Product Introduction
We supply a complete, OE-compatible Bomco F800 mud pump spray pump assembly, including all 38 core components listed—from the centrifugal type spray pump to connectors, hoses, fasteners, and gaskets. Every part is manufactured to match the original equipment specifications exactly, ensuring seamless integration with the Bomco F800 mud pump without modifications. The assembly features a belt-driven centrifugal design, where the sheave and V-belt transmit power to the centrifugal pump, which draws cooling fluid from the water tank (AH080101080400) and delivers it to the mud pump’s critical components. All parts undergo strict quality control, including non-destructive testing (NDT) and pressure testing, to meet API 7K standards and ensure durability in harsh drilling conditions.
Function Instructions
The Bomco F800 spray pump assembly performs three essential functions that directly address industry pain points, ensuring the mud pump’s reliability and longevity:
- Targeted Cooling: The centrifugal spray pump delivers a steady flow of cooling fluid (up to 15 L/min) to the mud pump’s cylinder liners and pistons, reducing their operating temperature by 40-50% and preventing thermal deformation or damage. This is critical, as stoppage of cooling fluid can result in almost instant failure of piston rubbers and extensive liner damage.
- Flushing & Debris Removal: The assembly flushes away drilling mud, debris, and abrasive particles from the liner and piston surfaces, reducing friction and wear by 35% compared to uncooled/unflushed operation. This extends the service life of liners and pistons by up to 50%, lowering maintenance costs and downtime.
Structural Characteristics
The Bomco F800 spray pump assembly features a modular, robust design that prioritizes durability, easy installation, and low maintenance—aligned with the Bomco F800 mud pump’s structural design. Key structural features include:
- Core Pump Unit: The centrifugal type spray pump is constructed with a cast iron pump body and corrosion-resistant impeller, capable of withstanding pressures up to 1.6 MPa and temperatures ranging from -20°C to 120°C. It operates on the principle of centrifugal force, where the impeller’s rotation draws water from the tank and delivers it to the cylinder liner for cooling and lubrication[8].
- Transmission System: The sheave and V-belt form a reliable belt-driven system, with the V-belt designed for high tensile strength (≥1500 N) and resistance to oil and abrasion—ensuring consistent power transmission and a service life of 2,000+ hours.
- Connection & Sealing: All connectors made of high-pressure rubber with a reinforced steel core to prevent bursting under operating conditions. The support assembly and bracket provide stable mounting, reducing vibration by 25% during operation.
Applicable Working Conditions
The Bomco F800 spray pump assembly is engineered to withstand the harsh, variable conditions of oil and gas drilling, making it suitable for all scenarios where the Bomco F800 mud pump is deployed:
- Onshore and offshore drilling operations, including deepwell, horizontal, and geothermal drilling, where the mud pump operates under continuous high load and pressure .
- Extreme environmental conditions, including high humidity (up to 95%), low temperatures (-20°C to 60°C), and dusty/sandy work sites. The assembly’s components are treated with anti-corrosion coatings, and the water tank is sealed to prevent debris contamination.
- Aggressive drilling environments, where the mud contains abrasive particles or chemicals. The assembly’s flushing function prevents debris buildup, while corrosion-resistant materialsensure long-term performance.
- Continuous operation scenarios , where the assembly’s durable design and low maintenance requirements ensure reliable cooling without frequent shutdowns.
We supply the following spare parts:
| Bomco F800 Mud pump Spray pump assembly Parts List | ||
| ITEM | NAME | PART NUMBER |
| 1 | Belt Guard | AH080101080200 |
| AH080101080800 | ||
| 2 | Sheave | AH0801010801 |
| 3 | Support Assy. | AH080101080500 |
| 4 | Connector NPT1-G1 | AH1001010804 |
| 5 | Connector NPT1 | |
| 5A | Connector NPT1-M33X2 | AH100101051805 (3) |
| 6 | Connector G1-M33X2 | AH1001010806 |
| 7 | Connector ZG2 2/1” | |
| 8 | Connector ZG2 1/2-Z2 1/2 | |
| 9 | Hose Φ22×Φ37 | 140501010220100000 |
| 10 | Hose Connector Φ22×Φ37 | AH100101080900 (4) |
| 11 | 90°Elbow NPT 1X900 | AH1001010810 |
| 12 | Connection Plate | AH1001010811 |
| 13 | Water Tank | AH080101080400 |
| 14 | Tank Cover | AH080101080300 |
| 15 | Nut M16(GB41-86) | 420402080160200000-12 |
| 16 | Gasket | AH1001010814 |
| 17 | Flange NPT1 | AH1001010815 |
| 18 | Top lock screw M8 | 420103028308002000 |
| 19 | v Belt (GB1171-74) | 140301012034040000 A3404 |
| 20 | Plipe clamp No:3 | |
| 21 | Hose (中 22X中 37) | 140501010220100000 |
| 22 | 90°Elbow ZG2 1/2 | |
| 23 | Bolt M16X50 (GB5780-86) | 420201071116050000 |
| 24 | Spring gasket16 (GB93-87) | 420503011161600000 |
| 25 | Plain gasket16(GB95-85) | 420501060160100000 |
| 26 | Bolt M12X40 (GB5780-86) | 420201070712040000 |
| 27 | Spring gasket 12(GB93) | 420503011121600000 |
| 28 | Plain gasket12(GB95) | 420501060120100000 |
| 29 | Bolt M12X55 (GB5780) | 420201070612055000 |
| 30 | Nut（GB41-86)(M12) | 420402080120200000 |
| 31 | Centrifugal type spray pump | AH100101081600 |
| 32 | Stainless steel ball valve G1〃（Q11F-16) | 441305011104161000 |
| 33 | Bracket | AH080101080700 |
| 34 | Connection Plate | |
| 35 | Connector NPT2V2 | T513-1004 |
| 36 | Bolt M20X35 | |
| 37 | Spring gasket 20 | |
| 38 | Plain gasket20 |
On-Site Fault Repair Cases
Below are three real-world on-site repair cases, demonstrating how our OE-compatible parts and assembly solve common Bomco F800 spray pump issues quickly, minimizing downtime:
Case 1: No Cooling Fluid Flow. A field team noticed the Bomco F800 mud pump’s cylinder liners overheating , with no fluid coming from the spray pump. Inspection revealed a broken V-belt and worn sheave. Solution: Replace the V-belt and sheave with our OE-compatible parts, adjust the belt tension to 50-60 N, and refill the water tank. The spray pump resumed normal operation within 30 minutes, reducing liner temperature to 70°C.
Case 2: Fluid Leakage at Connections. Leakage was detected at the NPT1-G1 connector, causing reduced cooling flow and pressure. The issue was a worn gasket and loose bolt. Solution: Replace the gasket and tighten the bolt to the recommended torque (80 N·m), using the spring gasket and plain gasket to ensure a tight seal. Leakage stopped immediately, restoring full cooling performance.
Case 3: Centrifugal Pump Failure. The spray pump failed to deliver cooling fluid, traced to a clogged impeller in the centrifugal pump and a blocked hose . Solution: Disassemble the pump using our compatible tools, clean the impeller, replace the clogged hose with our OE part, and flush the water tank to remove debris. The pump was back in service within 1 hour, preventing further liner damage.
Maintenance Recommendations
To maximize the service life of the Bomco F800 spray pump assembly (target service life: 5+ years) and ensure consistent performance, follow these practical guidelines aligned with API 7K recommended practices and industry best practices:
- Daily Inspection: Check the water tanklevel before each shift—maintain fluid at 70-80% capacity to prevent the centrifugal pump from running dry (which can damage the impeller). Inspect hoses and connectors for leaks, and check the V-belt for wear or slack.
- Regular Maintenance: Every 1,000 hours of operation, replace the V-belt and gaskets . Clean the centrifugal pump impeller and water tank to remove debris buildup, and lubricate the sheave bearings with high-temperature grease (NLGI Grade 2).
- Seasonal Care: In cold environments, drain the water tank and hoses after use to prevent freezing and cracking. In hot environments, check the cooling fluid quality every 500 hours and replace it if it becomes contaminated with mud or debris.
- Part Replacement: When replacing components, always use OE-compatible parts (matching the listed part numbers) to ensure compatibility. Avoid generic parts, as they may have incorrect dimensions or inferior materials that lead to premature failure.
FAQ (Frequently Asked Questions)
| Question | Answer |
| Are these parts fully compatible with the Bomco F800 mud pump’s spray pump assembly? | Yes, every part in our assembly is manufactured to the exact OE specifications of the Bomco F800 mud pump’s spray pump assembly, including part numbers, dimensions, and material standards. They can be directly installed without modifications, ensuring seamless integration and reliable performance. |
| What is the recommended cooling fluid for the spray pump assembly? | We recommend using clean, demineralized water for most drilling conditions. In cold environments (below 0°C), mix water with a glycol-based antifreeze (50:50 ratio) to prevent freezing. Avoid using muddy or contaminated water, as it can clog the pump impeller and hoses, reducing cooling efficiency. |
| How often should I replace the V-belt and gaskets in the assembly? | We recommend replacing the V-belt and all gaskets every 1,000 hours of operation. If you notice signs of wear before that, replace them immediately to avoid pump failure and mud pump overheating. |
Purchase Guide
When purchasing parts or a complete assembly for the Bomco F800 mud pump’s spray pump, prioritizing OE compatibility, quality, and API 7K compliance is critical. Generic parts often have imprecise dimensions, inferior materials, or inadequate testing—leading to leaks, pump failure, and costly mud pump damage. Our assembly and parts undergo strict quality control, including pressure testing (up to 1.6 MPa for the centrifugal pump) and material verification, ensuring they meet API 7K and GB/T 17744-2015 standards, and deliver reliable performance in harsh drilling conditions.
