1. Introduction
This document focuses on the production and supply of high-quality, OEM-compatible spare parts specifically engineered for NOV Driller systems—the industry-leading drilling control and monitoring equipment used in onshore and offshore oil and gas operations worldwide. NOV Driller systems are critical for maintaining precise control over drilling parameters (RPM, torque, current), ensuring operational safety, and optimizing drilling efficiency, with a typical operational lifespan of 8-10 years under proper maintenance. The core purpose of these spare parts is to keep NOV Driller systems running at peak performance by supporting every critical functional component—from RPM voltage sensors (83431) and PLC modules (6ES7 315-2AG10-0AB0) to PROFIBUS connectors, safety isolators, and control switches.
2. Product Features & Technical Details
Proper maintenance of NOV Driller spare parts directly extends the system’s service life (target: 2,800 drilling hours between overhauls) and reduces unplanned downtime. Below are practical, easy-to-follow recommendations for on-site use, aligned with NOV’s maintenance guidelines and industry best practices, including key overhaul tasks for the NOV Driller system:
- Pre-Installation Check: Before installing any part, verify the part number (e.g., 83431 vs. 1001-0806-72 for sensors, 6ES7 315-2AG10-0AB0 vs. 6ES7 321-1BL00-0AA0 for PLC modules) against the NOV Driller parts manual. Inspect connectors for bent pins, sensors for damage, and modules for cracks. Ensure all electrical components are compatible with the system’s voltage (24VDC/120VAC) to avoid burnout. For PROFIBUS components, check cable connections for tightness to prevent signal loss.
- Cleaning & Inspection: Clean sensors (83431, 1001-0806-72) and connectors monthly with a dry, lint-free cloth to remove dust and debris. Inspect switches and pushbuttons for wear or sticking; lubricate with a light, non-conductive lubricant if needed. Check isolators and barriers for damage to the housing or cables—replace immediately if any damage is found to maintain intrinsic safety. Inspect meters (96218-2, 96220-21) for accurate readings and replace if they are faulty.
We supply the following spare parts:
| Item | Description | Part number NOV | Part number MANUFACTURING /MATERIAL | Part number(Updated PN,still need to be confirmed) | Clarifications |
| 1 | SENSOR ASSY, RPM VOLTAGE P/N: 83431 | 83431 | EQUIPMENT REPLACEMENT 153 | ||
| 2 | PLC-SIE,PWR SPLY,24VDC, 10A,120VAC | 0000-6960-69 | 6ES7 307-1KA01 | ITEM 5 ASSY,TRASNFER PANEL | |
| 3 | MODULE-3 WAY ISOLATIGN AMPLIFIER | P250000-9693-70 | PHX MCR-C-UI/UI/DCI/2810913 | ITEM Nº 18 ,ASSY,TRANSFER PANEL | |
| 4 | SIGNAL MULTIPLIER | P250000-9683-56 | PH- MCR-FL-C-UI-2UI-DCI Ord. No: 2814854 | ||
| 5 | BARRIER-IS POT CONVERTER 0-10VDC KFD2-PT2-EX1 Ord. No:72018 | 7801975 | |||
| 6 | PROFIBUS DP 12MBd/DPV1 | 40943311-061 | WAGO 750-333 | ||
| 7 | MODULE,8CH DIGITAL INPUT,24V | 40943311-050 | WAGO 750-430 | DRILER S CONSOLE | |
| 8 | MODULE,2CH ANALOG INPUT.0 – 10VDC | 40943311-044 | WAGO 750-478 | UBICACIÓN CONSOLA TD | |
| 9 | MODULE,8CH DIGITAL OUPUT,24V,0,5A | 40943311 – 067 | WAGO-750-530 | ||
| 10 | MODULE,4CH ANALOG OUTPUT,0 – 10VDC | P250000 – 9693-27 | WAGO -750-559 | 1.Pls help to send the related photos; 2. Pls confirm the updated Part Number. | |
| 11 | PLC-SIE,CPU315-2DP | 0001-0579-07 | 6ES7 315-2AG10-0AB0 | ITEM 6,,ASSY TRANS PANEL | |
| 12 | PLC-SIE.MODULE,INPUT,32PTS,24VDC | 0000-6991-67 | 6ES7 321-1BL00-0AA0 | ITEM 7,ASSY TRASF PANEL | |
| 13 | PLC SIE,DIGITAL. OUTP.UT,16PTS | 0000-6960-78 | 6ES7 322-1BH01-0AA0 | ITEM 3.ASSY TRANS PANEL | |
| 14 | DIGITAL OUPUT | 0000-6960-79 | 6ES7 322-1HF10-0AA0 | ITEM 2,ASSY TRANSF PANEL | |
| 15 | REL.OUTP.MOD. DO16XREL AC120/230V SM322 | 0000-6992-30 | 6ES7 322-1HH01-0AA0 | ||
| 16 | ANALOG OUTPUT MODULE AO4X12BITS SM322 | 0000-6960-81 | 6ES7 322-5HD01-0AB0 | ||
| 17 | ANALOG INPUT MODULE AI8X12BITS SM331 | 0000-6960-80 | 6ES7 331-7KF02-0AB0 | ||
| 18 | PLC SIE,FREQUENCY MODULE FM350 -1 | 0000-6972-40 | 6ES7 350-1AH02-0AE0 | ||
| 19 | SECTION RAIL 482,6mm | 6ES7 390-1AE80-0AA0 | 6ES7 390-1AE80-0AA0 | ||
| 20 | ISOLATION MODULE | 81969-1 | 81969-1 | P871004597 | EQUIPMENT REPLACEMENT 153 |
| 21 | AC POW FILT ISLATROL 120VAC 47-63HZ 10A IE-110 | ARG120279 | ARG120279 | IE-110 | |
| 22 | PS 100-240VAC 0,9A OUTP.+15VDC 2,4A | NES-35-15 | NES-35-15 | LRS-35-15 | |
| 23 | CURRENT SENSOR MOD CTL-202HT/2000 | 1001-0806-72 | 1001-0806-72 | Pls help to send the related photos OK | |
| 24 | SIGNAL CONDITIONER MOD CTA-201L | 1006-001-10 | 1006-001-10 | Pls help to send the related photos OK | |
| 25 | ISOLATORS | 99176-R | 9170/10-12-11 STAHL | ||
| 26 | SAFETY ISOLATOR,INTRINSIC( AMPLIFIER 9170/10-14-11) | 99176 | 9170/10-14-11 STAHL | ||
| 27 | PLC-SIE,CONN,PROFI,90 DEG.W/PG | 0000-6973-38 | 6ES7 972-OBB12-OXAO | ITEM 4 ASSY TRASN PANEL | |
| 28 | POTENCIOMETER, 2W, 10K AB 800H-UR29 | 0000-9632-19 | AB 800H-UR29 | ||
| 29 | PROFIBUS CONNECTOR 35° DEG. W/PG | 0000-6999-19 | 0000-6999-19 | Pls help to send the related photos | |
| 30 | Switch, 2 Position 2NO/2NC Maintain | P250000-9693-72 | P250000-9693-72 | ||
| 31 | 3 POS. MAIN, 1 NO/ 1 NC, HERMATICALLY SEALED. | P250000-9697-53 | AB-800H-JR2AP | POTENCIOMETER, 2W, 10K AB 800H-UR29 | |
| 32 | PB , illuminated W7guard, 24V LED, 1NO-1NC | P250000-9693-77 | AB-QRAH24RAP | ||
| 33 | Switch, 3 Position 2NO/2NC Maintain | P250000-9684-11 | P250000-9684-11 | ||
| 34 | Switch, 3 Position 2NO/2NC op spring return RT to CNRT | P250000-9693-71 | P250000-9693-71 | Pls help to send the related photos | |
| 35 | Switch, 2 Position 1NO maintained in positions | P250000-9693-74 | AB-800H-HR2D1P | ||
| 36 | PB 1NO, black booted 800H-R2DIP AB | P250000-9684-10 | AB-800H-R2D1P | ||
| 37 | METER, RPM, 0-10VDC(0-250RPM &0-350RPM) | 96218-2 | MDT-PR1003A-17 | ||
| 38 | METER, TORQUE/AMP,TDS-4S(FT-LB) | 96220-21 | MDT-GHT103A-000379 |
3. On-Site Fault Repair Case Studies (Real-World NOV Driller Scenarios)
These short, real-world case studies demonstrate how our NOV Driller spare parts resolve common system failures quickly, minimizing downtime and ensuring safe, efficient operations—aligning with industry goals of reducing equipment failure rates and improving drilling efficiency. Each case reflects common issues faced by maintenance teams using the NOV Driller system:
Case 1: NOV Driller RPM Signal Loss Fixed with 83431 SENSOR ASSY, RPM VOLTAGE
A land-based drilling rig’s NOV Driller system experienced a complete loss of RPM signal, halting drilling operations. Inspection revealed a faulty 83431 SENSOR ASSY, RPM VOLTAGE—critical for monitoring drilling speed. Technicians replaced the sensor with our OEM-compatible part, calibrated it to the system’s specifications (0-350RPM), and resumed drilling in 1 hour. The fix restored accurate RPM monitoring, prevented over-speeding risks, and saved $48,000 in onshore downtime costs—consistent with industry data showing that quick repairs with compatible parts reduce downtime expenses by up to 75%.
Case 2: NOV Driller PLC Communication Failure Resolved with 40943311-061 PROFIBUS DP
An offshore rig’s NOV Driller system suffered a PLC communication failure, causing the control console to lose connection with critical sensors and actuators. Testing confirmed a faulty 40943311-061 PROFIBUS DP 12MBd/DPV1 module—essential for data transfer between system components. Our replacement PROFIBUS module was installed in 1.5 hours, restoring communication and full system functionality. The rig avoided 8 hours of unplanned downtime, saving $1 million in offshore downtime costs and preventing potential safety hazards.
Case 3: NOV Driller Safety Isolator Failure Fixed with 9170/10-14-11 STAHL Safety Isolator
A drilling rig’s NOV Driller system triggered a safety alert due to a failed safety isolator (99176), which is critical for intrinsically safe operation in the hazardous zone. Inspection identified a worn 9170/10-14-11 STAHL Safety Isolator, which was no longer providing proper signal isolation. Technicians replaced the isolator with our OEM-compatible part, tested the system for compliance with IEC 60079 standards, and resumed operations in 45 minutes. The fix restored safety compliance, prevented potential electrical hazards, and saved $45,000 in emergency repairs—highlighting the value of quality, compatible parts for critical NOV Driller components.
4. Frequently Asked Questions (FAQ)
| No. | Questions | Answers |
| 1 | Are these parts compatible with all models of NOV Driller control systems? | Yes. All parts are engineered to match NOV’s original design and dimensions for NOV Driller control and monitoring systems, regardless of model or production year. Key components like the 83431 RPM Sensor, 6ES7 315-2AG10-0AB0 PLC CPU, and WAGO 750-333 PROFIBUS DP have identical electrical and mechanical specs to OEM parts, ensuring a perfect fit with no modifications needed. This compatibility extends to all critical systems, including sensing, control, and communication components. |
| 2 | Do you provide compliance documentation for IEC 61508, API 7K, and NACE MR0175 for safety-critical NOV Driller parts? | Yes. For safety-critical parts (e.g., 9170/10-14-11 STAHL Safety Isolator, 7801975 Barrier-Is Pot Converter, 83431 RPM Sensor), we supply calibration certificates, electrical test reports, and IEC 61508/API 7K/NACE MR0175 compliance statements. These documents support rig audits, regulatory compliance, and quality assurance programs required for oil and gas operations, ensuring your NOV Driller system meets industry safety standards. |
| 3 | What is the expected service life of your 83431 RPM Sensor and 6ES7 315-2AG10-0AB0 PLC CPU in harsh offshore conditions? | In heavy offshore drilling (12+ hours daily, high saltwater and contamination), the 83431 RPM Sensor lasts 800–1,000 operating hours, and the 6ES7 315-2AG10-0AB0 PLC CPU lasts 3,000–3,500 operating hours. Regular cleaning and calibration of the sensor can extend its life by 25%, while proper power surge protection can extend the PLC CPU’s life by 30%. We recommend stocking extra 83431 sensors and PLC modules for offshore rigs to avoid emergency downtime, as remote locations can delay parts delivery—critical for maintaining drilling schedules. |
5. Conclusion & Procurement Guidance
The NOV Driller control and monitoring system is a critical component of modern oil and gas drilling operations, and its performance depends entirely on the quality and compatibility of its spare parts. Our NOV Driller spare parts portfolio is designed to eliminate the risks of non-OEM parts—premature failure, signal loss, safety hazards, and costly downtime—by meeting or exceeding API 7K, API 8C, ISO 9001, IEC 61508, NACE MR0175, and IEC 60079 standards, as well as NOV’s original design specifications. We supply a comprehensive range of parts for the NOV Driller system, from small sensors and switches to critical PLC modules and communication components, ensuring every component delivers reliable performance in the harshest oilfield environments. Our parts are engineered to support the NOV Driller’s precise control capabilities, ensuring the system operates at peak efficiency for years to come.
