Core Application & Equipment Compatibility
These parts are exclusively engineered for the Shanghai Shenkai FHZ54-35 Annular Blowout Preventer (BOP), a critical well control device for 35MPa oil and gas drilling operations. Targeting drilling maintenance engineers and procurement teams, they address seal leakage, piston wear, and structural loosening—key risks to well integrity. All comply with API 16A and GB/T standards, ensuring reliability in harsh drilling environments.
1. Main Structural Components
These core components form the FHZ54-35 BOP’s load-bearing framework, withstanding high pressure and mechanical stress. A drilling team resolved shell leakage by replacing the worn part (API 16A compliant) and optimizing fastener torque, avoiding 10+ hours of unplanned downtime. They guarantee structural stability and operational safety.
No. | Description | Part No./Model | Material | Main Wear Causes | Damage Prevention Notes |
1 | Shell | H27B.09.00 | Forged AISI 4130 alloy steel, heat-treated, anti-corrosion coated, API 16A compliant | Pressure cycling fatigue; abrasive drilling mud erosion; external impact damage | Quarterly ultrasonic crack testing; use filtered drilling mud; avoid direct mechanical impact during handling |
2 | Bonnet | H27B.04 | Alloy steel, precision-machined sealing surface, zinc-nickel plating for corrosion resistance | Sealing surface scratches; over-torque deformation; drilling fluid corrosion | Deburr surfaces pre-installation; torque fasteners per GB/T 5277; clean with neutral detergent post-operation |
3 | Piston | H27B.10 | Alloy steel, hard chrome-plated surface, precision-machined for reciprocating motion | Reciprocating friction wear; seal groove damage; hydraulic fluid contamination corrosion | Lubricate with API-certified hydraulic oil; inspect seal grooves monthly; replace hydraulic oil every 6 months |
4 | Body Sleeve | H27B.12.00 | Carbon steel with anti-wear coating, compatible with high-pressure working conditions | Internal friction wear; drilling fluid erosion; thermal expansion deformation | Ensure piston alignment; weekly internal surface cleaning; monitor working temperature (≤80℃) |
5 | Tapered Packer | H27.02.00 | Reinforced rubber with steel core, pressure-resistant, wear-resistant | Drill pipe abrasion; high-pressure compression set; thermal aging | Pre-operation crack inspection; limit compression deformation to ≤25%; replace after 400 drilling hours |
6 | Anti-wear Plate | H27.03 | Mn13 wear-resistant steel, heat-treated, HRC ≥50 hardness | Impact wear from drilling tools; abrasive mud erosion; surface fatigue | Monthly wear inspection; replace if wear depth exceeds 3mm; clean mud residue after each use |
2. Piston Wear Rings & Sealing Components
These parts ensure piston sealing integrity and reduce friction, critical for BOP responsiveness. A drilling site resolved hydraulic leakage by replacing worn piston sealing rings (per GB/T 3452.1) and cleaning seal grooves, avoiding hydraulic system contamination and operational interruptions.
No. | Description | Part No./Model | Material | Main Wear Causes | Damage Prevention Notes |
1 | Upper Wear Ring of Piston | H27B.14 | Polyetheretherketone (PEEK), high wear resistance, compatible with piston motion | Reciprocating friction; hydraulic fluid contamination; thermal aging | Lubricate with anti-wear grease; inspect monthly for cracks; replace if surface wear exceeds 0.5mm |
2 | Lower Wear Ring of Piston | H27B.15 | PEEK, corrosion-resistant, high-pressure tolerance (35MPa) | Piston misalignment wear; abrasive particle damage; thermal stress | Ensure piston concentricity; filter hydraulic oil to ≤2μm; monitor working temperature |
3 | Upper Sealing Ring of Piston | H27.11 | Hydrogenated Nitrile Rubber (HNBR), stainless steel spring-reinforced | Reciprocation wear; spring fatigue; hydraulic fluid aging | Monthly spring integrity check; lubricate with compatible grease; replace every 3 months |
4 | Lower Sealing Ring of Piston | H27.13 | HNBR, dual-seal design, oil-resistant, -40℃ to 120℃ temperature range | Low-temperature hardening; pressure impact damage; piston misalignment | Maintain working temperature ≥-10℃; avoid sudden pressure spikes; align piston during installation |
5 | O-ring | H27.08 | Nitrile Rubber (NBR), GB/T 3452.1 compliant, oil-resistant | Sharp groove nicks; thermal aging; fluid contamination | Deburr seal grooves; store at ≤25℃ in dry place; use compatible hydraulic oil |
6 | Inner Sealing Ring of Bonnet | H27.07 | HNBR, high-pressure resistant, wear-resistant | Bonnet vibration wear; compression set; drilling fluid corrosion | Align bonnet during installation; inspect monthly for deformation; replace every 3 months |
7 | O-ring | 53×5.3 | NBR, standard size, GB/T 3452.1 compliant | Installation damage; vibration wear; oxygen aging | Use seal installation tool; store in airtight container; replace during routine maintenance |
8 | O-ring | 25×2.65 | NBR, small-size, suitable for fastener sealing | Fastener torque damage; moisture corrosion; over-compression | Torque fasteners to specified values; apply anti-rust spray; avoid pinching during installation |
3. Fasteners, Plugs & Lifting Parts
These parts secure BOP components, withstanding high vibration and pressure. A team resolved screw loosening by torqueing per GB/T 70.1 and GB/T 5783 standards, preventing component detachment and ensuring safe operation in high-load drilling scenarios.
No. | Description | Part No./Model | Material | Main Wear Causes | Damage Prevention Notes |
1 | Screw | GB/T 70.1 M12X40 | 8.8-grade alloy steel, hexagon socket head, zinc-plated, GB/T 70.1 compliant | Over-torque thread stripping; vibration fatigue; moisture corrosion | Torque to 45N·m; apply anti-seize compound; inspect threads before reuse |
2 | Screw | GB/T 70.1 M12X70 | 8.8-grade alloy steel, hexagon socket head, zinc-plated, high-torque design | Bending from uneven loading; thread wear; drilling fluid corrosion | Ensure uniform loading; torque to 50N·m; clean with diesel after use |
3 | Bolt | GB/T 5783 M12X35 | 8.8-grade alloy steel, hexagon head, zinc-plated, GB/T 5783 compliant | Vibration loosening; thread galling; atmospheric corrosion | Use lock washers; torque to 40N·m; monthly anti-rust spray application |
4 | Supporting Screw of Jaw Chuck | H27.15 | 7.8-grade carbon steel, thread rolled, corrosion-resistant coating | Jaw chuck movement wear; thread damage; impact during operation | Lubricate threads weekly; inspect jaw alignment; avoid excessive impact |
5 | Screw of Jaw Chuck | H27.14 | 8.8-grade alloy steel, hexagon head, compatible with jaw chuck torque | Jaw clamping wear; thread stripping; drilling fluid contamination | Torque to 35N·m; clean threads after each use; replace if thread deformation occurs |
6 | Z1” External Hexagonal Screw Plug | 2C01.21 | Brass, external hexagon, NBR O-ring seal, pressure-resistant | Seal leakage; thread damage; over-torque deformation | Torque to 60N·m; inspect O-ring monthly; apply anti-corrosion tape to threads |
7 | Screw Plug Z 3/4” | SFZ1310-01 | Stainless steel (304), external thread, PTFE seal | Thread galling; seal aging; acidic fluid corrosion | Apply anti-seize compound; replace PTFE seal quarterly; store in dry environment |
8 | Shackle | S-BW17-1 1/2 | Alloy steel, hot-dip galvanized, safety latch design, 17t load rating | Lifting fatigue; latch damage; outdoor corrosion | Never exceed rated load; inspect latch pre-use; monthly anti-rust spray |
4. Jaw Chuck Assembly Parts
These parts form the jaw chuck mechanism, responsible for secure drill pipe gripping. A drilling team resolved jaw slipping by replacing worn jaw chucks and adjusting supporting screws, restoring clamping stability and eliminating operational safety risks.
No. | Description | Part No./Model | Material | Main Wear Causes | Damage Prevention Notes |
1 | Jaw Chuck | H27.06 | Alloy steel, heat-treated (HRC 40-45), serrated contact surface for enhanced grip | Drill pipe gripping wear; serration deformation; impact damage | Weekly serration inspection; avoid over-clamping; replace if serration wear exceeds 1mm |
2 | Bonnet Chuck | FHZ5414-04 | Alloy steel, zinc-plated, precision-machined for bonnet connection | Bonnet vibration wear; thread damage; misalignment stress | Align with bonnet during installation; torque to specified values; monthly looseness check |
3 | Adapter Substitute | FHZ5414-10 | Alloy steel, anti-corrosion coated, compatible with jaw chuck and body | Friction wear; drilling fluid corrosion; thermal stress deformation | Weekly lubrication of contact surfaces; clean after use; monitor working temperature |
5. One-Year Spare Parts Kit
This kit includes high-wear piston wear rings and sealing components, aligned with API 16A maintenance schedules. It ensures critical parts are readily available for annual routine replacements, minimizing unplanned downtime and maintaining BOP operational reliability.
No. | Description | Part No./Model | Material | Main Wear Causes | Storage & Usage Notes |
1 | O-ring | H27.08 | NBR, GB/T 3452.1 compliant | Aging; installation damage; fluid contamination | Store at ≤25℃ in dry airtight container; use within 12 months |
2 | Inner Sealing Ring of Bonnet | H27.07 | HNBR, high-pressure resistant | Vibration wear; compression set | Avoid direct sunlight; inspect for cracks pre-use; replace quarterly |
3 | Upper Sealing Ring of Piston | H27.11 | HNBR with stainless steel spring | Reciprocation wear; spring fatigue | Store flat to prevent deformation; check spring integrity before installation |
4 | Lower Sealing Ring of Piston | H27.13 | HNBR, dual-seal design | Pressure impact; low-temperature damage | Store above -10℃; avoid sharp objects during storage |
5 | Lower Wear Ring of Piston | H27B.15 | PEEK, high wear resistance | Friction wear; fluid contamination | Store in dust-free environment; inspect for scratches before use |
6 | O-ring | 53×5.3 | NBR, standard size | Installation pinching; aging | Sort by size for easy access; use installation tool to avoid damage |
7 | O-ring | 25×2.65 | NBR, small-size | Moisture corrosion; over-compression | Apply anti-rust agent before storage; torque fasteners properly |
8 | Upper Wear Ring of Piston | H27B.14 | PEEK, corrosion-resistant | Thermal aging; friction wear | Store in cool environment; replace if wear depth exceeds 0.5mm |
FAQs
Question | Answer |
What are the key maintenance cycles for FHZ54-35 BOP parts? | Follow API 16A guidelines: Seals and wear rings every 2-3 months; structural parts quarterly ultrasonic testing; jaw chucks monthly serration inspection. Annual replacement of spare parts kit components to ensure reliability. |
How to ensure compatibility of replacement parts for this BOP? | Use only genuine Shanghai Shenkai parts with specified model numbers (e.g., H27B series). Ensure parts comply with API 16A and GB/T standards. Avoid generic substitutes, as they may compromise sealing integrity and structural safety. |
Procurement Guidance
Genuine parts for the Shanghai Shenkai FHZ54-35 Annular BOP ensure compliance with API 16A and GB/T standards, critical for safe oil and gas drilling operations. Whether for routine maintenance, structural replacements, or emergency repairs, we provide authentic parts matching original specifications. Contact our team with your drilling operation needs for tailored recommendations and professional technical support to maintain reliable BOP performance.
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