BOMCO KB-75 Pulsation Dampener

1

Bladder

AK7535010200

Fluororubber (FKM) with high-pressure resistance, shore hardness 75±5

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

1. Replace annually (or 4000 operating hours); 2. Ensure upstream filtration to remove sharp debris; 3. Maintain nitrogen precharge within 0.3-0.5MPa.

2

Studded Assembly

AK7535020100

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

1. Pressure fatigue from long-term pulsation; 2. Corrosion from environmental exposure; 3. Weld seam damage from pressure surges.

1. Inspect welds via ultrasonic testing quarterly; 2. Touch up anti-corrosion coating if worn; 3. Monitor operating pressure to stay within API 7K limits.

3

Head

AK75350202

Carbon steel (Q355B) with precision machining

1. Seal wear leading to nitrogen/fluid leakage; 2. Corrosion from fluid contact; 3. Deformation from uneven fastener torque.

1. Tighten fasteners symmetrically; 2. Replace head gasket during maintenance; 3. Clean head sealing surface to remove debris.

4

Bottom Plug

AK75350101

Carbon steel (Q235A) with thread sealing structure

1. Thread wear from repeated disassembly; 2. Corrosion from fluid accumulation; 3. Loosening from pipeline vibration.

1. Apply thread sealant during installation; 2. Re-tighten after 100 operating hours; 3. Drain fluid regularly to avoid accumulation.

1

Double-scale Pressure Gauge 0-25MPa NPT1/4

380202052250006020

Brass (H62) internal mechanism, stainless steel (304) case, tempered glass lens

1. Inaccuracy from vibration; 2. Internal component wear from pressure cycles; 3. Lens damage from impact.

1. Calibrate annually per ISO 9001 standards; 2. Install vibration dampener if needed; 3. Use gauge cover to protect from impact.

2

Gauge Cover Assembly

AK7535020300

ABS plastic (high-impact resistance) with rubber gasket

1. Impact damage from on-site tools/debris; 2. Gasket aging leading to moisture ingress; 3. Fading from UV exposure (outdoor use).

1. Inspect for cracks monthly; 2. Replace rubber gasket annually; 3. Clean cover regularly to remove dust/debris.

3

Purge Valve

AK7535010001

Stainless steel (304) valve body, PTFE seal

1. Seal wear from debris; 2. Corrosion (offshore saltwater exposure); 3. Valve sticking from infrequent use.

1. Operate monthly to prevent sticking; 2. Flush valve after use to remove debris; 3. Lubricate valve stem quarterly with food-grade grease.

4

Needle Valve

AK7535010002

Brass (H62) valve body, stainless steel (304) needle, PTFE seal

1. Needle wear from repeated adjustment; 2. Seal damage from chemical exposure; 3. Clogging from debris in fluid.

1. Adjust gradually to avoid needle damage; 2. Use compatible fluids to prevent seal degradation; 3. Clean valve inlet regularly.

1

Ring Gasket R39 T508-5001

T508-5001

Graphite-reinforced metal, API 6A compliant, high-pressure resistance

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

1. Tighten fasteners to recommended torque; 2. Clean flange face before installation; 3. Replace gasket after each disassembly.

2

Gasket T514-1001

T514-1001

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

1. Compression fatigue; 2. Chemical degradation from fluid additives; 3. Surface scratches during assembly.

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

3

Pipe Tee 1/4″

T511-2001

Brass (H62) with precision threading, NPT 1/4″ standard

1. Thread wear from repeated assembly; 2. Corrosion from fluid contact; 3. Stress concentration at tee joints.

1. Use thread sealant during installation; 2. Torque to 180-220 N·m; 3. Avoid excessive pressure at tee connections.

4

Connector 1/4″

AK75350106

Brass (H62) with zinc plating, NPT 1/4″ threading

1. Plating wear leading to corrosion; 2. Thread damage from improper installation; 3. Loosening from pipeline vibration.

1. Clean threads before installation; 2. Apply anti-corrosion grease after installation; 3. Re-tighten after 150 operating hours.

1

Stud 1 1/2X4 3/4

T500-6002

High-strength alloy steel (12.9 grade)

1. Torsional stress during installation; 2. Fatigue from vibration; 3. Corrosion from environmental exposure.

1. Use torque wrench for precise installation (550-600 N·m); 2. Apply anti-corrosion grease to threads; 3. Replace after 2 service cycles.

2

Nut 1 1/2-8UN

T501-2001

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

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

1. Use with lock washers; 2. Apply thread locker (e.g., Loctite 243); 3. Avoid unnecessary disassembly.

3

Stud 1 1/4X4 1/4

T500-6003

High-strength alloy steel (10.9 grade)

1. Thread wear from improper alignment; 2. Fatigue from pressure pulsations; 3. Corrosion from fluid splashes.

1. Ensure proper alignment during installation; 2. Torque to 400-450 N·m; 3. Use protective caps to prevent fluid contact.

4

Nut 1 1/4-8UN

T500-2002

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

1. Corrosion in humid/offshore environments; 2. Vibration-induced loosening; 3. Thread deformation from over-tightening.

1. Apply anti-corrosion grease regularly; 2. Re-tighten after 100 operating hours; 3. Replace if thread damage is visible.

What equipment is the KB-75 pulsation dampener compatible with?

It is primarily designed for BOMCO F-1300/F-1600 mud pumps, but also compatible with other high-pressure fluid transfer systems (0-25MPa) in oil and gas drilling, mining, and industrial applications, adhering to API 7K and ISO 10439 standards.

How often should the nitrogen precharge be checked?

Check nitrogen precharge weekly using the pressure gauge. Maintain it within 0.3-0.5MPa; adjust via the needle valve if needed. Incorrect precharge reduces dampening efficiency and accelerates bladder wear, per BOMCO maintenance guidelines.

Can non-genuine gaskets be used for replacements?

No, non-genuine gaskets may not meet API 6A high-pressure standards, leading to leaks, pressure loss, and equipment damage. Always use BOMCO genuine gaskets (e.g., T508-5001, T514-1001) to ensure seal integrity and operational safety.