Core Application & Equipment Compatibility
These spare parts are exclusively for 4 1/16"-10000psi Coiled Tubing (CT) Blowout Preventers, covering critical sealing and retaining components. Designed for drilling maintenance engineers and procurement teams, they comply with API 16A and GB/T standards, ensuring high-pressure sealing integrity and structural stability, minimizing downtime in extreme coiled tubing operations.
1. Sealing Components
This category includes O-rings, Teklan double triangle seals, Glyd Rings, and V-type stacked seals—core to BOP leak prevention. A drilling team resolved hydraulic system leakage by replacing worn Teklan seals (per API 16A), restoring 10000psi pressure resistance and avoiding 8+ hours of unplanned downtime.
No. | Name | Part No./Model | Material | Main Wear Causes | Damage Prevention Notes |
1 | O形圈 (O-Ring) OR3003500 35×3 | OR3003500 35×3 | HNBR, oil-resistant, -40℃ to 120℃, GB/T 3452.1 compliant | High-pressure extrusion; thermal aging; sharp groove scratches | Deburr installation grooves; store flat at ≤25℃; replace every 3 months |
2 | O形圈 (O-Ring) ORAR00435 145.42×6.99 | ORAR00435 145.42×6.99 | HNBR, high-pressure resistant, 10000psi compatible | Fluid erosion; compression fatigue; mechanical impact | Inspect for cracks pre-installation; filter hydraulic oil to ≤2μm; avoid over-tightening |
3 | V型叠封 (V-Type Stacked Seal) C050-224040 Ф36×51×22.5 | C050-224040 Ф36×51×22.5 | Fluororubber (FKM), multi-layer design, high-temperature resistant | Layer separation; high-pressure extrusion; thermal stress | Use dedicated installation tools; maintain temp ≤120℃; replace if layers shift |
4 | 特康双三角密封 (Teklan Double Triangle Seal) RDD200360 | RDD200360 | Fluoropolymer composite, low-friction, corrosion-resistant | Reciprocating friction; installation pinching; chemical corrosion | Lubricate with compatible grease; inspect for surface damage; replace after 400 cycles |
5 | O形圈 (O-Ring) OR5011500 115×5.0 | OR5011500 115×5.0 | HNBR, oil-resistant, large-diameter sealing | Vibration wear; fluid aging; over-compression | Store in dust-free environment; torque mating parts uniformly; replace during routine maintenance |
6 | 特康双三角密封 (Teklan Double Triangle Seal) PDD401250 | PDD401250 | Fluoropolymer composite with rubber core, enhanced sealing | Compression set; fluid contamination; high-pressure fatigue | Clean installation area thoroughly; inspect for core aging; replace every 3 months |
7 | 特康双三角密封 (Teklan Double Triangle Seal) PDD401600 | PDD401600 | Fluoropolymer composite, high-precision, 10000psi rated | Seal groove mismatch; impact damage; thermal aging | Ensure groove fit before installation; handle with care; replace after 200 cycles |
8 | 特康双三角密封 (Teklan Double Triangle Seal) RDD000060 | RDD000060 | Fluoropolymer composite, small-size sealing | Friction wear; installation damage; moisture corrosion | Use tweezers for handling; inspect for burrs on mating parts; replace if deformed |
9 | O形圈 (O-Ring) 5.8×1.9 | 5.8×1.9 | HNBR, micro-size, precision sealing | Sharp edge damage; over-torque; loss of elasticity | Deburr all contact surfaces; torque to 2-3N·m; store in sealed container |
10 | O形圈 (O-Ring) OR4005000 50×4 | OR4005000 50×4 | HNBR, general-purpose, high-pressure compatible | Fluid corrosion; thermal aging; repeated compression | Inspect monthly for cracks; replace every 3 months; avoid contact with corrosive fluids |
11 | 柱塞组合密封 (Plunger Composite Seal) PCG000400-Z2053 | PCG000400-Z2053 | HNBR + PEEK, multi-layer, wear-resistant | Layer delamination; plunger friction; high-pressure extrusion | Install in clean environment; lubricate plunger surface; replace after 500 cycles |
12 | 特康双三角密封 (Teklan Double Triangle Seal) RDD200350 | RDD200350 | Fluoropolymer composite, corrosion-resistant, high-pressure | Chemical erosion; reciprocating wear; thermal stress | Monitor fluid compatibility; inspect for discoloration; replace every 4 months |
13 | 特开斯来圈 (Glyd Ring) GR4300280 | GR4300280 | Polyurethane + PTFE, multi-function sealing | Plunger abrasion; seal deformation; fluid contamination | Replace as complete assembly; filter hydraulic oil; avoid disassembling |
14 | 特康双三角密封 (Teklan Double Triangle Seal) RDD200280 | RDD200280 | Fluoropolymer composite, low-friction, precision sealing | Surface scratches; installation pinching; high-pressure fatigue | Handle with clean gloves; inspect sealing surface; replace after 300 cycles |
15 | O形圈 (O-Ring) 9.25×1.78 (5-4) | 9.25×1.78 | HNBR, small-diameter, balance valve sealing | Valve core friction; sharp groove damage; aging | Deburr valve seat groove; replace with valve core; store in cool environment |
16 | O形圈 (O-Ring) 24.99×3.53 (5-6) | 24.99×3.53 | HNBR, medium-diameter, balance valve sealing | High-pressure extrusion; thermal aging; fluid erosion | Torque valve components uniformly; inspect monthly; replace every 3 months |
17 | O形圈 (O-Ring) 20.3×2.62 (5-8) | 20.3×2.62 | HNBR, medium-diameter, balance valve sealing | Vibration wear; over-compression; fluid contamination | Lubricate with anti-wear grease; inspect for cracks; replace during valve maintenance |
18 | O形圈 (O-Ring) ORAR00433 (7-5) | ORAR00433 | HNBR, plug assembly sealing, 10000psi rated | Plug friction; groove scratches; aging | Deburr plug groove; replace with retaining ring; inspect before installation |
2. Retaining Rings
Retaining rings secure sealing components and mechanical parts, preventing displacement under high pressure. Aligned with GB/T standards, they are critical for structural stability— a site avoided component detachment by replacing deformed rings, ensuring BOP operational safety.
No. | Name | Part No./Model | Material | Main Wear Causes | Damage Prevention Notes |
1 | 挡圈 (Retaining Ring) BU2300350 | BU2300350 | Stainless steel (304), internal snap ring, corrosion-resistant | Installation damage; tension loss; moisture corrosion | Use snap ring pliers; inspect for tension before installation; replace if bent |
2 | 挡圈 (Retaining Ring) BH5801600 160×5.8×2.5 | BH5801600 160×5.8×2.5 | Carbon steel, heat-treated, external snap ring | High-pressure deformation; friction wear; rust | Inspect for straightness; apply anti-rust oil; replace after 12 months |
3 | 挡圈 (Retaining Ring) BH4001250 | BH4001250 | Carbon steel, zinc-plated, external snap ring | Zinc layer wear; vibration loosening; deformation | Torque mating parts uniformly; inspect zinc layer; replace if rust occurs |
4 | 挡圈 (Retaining Ring) BU3100500 | BU3100500 | Stainless steel (304), internal snap ring, wear-resistant | Installation pinching; groove friction; corrosion | Ensure groove fit; use proper tools; replace if tension is lost |
5 | 挡圈 (Retaining Ring) BBP80B433 (7-6) | BBP80B433 | Stainless steel (304), internal snap ring, plug assembly | Plug movement friction; corrosion; deformation | Inspect after plug disassembly; replace with O-ring; store in dry environment |
3. Support Rings
Support rings protect sealing components from extrusion and friction, extending their service life in high-pressure environments. Compatible with balance valve assemblies, they comply with API 16A, ensuring sealing stability and reducing maintenance frequency.
No. | Name | Part No./Model | Material | Main Wear Causes | Damage Prevention Notes |
1 | 承托环 (Support Ring) C663-22 Ф9.5×Ф12.1×1.4 (5-5) | C663-22 Ф9.5×Ф12.1×1.4 | PTFE, low-friction, high-temperature resistant | Friction wear; pressure extrusion; thermal deformation | Replace with matching O-ring; maintain temp ≤80℃; clean before installation |
2 | 承托环 (Support Ring) Ф25×Ф30.4×1.4 (5-7) | Ф25×Ф30.4×1.4 | PTFE, corrosion-resistant, pressure-resistant | Reciprocating friction; fluid contamination; extrusion damage | Lubricate with anti-wear grease; inspect for surface wear; replace after 400 cycles |
3 | 承托环 (Support Ring) Ф20×Ф24×1.4 (5-9) | Ф20×Ф24×1.4 | PTFE, precision-machined, low-friction | Groove mismatch; friction wear; thermal stress | Ensure groove dimensional accuracy; replace if deformed; store flat |
FAQs
Question | Answer |
What is the storage standard for these sealing parts? | Store in cool, dry environment (15-25℃, humidity ≤60%) away from sunlight and chemicals. Keep O-rings and Teklan seals flat to avoid deformation; use sealed containers to prevent dust contamination. Do not stack heavy objects on spare parts. |
How to match spare parts with BOP assemblies during replacement? | Match part numbers strictly with BOP component drawings (e.g., RDD200360 for shear cylinder, ORAR00433 for plug assemblies). Follow API 16A installation specs: torque fasteners per GB/T standards, use dedicated tools for seals/rings, and inspect fit before operation. |
Procurement Guidance
Genuine spare parts are essential for maintaining 4 1/16"-10000psi CT BOP performance, ensuring compliance with API 16A and GB/T standards. Whether for sealing component replacement, retaining ring upgrades, or support ring maintenance, we provide authentic parts matching original specifications. Contact our team for tailored recommendations and professional technical support to minimize downtime and maximize operational safety.
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