fire water pump

Here’s a structured and professional response to the customer’s fire pump selection inquiry, incorporating technical validation, practical considerations,
and clear next steps:

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Fire Pump Selection Validation: 50CDL20-40 Vertical Multistage Centrifugal Pump

1. Customer Requirements vs. Pump Specifications

 

Parameter	Customer Requirement	50CDL20-40 Specifications	Match Status
Power	10 HP (~7.5 kW)	7.5 kW-2p (AC220V, 60Hz, 3PH)	Exact Match
Flow Rate	6.5 L/s (23.4 m³/h)	23.4 m³/h	Exact Match
Head	80 meters	80 meters	Exact Match
Voltage/Phase	220V three-phase	AC220V, 3PH	Exact Match
Frequency	Not specified (assume 50Hz/60Hz)	60Hz (verify compatibility)	Needs Confirmation

 

Key Validation Points:

• Power, Flow, Head: Fully aligned with customer requirements.
• Frequency: Clarify if the customer’s power supply is 50Hz or 60Hz. The pump is rated for 60Hz; at 50Hz, performance (flow/head) may drop by ~17%. A VFD or 50Hz motor may be needed if 50Hz is mandatory.

2. Technical Suitability

• Application: Designed for water-based fire suppression systems (compatible with clean water).
• Construction:
  • SS304 Pump Head: Corrosion-resistant for long-term reliability.
  • Mechanical Seal: Minimizes leakage risk, critical for fire safety.
  • Cast Iron Base/Flange: Durable and cost-effective for standard installations.
• Performance:
  • 2900 RPM: Standard for centrifugal pumps, ensuring stable operation.
  • IP55 Motor: Dust and water-resistant, suitable for indoor/outdoor pump rooms.

3. Practical Considerations

• Installation:
  • Ensure self-priming capability or a foot valve if the pump is not gravity-fed.
  • Verify suction lift does not exceed manufacturer limits (typically 3–5 meters for centrifugal pumps).
• Redundancy: Recommend a backup pump per NFPA/local fire codes for critical systems.
• Maintenance:
  • Schedule annual mechanical seal inspections.
  • Test pump performance quarterly under no-load conditions.

4. Next Steps

1. Frequency Confirmation:
   • Contact the customer to verify their power supply frequency (50Hz/60Hz).
   • If 50Hz is required, propose alternatives:
     • Option 1: Use a Variable Frequency Drive (VFD) to maintain performance.
     • Option 2: Offer a 50Hz-rated motor (e.g., 50CDL20-40-50Hz variant if available).
2. Quote & Documentation:
   • Provide a detailed quotation including:
     • Pump price, tax, and shipping costs.
     • Warranty terms (typically 12–24 months).
     • Lead time for delivery.
   • Attach technical datasheets and certification (e.g., CE, UL, or local fire safety marks).
3. Support:
   • Offer onsite commissioning (if applicable) or virtual startup guidance.
   • Share a maintenance manual and spare parts list upfront.

5. Contact Information

For urgent inquiries or documentation requests:

• Email: sales01@cxflowmeter.com 
• WhatsApp: +86 180 4984 1995 

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