Core Application & Target User Requirements
This added parts catalog is specifically tailored for the FKQ1280-8 Surface-Mounted Blowout Preventer (BOP) Control System, a critical safety-critical device in oil and gas drilling operations. It supplements key components that support the system's valve control, rotational transmission, power supply, and sealing functions. Targeted at drilling site maintenance engineers, BOP system supervisors, and oilfield equipment technicians, this catalog addresses their urgent needs for reliable replacement parts in harsh drilling environments—characterized by high pressure, drilling fluid contamination, salt mist (offshore operations), and continuous vibration. These professionals require parts with precise dimensional compatibility, wear-resistant materials, and stable performance to avoid system downtime or safety hazards caused by component failure. The core purpose of this catalog is to provide a structured, application-specific supplement to the original parts list, integrating procurement guidance with in-depth technical troubleshooting support, ensuring all added components fully match the FKQ1280-8 system's specifications while solving common wear and failure issues, thus safeguarding the continuous and safe operation of drilling activities.
1. Valve Core & Valve Group Critical Components
These components are core functional parts of the FKQ1280-8 system's valve groups, responsible for regulating fluid flow direction and ensuring precise valve actuation. In drilling operations, key pain points include valve core jamming due to hydraulic oil contamination, bushing wear leading to radial runout, and retaining ring deformation from vibration—all of which can cause valve stuck or inaccurate flow control, directly affecting BOP response speed. These parts feature high-precision machining and wear-resistant materials to maintain stable performance under high-pressure and high-frequency operation.
No. | Part No. | Description | Material | Primary Wear Causes | Damage Prevention Precautions |
1 | 9160902000 | Valve Core, Pos.10 | 316 stainless steel (precision ground, surface roughness Ra≤0.8μm) + FKM coating | Surface wear from contaminated hydraulic oil; jamming from solid particle ingress; coating peeling from high-temperature operation; edge damage from improper installation | Ensure hydraulic oil cleanliness meets NAS 8 standard; replace oil filter every 1000 operating hours; inspect valve core surface for scratches monthly (polish with 800-grit sandpaper if needed); use dedicated installation tools to avoid edge damage; calibrate valve performance every 6 months |
2 | 9160900002 | Bushing, Pos.18 | Copper alloy (CuSn10Pb1, oil-impregnated) + anti-corrosion plating | Inner hole wear from long-term friction with valve core; oil impregnation failure leading to dry friction; corrosion from moisture; deformation from radial force | Check oil impregnation status every 6 months (re-impregnate with lubricating oil if dry); replace bushing if inner hole wear exceeds 0.2mm; ensure proper interference fit during installation; apply anti-rust oil to external surface monthly; avoid over-tightening adjacent fasteners |
3 | 9160900012 | Steel Wire Retaining Ring, Pos.12 | 65Mn spring steel (heat treated, hardness HRC 45-50) + galvanized coating | Deformation from improper installation tools; fatigue breakage from repeated assembly/disassembly; galvanizing peeling leading to corrosion; elastic failure from over-stretching | Use matching retaining ring pliers for installation/removal; avoid over-stretching (stretch range ≤15% of original size); inspect for deformation and corrosion monthly; replace if cracks or elastic loss are found; store in a dry environment away from moisture |
2. Bearing & Rotational Transmission Components
These components are key to the FKQ1280-8 system's rotational motion transmission and load-bearing functions, including various bearings, shafts, and worm wheels that ensure smooth operation of rotating parts. Key pain points in drilling environments include bearing wear from dust/drilling fluid ingress, shaft bending from lateral force, and worm wheel tooth wear from insufficient lubrication—all of which can lead to rotational jamming, increased noise, and reduced transmission efficiency. These parts feature high-precision bearing steel and wear-resistant materials to withstand high loads and harsh operating conditions.
No. | Part No. | Description | Material | Primary Wear Causes | Damage Prevention Precautions |
1 | 4301000070 | Bearing (8113), Pos.29 | GCr15 bearing steel (inner/outer ring) + 20CrMo steel rolling elements + low-noise cage | Rolling element wear from dust ingress; lubricating grease degradation from high temperature; cage damage from impact; inner ring wear from shaft misalignment | Seal the bearing installation position with a dust cover; replace lubricating grease (high-temperature lithium-based) every 800 operating hours; ensure shaft alignment during installation (radial runout ≤0.05mm); avoid impact during handling; inspect for noise and temperature rise monthly |
2 | 4301001370 | Deep Ball Bearing | GCr15SiMn bearing steel + rubber seal ring + high-temperature grease | Same as Bearing (8113); additional seal ring aging leading to grease leakage; corrosion from salt mist (offshore operations) | Same as Bearing (8113); replace seal ring annually; apply anti-corrosion oil to external surface biweekly for offshore operations; store spare bearings in oil-soaked cloth |
3 | 4301001350 | Bearing 48x38x13 | GCr15 bearing steel + metal seal ring + anti-rust coating | Rolling element wear; lubrication failure; corrosion; inner ring slip due to improper interference fit | Ensure proper interference fit (0.01-0.03mm) during installation; replace lubricant every 6 months; inspect for corrosion monthly; avoid overloading during operation; check for inner ring slip by measuring temperature rise |
4 | 4301001360 | Cylindrical Roller Bearing | GCr15 bearing steel + brass cage + high-load lubricant | Roller wear from axial force overload; cage damage from impact; lubricant contamination; corrosion from moisture | Avoid axial force exceeding rated load; use impact-resistant installation tools; replace lubricant every 500 operating hours; clean bearing raceways quarterly; apply anti-rust oil to external surface monthly |
5 | 9160900001 | Rotary Shaft (10x14), Pos.26 | 40Cr alloy steel (quenched & tempered, surface chrome-plated) | Chrome plating peeling from impact; bending deformation from lateral force; thread wear at connection; corrosion from drilling fluid | Avoid applying lateral force during operation; inspect for bending monthly (straighten if radial runout exceeds 0.05mm); touch up chrome plating if peeling is found; apply anti-seize compound to threads before installation; clean immediately if contaminated by drilling fluid |
95 | 9165100004 | Core Shaft | 42CrMo alloy steel (quenched & tempered, precision ground) | Shaft neck wear from bearing friction; bending deformation from overload; keyway wear; corrosion from moisture | Ensure proper bearing fit; inspect shaft neck wear monthly (replace if wear exceeds 0.1mm); check keyway fit quarterly (replace key if loose); apply anti-rust oil to non-contact areas weekly; avoid overload during startup |
104 | 9165100002 | Worm Wheel | Nodular cast iron (QT500-7) + copper alloy (CuSn10) tooth surface | Tooth surface wear from insufficient lubrication; tooth breakage from impact load; corrosion from moisture; backlash increase from long-term operation | Lubricate with gear oil (ISO VG 150) every 400 operating hours; avoid impact loads during operation; inspect tooth surface for wear monthly (replace if tooth thickness reduction exceeds 5%); apply anti-rust oil to non-tooth surfaces; adjust backlash annually |
113 | 9165100003 | Bearing Shim | Spring steel (65Mn) + anti-corrosion plating | Deformation from over-tightening; wear from vibration; corrosion from moisture; breakage from improper handling | Select shims of appropriate thickness to ensure bearing preload; avoid over-tightening fasteners; inspect for deformation and corrosion monthly; handle with care to avoid bending; store flat in a dry environment |
122 | 4371010120 | Steel Ball | GCr15 bearing steel (heat treated, hardness HRC 60-65) + polished surface | Surface wear from friction; corrosion from moisture; chipping from impact; contamination leading to uneven wear | Keep surface clean and dry; apply anti-rust oil when storing; avoid impact during handling; inspect for surface defects monthly; replace if chipping or wear is found |
3. Fastening & Positioning Components
These components secure and position the FKQ1280-8 system's rotating parts, bearings, and other key components, including spring washers, hex washers, screws, and retaining rings. Key pain points in drilling operations include washer deformation from over-tightening, screw thread wear from repeated assembly, and retaining ring elastic failure—all of which can lead to component loosening and system vibration. These parts feature high-strength materials and anti-corrosion treatments to ensure reliable fastening performance in high-vibration environments.
No. | Part No. | Description | Material | Primary Wear Causes | Damage Prevention Precautions |
1 | 4205030060 | Spring Washer, 12, Pos.24 | 65Mn spring steel (heat treated) + galvanized coating | Elastic failure from over-tightening; galvanizing peeling leading to corrosion; deformation from repeated compression; breakage from fatigue | Tighten fasteners to specified torque (avoid over-tightening); inspect elastic performance quarterly (replace if flat); apply anti-rust oil to surface monthly; store in a dry environment; avoid reusing washers after disassembly |
2 | 9165100006 | Hex. Washer | Q235B steel + galvanized coating + rubber anti-slip lining | Coating peeling leading to corrosion; rubber lining aging and cracking; deformation from over-tightening; wear from vibration | Tighten to specified torque; replace rubber lining annually; inspect coating integrity monthly (touch up if peeling); use with spring washers to reduce vibration impact; apply anti-rust oil to steel surface |
3 | 4201030360 | Hidden Hex. Conic End Screw | 35CrMo alloy steel (quenched & tempered) + galvanized coating | Thread wear from repeated assembly; cross-head damage from improper tools; corrosion from moisture; breakage from over-tightening | Use matching hex key tools; tighten to specified torque (15-20 N·m); apply thread locker (Loctite 243) for vibration-prone areas; inspect for corrosion monthly; replace if thread damage or cross-head wear is found |
4 | 9161200011 | Retaining Ring | 65Mn spring steel + anti-corrosion plating | Elastic failure from over-stretching; deformation from improper installation; corrosion from moisture; breakage from fatigue | Use dedicated retaining ring tools; avoid over-stretching; inspect for elastic performance and corrosion monthly; replace if cracks are found; store in a dry, flat position |
5 | 4206021050 | Elastic Retaining Ring for Rod | 65Mn spring steel (heat treated) + galvanized coating | Same as Steel Wire Retaining Ring; additional wear from rod vibration; deformation from improper groove fit | Ensure retaining ring fits tightly in the rod groove; use matching installation tools; inspect for deformation and corrosion monthly; replace if elastic loss or wear is found; avoid rod vibration exceeding 0.5mm amplitude |
4. Seal Components
These components ensure the airtightness and pressure resistance of the FKQ1280-8 system's key joints, including O-rings of various specifications that prevent hydraulic/pneumatic fluid leakage. Key pain points in drilling operations include O-ring aging/hardening from high temperature, swelling deformation from incompatible hydraulic oil, and damage from sharp edges—all of which can lead to system pressure loss and BOP control failure. These parts feature high-temperature-resistant, oil-resistant, and corrosion-resistant materials to adapt to harsh drilling environments.
No. | Part No. | Description | Material | Primary Wear Causes | Damage Prevention Precautions |
1 | 5303101120 | O-RING 15x2.65 | FKM (Viton) rubber (temperature resistance: -20℃ to 200℃, oil-resistant and corrosion-resistant) | Aging and hardening from high temperature; damage from sharp edges of component joints; swelling deformation from incompatible hydraulic oil; extrusion damage from over-compression | Replace annually or if leakage is found; deburr sealing surfaces to remove sharp edges; install with proper compression (compression rate 15-25%); use hydraulic oil compatible with FKM; store in a cool, dry environment away from direct sunlight |
2 | 5303101110 | O-RING | FKM (Viton) rubber (custom specification, oil-resistant and high-pressure-resistant) | Same as O-RING 15x2.65; additional size mismatch leading to improper compression | Same as O-RING 15x2.65; confirm part size matches the installation position before installation; avoid mixing with other O-ring specifications |
3 | 5303110060 | O RING 69.57x1.78 | FKM (Viton) rubber (thin-walled, high-precision, corrosion-resistant) | Aging and cracking from high temperature; extrusion damage from over-compression; damage from foreign particles; deformation from improper storage | Replace annually; install with care to avoid stretching (stretch rate ≤5%); clean sealing surfaces to remove foreign particles; store flat in a dust-free environment; avoid contact with sharp objects during storage |
5. Pump & Power Supply Components
These components are the core power units of the FKQ1280-8 system, responsible for providing stable hydraulic/pneumatic power for BOP actuation, including air pumps, triplex pumps, and pneumatic motor heads. Key pain points in drilling operations include pump plunger wear from contaminated fluid, motor head corrosion from salt mist, and pump seal leakage—all of which can lead to insufficient system pressure and BOP actuation failure. These parts feature high-strength materials and precision machining to ensure continuous and stable power supply.
No. | Part No. | Description | Material | Primary Wear Causes | Damage Prevention Precautions |
1 | 9165200000 | Air Pump (QYB.00F/ QYB-50,165L) | Cast iron pump body (anti-corrosion coating) + 316 stainless steel plunger + FKM seals | Plunger wear from compressed air impurities; seal aging leading to air leakage; pump body corrosion from moisture; valve seat wear from high-frequency operation | Install a 5μm precision air filter at the inlet; drain the filter daily; replace seals every 6 months; clean plunger surface monthly; inspect pump body for corrosion monthly; replace valve seat if air leakage exceeds 5% |
2 | 9160500000 | Triplex Pump QB-21, 80 | 45# steel pump body (quenched & tempered) + 316 stainless steel plunger + ceramic valve core | Plunger wear from contaminated hydraulic oil; valve core wear from high-pressure fluid; seal leakage; pump body vibration leading to bolt loosening | Ensure hydraulic oil cleanliness meets NAS 8 standard; replace oil filter every 1000 operating hours; replace plunger and valve core every 2000 operating hours; tighten mounting bolts quarterly; inspect for vibration and noise monthly |
3 | 5126990461 | Pneumatic Motor Head | Aluminum alloy shell (anodized) + 316 stainless steel rotor + NBR seals | Rotor wear from compressed air impurities; seal aging leading to air leakage; shell corrosion from salt mist; bearing wear from insufficient lubrication | Install an air filter and lubricator at the inlet; lubricate with pneumatic oil every 300 operating hours; replace seals annually; inspect for corrosion monthly (offshore operations: biweekly); replace bearing if noise increases |
4 | 9161100024 | Plunger | 316 stainless steel (polished surface, hardness HRC 28-32) | Surface wear from contaminated fluid; scratches from foreign particles; corrosion from hydraulic oil additives; deformation from lateral force | Keep surface clean and free of scratches; ensure fluid cleanliness meets system requirements; inspect for wear monthly (replace if wear exceeds 0.1mm); apply anti-rust oil when storing; avoid lateral force during installation |
6. Bearing & Spring Mounting Components
These components provide support and positioning for the FKQ1280-8 system's bearings and springs, including bearing pedestals, spring pedestals, and adaptor sleeves that ensure stable operation of bearings and springs. Key pain points in drilling operations include bearing pedestal corrosion from moisture, spring pedestal deformation from spring pressure, and adaptor sleeve wear from interference fit—all of which can lead to bearing jamming and spring failure. These parts feature high-strength materials and anti-corrosion treatments to withstand high loads and harsh environments.
No. | Part No. | Description | Material | Primary Wear Causes | Damage Prevention Precautions |
1 | 9165100001 | Bearing Pedestal | Q235B steel (welded, anti-corrosion powder coating) + copper alloy bushing | Coating peeling leading to corrosion; bushing wear from bearing friction; weld joint fatigue from vibration; deformation from over-tightening | Inspect coating integrity monthly (touch up if peeling); replace bushing if wear exceeds 0.2mm; check weld joints for cracks quarterly; tighten mounting bolts evenly to specified torque; apply anti-rust oil to welding seams |
2 | 9161100008 | Spring Pedestal | 45# steel (quenched & tempered) + anti-corrosion plating | Deformation from spring pressure; corrosion from moisture; wear from spring vibration; thread wear at mounting interface | Ensure spring is properly seated in the pedestal; inspect for deformation monthly; apply anti-rust oil to surface monthly; tighten mounting bolts to specified torque; replace if deformation or thread damage is found |
3 | 9165100011 | Adaptor Sleeve | 45# steel (precision machined) + anti-corrosion plating | Inner/outer surface wear from interference fit; corrosion from moisture; deformation from over-tightening; scratches from improper handling | Ensure proper interference fit during installation; avoid over-tightening; inspect for wear and corrosion monthly; handle with care to avoid scratches; apply anti-rust oil to surface before storage |
4 | 9161100007 | Little Spring | 65Mn spring steel (shot peened, anti-rust oil coating) | Fatigue deformation from repeated compression; corrosion from moisture; breakage from overload; jamming from dust | Inspect elasticity monthly (replace if compression amount deviates by more than 10%); clean dust quarterly; apply anti-rust oil every 2 months; avoid overload during operation; store in a dry environment |
5 | 9161100006 | Big Spring | 50CrVA spring steel (shot peened, anti-corrosion electrophoretic coating) | Same as Little Spring; additional fatigue from high load | Inspect elasticity biweekly; avoid exceeding rated load; clean and apply anti-rust oil monthly; replace every 2 years regardless of condition; store in a flat, dry position |
7. Valve & Control Components
These components are key to regulating the FKQ1280-8 system's fluid pressure and flow direction, including high-pressure ball valves, 3-way valves, and pneumatic motor control valves that ensure precise control of BOP actuation. Key pain points in drilling operations include valve seat wear from high-pressure fluid, valve jamming from contamination, and seal leakage—all of which can lead to system pressure loss and control inaccuracy. These parts feature high-pressure-resistant materials and reliable sealing structures to adapt to harsh drilling conditions.
No. | Part No. | Description | Material | Primary Wear Causes | Damage Prevention Precautions |
1 | 4401000051 | High-Pressure Ball Valve YQ1-25HZ | 316 stainless steel valve body + PTFE valve seat + FKM seals | Valve seat wear from high-pressure fluid; seal aging leading to leakage; valve core jamming from contamination; handle wear from frequent operation | Avoid sudden opening/closing (operate slowly); ensure fluid cleanliness meets NAS 8 standard; replace seals and valve seat annually; lubricate handle pivot monthly; inspect for leakage during pressure testing |
2 | 9161000000 | 3-WAY Valve (23ZS.00D/23ZS-21,25D) | 45# steel valve body + 316 stainless steel spool + FKM seals | Spool wear from contaminated fluid; seal damage from high temperature; valve body corrosion from moisture; spring fatigue leading to switching failure | Replace hydraulic oil filter every 1000 operating hours; clean spool every 800 hours; replace seals and spring annually; inspect valve body for corrosion monthly; calibrate switching performance every 6 months |
3 | 9165100000 | Air Motor Operate Regulation Valve JYSM21-25 | Aluminum alloy valve body + 316 stainless steel spool + NBR seals | Spool jamming from compressed air impurities; seal aging leading to air leakage; valve body corrosion from salt mist; pressure regulating spring fatigue | Install a precision air filter at the inlet; drain the filter daily; replace seals and spring annually; apply anti-corrosion oil to valve body surface monthly; calibrate pressure regulation every 6 months |
8. Sensor Components
This component is responsible for monitoring the FKQ1280-8 system's fluid level, providing real-time data to ensure the system has sufficient working fluid. Key pain points in drilling operations include sensor probe corrosion from drilling fluid, signal interference from electromagnetic fields, and seal leakage—all of which can lead to inaccurate level monitoring and system shutdown. This part features corrosion-resistant materials and reliable sealing to ensure accurate and stable operation in harsh drilling environments.
No. | Part No. | Description | Material | Primary Wear Causes | Damage Prevention Precautions |
1 | 3808000131 | Liquid Level Transducer | 316 stainless steel probe + aluminum alloy housing + FKM seals | Probe corrosion from drilling fluid; seal aging leading to fluid ingress; signal interference from electromagnetic fields; housing damage from impact | Calibrate the transducer every 6 months; replace seals annually; protect the probe from drilling fluid direct impact with a shield; ground the housing to avoid electromagnetic interference; inspect for corrosion and damage monthly |
Procurement & Technical Support Guidance
All added components listed in this catalog are 100% compatible with the FKQ1280-8 Surface-Mounted BOP Control System, manufactured in strict accordance with API (American Petroleum Institute) standards and oilfield high-risk operation safety requirements. Each part undergoes rigorous quality inspection, including dimensional accuracy testing, material performance verification, pressure resistance testing, and fatigue life testing, to ensure reliable operation in high-pressure, high-vibration, and corrosive drilling environments. This catalog serves as a critical supplement to the original parts list, helping you quickly locate and procure the necessary replacement parts for the FKQ1280-8 system, while also providing in-depth technical guidance to solve common wear and failure issues—effectively reducing maintenance downtime and safeguarding drilling operation safety. Whether you need to replace worn parts, stock up on critical safety spares, or seek professional advice on BOP control system maintenance and component selection, our team of oilfield safety equipment experts is ready to provide personalized support. To ensure the continuous and safe operation of your FKQ1280-8 BOP control system, contact us today to discuss your procurement needs and access high-quality, reliable parts and professional technical services.