BOMCO F-1300/1600 Discharge Strain and Accessory Manifold

1

Strain Cap

AH100101190201

Carbon steel (Q355B) with anti-corrosion coating

1. Corrosion from drilling fluid exposure; 2. Impact damage during maintenance; 3. Seal wear leading to fluid leakage.

1. Inspect for rust monthly and touch up coating if needed; 2. Handle with care during strain cleaning; 3. Replace O-ring seal when reinstalling.

2

O-ring165×7(GB3452.1-82)

530301011650070007

Nitrile rubber (NBR), GB3452.1-82 compliant, shore hardness 70±5

1. Compression set from long-term installation; 2. Chemical degradation from drilling fluid additives; 3. Surface scratches during assembly.

1. Replace every 6 months or after 3 strain cleanings; 2. Use compatible lubricants during installation; 3. Avoid sharp tools when handling.

3

Strain Assembly

AH100101190200

Stainless steel (304) filter element, carbon steel housing

1. Clogging from debris buildup; 2. Filter element wear from abrasive particles; 3. Corrosion of housing seams.

1. Clean filter element every 2 weeks (or when pressure differential exceeds 0.1MPa); 2. Replace element annually; 3. Inspect housing seams for leaks monthly.

4

Strain Housing

AH1001021101

Carbon steel (Q355B) with welded construction, anti-corrosion coating

1. Pressure fatigue from repeated discharge cycles; 2. Corrosion from acidic drilling fluid; 3. Weld seam damage from pressure surges.

1. Monitor operating pressure to stay within API 7K limits; 2. Use corrosion inhibitors in acidic fluid; 3. Inspect welds via ultrasonic testing quarterly.

1

Connection Pipe for Safety Valve

AH100101200200B3

Carbon steel (Q355B) with seamless construction

1. Pressure fatigue from over-pressure events; 2. Corrosion from fluid contact; 3. Misalignment leading to uneven stress.

1. Ensure proper alignment with safety valve; 2. Inspect for corrosion monthly; 3. Replace if pressure fatigue cracks are detected.

2

Support for Pressure Gauge

AH100101200100B2

Carbon steel (Q235A) with precision machining

1. Vibration-induced loosening; 2. Corrosion from environmental exposure; 3. Bending from improper gauge installation.

1. Tighten mounting fasteners after 100 operating hours; 2. Apply anti-corrosion grease; 3. Align gauge properly to avoid support bending.

3

Double-scale Pressure Gauge(YK-150)

380207202400211514

Brass (H62) internal components, stainless steel (304) case

1. Gauge inaccuracy from vibration; 2. Internal component wear from pressure cycles; 3. Case corrosion (offshore exposure).

1. Calibrate annually per ISO 9001 standards; 2. Install vibration dampeners if needed; 3. Protect gauge with a weatherproof cover offshore.

4

JA-3 Shear-type Safety Valve

AH0000060400

Alloy steel (4130) valve body, shear pin made of carbon steel

1. Shear pin fatigue from pressure fluctuations; 2. Valve seat wear from fluid debris; 3. Corrosion leading to valve sticking.

1. Replace shear pin after each over-pressure activation; 2. Flush valve quarterly to remove debris; 3. Lubricate valve stem annually with high-temperature grease.

1

KB-75 Pulsation Dampener

AK75350200(KB-75)

Carbon steel (Q355B) housing, rubber bladder

1. Bladder aging from pressure cycles; 2. Housing corrosion; 3. Internal damage from debris in fluid.

1. Inspect bladder for cracks monthly; 2. Maintain nitrogen precharge per manufacturer specs; 3. Ensure fluid is filtered to prevent debris entry.

2

Bladder

AH0000050101

Fluororubber (FKM) for high pressure and chemical resistance

1. Fatigue from repeated expansion/contraction; 2. Chemical degradation from drilling fluid; 3. Puncture from sharp debris.

1. Replace bladder every 12 months (or 4000 operating hours); 2. Use compatible drilling fluid additives; 3. Ensure strain assembly is functioning properly to filter debris.

3

Cover

AH0000050102

Carbon steel (Q235A) with anti-corrosion coating

1. Loosening from vibration; 2. Corrosion from environmental exposure; 3. Seal wear leading to nitrogen leakage.

1. Tighten cover bolts to specified torque; 2. Recheck tightness monthly; 3. Replace cover seal when nitrogen leakage is detected.

1

Discharge Elbow

AH100101200300B1

Carbon steel (Q355B) with seamless construction, anti-corrosion coating

1. Erosion from fluid turbulence; 2. Corrosion from drilling fluid; 3. Impact damage from on-site debris.

1. Ensure smooth fluid flow to reduce turbulence; 2. Inspect elbow interior for erosion quarterly; 3. Use protective sleeves in high-debris areas.

2

Flange

T508-1002

Carbon steel (Q355B) with flange face machining

1. Flange face wear from repeated assembly; 2. Corrosion; 3. Misalignment leading to uneven gasket pressure.

1. Clean flange face before assembly; 2. Use compatible gaskets; 3. Tighten bolts symmetrically per GB/T 1231.

3

Ring Gasket T508-5003

T508-5003

Graphite-reinforced metal, API 6A compliant

1. Compression set from over-tightening; 2. Damage from flange face debris; 3. Thermal fatigue from temperature changes.

1. Tighten bolts to recommended torque; 2. Clean flange face to remove debris; 3. Replace gasket after each disassembly.

4

Ring Gasket T508-5002 R44（3）

T508-5002 R44（3）

Graphite-reinforced metal, API 6A compliant

1. Same as Ring Gasket T508-5003; 2. Gasket misalignment leading to uneven wear.

1. Align gasket properly with flange grooves; 2. Follow same maintenance steps as T508-5003; 3. Inspect gasket for damage before installation.

5

Ring Gasket R35 T508-5005

T508-5005

Graphite-reinforced metal, API 6A compliant

1. Same as Ring Gasket T508-5003; 2. Chemical degradation from aggressive drilling fluid.

1. Use compatible drilling fluid; 2. Follow same maintenance steps as T508-5003; 3. Replace if gasket shows signs of degradation.

6

Ring Gasket R24 T508-5004

T508-5004

Graphite-reinforced metal, API 6A compliant

1. Same as Ring Gasket T508-5003; 2. Pressure-induced damage from over-pressure.

1. Monitor system pressure to avoid over-pressure; 2. Follow same maintenance steps as T508-5003; 3. Inspect gasket after pressure surges.

1

Stud 1-8UNC-6 1/2

T500-7006

High-strength alloy steel (10.9 grade)

1. Fatigue from vibration; 2. Thread wear from repeated assembly; 3. Corrosion from environmental exposure.

1. Apply Loctite 243 during installation; 2. Torque to 400-450 N·m; 3. Inspect for thread damage quarterly.

2

Nut 1-8UNC

T501-2006

High-strength alloy steel (10.9 grade) with zinc plating

1. Vibration-induced loosening; 2. Plating wear leading to corrosion; 3. Thread wear.

1. Use with lock washers; 2. Re-tighten after 150 operating hours; 3. Replace if rust or thread wear is visible.

3

Loctite 243

17050601010024300

Anaerobic adhesive (243 grade, medium strength)

1. Degradation from high temperature; 2. Contamination before application; 3. Expiration of service life.

1. Store in cool, dry environments (5-25℃); 2. Apply to clean, dry threads; 3. Use before expiration date and allow 24 hours for full curing.

4

Stud 1 1/8-8UN-7 1/2

T500-7008

High-strength alloy steel (12.9 grade)

1. Torsional stress during installation; 2. Fatigue from pressure cycles; 3. Thread corrosion.

1. Use torque wrench for precise installation; 2. Replace after 2 service cycles; 3. Apply anti-corrosion grease to threads.

5

Nut 1 1/8-8UN

T501-2003

High-strength alloy steel (12.9 grade) with zinc-nickel plating

1. Vibration-induced loosening; 2. Plating wear; 3. Thread wear from frequent disassembly.

1. Apply Loctite 243 for extra security; 2. Avoid unnecessary disassembly; 3. Clean threads after each use.

6

Stud 7/8-9UNC-6

T500-7007

High-strength alloy steel (10.9 grade)

1. Thread wear from improper installation; 2. Fatigue from vibration; 3. Corrosion from drilling fluid splashes.

1. Clean threads before installation; 2. Torque to 350-400 N·m; 3. Use protective caps to prevent fluid contact.

7

Nut 7/8-9UNC

T501-2008

High-strength alloy steel (10.9 grade) with zinc plating

1. Corrosion in humid environments; 2. Vibration-induced loosening; 3. Thread wear.

1. Apply anti-corrosion grease; 2. Use lock washers; 3. Replace if thread deformation is found.

Are these components compatible with both BOMCO F-1300 and F-1600 mud pumps?

Yes, all parts are engineered to fit both models, adhering to BOMCO OE specifications and API 7K standards. This ensures full interchangeability and seamless integration with the discharge manifold system of either mud pump.

How often should the strain assembly’s filter element be replaced?

Replace the filter element annually, or more frequently if it becomes heavily clogged (indicated by a pressure differential exceeding 0.1MPa). Regular replacement prevents debris buildup, protects downstream components, and maintains discharge efficiency per BOMCO guidelines.

What maintenance is required for the KB-75 pulsation dampener?

Inspect the bladder monthly for cracks or wear, and maintain nitrogen precharge at 0.3-0.5MPa (per manufacturer specs). Replace the bladder annually, and check the cover for leaks monthly. Flush the dampener quarterly to remove debris and ensure optimal performance.