Product Introduction
Our CSF-800 auxiliary parts package includes three fully coordinated component sets: KB-75 pulsation dampener spares (bladders, sealing rings, pressure gauges, valve components), a dedicated charging hose assembly (connectors, hoses, sealing hardware), and JA-3 shear relief valve parts (shear pins, plunger seals, bumpers, retainers). Crafted from high-pressure elastomers, heat-treated alloy steel, corrosion-resistant brass, and pressure-rated stainless steel, all components meet strict API 7K standards, making them the reliable choice for routine maintenance, emergency repairs, and full system overhauls for CSF-800 mud pumps.
Functional Specifications
- Pulsation Suppression: The KB-75 dampener bladder and sealing components absorb hydraulic shock, reducing pressure fluctuations by up to 48% and protecting pipelines, valves, and the CSF-800 pump from fatigue failure.
- Overpressure Protection: The JA-3 shear relief valve activates at calibrated pressure thresholds via precision shear pins, instantly relieving excess pressure to prevent catastrophic pump or fluid end damage.
- Safe Charging Capability: The dedicated charging hose kit enables secure, leak-free gas charging of the pulsation dampener, with threaded connectors and seals rated for 25MPa service pressure.
- Pressure Monitoring: The 0-25MPa pressure gauge provides real-time visibility of dampener pressure, allowing technicians to maintain optimal charging levels for peak performance.
- Reliable Sealing: Precision sealing rings, plunger seals, and gaskets maintain leak-free operation under continuous pressure cycling, eliminating fluid and gas leaks.
Structural Characteristics
These CSF-800 auxiliary components feature a rugged, service-friendly modular design: the KB-75 dampener uses a bolted studded assembly for easy bladder replacement, the JA-3 shear valve has a captive shear pin design for quick safety reset, and the charging hose uses standardized threaded connectors for universal fit. All parts are interchangeable with OEM hardware, allowing targeted replacement of worn components instead of full system swaps, reducing repair costs and downtime significantly.
Applicable Operating Conditions
These components are engineered for harsh drilling environments: onshore deep-well oil/gas drilling, offshore platform operations, geothermal drilling, and high-solid abrasive mud circulation. They tolerate extreme temperatures (-20°F to 220°F), continuous 25MPa pressure cycling, high-vibration rig conditions, and corrosive drilling fluids, making them suitable for remote land rigs, offshore vessels, and commercial drilling sites worldwide.
Maintenance & Servicing Recommendations
To maximize component lifespan and ensure safe operation, follow these industry-approved protocols: inspect pulsation dampener bladders and sealing rings every 300 operating hours for cracks, wear, or leaks, replacing damaged parts immediately; check shear relief valve shear pins and plunger seals quarterly, replacing worn components to maintain calibrated pressure protection; calibrate the 0-25MPa pressure gauge semi-annually to ensure accurate readings; inspect charging hose fittings and seals before each use, replacing damaged hoses to prevent charging hazards; clean valve components and pipe tees regularly to remove sediment buildup; and torque all UNC studs and nuts to OEM specifications to maintain pressure integrity.
- We supply the following spare parts:
| KB-75 Pulsation Dampener List Part | ||
| Item No. | Description | Part No. |
| Assembly drawing | CS33001-08.00 | |
| 1 | Sealing ring R39 | CS33001-08.01 |
| 2 | Bottom plug | CS33001-08.02 |
| 3 | Bladder | CS33001-08.04 |
| 4 | Studded assembly | CS33001-08.03 |
| 5 | Head | CS33001-08.05 |
| 6 | Steel pipe tee NPT1/4 | CS33001-08.11 |
| 7 | Close nipple NPT1/4 | CS33001-08.15 |
| 8 | Gauge cover | CS33001-08.10 |
| 9 | Purge valve | CS33001-08.08 |
| 10 | Pressure gauge (0-25Mpa) | CS33001-08.12 |
| 11 | Needle valve | CS33001-08.18 |
| 12 | Washer | CS33001-08.13 |
| R1 | Stud | 1 1/4″-12UNC-2A |
| R2 | Nut | 1 1/4″-12UNC-2B |
| R3 | Stud | T53-4002(AM33x2-M33x3x100) |
| R4 | Nut M33x3 | T57-2009 |
| Pulsation Dampener Charging Hose & Instruction | ||
| Item | Description | Part No. |
| Pulsation dampener charging hose | CS33001-31.10.00 | |
| 1 | Nut G5/8″ | CS33001-31.10.01 |
| 2 | Sealing connector | CS33001-31.10.02 |
| 3 | Hose, C-type, M14x1.5 | JB1887-77 |
| 4 | Connector | CS33001-31.10.03 |
| 5 | Gasket | CS33001-31.10.04 |
| 6 | Pipe plug | CS33001-31.10.05 |
| JA-3 Shear Relief Valve List | ||
| Item No. | Description | Part No. |
| JA-3 Shear relief valve | CS33003-00 | |
| 1 | Adapter bushing | CS33003-01 |
| 2 | Plain washer | CS33003-02 |
| 3 | Plunger seal | CS33003-03.00 |
| 4 | Body | CS33003-04 |
| 5 | Plunger stem | CS33003-05 |
| 6 | Bumper | CS33003-06 |
| 7 | Roll pin | CS33003-07 |
| 8 | Cover spring | CS33003-08 |
| 9 | Cover | CS33003-09 |
| 10 | Shear bar | CS33003-10 |
| 11 | Shear pin | CS33003-11A |
| 12 | Warning plate | CS33003-12 |
| 13 | Shear bar pin | CS33003-13 |
| 14 | Retainer ring | CS33003-14 |
| 15 | Name plate | CS33003-15B |
| 16 | Cotter pin 4×26 | GB91-86 |
| 17 | Nut M4 | GB41-86 |
| 18 | Cap screw M4x16 | GB67-86 |
| 19 | Bolt M10x110 | GB5780-86 |
| 20 | Nut M10 | GB41-86 |
| 21 | Cap screw M3x8 | GB67-86 |
Field Failure Repair Case Studies
Case 1: Ruptured Dampener Bladder Causing Pressure Instability
A CSF-800 mud pump experienced extreme pressure pulsations and pipeline vibration, traced to a ruptured KB-75 dampener bladder. Replacing the OEM-grade bladder and R39 sealing ring restored stable pressure regulation, eliminating pulsation-related equipment stress.
Case 2: Broken Shear Pin Disabling Overpressure Protection
A drilling rig’s JA-3 shear relief valve failed to activate during a pressure spike, due to a degraded shear pin. Installing a new OEM-spec shear pin and inspecting plunger seals restored full overpressure protection, preventing potential pump damage.
Case 3: Leaking Charging Hose Connector Hindering Dampener Charging
Technicians were unable to properly charge the pulsation dampener due to a faulty charging hose sealing connector. Replacing the connector and matching gasket created a tight seal, enabling safe and efficient dampener charging.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts compatible only with the CSF-800 mud pump? | Yes, all components are precision designed for the Sichuan Petroleum CSF-800 mud pump, matching the KB-75 pulsation dampener and JA-3 shear relief valve OEM specifications exactly. |
| What is the pressure rating of the pulsation dampener gauge? | The pressure gauge is calibrated for a 0-25MPa range, the standard operating pressure for the CSF-800 mud pump’s pulsation dampener system. |
| Does this kit include full parts for both dampener and shear valve? | Yes, it includes all essential spares for the KB-75 pulsation dampener, dedicated charging hose, and JA-3 shear relief valve, covering routine repairs and maintenance. |
Conclusion & Procurement Guidance
This CSF-800 mud pump pulsation dampener and JA-3 shear relief valve parts list is your definitive, API 7K-compliant resource for all auxiliary pressure system procurement, maintenance, and repair needs. It eliminates the risk of ordering ill-fitting, low-quality components that compromise safety and performance, provides clear part numbers and specifications for seamless, accurate ordering, and establishes a reliable technical standard for troubleshooting pulsation, leakage, and safety valve issues. Whether you are replacing a worn dampener bladder, servicing a faulty shear relief valve, restocking charging hose components, or performing routine pressure system maintenance, this guide provides all critical details to make informed, cost-effective purchasing decisions. Choosing these precision-engineered, field-proven components ensures your CSF-800 mud pump operates with stable pressure, reliable overpressure protection, and minimal downtime, even in the harshest drilling conditions. Reach out to secure these essential auxiliary parts and keep your CSF-800 mud pump operating safely and efficiently with OEM-equivalent components tailored to your exact equipment configuration.
