Video of the closed liquefaction pump

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1.Operating Manual for Vertical Closed Liquefaction Pumps.

Vertical closed liquefaction pumps are essential components in industrial applications where efficient fluid transfer, high pressure, and reliable operation are required. These pumps are commonly used in refrigeration systems, chemical processing, oil and gas industries, and other applications involving liquefied gases or high-pressure liquids.

This operating manual provides detailed instructions on the installation, operation, maintenance, and troubleshooting of vertical closed liquefaction pumps. Proper adherence to these guidelines ensures optimal performance, longevity, and safety.

2.Safety Precautions.

Before operating the vertical closed liquefaction pump, ensure all safety measures are followed:

Personal Protective Equipment (PPE): Wear gloves, safety glasses, and protective clothing.

Pressure Relief: Verify that pressure relief valves are functional before startup.

Electrical Safety: Ensure proper grounding and insulation to prevent electrical hazards.

Leak Checks: Inspect for leaks in the pump casing, valves, and piping connections.

Emergency Shutdown: Familiarize yourself with emergency stop procedures.

3. Installation Guidelines.

3.1. Pump Positioning.

The pump must be installed vertically, with the motor positioned above the pump casing.

Ensure the foundation is stable and vibration-free.

Align the pump shaft precisely to prevent excessive wear.

3.2. Piping Connections.

Use compatible piping materials to prevent corrosion.

Install isolation valves for maintenance purposes.

Ensure suction and discharge lines are properly supported to avoid strain on the pump.

3.3. Electrical Connections.

Follow the manufacturer’s wiring diagram for motor connections.

Verify voltage and phase compatibility before energizing the pump.

Install overload protection devices to prevent motor damage.

4. Startup Procedure.

4.1. Pre-Startup Checks.

Ensure the pump is primed (if required).

Check lubrication levels in bearings and seals.

Confirm all valves (suction, discharge, and bypass) are in the correct positions.

5. Operating Valves in a Vertical Pump System.

Proper valve operation is critical for controlling flow and pressure in a vertical closed pump system.

5.1. Types of Valves Used.

Isolation Valves: Used for maintenance and shutdown.

Check Valves: Prevent backflow and protect the pump.

Pressure Relief Valves:Ensure system safety by releasing excess pressure.

Control Valves:Regulate flow rates as needed.

6. Conclusion.

Proper operation and maintenance of a vertical closed liquefaction pump are crucial for efficiency and longevity. By following this manual, operators can ensure safe and reliable performance while minimizing downtime.

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NINGBO KLAUS UNION CO.,LTD

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Main Product: pumps, mixers, valves, agitators, Centrifugal Pumps , Propeller pump

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