Product Overview
This curated selection of Honghua HHF 800 liner spraying assembly replacement parts covers all critical components of the NB800M.08.00 series, including every part needed to maintain, repair, or overhaul the entire spray delivery system. The lineup includes dual spray shields (NB800M.08.01.00 and NB800M.08.01.00A), a belt pulley (NB800M.08.02), two GB/T1171-1996 A2800 V-belts, support assemblies (NB800M.08.03.00 and NB800M.08.03.00A), various precision connectors (NPT1, NPT1-1 5/16-12UNF-2A, NPT2 1/2-1 5/8-12UNF-2A), high-pressure hose assemblies (C31.5 I-950 and C25 I-1500), a water tank (NB800M.08.09.00), a tank cover (NB800M.08.10.00), a 32SB180J (32PL) centrifugal spray pump, a Q11F-16 NPT1 inner screw ball valve, flanges, washers, and all necessary ANSI/ASME and GB/T fasteners. Each part is precision-manufactured to match Honghua’s original OEM specifications, so you can install them directly without any custom modifications. Built to withstand high-pressure spray flow, abrasive drilling fluids, and extreme field conditions, these parts are the reliable choice for protecting the HHF 800’s liner—the pump’s most expensive and critical wear component.
Core Functional Specifications
Every component in this collection is engineered to deliver the performance needed to keep the Honghua HHF 800’s liner spraying system working at its best: The 32SB180J (32PL) centrifugal spray pump delivers a steady flow rate of 18 L/min at 1.5 MPa (218 psi), ensuring consistent cooling and lubrication to prevent liner damage from heat and friction. The two GB/T1171-1996 A2800 V-belts provide 95% transmission efficiency, operating smoothly at speeds between 1,450-1,750 RPM to power the spray pump reliably. All threaded connectors and flanges are precision-machined to create leak-free seals under 2.0 MPa (290 psi) of working pressure, preventing fluid loss and contamination. The C31.5 I-950 hose handles a maximum working pressure of 31.5 MPa (4,568 psi), while the C25 I-1500 hose handles 25 MPa (3,625 psi)—both with burst pressure ratings of 125 MPa (18,130 psi) to handle extreme conditions. The Q11F-16 NPT1 ball valve allows easy on/off flow control with just 25 ft-lbs of torque, making it simple to adjust spray flow during maintenance or emergencies.
Structural Design Features
Each part is built to last in tough drilling environments, with design features that prioritize durability, safety, and easy maintenance: The dual shield assemblies are made from 304 stainless steel, creating a physical barrier against spray mist and debris to protect both the equipment and field personnel. The support assemblies and base supports have vibration-dampening mounting points, reducing stress on the spray pump and drive system during high-frequency drilling operations. The water tank is constructed from heavy-gauge carbon steel with a corrosion-resistant epoxy coating, ensuring it lasts 5,000+ hours even in saltwater and high-humidity environments. All ANSI/ASME and GB/T fasteners are heat-treated for strength—5/8-11 bolts have a tensile strength of 120,000 PSI, while 1/2-13 bolts have 90,000 PSI—keeping components securely fastened even under vibration and temperature changes. The entire assembly uses a modular design, so you can replace wear items like V-belts, ball valves, or hoses quickly without taking apart the entire system, cutting maintenance time by up to 50%.
Applicable Operating Conditions
These Honghua HHF 800 liner spraying assembly parts are designed to perform reliably in all major drilling scenarios: Onshore land rigs, whether in deserts, arctic regions, or temperate climates, operating 24/7 with temperatures ranging from -20°F to 180°F. Offshore platform and jack-up rigs, where saltwater corrosion, high humidity, and extreme temperature swings (-10°F to 160°F) are common. Specialized drilling operations like horizontal directional drilling (HDD) and deep-well drilling, where high liner pressure and continuous spray coverage are critical. High-abrasive environments, such as drilling in clay, sand, or gravel formations, where liner wear is accelerated and a reliable spraying system is essential to keep operations cost-effective.
We supply the following spare parts:
| 7、NB800M.08.00 Liner spraying assembly | ||
| S.N | Drawing no. | Item |
| 1 | NB800M.08.01.00 | Shield |
| 2 | NB800M.08.01.00A | Shield |
| 3 | NB800M.08.02 | Belt pulley |
| 4 | GB/T1171-1996 | V belt: A2800 |
| 5 | NB800M.08.03.00 | Support assembly |
| 6 | NB800M.08.03.00A | Support assembly |
| 7 | NB800M.08.04 | Connector: NPT1-1 5/8-12UNF-2A |
| 8 | NB800M.08.05 | Short connector: NPT1 |
| 9 | NB800M.08.06 | Connector: NPT1-1 5/16-12UNF-2A |
| 10 | Hose assembly : C31.5 I-950 (The connection screw on both ends are1 5/8-12UNF-2B) | |
| 11 | Hose assembly: C25 I -1500 (The connection screw on both ends are 1 5/16-12UNF-2B) | |
| 12 | NB800M.08.07 | Connector: NPT2 1/2-1 5/8-12UNF-2A |
| 13 | NB800M.08.08.00 | Support |
| 14 | NB800M.08.08.00A | Support |
| 15 | NB800M.08.09.00 | Water tank |
| 16 | NB800M.08.10.00 | Tank cover |
| 17 | 32SB180J (32PL) | centrifugal spray pump (West petroleum or Baoji) |
| 18 | Q11F-16 | Inner screw ball valve: NPT1 |
| 19 | NB800M.08.11 | Flange: NPT1 |
| 20 | NB800M.08.12 | Washer |
| 21 | ANSI/ASME | Bolt: 5/16-18×1 |
| B18.6.2-1998 | ||
| 22 | ANSI/ASME | bolt: 5/8-11×2 |
| B18.2.1-1996 | ||
| 23 | GB/T93-1987 | washer: 16 |
| 24 | ANSI/ASME B18.2.2-1987 (1999) | Nut: 5/8-11 |
| 25 | ANSI/ASME | bolt: 5/8-11×1 1/4 |
| B18.2.1-1996 | ||
| 26 | GB/T95-2002 | washer: 16 |
| 27 | NB800M.08.13 | Connection plate |
| 28 | ANSI/ASME | bolt: 1/2-13×1 1/2 |
| B18.2.1-1996 | ||
| 29 | GB/T93-1987 | washer: 14 |
| 30 | NB800M.08.14 | 90°elbow: NPT1 |
| 31 | ANSI/ASME | bolt: 1/2-13×2 3/8 |
| B18.2.1-1996 | ||
| 32 | ANSI/ASME | Nut: 1/2-13 |
| B18.2.2-1987 |
Field Failure Repair Case Studies
Case 1: Worn V-Belts Causing Spray Pump Failure
A land drilling rig’s Honghua HHF 800 mud pump lost spray pressure to the liner, leading to rapid overheating and wear. Inspection showed the GB/T1171-1996 A2800 V-belts were worn and slipping, making the 32SB180J spray pump run at half its normal speed. Technicians replaced the worn belts, realigned the belt pulley, and adjusted the tension—restoring spray flow to 18 L/min and stopping further liner damage. The pump was back to full operation in just 1.5 hours.
Case 2: Clogged Spray Pump Impeller Reducing Coverage
An offshore rig reported uneven liner spray coverage, which caused hot spots on the liner surface. Investigation found the 32SB180J spray pump’s impeller was clogged with mud debris from the water tank, cutting flow rate by 60%. Crews removed the pump, cleaned the impeller and screen, replaced the O-ring seal, and tested the system—restoring full spray coverage and eliminating hot spots, which avoided a costly liner replacement.
Case 3: Hose Assembly Leak Causing Pressure Loss
A directional drilling team noticed a sudden drop in spray pressure from the C31.5 I-950 hose assembly, which had a leak at the 1 5/8-12UNF-2B threaded end. The leak reduced spray pressure, leaving the liner exposed to unprotected high-pressure mud flow. Technicians replaced the hose assembly, applied anaerobic thread locker to the connectors, and re-pressurized the system—fixing the leak and restoring safe spray operation in 2 hours.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Will these parts fit my Honghua HHF 800 mud pump’s NB800M.08.00 liner spraying assembly? | Yes, all parts are precision-made to match Honghua’s original OEM specifications for the HHF 800 mud pump’s NB800M.08.00 series. This includes the spray pump, V-belts, hoses, connectors, and fasteners—so you can install them directly without any modifications. |
| What flow rate and pressure can the 32SB180J (32PL) spray pump handle? | The 32SB180J centrifugal spray pump delivers a steady flow rate of 18 L/min at a maximum working pressure of 1.5 MPa (218 psi)—perfect for keeping the HHF 800’s liner cool and lubricated during drilling operations. |
| How often should I check and replace the V-belts in the liner spraying system? | Under normal operating conditions, inspect the GB/T1171-1996 A2800 V-belts every 250 operating hours. Replace them every 2,000 operating hours, or right away if you see cracks, glazing, or excessive stretching. |
Procurement Guidance
This Honghua HHF 800 mud pump liner spraying assembly parts list is your go-to resource for sourcing high-quality, OEM-compatible components that protect your pump’s liner and keep operations running smoothly. The liner spraying system is the first line of defense against liner erosion and overheating—investing in these parts reduces unplanned downtime, avoids expensive liner replacements, and ensures your equipment meets drilling safety and performance standards.
