Product Description

The V-Flow Pump NV120-3-2SS is a high-efficiency, ten-stage vertical booster pump designed for industrial, commercial, and agricultural applications. Its vertical, in-line design saves space while delivering reliable performance in demanding environments.

Motor Options

• Single-Phase Motor

  • Ideal for locations without three-phase power
  • Same flow (up to 120 GPM) and pressure (up to 232 PSI) as three-phase models
  • Slightly lower electrical efficiency and better suited for lighter duty cycles

• Three-Phase Motor

  • Standard for commercial and industrial sites
  • Higher electrical efficiency and smoother continuous operation

This pump is well-suited for reverse osmosis, washing systems, water treatment, power plants, boiler systems, water boosting, irrigation systems, sprinkler systems, and hot and cold water circulation.

The V-Flow Pump NV120-3-2SS combines precision engineering and dependable performance, making it a trusted choice for a wide range of water handling needs.

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V-Flow Pump NV25-7S

Vertical Multistage Booster Pump 304 Stainless Steel

Technical Specifications Rated Flow 120 GPM Stages 3-2 Max Working Pressure 232 PSI Max Inlet Pressure 150 PSI Motor Power 7.5 HP Motor Phase / Frequency 1PH or 3PH / 60Hz Motor Frame 2130C Motor Enclosure T – TEFC Pump Length (Flanged) 25.53 in Weight (Flanged) 124 lbs

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Construction & Design Features (304 Stainless Steel Model)

Component Material (304 SS Models) Motor Bracket Cast Iron Pump Head 304 Stainless Steel Impeller 304 Stainless Steel Diffuser 304 Stainless Steel Neck Ring Carbon Reinforced Teflon Shaft 431 Stainless Steel Casing 304 Stainless Steel O-Ring EPDM Pump Base 304 Stainless Steel Base Plate Cast Iron Mechanical Seal Silicon Carbide/Silicon Carbide/EPDM

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Installation Manual

Installation Instructions for V-Flow Pump NV120-3-2S Vertical Pump

1. Preparation:
   • Inspect the pump and motor for damage during shipping. Report any visible damage to the carrier or dealer.
   • Ensure the installation site is level, stable, and provides sufficient space and ventilation for motor cooling and servicing.
   • Verify that the pump model matches the system requirements.
2. Mounting the Pump:
   • Secure the pump base to a solid, flat surface to prevent vibrations during operation.
   • Align and support the suction and discharge piping to avoid strain on the pump.
   • Install isolation valves on both the suction and discharge sides for easier maintenance.
3. Piping Connections:
   • Ensure piping matches the pumps 3″ ANSI 150# flanged connections.
   • Install gaskets to prevent leaks, ensuring they do not obstruct flow.
   • Remove protective covers or caps from the flanges before installation.
   • For hot water applications, install a bleed valve in the discharge line to relieve pressure during maintenance.
4. Electrical Connection:
   • Have a certified electrician verify that the electrical supply matches the motors specifications (10 HP, three-phase).
   • Ensure proper motor wiring and confirm counterclockwise rotation when viewed from the motors rear.
   • If the rotation is incorrect, reverse any two leads on a three-phase motor to correct it.
5. Priming the Pump:
   • Remove the fill plug and use a funnel to fill the pump casing with water.
   • Open the vent plug to allow air to escape as the pump fills with water.
   • Re-seal the vent plug and fill plug once a steady stream of water flows from the vent.
6. Initial Testing:
   • Open the suction valve fully and partially open the discharge valve.
   • Apply power to the motor and monitor for smooth operation without noise or vibration.
   • Gradually open the discharge valve to achieve desired operating conditions.
7. Safety Precautions:
   • Never operate the pump without water, as it can cause damage to internal components.
   • Replace coupling guards after installation to prevent injuries.
   • Ensure the pump is properly grounded and connections are secure before starting.