28 Dec 2025
BPMF FKQ1280-8 BOP Control Spare Parts-1
Core Application & Target User Requirements
This parts catalog is exclusively tailored for the FKQ1280-8 Surface-Mounted Blowout Preventer (BOP) Control System—a critical safety device for oil and gas drilling operations, responsible for rapidly activating BOPs to seal wellbores and prevent blowouts in emergency situations. It is designed to meet the specialized needs of drilling site maintenance engineers, BOP operation supervisors, and hydraulic system technicians—professionals who demand high-reliability, corrosion-resistant, and pressure-resistant components to ensure the control system responds instantly and stably in high-pressure, high-risk drilling environments. Operating amid drilling fluid contamination, salt mist (offshore operations), extreme temperature fluctuations, and continuous vibration, these users prioritize parts with precise dimensional accuracy, durable materials, and easy maintenance. The core purpose of this catalog is to provide a structured, application-specific resource that integrates procurement guidance with technical troubleshooting support, ensuring all components fully match the dimensional and performance standards of the FKQ1280-8 system while solving common wear and failure problems, thus safeguarding drilling operation safety.
1. Actuator Assembly Components
These components form the core executive units of the FKQ1280-8 BOP control system, including cylinders, plungers, and piston rods that convert hydraulic/pneumatic energy into mechanical motion to drive BOP opening and closing. Key pain points in drilling operations include cylinder inner wall wear from contaminated hydraulic oil, piston rod bending deformation from lateral force, and plunger seizure due to insufficient lubrication—all of which can cause BOP actuation delays or failures, posing severe safety risks. These parts feature high-precision machining, wear-resistant coatings, and high-strength materials to ensure rapid and reliable actuation under high-pressure conditions.
No. | Part No. | Description | Material | Primary Wear Causes | Damage Prevention Precautions |
1 | 9165200011 | Air Cylinder | 45# steel cylinder barrel (quenched & tempered, inner wall honed) + 304 stainless steel piston + NBR seal ring + aluminum alloy end cap | Inner wall wear from compressed air impurities; seal aging leading to air leakage; piston jamming from dust ingress; end cap deformation from impact | Install a 5μm precision air filter at the inlet; drain the filter daily; lubricate the piston with high-temperature lithium-based grease every 500 operating hours; inspect for air leakage monthly; replace seals annually; avoid impact on the end cap |
2 | 9165200003 | Plunger Type Cylinder | 40Cr steel cylinder barrel (quenched & tempered) + 316 stainless steel plunger + FKM seal ring + Q235B steel flange | Plunger surface wear from contaminated hydraulic oil; seal damage from high-pressure fatigue; cylinder barrel corrosion from hydraulic oil additives; flange weld joint fatigue | Ensure hydraulic oil cleanliness meets NAS 8 standard; replace hydraulic oil filter every 1000 operating hours; replace seals every 6 months; inspect plunger surface for scratches monthly (polish with 600-grit sandpaper if needed); check flange weld joints for cracks quarterly |
3 | 9163800037 | Piston Rod | 40CrNiMoA alloy steel (quenched & tempered, surface chrome-plated) | Chrome plating peeling from impact; bending deformation from lateral force; thread wear at connection; corrosion from moisture/salt mist | Avoid applying lateral force during operation; inspect for bending monthly (straighten if needed); touch up chrome plating if peeling is found; apply anti-rust oil to non-contact areas weekly; use torque wrench for connection (35-40 N·m) |
4 | 9165200007 | Plunger Rod | 316 stainless steel (polished surface) | Surface scratches from dust/impurities; bending deformation from overload; corrosion from drilling fluid contamination | Keep surface clean and apply anti-corrosion oil daily; avoid overload during operation; inspect for bending monthly; protect the rod with a sleeve in high-dust areas; clean immediately if contaminated by drilling fluid |
5 | 9165200017 | Piston Rod Coupling | 45# steel (quenched & tempered) + 304 stainless steel fasteners | Thread wear from repeated disassembly; coupling deformation from torque overload; corrosion from moisture; keyway wear | Apply thread locker (Loctite 243) during installation; tighten to specified torque (40-45 N·m); inspect keyway fit quarterly; replace if wear exceeds 0.3mm; apply anti-rust oil to surface monthly |
2. Valve Body & Core Control Components
These components are the key control units of the FKQ1280-8 system, including valve bodies, plungers, and pressure caps that regulate hydraulic/pneumatic pressure and control fluid flow direction. Key pain points in drilling operations include valve core jamming from hydraulic oil contamination, valve body corrosion from drilling fluid, and pressure cap leakage from seal aging—all of which can lead to system pressure loss and affect BOP control precision. These parts feature precision-machined internal channels, corrosion-resistant materials, and high-pressure-resistant seals to ensure stable control performance under extreme drilling conditions.
No. | Part No. | Description | Material | Primary Wear Causes | Damage Prevention Precautions |
1 | 9165203000 | Body | 45# steel (quenched & tempered, anti-corrosion electrophoretic coating) + internal copper alloy bushing | Internal channel clogging from hydraulic oil impurities; body corrosion from drilling fluid splashing; bushing wear from long-term friction; thread wear at mounting holes | Flush internal channels annually; clean surface monthly to remove drilling fluid residues; replace bushing if wear exceeds 0.2mm; use thread protectors when components are removed; inspect for corrosion monthly |
2 | 9160900009 | Valve Body, Pos.4 | 40Cr steel (quenched & tempered) + 316 stainless steel valve core + FKM seal | Valve core jamming from contaminated hydraulic oil; seal aging leading to oil leakage; valve body corrosion from moisture; pressure fatigue cracking | Replace hydraulic oil filter every 1000 operating hours; clean valve core every 800 hours; replace seals annually; inspect valve body for cracks monthly; calibrate valve pressure every 6 months |
3 | 9165200004 | Pressure Cap | 304 stainless steel + FKM seal ring | Seal aging leading to pressure leakage; thread wear from repeated disassembly; corrosion from salt mist; deformation from over-tightening | Tighten to specified torque (25-30 N·m); replace seals every 6 months; apply anti-seize compound to threads; inspect for corrosion monthly (offshore operations: biweekly); avoid over-tightening |
4 | 9165200002 | Steel Ball Catch | GCr15 bearing steel (heat treated, hardness HRC 60-65) + 65Mn spring | Steel ball surface wear; spring fatigue leading to poor clamping force; corrosion from moisture; jamming from dust ingress | Lubricate with molybdenum disulfide grease every 300 operating hours; inspect spring elasticity quarterly (replace if needed); apply anti-rust oil to surface; use dust caps when not in use |
3. Pipeline Connection Components
These components form the fluid transmission network of the FKQ1280-8 system, including gas pipes, joints, and fittings that connect actuators, valves, and other components. Key pain points in drilling operations include joint leakage, pipe corrosion from drilling fluid, and fitting thread wear—all of which can lead to fluid loss and system pressure failure. These parts feature precision-machined threads, corrosion-resistant materials, and reliable sealing structures to ensure leak-free and unobstructed fluid transmission under high-pressure drilling conditions.
No. | Part No. | Description | Material | Primary Wear Causes | Damage Prevention Precautions |
1 | 9165200016 | Gas Pipe | 304 stainless steel (seamless pipe, polished surface) | Surface corrosion from drilling fluid/salt mist; bending deformation from impact; weld joint fatigue from vibration; internal scaling from compressed air impurities | Clean surface daily to remove drilling fluid residues; avoid impact and excessive bending (minimum bending radius ≥ 50mm); use pipe clamps to fix and reduce vibration; inspect weld joints for cracks quarterly; flush pipeline annually |
2 | 9163800025 | Gas Pipe Joint | 304 stainless steel + NBR seal ring | Thread wear from repeated disassembly; seal aging leading to gas leakage; corrosion from moisture; misalignment causing stress | Tighten to specified torque (20-25 N·m); replace seals every 6 months; apply anti-seize compound to threads; ensure pipeline alignment before assembly; inspect for leakage monthly |
3 | 9163800023 | Gas Pipe Nut | 304 stainless steel (galvanized) | Thread wear; galvanizing peeling leading to corrosion; loosening from vibration; cross-head damage from improper tools | Use matching wrenches; tighten to specified torque (18-22 N·m); apply thread locker to prevent loosening; inspect for corrosion monthly; replace if thread damage is found |
4 | 9180401000 | Male and Female Angle Fittings | 316 stainless steel + FKM seal | Thread wear; seal aging; corrosion from salt mist (offshore); leakage from high-pressure fatigue | Tighten to specified torque (25-30 N·m); replace seals every 6 months; apply anti-corrosion oil to external threads; inspect for leakage during pressure testing; avoid sudden pressure spikes |
4. Sealing Components
These components are critical for maintaining the airtightness and pressure resistance of the FKQ1280-8 system, including O-rings, gaskets, and support rings that prevent fluid leakage at component joints. Key pain points in drilling operations include seal aging/hardening from high temperature, damage from sharp edges, and corrosion from drilling fluid/hydraulic oil—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 ensure reliable sealing performance in harsh drilling environments.
No. | Part No. | Description | Material | Primary Wear Causes | Damage Prevention Precautions |
1 | 530310050 | O Ring Seal 85X3.55 | 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 and deformation from incompatible hydraulic oil; extrusion damage from over-compression | Replace annually or if leakage is found; ensure sealing surface is free of sharp edges (deburr if necessary); install with proper compression (avoid over-compression); store in a cool, dry environment away from direct sunlight; use hydraulic oil compatible with FKM |
2 | 9163800024 | Gas Pipe Gasket Seal | PTFE (polytetrafluoroethylene) + aramid fiber (high-pressure-resistant and corrosion-resistant) | Aging and brittleness from long-term pressure; damage from foreign particles; compression set from over-tightening | Replace every 6 months; clean sealing surface before installation to remove foreign particles; tighten to specified torque (avoid over-tightening); store in a dry environment; avoid contact with oil during storage |
3 | 9165202002 | Support Ring | Polyamide (PA) plastic (wear-resistant and high-strength) | Abrasion from long-term friction; deformation from high temperature; cracking from impact; swelling from hydraulic oil | Inspect for wear monthly (replace if wear exceeds 0.3mm); avoid operating in environments above 120℃; protect from impact; use hydraulic oil compatible with PA plastic; clean surface monthly to remove oil residues |
4 | 9165201004 | Support Ring | Same as Support Ring (9165202002) | Same as Support Ring (9165202002) | Same as Support Ring (9165202002); additional regular batch inspection due to high quantity usage |
5 | 9165201001 | Pressure Ring | 45# steel (galvanized) + rubber lining | Galvanizing peeling leading to corrosion; rubber lining aging and cracking; deformation from over-tightening; wear from vibration | Inspect galvanizing layer monthly (touch up with anti-corrosion paint if peeling); replace rubber lining annually; tighten to specified torque; use spring washers to reduce vibration impact; apply anti-rust oil to surface |
5. Spring & Elastic Components
These components provide elastic force and reset functions for the FKQ1280-8 system, including body springs, plunger springs, and spool rod springs that ensure components return to their initial positions and maintain stable working pressure. Key pain points in drilling operations include spring fatigue deformation from repeated compression, corrosion from moisture, and breakage from overload—all of which can lead to component reset failure and system control inaccuracy. These parts feature high-fatigue-resistance spring steel and anti-corrosion treatments to ensure long-term stable elastic performance.
No. | Part No. | Description | Material | Primary Wear Causes | Damage Prevention Precautions |
1 | 9165200019 | Body Spring | 65Mn spring steel (shot peened, anti-corrosion galvanized) | Fatigue deformation from repeated compression; galvanizing peeling leading to corrosion; breakage from overload; jamming from dust accumulation | Inspect spring deformation monthly (replace if compression amount deviates by more than 10%); clean dust and oil residues quarterly; avoid overload during operation; apply anti-rust oil to surface; store spare springs in a dry environment |
2 | 9165200005 | Plunger Spring | 50CrVA spring steel (shot peened, anti-corrosion electrophoretic coating) | Same as Body Spring; additional wear from high-frequency compression | Inspect elasticity biweekly (replace if needed); clean monthly; other precautions same as Body Spring; replace every 2 years regardless of condition |
3 | 9163800036 | Spool Rod Spring | 65Mn spring steel (shot peened, anti-rust oil coating) | Fatigue deformation; corrosion from moisture; breakage from lateral force; jamming from dust | Inspect elasticity monthly; avoid applying lateral force; clean dust quarterly; apply anti-rust oil every 2 months; store spare springs in oil-soaked cloth |
4 | 9165200020 | Spring Stop Collar | 45# steel (galvanized) | Galvanizing peeling leading to corrosion; deformation from spring pressure; wear from vibration; thread wear at connection | Inspect for deformation monthly (replace if needed); touch up galvanizing layer if peeling; ensure tight connection with spring; apply thread locker if threaded; inspect wear quarterly |
6. Spool & Positioning Components
These components are responsible for the positioning and guiding of the FKQ1280-8 system's moving parts, including spool rods, sleeves, and brackets that ensure precise movement of actuators and valves. Key pain points in drilling operations include spool rod bending, sleeve wear, and bracket deformation from vibration—all of which can lead to component jamming and control inaccuracy. These parts feature high-strength materials and precision machining to ensure stable positioning and guiding performance under high-vibration drilling conditions.
No. | Part No. | Description | Material | Primary Wear Causes | Damage Prevention Precautions |
1 | 9163800033 | Spool Rod | 304 stainless steel (polished surface) | Surface scratches from dust/impurities; bending deformation from lateral force; corrosion from moisture; wear at connection | Keep surface clean and apply anti-rust oil weekly; avoid applying lateral force during operation; inspect for bending monthly (straighten if needed); polish minor scratches with 600-grit sandpaper; use bushing sleeves at connection points |
2 | 9163800027 | Spool Connecting Rod | 40Cr steel (quenched & tempered) | Bending deformation from torque overload; thread wear from repeated disassembly; corrosion from moisture; keyway wear | Avoid torque overload during operation; use torque wrench for connection (30-35 N·m); apply thread locker; inspect keyway fit quarterly; apply anti-rust oil to surface monthly |
3 | 9163800026 | Spool Connecting Rod and Baffle Plate | 40Cr steel (connecting rod) + Q235B steel (baffle plate, anti-corrosion coating) | Connecting rod bending; baffle plate corrosion/deformation; weld joint fatigue from vibration; baffle plate edge wear | Inspect for bending and deformation monthly; check weld joints for cracks quarterly; touch up baffle plate coating if peeling; lubricate connecting rod pivot monthly; avoid impact on baffle plate |
4 | 9165200014 | Spool Sleeve | Copper alloy (CuZn39Pb3, oil-impregnated) | Inner hole wear from friction with spool rod; oil impregnation failure leading to dry friction; deformation from high temperature; corrosion from moisture | Check oil impregnation status every 6 months (re-impregnate if dry); ensure operating temperature does not exceed 100℃; replace if inner hole wear exceeds 0.3mm; apply anti-rust oil to external surface monthly |
5 | 9163800030 | Spool Sleeve Bracket | Q235B steel (anti-corrosion powder coating) | Coating peeling leading to corrosion; deformation from vibration; bolt hole wear; weld joint fatigue | Inspect coating integrity monthly (touch up if peeling); use spring washers to reduce vibration impact; tighten mounting bolts quarterly; inspect weld joints for cracks monthly; clean surface dust weekly |
6 | 9163800035 | Stop Collar for Spool Rod | 45# steel (galvanized) | Galvanizing peeling leading to corrosion; deformation from impact; thread wear from repeated adjustment; wear from vibration | Tighten to specified torque after adjustment; apply thread locker; inspect for corrosion monthly; avoid impact; replace if thread damage or deformation is found |
7 | 9163800018 | Locating Sleeve | 45# steel (quenched & tempered, inner wall polished) | Inner wall wear from friction; deformation from impact; corrosion from moisture; burrs at both ends causing component damage | Inspect inner wall wear monthly (replace if wear exceeds 0.2mm); avoid impact; apply anti-rust oil to surface monthly; remove burrs at both ends regularly; ensure precise fitting with matched components |
7. Fastening Components
These components secure all parts of the FKQ1280-8 system, ensuring structural stability and component alignment in high-vibration drilling environments. Key pain points include loosening from continuous vibration, corrosion from drilling fluid/salt mist, thread wear, and cross-head damage—all of which can lead to component detachment and system failure. These parts feature high-strength materials, anti-corrosion treatments, and anti-loosening designs to ensure reliable fastening performance.
No. | Part No. | Description | Material | Primary Wear Causes | Damage Prevention Precautions |
1 | 4204000040 | Type I Hex Nut M6 | 35CrMo steel (galvanized, quenched & tempered) | Thread wear; galvanizing peeling leading to corrosion; loosening from vibration; damage from improper tools | Use matching hex wrenches; tighten to specified torque (8-12 N·m); apply thread locker (Loctite 243) for vibration-prone areas; inspect for corrosion monthly (offshore operations: biweekly); replace if thread damage or rust is found |
2 | 9163800031 | Piston Rod Nut | 40Cr steel (galvanized, quenched & tempered) | Thread wear; corrosion; loosening from vibration; deformation from over-tightening | Use torque wrench for assembly (35-40 N·m); apply thread locker; inspect for corrosion monthly; replace if thread damage is found; avoid over-tightening |
3 | 9163800009 | Piston Rod Nut | Same as Piston Rod Nut (9163800031) | Same as Piston Rod Nut (9163800031) | Same as Piston Rod Nut (9163800031); additional regular inspection due to high quantity usage |
8. Pump Core Components
This component is the core power unit of the FKQ1280-8 system's hydraulic/pneumatic supply, responsible for generating and transmitting pressure to drive the entire control system. Key pain points in drilling operations include pump head wear from contaminated fluid, seal leakage, and component damage from cavitation—all of which can lead to insufficient system pressure and BOP actuation failure. This part features high-precision machining and wear-resistant materials to ensure stable pressure supply.
No. | Part No. | Description | Material | Primary Wear Causes | Damage Prevention Precautions |
1 | 9165200015 | Pump Head | 45# steel (quenched & tempered, anti-corrosion coating) + 316 stainless steel internal components + FKM seals | Internal component wear from contaminated fluid; seal aging leading to leakage; pump head corrosion from drilling fluid; cavitation damage from insufficient inlet pressure | Ensure fluid cleanliness meets system requirements; replace seals every 6 months; clean pump head internal components annually; inspect for corrosion monthly; maintain stable inlet pressure to avoid cavitation; replace if cavitation damage is found |
Procurement & Technical Support Guidance
All 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 sealing performance testing, to ensure reliable operation in high-pressure, high-vibration, and corrosive drilling environments. This catalog serves as a professional procurement reference, helping you quickly locate the exact parts you need for the FKQ1280-8 system, while also providing in-depth technical guidance to solve common wear and failure problems—effectively reducing maintenance time and operational 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 safe and efficient 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.