High-Efficiency Submersible Sewage Pump, 220m³/h Flow Municipal Engineering Detailed Installation Manual

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High-Efficiency Submersible Sewage Pump, 220m³/h Flow Municipal Engineering Detailed Installation Manual

Introduction

In modern municipal engineering projects—ranging from urban drainage systems and wastewater treatment plants to flood control infrastructure—the high-efficiency submersible sewage pump has become an indispensable component. With a designed flow rate of 220 m³/h, this pump model is engineered for reliable, continuous operation in demanding environments while maintaining energy efficiency and low maintenance requirements.

This detailed installation manual provides step-by-step guidance for engineers, contractors, and facility managers to ensure safe, compliant, and optimal deployment of the 220 m³/h submersible sewage pump in municipal applications.

1. Product Overview

Key Specifications:

Flow Rate: 220 m³/h (±5% tolerance under rated conditions)

Head Range: Typically 10–35 meters (varies by model configuration)

Motor Power: 18.5 kW – 30 kW (380V, 50Hz, 3-phase)

Impeller Type: Anti-clogging single or double-channel vortex design

Pump Casing Material: Ductile cast iron or optional stainless steel (304/316)

Mechanical Seal: Dual-end face tungsten carbide seals with oil chamber protection

Temperature Limit: ≤40°C (medium), pH 5–9

Solid Handling: Capable of passing solids up to 50% of discharge port diameter (e.g., ~75 mm for DN150 outlet)

Note: Always verify exact model specifications with your supplier before installation.

2. Pre-Installation Checklist

Before beginning installation, confirm the following:

✅ Site Conditions

Sump pit dimensions meet minimum clearance requirements (typically ≥1.2× pump width)

Inlet and outlet piping aligned per manufacturer’s layout diagram

Adequate ventilation and access for maintenance

✅ Electrical Readiness

Power supply: 380V ±5%, 50Hz, grounded 3-phase system

Control panel equipped with overload, phase-loss, and leakage protection

Optional: Automatic control cabinet with level sensors (recommended for unattended operation)

✅ Lifting & Safety Equipment

Stainless steel guide rail system (if using auto-coupling)

Certified hoist or chain block (capacity ≥1.5× pump weight)

PPE: Waterproof boots, gloves, gas detector (for confined space entry)

3. Installation Steps

Step 1: Prepare the Sump Basin

Clean debris from the sump floor.

Ensure the base is level and free of sharp objects.

Install guide rails vertically (if using auto-coupling system) and secure with anchor bolts.

Step 2: Assemble the Discharge Pipe

Connect the discharge flange to the riser pipe using compatible gaskets and bolts.

For auto-coupling models: Attach the coupling base to the discharge elbow at the sump bottom.

Step 3: Lower the Pump

Secure the lifting chain or cable to the pump’s designated eye bolt.

Slowly lower the pump along the guide rails until it self-aligns and locks onto the coupling base.

Verify that the pump sits firmly without tilting.

⚠️ Never lift the pump by the power cable.

Step 4: Electrical Connection

Route the power cable through a waterproof conduit.

Connect to the terminal box inside the control panel per wiring diagram.

Perform insulation resistance test (>1 MΩ) before energizing.

Step 5: Commissioning Test

Fill the sump to operating level (above minimum submergence mark).

Briefly jog the motor to confirm rotation direction (clockwise when viewed from top).

Run continuously for 30 minutes; monitor vibration, noise, and temperature.

Check for leaks at seals and flange joints.

4. Operational Best Practices

Minimum Submergence: Always maintain liquid level above the motor cooling jacket.

Dry-Run Protection: Never operate without sufficient liquid—thermal overload may occur within minutes.

Regular Inspection:

Monthly: Check seal integrity and cable condition

Quarterly: Inspect impeller for wear or clogging

Annually: Replace mechanical seals if leakage >10 mL/day detected

5. Troubleshooting Guide

6. Maintenance & Service Life

With proper installation and routine care, a high-quality 220 m³/h submersible sewage pump can achieve:

Service life: 8,000–15,000 operating hours

MTBF (Mean Time Between Failures): >3 years in municipal service

Energy savings: Up to 15–25% vs. conventional pumps due to optimized hydraulic design

Conclusion

The 220 m³/h high-efficiency submersible sewage pump represents a robust, cost-effective solution for municipal wastewater management. By following this installation manual, operators can ensure maximum reliability, safety, and lifecycle performance—reducing both operational costs and environmental risk.

For technical support, custom configurations, or OEM partnerships, contact our engineering team today.