Jiangsu Haifa Machinery Manufacturing Co., Ltd.

Title: Jiangsu Haifa Specializes in API610 Pump Solutions for Refining and Chemical Industries

In refining and chemical production, pumps are the core equipment for fluid transportation. Many users often encounter issues such as low efficiency due to improper selection, frequent seal leakage, and high maintenance costs. API610 standard pumps, with their high reliability and long service life, have become the industry's preferred choice. Leveraging years of experience, Jiangsu Haifa has compiled a practical solution from selection to operation and maintenance to help address common pain points.

1. 

   Precise Selection Based on Working Conditions

Selection is the first step, and incorrect choices can directly lead to energy waste or equipment. We recommend following these steps:

1. Define medium characteristics: Record the temperature, viscosity, corrosiveness, and solid content of the medium. For example, high-temperature heavy oil requires heat-resistant materials, while media containing particles need wear-resistant designs.

2. Determine operating parameters: Calculate the required flow rate, head, and net positive suction head (NPSH). API610 pumps are classified into types such as OH, BB, and VS. OH-type pumps are suitable for low-head clean media, BB-type for high-pressure conditions, and VS-type for vertical installations.

3. Match sealing solutions: Choose single or double mechanical seals based on whether the medium is flammable or toxic. API682 standards provide detailed seal selection guidelines for reference.

1. Standardized Installation and Commissioning

Improper installation can shorten pump life. We emphasize three key points:

1. Base alignment: Control the alignment error between the pump and motor shaft within 0.05 mm; using a laser alignment tool can improve accuracy. The base must be horizontally fixed to avoid vibration during operation.

2. Piping design: The inlet pipeline should maintain a straight section to avoid sharp bends or cavitation; the outlet pipeline should be equipped with a check valve to prevent backflow from impacting the impeller.

3. Test run inspection: After jogging to confirm the correct rotation direction, gradually load to the rated conditions. Monitor bearing temperature (should not exceed 40°C above ambient) and vibration values (API610 requires less than 3.0 mm/s).

1. Daily Maintenance and Troubleshooting

Proper maintenance can extend pump life by over 30%. We summarize common issues and countermeasures:

1. Seal leakage: Check if the seal flush line is blocked and adjust the flush pressure to 0.1-0.2 MPa higher than the seal chamber pressure. Replace O-rings promptly if they are aged.

2. Excessive vibration: Inspect for impeller wear or insufficient bearing lubrication. API610 pumps recommend using ISO VG 46 or 68 lubricating oil, replaced every 2,000 hours.

3. Insufficient flow: Confirm that the inlet filter is not clogged and check if the impeller clearance has increased due to corrosion. Adjust the impeller axial position if necessary.

1. Common Issues and Precautions

1. Prime the pump before startup: Avoid dry running to prevent damage to the mechanical seal. For high-temperature media, preheat to near the operating temperature before starting.

2. Regularly switch standby pumps: Switch weekly to prevent rotor seizure from prolonged inactivity. Record operating data after switching to compare performance changes.

3. Spare parts management: It is recommended to stock easily worn parts such as bearings, seals, and O-rings. Ensure purchased parts match API610 original specifications, as non-standard parts may affect efficiency.

Following the above solutions can significantly improve pump operational stability. Jiangsu Haifa provides full-cycle services from selection consultation to after-sales support, ensuring efficient operation of your refining and chemical units.

(Source: Company News | Editor: Engineer Zhang)

Jiangsu Haifa Machinery Manufacturing Co., Ltd. was restructured from former Jiangsu Ligong Group Co., Ltd., Metallurgical Industry Ministry Steel Research Institute Jingjiang Stainless Steel Pump Valve Factory. It primarily produces API610 chemical process pumps—OH1, OH2, OH3, OH4 pumps; BB1~BB5 multi-stage pumps; VS1~VS6 barrel-type pumps; HES-type chemical process pumps; sixth-generation ultra-low carbon stainless steel high-quality molten urea pumps; urea hydrolyzer feed pumps; pitot tube pumps; rotary jet pumps; molten salt pumps; vertical submerged pumps; high-temperature magnetic drive pumps; canned motor pumps; slurry pumps; titanium tetrachloride pumps; strong self-priming pumps; lined fluorine pumps; leak-proof pumps; alkali pumps; axial flow pumps; forced circulation pumps; long-shaft vertical submerged pumps; and CQC Class 1 energy-efficient pumps.

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