Product Introduction
This full HHF-1600 pulsation control parts collection includes three core modules: the KB-75 pulsation damper assembly (with diaphragms, body, fasteners, and gauges), dedicated damper charging hose kit, and JA-3 safety relief valve. Every component is precision-crafted to directly replace original factory parts, eliminating compatibility gaps and simplifying on-site repairs. Designed for routine preventive maintenance, emergency pressure control fixes, and full damper/relief valve overhauls, this kit provides a one-stop sourcing solution for durable, pressure-rated components built to withstand harsh drilling mud conditions and continuous high-pressure cycling.
Functional Description
- Pulsation Dampening: The KB-75 damper’s flexible diaphragm absorbs hydraulic shock and evens out mud pressure surges, ensuring steady flow and reducing stress on pump valves, liners, and pipelines.
- Overpressure Protection: The JA-3 relief valve acts as a fail-safe, activating at preset pressure thresholds to release excess mud pressure, preventing catastrophic pump or pipeline failure.
- Safe Pressure Charging: The specialized charging hose kit enables secure nitrogen charging of the damper, with leak-proof fittings and high-pressure tubing for precise pressure adjustment.
- Pressure Monitoring: A 0-25MPa pressure gauge and protective guard allow real-time pressure tracking, enabling proactive maintenance and early detection of system anomalies.
- Leak-Proof Sealing: High-pressure gaskets, seal washers, and threaded joints create tight, reliable seals, preventing gas leakage from the damper and mud seepage from the relief valve.
Maintenance & Care Recommendations
Follow these industry-standard protocols to maximize component lifespan and ensure reliable pressure control:
- Daily Inspection: Monitor the pressure gauge for stable readings, check for gas leaks around the damper diaphragm and charging hose, and inspect the relief valve for mud seepage.
- Weekly Maintenance: Tighten damper and relief valve fasteners to OEM torque specs, clean the pressure gauge guard, and test the bleeder valve for proper function.
- Monthly Service: Inspect the damper diaphragm for cracks or wear, check the relief valve shear pin for damage, and lubricate threaded fittings to prevent seizing.
- Quarterly Overhaul: Replace worn ring gaskets and seal washers, recalibrate the pressure gauge, and inspect the relief valve piston assembly for wear or debris buildup.
- Storage Guidelines: Store diaphragms and rubber hoses in a cool, dark area away from UV rays; coat metal fasteners with anti-corrosive oil to prevent rust during long-term storage.
We supply the following spare parts:
| HHF-1600 KB-75 Pulsation Damper Assembly | ||
| No. | P/N(HHF-1300/1600) | Description |
| 1 | 11-3161-2701 | Ring gasket, R39 |
| 2 | 11-3161-2702 | Plug |
| 3 | 11-3161-2703-00 | Diaphragm (bladder) |
| 4 | 11-3161-2704-00 | Dampener body |
| 5 | 11-3161-2705 | Cover |
| 6 | 11-3161-2706 | Tee, NPT1/4 |
| 7 | 11-3161-2707 | Joint, NPT1/4 |
| 8 | 11-3161-2708-00 | Guard, pressure gauge |
| 9 | 11-3161-2709-00 | Bleeder valve |
| 10 | 11-3161-2710-01 | Pressure, gauge,0~25MPa(0~3630PSi) |
| 11 | 11-3161-2710-02 | Check valve |
| 12 | 11-3161-2710 | Washer |
| R1 | 11-3161-2704-02 | Stud bolt, 1 1/2-8UN(12UNF)-2A*120 |
| R2 | 11-3161-2704-03 | Nut,1 1/2-8UN-2B (SPL) |
| R3 | 11-3161-2704-04 | Stud bolt, 1 1/4-8UN(12UNF)-2A*100 |
| R4 | 11-3161-2704-05 | Nut, 1 1/4-8UN-2B (SPL) |
| HHF-1600 Charging Hose of Damper | ||
| No. | P/N(HHF-1300/1600) | Description |
| 11-3161-2711-00 | Charging hose of damper | |
| 1 | 11-3161-2711-01 | Nut, 3/4-16UNF-2B |
| 2 | 11-3161-2711-02 | Inlet adapter |
| 3 | 11-3161-2711-03 | Adapter fitting |
| 4 | 11-3161-2711-04 | Seal washer |
| 5 | 11-3161-2711-05 | Pipe collar |
| 6 | 11-3161-2711-06 | Rubber pipe, 6I-2500 |
| HHF-1600 JA—3 Relief Valve | ||
| No. | P/N(HHF-1300/1600) | Description |
| 1 | 11-3161-2801 | Joint |
| 2 | 11-3161-2802 | Retainer ring |
| 3 | 11-3161-2803-00 | Piston assembly |
| 4 | 11-3161-2804 | Valve |
| 5 | 11-3161-2805 | Piston rod |
| 6 | 11-3161-2806 | Cushion |
| 7 | 11-3161-2807 | Elastic straight pin |
| 8 | 11-3161-2808 | Locking spring |
| 9 | 11-3161-2809 | Safety guard |
| 10 | 11-3161-2810 | Plate, shear pin |
| 11 | 11-3161-2811 | Shear pin |
| 12 | 11-3161-2812 | Warning plate |
| 13 | 11-3161-2813 | Pin |
| 14 | 11-3161-2814 | Retainer ring, steel wire |
| 15 | 11-3161-2815 | Nameplate |
| 16 | 11-3161-2816 | Pin, 4*26 |
| 17 | 11-3161-2817 | Screw, 8 (0.164) -32UNC-2A*16 |
| 18 | 11-3161-2818 | Nut, 8 (0.164) -32UNC-2B |
| 19 | 11-3161-2819 | Bolt, 3/8-16UNC-2A*105 |
| 20 | 11-3161-2820 | Nut, 3/8-16UNC-2B (SPL) |
| 21 | 11-3161-2821 | Screw, 5 (0.125) -40UNC-2A*8 |
Field Fault Repair Cases
Case 1: Damper Diaphragm Rupture & Pressure Loss
Fault Symptom: Sudden loss of damper pressure, excessive pump vibration, and erratic mud flow, with gas leakage from the damper body.
Root Cause: Long-term pressure cycling and mud abrasion caused the damper diaphragm to tear, breaking the pressure chamber seal.
Repair Solution: Replace the damaged diaphragm, install a new ring gasket, re-torque the damper cover fasteners, and recharge the unit to operating pressure. Vibration and flow stability were fully restored.
Case 2: Relief Valve Shear Pin Failure
Fault Symptom: Unintended pressure relief during normal operation, with mud leaking from the JA-3 relief valve and reduced pump discharge pressure.
Root Cause: Fatigue failure of the shear pin due to repeated pressure spikes, causing the valve to open prematurely.
Repair Solution: Replace the worn shear pin and retaining ring, clean the valve seat, and reassemble the relief valve to OEM specs. Normal pressure relief function was restored, with no unintended leakage.
Case 3: Charging Hose Leakage
Fault Symptom: Inability to maintain damper pressure, with nitrogen leakage from the charging hose fittings during pressure charging.
Root Cause: Worn seal washer and cracked rubber hose caused fitting leaks, preventing proper damper pressurization.
Repair Solution: Replace the seal washer and damaged charging hose, tighten all fittings, and perform a pressure test. Leakage was eliminated, and the damper held pressure consistently.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts compatible with both HHF-1600 and HHF-1300 mud pumps? | Yes, all pulsation damper, charging hose, and relief valve parts are engineered to OEM specifications for full cross-compatibility with HHF-1600 and HHF-1300 mud pumps. |
| What is the maximum pressure rating for the KB-75 pulsation damper? | The KB-75 damper is rated for a maximum working pressure of 25MPa (3630PSI), with the included pressure gauge calibrated to this full range for accurate monitoring. |
| Can I purchase individual components (diaphragm, shear pin, hose) instead of the full kit? | Absolutely, every spare part (diaphragm, shear pin, charging hose, gasket, etc.) is available for separate purchase with matching OEM part numbers for targeted repairs. |
Procurement Guidance
Investing in these Honghua HHF-1600 mud pump pulsation damper and spare parts ensures stable mud pressure, protects critical pump components from vibration damage, and provides reliable overpressure safety, drastically reducing unplanned downtime and long-term maintenance costs. Each component undergoes strict 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.
