NOV Speed control handle 789930-00-1800

Introduction

In the oil drilling and industrial fire safety fields, the stable operation of equipment directly determines operational safety, efficiency, and economic benefits. Unexpected equipment failures caused by worn, damaged, or incompatible spare parts often lead to costly downtime, potential safety hazards, and delayed project progress—pain points that plague drilling contractors, oilfield operation teams, industrial maintenance departments, and fire safety management personnel. Our supply of spare parts is specifically tailored to solve these core problems, covering key components for drilling equipment (including drawworks, backup tongs, planetary systems, and hydraulic systems) and industrial fire alarm systems, with full compatibility for designated models and strict adherence to industry authoritative standards such as API (American Petroleum Institute) and NFPA (National Fire Protection Association).

This document focuses on the full range of spare parts we supply, including NOV speed control components, COOPER MEDC EATON fire alarm devices, SL5 series bulbs, NJ200 series drilling mechanical parts, and more. We provide detailed product information, practical technical support, on-site maintenance cases, and procurement guidelines to help you quickly select suitable spare parts, solve technical faults efficiently, and ensure the continuous and stable operation of your equipment. All our spare parts are manufactured in strict accordance with original specifications, undergo rigorous quality inspection before leaving the factory, and are supported by professional after-sales technical services—committed to becoming your reliable long-term partner for spare parts supply.

Core Purpose & Target User Needs

Core Purpose

Our spare parts are designed to perfectly match specific equipment models, including but not limited to NOV drawworks, six-axis controllers, COOPER MEDC EATON fire alarm systems, and NJ200 series drilling machinery (such as backup tongs, planetary gear systems, and hydraulic control systems). The core purpose is to provide high-reliability, direct-replacement spare parts that reduce equipment downtime, lower maintenance costs, ensure operational safety, and extend the service life of the original equipment. Whether it is emergency replacement of worn parts during drilling operations or regular maintenance of fire alarm systems, our products can meet the immediate and long-term needs of equipment operation.

Target User Segmentation & Needs

• Oilfield Drilling Contractors: Need durable, compatible spare parts for NJ200 series drilling machinery (planetary gears, rotation shafts, backup tong components) and NOV drawworks to avoid downtime during high-intensity drilling operations; require quick access to spare parts and professional technical guidance to solve on-site faults.

• Industrial Maintenance Departments: Require reliable spare parts for fire alarm systems (COOPER MEDC EATON BGEB4B6B24DSN7R) and electrical components (SL5 bulbs, fluorescent tubes) to ensure the normal operation of fire safety systems; need clear maintenance guidelines and compatibility confirmation to simplify the maintenance process.

• Equipment Maintenance Service Providers: Need a comprehensive range of spare parts (from control handles to hydraulic motors, from bulbs to connection adapters) to meet the maintenance needs of different customers; focus on product quality, compatibility, and cost-effectiveness to improve service efficiency and customer satisfaction.

• Fire Safety Management Personnel: Require certified, reliable fire alarm spare parts to comply with industrial fire safety standards; need to ensure that fire alarm devices (such as MEDC lamps) can work normally in case of fire to avoid safety accidents.

Product Introduction

We supply a full range of high-quality spare parts covering two major fields: oil drilling equipment and industrial fire alarm systems. All products are manufactured in strict accordance with original equipment specifications, using high-quality materials and advanced production processes, and have passed strict quality control tests to ensure perfect compatibility with original equipment, stable performance, and long service life. Below is a detailed introduction to the main product categories and their key models:

1. Drilling Equipment Spare Parts

1.1 Speed Control Components

This category includes core components for controlling the speed of drilling drawworks, ensuring precise and stable speed adjustment during drilling operations—critical for improving drilling efficiency and ensuring operational safety. Key models include:

• NOV Speed Control Handle 789930-00-1800: Compatible with NOV drawworks and six-axis controllers, designed for precise speed regulation of drawworks, with a sensitive operation response and strong environmental adaptability.

• Drawworks Speed Control Rod VV61LMN-02ZP-A050P024: Matches NOV drawworks, used to transmit speed control signals, with high structural strength and resistance to wear and corrosion.

1.2 NJ200 Series Mechanical Parts

This series of spare parts is specially designed for NJ200 series drilling machinery, covering planetary systems, backup tongs, connection components, and hydraulic components—key parts that ensure the stable operation of drilling equipment. Common models include:

• Planetary System Parts: N151-32 NJ200-01.19 Planetary Gear, N151-31 NJ200-01.18 Outer Spline Sleeve, N151-30 NJ200-01.I7 Planetary Connection Plate, etc., which are core components of the drilling power transmission system, ensuring stable power output and uniform force transmission.

• Backup Tong Components: N154-49 NJ200-02.21 Backup Tong Head Main Body, N154-3 NJ200-02.02 Backup Tong Head Seat, N154-55 NJ200-02.23 Backup Tong Gear Ring, etc., used to fix and clamp drill pipes during drilling operations, with high load-bearing capacity and strong wear resistance.

• Connection & Transmission Parts: N151-119 NJ200-07.02.03 Hollow Bolt, N151-120 NJ200-07.02.01 Longer Adapter, N151-123 Hose 10II -2900 (two ends 24×1.5 flat end), etc., ensuring tight connection between equipment components and smooth transmission of power, oil, or gas.

• Hydraulic Components: N154-22 Hydraulic Motor BM1-100, N151-71 XYQ3C.Z.5 Hand Control Valve, etc., providing power support for hydraulic systems of drilling equipment, with stable performance and low energy consumption.

2. Fire Alarm & Electrical Spare Parts

This category includes spare parts for industrial fire alarm systems and electrical indication components, which are essential for ensuring the normal operation of fire safety systems and timely warning of fire hazards. Key models include:

• COOPER MEDC EATON STATION FIRE ALARM BGEB4B6B24DSN7R: A core component of industrial fire alarm systems, used to detect and transmit fire alarm signals, with high sensitivity, strong anti-interference ability, and compliance with NFPA 72 fire alarm system standards.

• Indicator Lamps & Bulbs: SL5 BULB ASSY 30V 5W YELLOW ESA0322, SL5 BULB ASSY 30V 5W GREEN ESA0324, LAMP INDICATION YELLOW PX99900092, LAMP INDICATION GREEN PX99900083, MEDC LAMP SM87LU1 24VDC, PX99901119 24VDC FLUORESCENT TUBE, etc. These products are used for status indication of drilling equipment and fire alarm systems, with long service life, stable brightness, and compliance with industrial electrical safety standards (IEC 60598).

Function Description

1. Drilling Equipment Spare Parts Functions

• Speed Control Function: NOV speed control handle and speed control rod enable precise adjustment of drawworks speed, adapting to different drilling depths and geological conditions, ensuring smooth lifting and lowering of drill pipes, and reducing the risk of drill pipe damage.

• Power Transmission Function: Planetary gears, outer spline sleeves, and rotation shafts transmit power from the main engine to each working part of the drilling equipment, ensuring stable and efficient operation of the equipment, with high transmission efficiency and low energy loss.

• Clamping & Fixing Function: Backup tong components (tong head main body, gear ring, etc.) clamp and fix drill pipes tightly during drilling, tripping, and well completion operations, preventing drill pipe slipping and ensuring operational safety.

• Connection & Sealing Function: Hollow bolts, adapters, hoses, and other components ensure tight connection between equipment parts, prevent leakage of oil, gas, or drilling fluid, and maintain the normal operation of the hydraulic and lubrication systems.

• Hydraulic Control Function: Hydraulic motors and hand control valves control the flow and pressure of hydraulic oil, driving the movement of hydraulic components (such as backup tongs), with sensitive control and stable performance.

2. Fire Alarm & Electrical Spare Parts Functions

• Fire Alarm Function: COOPER MEDC EATON fire alarm BGEB4B6B24DSN7R detects fire signals (such as smoke, high temperature) in real time, transmits alarm signals to the fire control center quickly, and triggers corresponding fire-fighting measures to minimize fire losses.

• Status Indication Function: Yellow and green indicator lamps, fluorescent tubes clearly display the working status of equipment (such as normal operation, fault, alarm), allowing maintenance personnel to quickly identify equipment problems and handle them in a timely manner.

• Electrical Safety Function: All electrical spare parts comply with industrial electrical safety standards, with good insulation performance, preventing electrical faults (such as short circuits) and ensuring the safety of equipment and operators.

Structural Features

1. Drilling Equipment Spare Parts Structural Features

• High Structural Strength: Planetary gears, rotation shafts, backup tong components, and other parts are made of high-strength alloy steel,经过 heat treatment (such as quenching and tempering), which improves their hardness and wear resistance, and can withstand high load, high vibration, and other harsh working conditions during drilling operations.

• Precise Machining: All parts are machined with high-precision equipment, with strict control of dimensional accuracy and surface roughness, ensuring perfect matching with original equipment, no installation gaps, and stable operation after installation.

• Corrosion & Wear Resistance: Key parts are treated with anti-corrosion and anti-wear coatings (such as chrome plating, zinc plating), which can resist corrosion of drilling fluid, moisture, and other media, and reduce wear caused by long-term friction, extending the service life of parts.

• Easy Installation: The structural design is optimized according to the original equipment, with simple and reasonable installation steps, no need to modify the original equipment, and maintenance personnel can complete the replacement and installation quickly with common tools.

• Sealing Performance: Hoses, adapters, and other connection parts adopt high-quality sealing rings, with good sealing performance, preventing leakage of oil, gas, or drilling fluid, and ensuring the normal operation of the hydraulic and lubrication systems.

2. Fire Alarm & Electrical Spare Parts Structural Features

• Compact Structure: COOPER MEDC EATON fire alarm and indicator lamps have a compact structural design, small volume, and easy installation in narrow spaces (such as drilling platforms, industrial workshops).

• High Reliability: The internal components are made of high-quality electronic materials, with stable performance, strong anti-interference ability, and can work normally in harsh industrial environments (such as high temperature, high humidity, dust).

• Long Service Life: Bulbs and fluorescent tubes adopt energy-saving and durable light sources, with long service life (up to 50,000 hours for some models), reducing the frequency of replacement and maintenance costs.

• Clear Indication: Indicator lamps adopt high-brightness LED or incandescent light sources, with clear and eye-catching indication, which can be clearly seen even in strong light environments.

Applicable Working Conditions

1. Drilling Equipment Spare Parts Applicable Working Conditions

Our drilling equipment spare parts are specially designed for harsh oil drilling working conditions, with strong environmental adaptability, and are applicable to the following scenarios:

• Onshore & Offshore Drilling Platforms: Can adapt to high humidity, salt spray, strong wind, and other marine environments (offshore) and high temperature, drought, dust, and other onshore environments, ensuring stable operation of equipment.

• High-Load Drilling Operations: Suitable for high-intensity, long-time drilling operations (such as deep well drilling, ultra-deep well drilling), with strong load-bearing capacity and fatigue resistance, and can withstand long-term high vibration and impact.

• Complex Geological Conditions: Adapt to different geological conditions (such as hard rock, soft soil, sandstone), and the speed control components and power transmission components can adjust according to the drilling resistance to ensure smooth drilling.

• Extreme Temperature Environments: Can work normally in extreme temperature ranges (-40℃ to 80℃), with good low-temperature resistance and high-temperature stability, no performance degradation due to temperature changes.

2. Fire Alarm & Electrical Spare Parts Applicable Working Conditions

• Industrial Workshops & Drilling Sites: Suitable for industrial workshops, drilling platforms, oil depots, and other places with high fire risk, with strong anti-interference ability to dust, oil fume, and other pollutants.

• High-Temperature & High-Humidity Environments: Can work normally in high-temperature (up to 60℃) and high-humidity (relative humidity up to 95%) environments, with good moisture-proof and high-temperature resistance.

• Long-Term Continuous Operation: Designed for 24/7 continuous operation, with stable performance and low failure rate, ensuring the normal operation of fire alarm systems and equipment status indication.

Maintenance & Care Suggestions

Scientific maintenance and care can effectively extend the service life of spare parts, reduce failure rates, and ensure the stable operation of equipment. Below are practical maintenance suggestions for different types of spare parts, based on years of on-site maintenance experience and industry standards:

1. Daily Maintenance (Daily Inspection)

• Drilling Mechanical Parts: Check the tightness of bolts, adapters, and other connection parts daily; observe whether there is oil leakage, abnormal noise, or vibration in planetary gears, rotation shafts, and other moving parts; clean the surface of parts to remove dust, drilling fluid, and other pollutants.

• Speed Control Components: Check the flexibility of the NOV speed control handle daily; ensure that the speed control rod is not bent, deformed, or stuck; clean the connection part of the handle and controller to avoid poor contact.

• Fire Alarm & Electrical Parts: Check whether the indicator lamps and fluorescent tubes are normally lit; clean the surface of the COOPER MEDC EATON fire alarm to remove dust and oil stains; check the connection of the power line to avoid loose contact or short circuit.

2. Regular Maintenance (Weekly/Monthly/Quarterly)

• Drilling Mechanical Parts: Add lubricating oil (or grease) to planetary gears, outer spline sleeves, rotation shafts, and other moving parts every week to ensure smooth operation and reduce wear; check the wear condition of backup tong components and hydraulic motor every month, and replace worn parts in time; inspect the corrosion condition of parts every quarter, and re-spray anti-corrosion coating if necessary.

• Hoses & Sealing Parts: Check the surface of hoses for cracks, aging, or damage every month; replace aging sealing rings to prevent leakage; avoid bending or squeezing hoses to prevent internal blockage or damage.

• Fire Alarm & Electrical Parts: Test the sensitivity of the COOPER MEDC EATON fire alarm every month; replace bulbs or fluorescent tubes that are dim or burned out; check the insulation performance of electrical parts every quarter to prevent electrical faults.

3. Long-Term Storage Maintenance

• Store spare parts in a dry, ventilated, and clean warehouse, away from moisture, dust, and corrosive media; avoid direct sunlight and high-temperature environments.

• Coat metal parts (such as bolts, rotation shafts) with anti-rust oil before storage; wrap hoses and electrical parts with waterproof and dustproof materials to prevent damage.

• Regularly check stored spare parts (every 3 months), clean and maintain them, and ensure that they are in good condition and can be used at any time.

4. Maintenance Notes

• Maintenance personnel must receive professional training, be familiar with the structure and performance of spare parts, and strictly follow the maintenance procedures to avoid improper operation causing damage to parts or equipment.

• Use special tools and matching lubricating oil, sealing rings, and other auxiliary materials during maintenance to ensure maintenance quality.

• Record the maintenance content, time, and results in detail, establish a maintenance file, and track the use and maintenance status of spare parts to optimize the maintenance plan.

• When replacing spare parts, ensure that the new parts are compatible with the original equipment model, and check the quality of the new parts before installation to avoid using unqualified products.

Drawworks speed control rod VV61LMN-02ZP-A050P024

NOV Speed control handle 789930-00-1800

COOPER MEDC EATON STATION FIRE ALARM BGEB4B6B24DSN7R

SL5 BULB ASSY 30V 5W YELLOW ESA0322

SL5 BULB ASSY 30V 5W GREEN ESA0324

LAMP INDICATION YELLOW PX99900092

LAMP INDICATION GREEN PX99900083

MEDC LAMP SM87LU1 24VDC

PX99901119 24VDC FLUORESCENT TUBE

N151-119 NJ200-07.02.03 Hollow bolt

N151-120 NJ200-07.02.01 Longer adapter

N151-121 NJ200-07.02.02 Short adapter

N151-71 XYQ3C.Z.5 Hand control valve

N151-68 NJ200-07.01A Transition connect plate

N151-122 NJ200-07.03 Connection adapter

N151-123 Hose 10II -2900(two ends 24×1.5 flat end)

N154-57 NJ200-07.03 Connection adapter

N154-41 NJ200-02.20 Planetary bracket gear

N154-55 NJ200-02.23 Backup tong gear ring

N151-30 NJ200-01.I7 Planetary connection plate

N151-28.1 NJ200-0L16 Rotation shaft

N151-31 NJ200-01.18 Outer spline sleeve

N151-32 NJ200-01.19 Planetary gear

N151-93 NJ200-01.52 Planetary connection plate

N154-49 NJ200-02.21 Backup tong head main body

N154-3 NJ200-02.02 Backup tong head seat

N154-9 NJ200-02.07 Test strength arm

N154-44 NJ200-01.51 Baffle

N154-46 NJ200-01.53 Reverse direction retainer block

N151-5 NJ200-01.05A Planetary claw

N151-8 NJ200-01.07B Planetary claw retainer block

N151-6 NJ200-01.06A Die

N151-4 NJ200-01.04A Die

N151-2 NJ200-01.02A Die

N154-33 NJ200-02.17 Connection plate

N154-38 NJ200-02.19 Backup small gear

N154-36 NJ200-02.18 Oil motor seat

N154-22 Hydraulic motor BM1-100

N154-5 NJ200-02.04 Rotation shaft

N154-7 NJ200-02.05 Roller

N154-8 NJ200-02.06 Backup tong unit seat

N156-9 NJ200-03.05 Support gear

N156-10 NJ200-03.06 Support gear seat

N156-8 NJ200-03.04 Gear shaft

N156-5 NJ2OO-O3.03 Screw rod

N156-4 NJ200-03.02 Hand wheel nut

N156-1 NJ200-03.01 Bottom seat

N157-4 NJ200-06.02 Bearing over

N157-7 NJ200-06.05 Roller shaft

N157-5 NJ200-06.03 Upper roller

On-Site Fault Maintenance Cases

Below are 4 real on-site fault maintenance cases, based on our actual service experience for oilfield and industrial customers. These cases detail common faults, causes, and solutions, helping you quickly identify and solve similar problems, reduce downtime, and improve maintenance efficiency:

Case 1: Drawworks Speed Control Failure

Site: An onshore oilfield drilling platform, using NOV drawworks.

Fault Phenomenon: The drawworks speed cannot be adjusted normally, and the speed control handle is stuck, resulting in the drill pipe being unable to be lifted and lowered smoothly, and the drilling operation being forced to stop.

Cause Analysis: After on-site inspection, it was found that the NOV Speed Control Handle 789930-00-1800 was worn seriously due to long-term use in a dusty environment, and the internal mechanical structure was stuck, leading to insensitive operation.

Solution: Replace the worn speed control handle with our new NOV Speed Control Handle 789930-00-1800 (compatible with the original drawworks model); clean the connection part of the handle and controller, add appropriate lubricating oil, and test the speed control function. After replacement, the drawworks speed can be adjusted precisely, and the drilling operation resumes normally.

Experience Summary: Regular cleaning and lubrication of the speed control handle can effectively reduce wear and avoid stuck faults; it is recommended to replace the speed control handle every 12-18 months according to the use frequency.

Case 2: Backup Tong Clamping Failure

Site: A deep well drilling site, using NJ200 series backup tongs.

Fault Phenomenon: The backup tong cannot clamp the drill pipe tightly, and the drill pipe slips during tripping operations, posing a safety hazard.

Cause Analysis: Inspection found that the N154-55 NJ200-02.23 Backup Tong Gear Ring was worn seriously, the tooth surface was damaged, and the power transmission was unstable, leading to insufficient clamping force.

Solution: Replace the worn backup tong gear ring with our new N154-55 NJ200-02.23 Backup Tong Gear Ring; check and adjust the meshing gap between the gear ring and other gears, and test the clamping function. After replacement, the backup tong can clamp the drill pipe tightly, and the operation is safe and stable.

Experience Summary: Regularly check the wear condition of the backup tong gear ring, especially after high-load operations; replace worn parts in time to avoid safety accidents caused by insufficient clamping force.

Case 3: Fire Alarm False Alarm

Site: An industrial oil depot, using COOPER MEDC EATON STATION FIRE ALARM BGEB4B6B24DSN7R.

Fault Phenomenon: The fire alarm frequently sends false alarm signals, affecting the normal work of the fire control personnel and possibly leading to ignoring real fire alarms.

Cause Analysis: On-site inspection found that the surface of the fire alarm was covered with a lot of oil dust, which blocked the sensor, leading to false alarms; at the same time, the internal lamp component was aging, affecting the normal detection performance.

Solution: Clean the surface of the fire alarm to remove oil dust and unblock the sensor; replace the aging internal lamp component with our new MEDC LAMP SM87LU1 24VDC; test the alarm function, and the false alarm fault is eliminated.

Experience Summary: Regular cleaning of the fire alarm sensor is crucial to avoid false alarms; replace aging electrical components in time to ensure the normal detection performance of the fire alarm.

Case 4: Equipment Status Indication Failure

Site: A drilling equipment maintenance workshop, NJ200 series drilling machinery.

Fault Phenomenon: The yellow indicator lamp (LAMP INDICATION YELLOW PX99900092) of the drilling equipment is not lit, making it impossible to judge the working status of the equipment, and maintenance personnel cannot quickly identify potential faults.

Cause Analysis: Inspection found that the indicator lamp was burned out due to long-term continuous operation, and the power line connection was normal.

Solution: Replace the burned-out indicator lamp with our new LAMP INDICATION YELLOW PX99900092; check the power line connection again to ensure tight contact. After replacement, the indicator lamp is normally lit, and the equipment status can be clearly observed.

Experience Summary: Regularly check the working status of indicator lamps and replace burned-out bulbs in time to ensure that the equipment status is clearly indicated, which is conducive to timely maintenance.

Procurement & Technical Reference Standards

1. Procurement Reference Standards

To help you purchase suitable spare parts accurately and efficiently, we provide the following procurement reference standards, ensuring that the purchased parts are compatible with the original equipment and meet the use requirements:

• Model Matching Standard: Confirm the original equipment model and the part number of the spare part to be replaced (such as NJ200 series parts, NOV 789930-00-1800), and our spare parts are 100% compatible with the original model, no need to modify the equipment.

• Quality Standard: All spare parts comply with international and industry standards, such as API (for drilling parts), NFPA (for fire alarm parts), IEC (for electrical parts), and pass ISO 9001 quality system certification, with strict quality inspection reports.

• Material Standard: Drilling mechanical parts are made of high-strength alloy steel (meeting ASTM A105 standard), electrical parts are made of high-quality electronic materials, and fire alarm parts are made of flame-retardant materials (meeting UL 94 standard), ensuring durability and safety.

• Compatibility Verification: Before procurement, our professional technical team can help you verify the compatibility of spare parts with your equipment, providing detailed product specifications and installation guidelines to avoid procurement errors.

2. Technical Reference Standards

To help you solve technical problems during use and maintenance, we provide the following technical reference standards, based on industry experience and equipment manufacturer requirements:

• Installation Standard: All spare parts are installed in accordance with the original equipment installation manual, with detailed installation steps and precautions provided by us; for complex parts (such as hydraulic motors, fire alarms), we can provide on-site technical guidance.

• Fault Diagnosis Standard: Refer to the fault maintenance cases and FAQ provided in this document, combined with the equipment fault phenomenon (such as abnormal noise, failure to work), quickly identify the fault cause and take corresponding solutions.

• Maintenance Standard: Follow the maintenance and care suggestions provided in this document, combined with the equipment operation frequency and working environment, formulate a reasonable maintenance plan, and adhere to the "prevention first, maintenance combined" principle to extend the service life of parts.

• Technical Support: Our professional technical team has more than 10 years of experience in drilling equipment and fire alarm system maintenance, providing 24/7 technical consultation services to answer your questions about product use, fault diagnosis, and maintenance.

FAQ (Frequently Asked Questions)

Procurement Guidance

As a professional supplier of drilling and fire alarm spare parts, we are committed to providing you with high-quality, compatible, and cost-effective products, as well as comprehensive technical support and after-sales service. Whether you need emergency replacement of spare parts to resume equipment operation, or regular procurement of maintenance spare parts to ensure long-term stable operation of equipment, we can meet your needs.

Our spare parts have the following advantages: 100% compatibility with original equipment, strict compliance with industry standards, high-quality materials and precise machining, professional technical support, and perfect after-sales service. We have a complete supply chain and sufficient inventory, which can quickly respond to your procurement needs. We can provide customized procurement solutions according to your equipment model, use frequency, and maintenance plan, helping you reduce procurement costs and improve maintenance efficiency.

If you need to purchase any of the spare parts mentioned in this document (such as NOV Speed Control Handle 789930-00-1800, COOPER MEDC EATON Fire Alarm BGEB4B6B24DSN7R, NJ200 series parts, SL5 bulbs, etc.), or if you have questions about product compatibility, technical parameters, maintenance, or procurement, please contact us at any time. Our professional team will provide you with personalized services, help you select the most suitable spare parts, and solve your technical and procurement problems, creating more value for your operation.

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Emeil: [email protected]   whatsapp: +86 15275658619

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