BOP Handling Device Hydraulic & Control System Parts Catalog:

1

Bearing 8205

GB301-84

GCr15 Bearing Steel (High-Precision Rolling Elements, Heat-Treated)

1. Seizure due to contamination of lubricating grease by hydraulic oil leakage; 2. Fatigue damage from cyclic radial loads (load fluctuation ≤±15% of rated load).

1. Use hydraulic oil-resistant grease for lubrication; inspect for oil leakage around bearings monthly; 2. Replace bearings every 2000 operating hours or if vibration amplitude exceeds 0.15mm/s.

2

Bearing 106

GB276-82

GCr15 Bearing Steel (Deep Groove Structure, Precision Grade P6)

1. Abrasive wear from dust and metal particles ingress; 2. Corrosion pitting in high-humidity offshore environments (relative humidity ≥85%).

1. Install dust-proof seals with IP54 protection level; clean the bearing housing quarterly; 2. Apply anti-corrosion coating to bearing end faces and inspect for pitting every 6 months.

1

High pressure rubber hose 10Ⅱ-1230

JB1885-77

Nitrile Rubber (Inner Tube, Oil-Resistant) + High-Strength Steel Wire (Reinforcement, 4 Layers) + Chloroprene Rubber (Outer Cover, Wear-Resistant)

1. Outer cover aging and cracking from long-term UV exposure (service life ≤3 years in outdoor environments); 2. Reinforcement layer fatigue from repeated bending (minimum bending radius ≥100mm).

1. Avoid direct sunlight; install protective sleeves for outdoor hoses; 2. Inspect for bulges and cracks monthly; replace if the outer cover damage area exceeds 5% of the total surface.

2

High pressure rubber hose 10Ⅱ-1430

JB1885-77

Nitrile Rubber (Inner Tube) + High-Strength Steel Wire (Reinforcement) + Chloroprene Rubber (Outer Cover)

1. Abrasive wear of outer cover from contact with sharp structural components; 2. Fitting leakage due to vibration-induced loosening (vibration frequency 5-20Hz).

1. Install anti-wear pads at contact points; maintain a 5mm gap between hoses and sharp edges; 2. Re-torque fittings quarterly using a calibrated torque wrench (torque value: 35-40N·m).

3

High pressure rubber hose 10Ⅱ-26000

JB1885-77

Nitrile Rubber (Inner Tube) + High-Strength Steel Wire (Reinforcement) + Chloroprene Rubber (Outer Cover)

1. Reinforcement layer fatigue from long-term high-pressure operation (working pressure ≥25MPa); 2. Inner tube degradation from hydraulic oil contamination (particle size ≥10μm).

1. Monitor system pressure to avoid exceeding the rated pressure (31.5MPa); 2. Use hydraulic oil filters with 5μm precision; replace hoses every 24 months.

4

High pressure rubber hose 10Ⅱ-26000

JB1885-77

Nitrile Rubber (Inner Tube) + High-Strength Steel Wire (Reinforcement) + Chloroprene Rubber (Outer Cover)

1. Same as above; 2. Kinking damage from improper routing (kinking angle ≤15°).

1. Same as above; 2. Ensure hose routing is straight; use hose clamps to fix the routing interval at 500mm.

5

High pressure rubber hose 10Ⅱ-550

JB1885-77

Nitrile Rubber (Inner Tube) + High-Strength Steel Wire (Reinforcement) + Chloroprene Rubber (Outer Cover)

1. Fitting pull-off due to improper assembly (insertion depth <15mm); 2. Outer cover damage from frequent disassembly and assembly.

1. Ensure fitting insertion depth ≥15mm during assembly; 2. Minimize disassembly frequency; use quick couplings for frequently connected positions.

6

High pressure rubber hose 10Ⅱ-800

JB1885-77

Nitrile Rubber (Inner Tube) + High-Strength Steel Wire (Reinforcement) + Chloroprene Rubber (Outer Cover)

1. Thermal aging from high-temperature hydraulic oil (oil temperature >80℃); 2. Abrasive wear from drilling fluid splatter.

1. Monitor hydraulic oil temperature; install a cooling system if temperature exceeds 80℃; 2. Clean hoses weekly to remove drilling fluid residue.

7

High pressure rubber hose 16Ⅱ-22000

JB1885-77

Nitrile Rubber (Inner Tube, Thickened) + High-Strength Steel Wire (Reinforcement, 6 Layers) + Chloroprene Rubber (Outer Cover)

1. Reinforcement layer damage from high flow rate impact (flow rate >50L/min); 2. Corrosion of outer cover in offshore salt spray environments.

1. Control system flow rate within 50L/min; 2. Apply marine-grade anti-corrosion coating to the outer cover every 6 months.

8

High pressure rubber hose 16Ⅱ-22000

JB1885-77

Nitrile Rubber (Inner Tube, Thickened) + High-Strength Steel Wire (Reinforcement, 6 Layers) + Chloroprene Rubber (Outer Cover)

1. Same as above; 2. Fitting corrosion in saltwater environments.

1. Same as above; 2. Use 316L stainless steel fittings for offshore applications.

9

High pressure rubber hose assembly

HFJ2-P2-2-P-1

Nitrile Rubber (Inner Tube) + High-Strength Steel Wire (Reinforcement) + Chloroprene Rubber (Outer Cover) + Alloy Steel Fittings

1. Assembly joint leakage due to insufficient crimping pressure (crimping pressure <250MPa); 2. Fatigue of the hose near the fitting (bending angle <30°).

1. Ensure crimping pressure ≥250MPa during manufacturing; inspect for leakage under 1.5 times rated pressure; 2. Maintain a bending angle ≥30° at the fitting end; install a bending restrictor.

1

Quick coupling NPT 1/2

PA13.12.13.SP13.02.03

Alloy Steel (Body, Heat-Treated) + Nitrile Rubber (Seal Ring)

1. Seal ring wear from repeated plugging and unplugging (plugging frequency >50 times/month); 2. Thread damage from improper tightening (torque >45N·m).

1. Replace seal rings every 3 months or after 50 plugging cycles; 2. Tighten with a torque wrench (torque value: 35-40N·m); inspect threads for damage before assembly.

2

Quick coupling NPT 3/8

PA10.12.13.SP10.02.03

Alloy Steel (Body) + Nitrile Rubber (Seal Ring)

1. Ball valve jamming from hydraulic oil contamination (particle size ≥5μm); 2. Corrosion of the coupling body in high-humidity environments.

1. Use hydraulic oil filters with 5μm precision; clean the coupling before plugging; 2. Apply anti-corrosion grease to the outer surface and store in a dry environment when not in use.

3

Quick coupling NPT3/4

PA1912.13.SP19.02.03

Alloy Steel (Body) + Nitrile Rubber (Seal Ring)

1. High-pressure leakage due to seal ring aging; 2. Damage to the locking mechanism from impact.

1. Replace seal rings annually; inspect for leakage under 1.2 times rated pressure; 2. Install protective caps when not in use to avoid impact damage.

4

Quick coupling NPT3/4

PA25.12.13.SP25.02.03

Alloy Steel (Body) + Nitrile Rubber (Seal Ring)

1. Same as above; 2. Locking mechanism failure from repeated use (use frequency >30 times/month).

1. Same as above; 2. Inspect the locking mechanism monthly; replace if locking is not firm.

5

Pin connector NPT3/8

PA10.13

Alloy Steel (Body, Thread Rolled)

1. Thread wear from repeated assembly (assembly times >20 times); 2. Corrosion pitting in saltwater environments.

1. Use thread sealant during assembly; avoid over-tightening; 2. Use 316L stainless steel material for offshore applications; inspect for corrosion quarterly.

6

Protector cap NPT 3/8

SP10.03

Engineering Plastic (PA66) + Rubber Gasket

1. Rubber gasket aging and hardening from long-term exposure; 2. Cap deformation from improper storage.

1. Replace protector caps annually; 2. Store in a cool, dry environment; avoid stacking heavy objects.

7

Box connector NPT1/2

PA13.12

Alloy Steel (Body)

1. Thread damage from cross-threading during assembly; 2. Internal corrosion from hydraulic oil moisture (moisture content >0.1%).

1. Align threads correctly during assembly; avoid cross-threading; 2. Monitor hydraulic oil moisture content; use a dehydrator if exceeding 0.1%.

8

Dust-protecting plug NPT1/2

AP13.02

Silicone Rubber (Plug Body) + Steel Core

1. Rubber aging and cracking from high temperature (temperature >80℃); 2. Plug loss due to vibration.

1. Replace dust-protecting plugs every 6 months in high-temperature environments; 2. Use plugs with locking structures; inspect for tightness monthly.

9

BOX connector NPT3/8

PA10.12

Alloy Steel (Body)

1. Thread wear from repeated disassembly; 2. High-pressure deformation from overloading (pressure >31.5MPa).

1. Limit disassembly times to ≤20 times; replace if thread wear is detected; 2. Monitor system pressure to avoid exceeding rated pressure.

10

Dust-protecting plug NPT3/8

SP10.02

Silicone Rubber (Plug Body) + Steel Core

1. Rubber damage from contact with sharp objects; 2. Aging from UV exposure.

1. Avoid contact with sharp objects; 2. Store in a dark environment when not in use; replace annually.

11

Wahser 14

JB982-77

Carbon Steel Q235B (Zinc-Plated, Hardened)

1. Deformation from over-tightening (torque >40N·m); 2. Corrosion of zinc plating in humid environments (corrosion area >10%).

1. Tighten with a torque wrench (torque value: 25-30N·m); 2. Inspect for corrosion monthly; replace if corrosion area exceeds 10%.

12

Washer 22

JB982-77

Carbon Steel Q235B (Zinc-Plated, Hardened)

1. Abrasive wear from vibration-induced friction (vibration amplitude >0.1mm); 2. Zinc plating damage from improper handling.

1. Install anti-vibration washers under the washer; 2. Use proper tools to avoid scratching the zinc plating during installation.

1

Control box assembly

FY60-09.01.00

Aluminum Alloy (Housing, Anodized) + Electronic Components (Circuit Board, Sensors)

1. Circuit board short circuit from moisture ingress (relative humidity ≥90%); 2. Sensor failure from high vibration (vibration acceleration >5g).

1. Ensure the control box has IP65 protection level; inspect the seal gasket quarterly; 2. Install shock absorbers with damping coefficient 0.3-0.5; calibrate sensors every 6 months.

2

Antinock pressure gauge

YTN-100ZT

Stainless Steel 304 (Case) + Copper Alloy (Movement) + Glass (Dial Cover)

1. Movement damage from pressure shock (pressure rise rate >10MPa/s); 2. Dial fogging from moisture ingress.

1. Install a pressure buffer valve to limit pressure rise rate ≤5MPa/s; 2. Inspect for fogging monthly; replace the seal if fogging occurs; calibrate annually.

3

Hand operating multiple pass valve

DL40-d15L-4T-4C-4C

Alloy Steel (Valve Body) + Stainless Steel (Spool) + Nitrile Rubber (Seal Rings)

1. Spool jamming from hydraulic oil contamination (particle size ≥10μm); 2. Seal ring wear from repeated spool movement (operation times >100 times/day).

1. Use hydraulic oil filters with 5μm precision; clean the valve body quarterly; 2. Replace seal rings every 3 months; lubricate the spool with hydraulic oil before operation.

1

Oil cylinder

FYG 300/180-1335

Alloy Steel (Cylinder Barrel, Forged) + Chrome-Plated Steel (Piston Rod) + Cast Iron (Piston)

1. Piston rod scratch from dust and debris ingress (scratch depth >0.1mm); 2. Cylinder barrel wear from piston movement (clearance >0.2mm).

1. Install a dust-proof cover with IP54 protection level; polish scratches if depth ≤0.1mm; 2. Inspect piston-cylinder clearance quarterly; replace piston rings if clearance exceeds 0.2mm.

2

Sealing

UR2700P3000-PN

Polyurethane (PU, High-Wear Resistant)

1. Wear from piston rod movement (sliding speed >0.5m/s); 2. Aging from high-temperature hydraulic oil (oil temperature >80℃).

1. Control piston rod sliding speed ≤0.5m/s; 2. Monitor oil temperature; replace seals every 6 months in high-temperature environments.

3

Guiding ring 25x2.5x930

FR119

Polyoxymethylene (POM, Self-Lubricating)

1. Abrasive wear from piston movement (service life <12 months in high-load scenarios); 2. Deformation from high temperature (temperature >90℃).

1. Replace guiding rings every 12 months; 2. Avoid operating in environments above 90℃; install a cooling system if necessary.

4

O-ring 5.6x1.8

GB3452.1-92

Nitrile Rubber NBR (Oil-Resistant, Shore Hardness 70±5)

1. Compression set from long-term installation (compression rate >30%); 2. Damage from improper assembly (scratching).

1. Control compression rate between 15-25%; replace O-rings every 12 months; 2. Use specialized tools for assembly to avoid scratching.

5

O-ring 20x2.4

GB1235-76

Nitrile Rubber NBR (Oil-Resistant)

1. Fatigue cracking from cyclic pressure changes (pressure fluctuation >10MPa); 2. Corrosion from hydraulic oil additives.

1. Inspect for cracks monthly; replace if cracks are detected; 2. Use hydraulic oil compatible with NBR rubber; avoid mixing different additives.

6

O-ring 30x3.1

GB1235-76

Nitrile Rubber NBR (High-Pressure Resistant)

1. High-pressure extrusion damage (pressure >31.5MPa); 2. Aging from long-term storage (storage time >2 years).

1. Ensure system pressure ≤31.5MPa; use backup rings for high-pressure positions; 2. Store O-rings in a cool, dry environment; shelf life ≤2 years.

7

O-ring 140x5.3

GB3452.1-92

Nitrile Rubber NBR (Large-Size, Oil-Resistant)

1. Installation damage from uneven force; 2. Wear from radial movement of large components.

1. Install evenly; use a press-fit tool for large-size O-rings; 2. Inspect for wear quarterly; replace if wear depth exceeds 0.5mm.

8

Guiding ring 25x2.5x570

FR119

Polyoxymethylene (POM, Self-Lubricating)

1. Abrasive wear from piston movement; 2. Damage from foreign debris between the guiding ring and cylinder barrel.

1. Replace guiding rings every 12 months; 2. Clean the cylinder barrel before assembly to remove debris.

9

Sealing

UR1800P2050B-PN

Polyurethane (PU, High-Elasticity)

1. Wear from lateral pressure (lateral pressure >5MPa); 2. Aging from UV exposure (outdoor installation).

1. Control lateral pressure ≤5MPa; 2. Avoid outdoor installation; if necessary, install a protective cover.

10

Dust-proof ring

W9-180-N90

Rubber (NBR) + Steel Frame

1. Wear from piston rod movement (sliding times >1000 times/month); 2. Damage from impact during BOP handling.

1. Replace dust-proof rings every 6 months; 2. Install a buffer device to reduce impact during BOP handling.