equipment.
