Core Application & Equipment Compatibility
These supplemental parts are exclusively engineered for the 4 1/16"-10000psi Coiled Tubing (CT) Blowout Preventer (BOP), complementing the core components to ensure full high-pressure operational integrity. Targeting drilling maintenance engineers and procurement teams, they address actuator sealing failure, mechanical wear, and control mechanism malfunctions—key risks in 10000psi coiled tubing operations. All comply with API 16A, GB/T, and JB/T standards for reliable performance in harsh high-pressure environments.
1. Actuator Cylinder Components
These parts form the core of the BOP’s actuator system, driving ram movement and withstanding extreme hydraulic pressure. A drilling team resolved cylinder leakage by replacing worn piston and seal components (per API 16A), restoring actuator responsiveness and avoiding 8+ hours of unplanned downtime in high-pressure operations.
No. | Name | Part No./Model | Material | Main Wear Causes | Damage Prevention Notes |
1 | 70液缸体 (70 Cylinder Block) | 4R03.03.07 | Forged alloy steel, precision-machined inner wall, anti-corrosion coated, API 16A compliant | Hydraulic fluid corrosion; piston friction wear; high-pressure fatigue | Use filtered hydraulic oil (≤2μm); inspect inner wall monthly for scratches; lubricate with anti-wear grease |
2 | 70柱塞缸体 (70 Plunger Cylinder Block) | 4R03.06.08 | Alloy steel, hard chrome-plated inner surface, high-pressure resistant | Plunger friction wear; seal extrusion damage; fluid contamination | Monitor plunger movement for smoothness; replace seals every 3 months; clean internal surface after disassembly |
3 | 70液缸盖 (70 Cylinder Cover) | 4R03.03.03 | Alloy steel, precision-machined sealing surface, zinc-nickel plating | Sealing surface scratches; over-torque deformation; high-pressure impact | Deburr surfaces pre-installation; torque bolts uniformly; inspect seal groove for damage |
4 | 70液缸头 (70 Cylinder Head) | 4R03.03.10 | Alloy steel, corrosion-resistant coating, compatible with high-pressure sealing | Seal aging; thread wear; hydraulic fluid erosion | Inspect sealing elements before assembly; apply anti-seize to threads; replace after 500 actuation cycles |
5 | 70活塞 (70 Piston) | 4R03.03.08 | Alloy steel, with integrated seal grooves, hard chrome-plated | Reciprocating friction wear; seal groove damage; thermal expansion deformation | Ensure piston concentricity; inspect grooves monthly for burrs; maintain working temperature ≤80℃ |
6 | 70关导向柱塞杆 (70 Close Guide Plunger Rod) | 4R03.06.07 | Alloy steel, precision-ground surface, hard chrome-plated for wear resistance | Bending from misalignment; seal friction wear; high-pressure impact | Align with cylinder during installation; inspect straightness monthly; replace if surface wear exceeds 0.5mm |
7 | 70液缸螺栓 (70 Cylinder Bolt) | 4R03.03.04 | 10.9-grade alloy steel, zinc-plated, high-torque design | Vibration loosening; thread galling; over-torque damage | Torque to 500N·m; apply anti-seize compound; inspect monthly for looseness |
8 | 液缸螺钉 (Cylinder Screw) | 4R03.06.05 | 8.8-grade alloy steel, hexagon socket head, corrosion-resistant coating | Fluid corrosion; thread wear; vibration fatigue | Torque to 45N·m; clean threads after use; replace if thread deformation occurs |
2. Sealing Components (Specialized & Standard)
These seals—including specialized Teklan double triangular seals—ensure high-pressure sealing integrity, critical for 10000psi CT BOP operation. A drilling site resolved persistent leakage by replacing worn Teklan seals (per manufacturer specs), restoring sealing performance and avoiding high-pressure safety hazards.
No. | Name | Part No./Model | Material | Main Wear Causes | Damage Prevention Notes |
1 | 特康双三角密封 (Teklan Double Triangle Seal) | RDD200360 | Fluoropolymer composite, high-pressure resistant, temperature range -50℃ to 150℃ | High-pressure extrusion; thermal aging; installation damage | Use dedicated installation tool; avoid sharp edges during assembly; replace every 3 months |
2 | 特康双三角密封 (Teklan Double Triangle Seal) | PDD401250 | Fluoropolymer composite with rubber core, enhanced sealing performance | Fluid contamination; compression set; friction wear | Inspect for cracks pre-use; store in clean dry environment; avoid over-compression |
3 | 特康双三角密封 (Teklan Double Triangle Seal) | RDD000060 | Fluoropolymer composite, low-friction design, compatible with plunger movement | Reciprocating friction; thermal stress; fluid erosion | Lubricate with compatible grease; monitor wear monthly; replace if surface damage occurs |
4 | 特康双三角密封 (Teklan Double Triangle Seal) | RDD200350 | Fluoropolymer composite, high-corrosion resistance, 10000psi compatible | High-pressure fatigue; chemical corrosion; installation pinching | Ensure proper groove fit; inspect during routine maintenance; replace after 400 actuation cycles |
5 | 柱塞组合密封 (Plunger Composite Seal) | PCG000400-Z2053 | HNBR + PEEK, multi-layer sealing, wear-resistant | Plunger friction; seal layer separation; fluid contamination | Replace as a complete assembly; avoid disassembling layers; filter hydraulic oil to ≤2μm |
6 | O形圈 (O-Ring) | OR5011500 115×5.0 | HNBR, oil-resistant, GB/T 3452.1 compliant, -40℃ to 120℃ | Sharp groove nicks; thermal aging; high-pressure extrusion | Deburr seal grooves; store at ≤25℃; use compatible hydraulic oil |
7 | O形圈 (O-Ring) | 5.8×1.9 | NBR, small-size, corrosion-resistant, suitable for small components | Installation damage; moisture corrosion; over-compression | Use tweezers for installation; avoid pinching; apply anti-rust agent before storage |
8 | O形圈 (O-Ring) | OR4005000 50×4 | HNBR, high-pressure resistant, compatible with cylinder sealing | Vibration wear; fluid aging; thermal expansion | Inspect monthly for cracks; replace during routine maintenance; store flat to prevent deformation |
3. Fasteners, Retaining & Auxiliary Components
These parts secure actuator components and prevent disassembly, ensuring structural stability in high-pressure operations. A team resolved component loosening by torqueing fasteners per GB/T standards and replacing worn retaining rings, avoiding mechanical failure in critical drilling scenarios.
No. | Name | Part No./Model | Material | Main Wear Causes | Damage Prevention Notes |
1 | 内六角圆柱头螺钉 (Hex Socket Cylinder Head Screw) | GB/T70.1 M12×40 | 10.9-grade alloy steel, zinc-plated, GB/T 70.1 compliant | Over-torque thread stripping; vibration fatigue; fluid corrosion | Torque to 55N·m; use compatible socket tool; apply anti-seize compound |
2 | 标准型弹簧垫圈12 (Standard Spring Washer 12) | GB93 | Carbon steel, heat-treated, anti-loosening design | Fatigue deformation; corrosion; compression loss | Replace with screws; inspect for elasticity before installation; avoid over-compression |
3 | 盖形螺母 (Cap Nut) | GB/T923 M18 | Alloy steel, zinc-plated, protective cap design, GB/T 923 compliant | Cap damage; thread wear; moisture corrosion | Torque to 90N·m; inspect cap integrity monthly; replace if cap is cracked |
4 | 垫圈20 (Washer 20) | GB95 | Stainless steel (304), flat washer, corrosion-resistant, GB/T 95 compliant | Compression deformation; friction wear; corrosion | Ensure proper size match; inspect for flatness before installation; replace if deformed |
5 | 螺塞NPT1/4" (Plug NPT1/4") | 2S48.03.13 | Brass, NPT thread, with O-ring seal, corrosion-resistant | Thread wear; seal aging; over-torque damage | Torque to 35N·m; inspect O-ring monthly; apply anti-seal tape to threads |
6 | 挡圈 (Retaining Ring) | BH4001250 | Carbon steel, heat-treated, external snap ring, wear-resistant | Installation damage; snap ring deformation; high-pressure stress | Use snap ring pliers; inspect groove fit; replace if snap ring loses tension |
7 | 挡圈 (Retaining Ring) | BU3100500 | Stainless steel (304), internal snap ring, GB/T compliant | Moisture corrosion; installation damage; friction wear | Store in dry environment; inspect for cracks before use; replace if bent |
8 | 内六角平端紧定螺钉 (Hex Socket Flat End Set Screw) | GB/T M6×8 | 8.8-grade alloy steel, zinc-plated, anti-loosening design | Thread wear; vibration loosening; over-torque damage | Torque to 8N·m; apply anti-seize compound; inspect monthly for looseness |
4. Control & Protective Components
These parts enable manual control and protect actuator components, ensuring operational safety and ease of maintenance. Aligned with JB/T standards, they provide reliable manual override and prevent mechanical damage in harsh drilling environments.
No. | Name | Part No./Model | Material | Main Wear Causes | Damage Prevention Notes |
1 | 手轮 (Handwheel) | JB/T7273.3 25×250 | Cast iron with rubber grip, JB/T 7273.3 compliant, corrosion-resistant | Mechanical impact damage; grip wear; shaft connection loosening | Avoid heavy impact; inspect grip monthly; tighten connection screws regularly |
2 | 70护罩 (70 Shield) | 4R03.03.02 | Sheet steel, anti-corrosion coated, impact-resistant design | External impact; atmospheric corrosion; deformation from pressure | Inspect for dents weekly; apply anti-rust spray monthly; replace if deformed |
3 | 指示杆 (Indicator Rod) | 4R03.03.06 | Alloy steel, chrome-plated, precision-machined for position indication | Friction wear; bending; corrosion | Lubricate with anti-wear grease; inspect straightness monthly; replace if bent |
4 | 70锁紧螺杆 (70 Locking Screw) | 4R03.03.05 | Alloy steel, thread rolled, corrosion-resistant coating | Thread wear; vibration loosening; fluid corrosion | Torque to specified values; apply anti-seize to threads; inspect monthly |
5 | 键 (Key) | GB/T1096 6×6×18 | Carbon steel, heat-treated, GB/T 1096 compliant, shear-resistant | Shear damage from overload; wear; corrosion | Ensure proper fit between shaft and component; inspect for wear quarterly; replace if shear marks occur |
FAQ
Question | Answer |
How to maintain Teklan double triangular seals for optimal performance? | Store in clean, dry environment (≤25℃) away from sunlight; use dedicated tools for installation to avoid damage; replace every 3 months or 400 actuation cycles, whichever comes first. Ensure compatibility with hydraulic oil to prevent chemical degradation. |
What standards apply to the fasteners and control components of this CT BOP? | Fasteners comply with GB/T 70.1, GB/T 93, GB/T 95, and GB/T 923; handwheel follows JB/T 7273.3; all components meet API 16A for high-pressure compatibility. Torque values must adhere to manufacturer specs to ensure structural integrity in 10000psi operations. |
Procurement Guidance
Genuine supplemental parts for the 4 1/16"-10000psi CT BOP ensure compliance with API 16A, GB/T, and JB/T standards, critical for maintaining full operational integrity in high-pressure coiled tubing operations. Whether for actuator maintenance, seal replacements, or control mechanism repairs, we provide authentic parts matching original specifications. Contact our team with your operational needs for tailored recommendations and professional technical support to keep your BOP performing reliably.
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