Product Description
The SWP V-Flow Pump NV25-7S Vertical Pump is a compact and efficient multistage booster pump designed for high-demand industrial, commercial, and agricultural applications. Its vertical, in-line design saves space while providing exceptional reliability and performance.
Equipped with a 2 HP motor, the V-Flow Pump NV25-7S delivers a flow rate of up to 25 GPM and can handle pressures up to 362 PSI. Constructed with durable 304 stainless steel components, this pump ensures corrosion resistance and long-lasting operation in a wide range of environments. Maintenance-free cartridge mechanical seals and ANSI standard flanged connections make installation and servicing simple and efficient.
Certified to meet NSF/ANSI 61 and 372 standards, this pump is ideal for applications such as reverse osmosis, water boosting, filtration systems, hot and cold water circulation, and irrigation.
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V-Flow Pump NV25-7S
Vertical Multistage Booster Pump – 304 Stainless Steel
| Technical Specifications | |
|---|---|
| Rated Flow | 25 GPM |
| Stages | 7 |
| Max Working Pressure | 362 PSI |
| Max Inlet Pressure | 150 PSI |
| Motor Power | 2 HP |
| Motor Phase / Frequency | 1PH / 60Hz |
| Motor Frame | 56C |
| Motor Enclosure | T – TEFC |
| Pump Length (Flanged) | 17.40 in |
| Weight (Flanged) | 45 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 | 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 Instructions for V-Flow Pump NV25-7S Vertical Pump
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Preparation:
- Inspect the pump and motor for any visible damage during shipping. Report any damage to the carrier or dealer.
- Ensure the installation site is level, stable, and provides adequate ventilation for motor cooling and servicing.
- Verify that the pump model matches the system specifications and intended application.
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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 excessive strain on the pump.
- Install isolation valves on both the suction and discharge sides for easier maintenance and servicing.
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Piping Connections:
- Ensure piping matches the pump’s 1.5″ ANSI 150# flanged connections.
- Install proper gaskets to prevent leaks, ensuring they do not obstruct flow.
- Remove protective covers or caps from the flanges before installation.
- For hot water systems, include a bleed valve in the discharge line to relieve pressure during maintenance.
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Electrical Connection:
- Have a certified electrician verify that the electrical supply matches the motor’s specifications (2 HP).
- Ensure proper motor wiring and confirm counterclockwise rotation when viewed from the motor’s rear.
- If rotation is incorrect on a three-phase motor, reverse any two leads to correct it.
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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.
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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.
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Safety Precautions:
- Never operate the pump without water to avoid damage to internal components.
- Replace coupling guards after installation to prevent injuries.
- Ensure the pump is properly grounded and all connections are secure before starting.
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