Product Introduction
This full HHF-1600 discharge manifold parts collection covers all key components of the pump’s discharge system, including suction dampeners, filter screen assemblies, discharge elbows, crosses, flanges, high-pressure stud bolts, nuts, pressure gauges, relief valves (JA-3), pulsation dampeners (KB-75), gaskets, O-rings, and sealants. Each component is precision-crafted to directly replace original factory parts, eliminating compatibility gaps and simplifying on-site assembly, maintenance, and emergency repairs. Designed for routine preventive maintenance, discharge system overhauls, and emergency leakage or clogging fixes, this kit provides a one-stop sourcing solution for durable, high-pressure resistant parts built to withstand the abrasive and high-pressure conditions of drilling mud transmission.
Functional Description
- High-Pressure Mud Transmission: Discharge elbows, crosses, and flanges form a sealed fluid transmission pathway, ensuring stable delivery of high-pressure mud from the pump to downstream pipelines without leakage.
- Contaminant Filtration: Filter screen assemblies capture abrasive particles, sand, and debris in the mud, preventing pipeline clogging and damage to downstream equipment.
- Pressure Stabilization & Protection: Suction dampeners and KB-75 pulsation dampeners absorb pressure fluctuations, while JA-3 relief valves act as a fail-safe to release excess pressure, protecting the discharge system from overpressure damage.
- Real-Time Pressure Monitoring: High-precision pressure gauges (0~60MPa/0~8700PSI, 0~6000PSi) enable real-time monitoring of discharge pressure, helping operators detect anomalies and conduct proactive maintenance.
- Leak-Proof Sealing: Custom gaskets (R27, R35, R44), O-rings (165*7.0G), and sealants create tight, reliable seals at all connection points, eliminating high-pressure mud leakage.
Maintenance & Care Recommendations
Follow these industry-standard protocols to maximize component lifespan and ensure stable operation of the discharge manifold system:
- Daily Inspection: Check pressure gauges for stable readings, inspect flange and joint connections for mud leakage, and visually check filter screens for obvious clogging.
- Weekly Maintenance: Tighten stud bolts and nuts to OEM torque specifications, clean filter screens to remove surface debris, and inspect gaskets and O-rings for wear or damage.
- Monthly Service: Replace worn gaskets, O-rings, and sealants, thoroughly clean filter screen assemblies, and test the JA-3 relief valve and KB-75 damper for proper function.
- Quarterly Overhaul: Inspect discharge elbows, crosses, and flanges for erosion or cracks, calibrate pressure gauges, and replace severely worn filter screens and fasteners.
- Storage Guidelines: Store metal components (flanges, bolts, elbows) in a dry, dust-proof area with anti-rust oil coating; store gaskets, O-rings, and sealants in a cool, dry environment away from UV light and high temperatures.
- We supply the following spare parts:
| HHF-1600 Suction Damper | ||
| No. | P/N(HHF-1300/1600) | Description |
| 1 | 11-3161-0533-01 | Diaphragm |
| 2 | 11-3161-0533-02 | End cover |
| HHF-1600 Discharge Filter Screen and Assistant Pipe (1) | ||
| No. | P/N(HHF-1300/1600) | Description |
| 1 | 11-3161-2401-00 | Filter screen assembly |
| 2 | B34521 -165-700-69 | O ring, 165*7.0G |
| 3 | 11-3161-2402 | Discharge Elbow |
| 4 | 11-3161-25 | Flange 5 1/8*35 |
| 5 | 11-3161-23 | Gasket, R44 |
| 6 | 11-3161-2403 | Stud Bolt, 1 1/2-8UN(12UNF)-2A*128 |
| 7 | 11-3161-2404 | Nut, 1 1/2-8UN-2B (SPL) |
| 8 | 11-3161-1510 | Pressure gauge, 0~60MPa(0~8700PSi) |
| 9 | 11-3161-2201-03 | Bushing |
| 10 | 11-3161-2201-00 | Seat, pressure gauge |
| 11 | 11-3161-2206 | Gasket, R27 |
| 12 | 11-3161-2203-00 | Discharging cross |
| 13 | 11-3161-0546 | Sealant |
| 14 | 11-3161-2204 | Stud Bolt, 1 1/16-8UN-2A*170 |
| 15 | 11-3161-2205 | Nut, 1 1/16-8UN-2B (SPL) |
| 16 | 11-3161-2202-00 | Pipe, relief valve |
| R1 | 11-3161-2800 | Relieve valve JA-3 |
| R2 | 11-3161-2700 | KB-75 damper |
| HHF-1600 Discharge Filter Screen and Assistant Pipe (2) | ||
| No. | P/N(HHF-1300/1600) | Description |
| 1 | 11-3161-2401-00 | Filter screen assembly |
| 2 | B34521 -165-700-69 | O ring 165*7.0G |
| 3 | 11-3161-2402 | Discharge elbow |
| 4 | 11-3161-25 | Flange, 5 1/8*35 |
| 5 | 11-3161-23 | Gasket R44 |
| 6 | 11-3161-2403 | Stud Bolt, 1 1/2-8UN(12UNF)-2A*128 |
| 7 | 11-3161-2404 | Nut, 1 1/2-8UN-2B (SPL) |
| 8 | 11-3161-2501 | Pressure gauge, union type, 0~6000PSi |
| 9 | 11-3161-2202-1 | Seat, pressure gauge |
| 10 | 11-3161-2204-1 | Gasket, R35 |
| 11 | 11-3161-2203-1 | Discharge cross |
| 12 | 11-3161-2502 | Sealant |
| 13 | 11-3161-2205-1 | Stud Bolt, 1 1/8-8UN(12UNF)-2A*90 |
| 14 | 11-3161-2206-1 | Nut, 1 1/8-8UN-2B (SPL) |
| 15 | 11-3161-32-1 | Flange, blind, 5 1/8*35 |
| R2 | 11-3161-2700 | KB-75 damper |
Field Fault Repair Cases
Case 1: High-Pressure Leakage at Flange Connections
Fault Symptom: Mud leakage at the discharge flange connection, reduced discharge pressure, and mud buildup around the joint, posing safety hazards.
Root Cause: Worn R44 gasket and loose stud bolts, causing the seal to fail under high pressure.
Repair Solution: Replace the worn R44 gasket, apply fresh sealant, retighten the stud bolts to OEM torque specs, and conduct a pressure test. Leakage was fully eliminated, and discharge pressure returned to normal.
Case 2: Filter Screen Clogging & Reduced Flow
Fault Symptom: Significant drop in discharge flow, increased pump load, and abnormal noise, with pressure gauge readings fluctuating abnormally.
Root Cause: Filter screen assembly clogged with abrasive mud particles, restricting mud flow through the discharge manifold.
Repair Solution: Remove and clean the filter screen assembly, replace damaged O-rings, and reinstall the component. Discharge flow was restored, and pump load returned to normal levels.
Case 3: Relief Valve Malfunction & Overpressure
Fault Symptom: Pressure gauge showing excessive discharge pressure (exceeding 60MPa), with the JA-3 relief valve failing to release excess pressure, risking pipeline damage.
Root Cause: Internal jamming of the JA-3 relief valve due to mud debris, preventing it from activating at the preset pressure threshold.
Repair Solution: Disassemble, clean, and reassemble the JA-3 relief valve, replace worn internal components, and recalibrate the pressure setting. The relief valve resumed normal operation, and system pressure stabilized within the safe range.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these discharge manifold parts compatible with both HHF-1600 and HHF-1300 mud pumps? | Yes, all discharge manifold components are engineered to OEM specifications for full cross-compatibility with Honghua HHF-1600 and HHF-1300 quintuple mud pumps, requiring no modifications for installation. |
| What is the maximum working pressure rating of these discharge manifold parts? | These parts are rated for a maximum working pressure of 60MPa (8700PSi), matching the standard operating pressure of HHF-1600/1300 mud pump discharge systems. |
| Can I purchase individual components (filter screens, gaskets, relief valves) instead of the full kit? | Absolutely, every component (filter screen assemblies, gaskets, O-rings, stud bolts, relief valves, pressure gauges) is available for separate purchase with matching OEM part numbers for targeted repairs. |
Procurement Guidance
Investing in these Honghua HHF-1600 mud pump discharge manifold parts ensures stable high-pressure mud transmission, prevents leakage and clogging failures, protects the entire discharge system and downstream equipment, and drastically reduces unplanned downtime and long-term maintenance costs. Each component undergoes strict high-pressure testing, wear resistance testing, and fit verification to meet API 7K drilling standards, delivering OEM-equivalent performance and durability in the harshest drilling conditions.
