Batch of 250QJH180-136-125kW SS316 Submersible Pumps Tested for Congo

A batch of 250QJH180-136-125kW stainless steel submersible pumps has completed the scheduled testing process for a customer order from Congo. Each pump is configured with a rated flow of 180 m³/h, a rated head of 136 meters and a 125 kW motor operating at 380 V and 50 Hz.

The available test records indicate satisfactory results. Since the customer’s final application and detailed installation conditions have not been disclosed, this production update focuses only on the confirmed pump specifications, SS316 material configuration and testing status.

The batch of submersible pumps has the following technical configuration:

• Model: 250QJH180-136-125kW
• Rated flow: 180 m³/h
• Rated head: 136 m
• Motor power: 125 kW
• Rated voltage: 380 V
• Frequency: 50 Hz
• Pump material: SS316 stainless steel
• Destination market: Congo
• Testing status: Test records were satisfactory

The 250QJH series uses a multistage submersible pump configuration for water transfer duties requiring both substantial flow and high discharge head. The final operating point will depend on the installation depth, pipeline diameter, pipeline length, fittings, valves and total hydraulic losses of the customer’s system.

SS316 stainless steel was specified for this batch. Compared with conventional cast iron construction, SS316 provides better corrosion resistance in many industrial water-handling environments.

However, the correct material cannot be selected solely from the pump model or destination country. Water composition, temperature, chloride concentration, pH value and required operating time should be evaluated before confirming the material.

For water containing elevated chloride levels or for demanding marine applications, buyers should compare SS316 with SS316L, duplex 2205, super duplex 2507 and other available materials. The customer’s liquid conditions were not provided for this production update, so no specific application suitability is claimed.

Testing is an important stage in the production and quality-control process for large-capacity submersible pumps. The available test records for this batch were reviewed and reported as satisfactory.

No additional measured values relating to efficiency, current, vibration, noise or power consumption were supplied for publication. These values are therefore not presented or estimated in this report.

Depending on the contract and technical requirements, project documentation may include pump performance records, motor electrical inspection results, material documentation, dimensional drawings, packing information and operating instructions. The required inspection scope should be confirmed before production.

Although the 250QJH180-136-125kW model has defined rated parameters, it should not be selected for another project based on the model number alone. Buyers should provide the following information:

• Required flow and total dynamic head
• Liquid type and water quality
• Installation depth and operating water level
• Pipeline diameter and total pipeline length
• Site voltage, frequency and phase
• Required pump material
• Continuous or intermittent operating schedule
• Cable length and control-panel requirements

These details help verify the hydraulic duty, motor configuration, material selection and installation method before quotation and production.

The batch of 250QJH180-136-125kW SS316 submersible pumps for Congo has completed the scheduled testing process, with satisfactory test records reported. The confirmed configuration includes a rated flow of 180 m³/h, a rated head of 136 m, a 125 kW motor and a 380 V/50 Hz power supply.

Because the final application has not been disclosed, similar projects should undergo a separate technical review before this model is recommended.

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