V-Flow Pump NV45-4S

V-Flow Pump NV45-4S

Authorized Crystal Quest Water Filters Dealer | Full Vendor Warranty Included

Customers rate us 4.6/5 based on 413 reviews.
$6,734.99
$6,734.99
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Motor: Single-Phase Motor (1PH)
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V-Flow Pump NV45-4S

Crystal Quest Water Filters

V-Flow Pump NV45-4S

$6,734.99
V-Flow Pump NV45-4S

Crystal Quest Water Filters

V-Flow Pump NV45-4S

$6,734.99
Motor: Single-Phase Motor (1PH)
  • Description
  • Why Buy From Us

Product Description

The V-Flow Pump NV45-4S is a high-efficiency, four-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 45 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 NV45-4S 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 NV45-4S

Vertical Multistage Booster Pump – 304 Stainless Steel

Technical Specifications

Rated Flow 45 GPM
Stages 4
Max Working Pressure 232 PSI
Max Inlet Pressure 118 PSI
Motor Power 3 HP
Motor Phase / Frequency 1PH or 3PH / 60Hz
Motor Frame 182TC
Motor Enclosure T - TEFC
Pump Length (Flanged) 18.35 in
Weight (Flanged) 87 lbs

Construction Materials

Wetted Components 304 Stainless Steel
O-Rings EPDM
Mechanical Seal Silicon Carbide/Silicon Carbide/EPDM
Motor Bracket & Base Plate Cast Iron

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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 Manual

Installation Instructions for V-Flow Pump NV45-4S

  1. Preparation:
    • Inspect the pump and motor for visible damage during shipping. Report any issues to the carrier or dealer immediately.
    • Ensure the installation site is level, stable, and provides adequate space and ventilation for motor cooling and maintenance.
    • Verify that the pump model and motor specifications match the system requirements and application.
  2. Mounting the Pump:
    • Secure the pump base to a flat, solid surface to minimize vibrations during operation.
    • Align and support the suction and discharge piping to prevent excessive strain on the pump.
    • Install isolation valves on both the suction and discharge sides for easier servicing and maintenance.
  3. Piping Connections:
    • Ensure piping matches the pump’s 2" ANSI 150# flanged connections.
    • Install gaskets to prevent leaks and ensure proper sealing.
    • Remove any protective covers or caps from the flanges before installation.
    • Include a bleed valve in the discharge line for hot water systems to relieve pressure during servicing.
  4. Electrical Connection:
    • Have a certified electrician verify the electrical supply matches the motor’s specifications (5 HP, three-phase).
    • Ensure correct motor wiring and confirm counterclockwise rotation when viewed from the motor’s rear.
    • If rotation is incorrect, reverse any two leads on a three-phase motor to correct it.
  5. Priming the Pump:
    • Remove the fill plug and fill the pump casing with water using a funnel.
    • Open the vent plug to allow air to escape as the pump fills with water.
    • Re-seal the vent and fill plugs once a steady stream of water flows from the vent.
  6. Initial Testing:
    • Fully open the suction valve and partially open the discharge valve.
    • Apply power to the motor and monitor for smooth operation without unusual noise or vibration.
    • Gradually open the discharge valve to achieve the desired operating conditions.
  7. Safety Precautions:
    • Never operate the pump without water to avoid damaging internal components.
    • Replace coupling guards after installation to ensure operator safety.
    • Ensure the pump is properly grounded and all connections are secure before starting.

Why Choose Green Vista Living


At Green Vista Living, we’re passionate about providing top-quality renewable energy and eco-friendly products that not only enhance your life but also help protect the planet. We’ve built our business with one mission in mind: to be the go-to destination for renewable energy solutions, outdoor gear, and off-grid supplies. When you shop with us, you’re not just getting innovative products—you’re joining a community that’s committed to sustainability.

We Put Our Customers First


As a small, dedicated team, we care deeply about your experience. Unlike large, faceless online companies, Green Vista Living offers a personal touch in everything we do. We're here for you from start to finish—whether you need product advice, support after a purchase, or just have questions. Our knowledgeable customer service team is always just a phone call or email away, ready to assist you in any way possible.

We Share Your Passion for the Planet


Our love for the outdoors and sustainable living runs deep. Most of our team hails from the mountains of Colorado, where renewable energy and the environment are part of daily life. So when you call Green Vista Living, you’ll speak directly with an expert who understands both the technical side of renewable products and the lifestyle they support. Whether you’re looking for solar generators, EV chargers, or any of our eco-friendly offerings, you can trust us to guide you with expertise and passion.

Trusted Industry Experts


Our close partnerships with the best brands in renewable energy and outdoor gear give us insider knowledge that you won’t find anywhere else. We’ve taken the time to carefully select products that stand out for their quality and reliability. At Green Vista Living, we believe in understanding our products inside and out so that we can help you make the right choice with confidence.

More Reasons to Love Green Vista Living


Price Match Guarantee: Thanks to our partnerships, we offer the best prices around. If you find a better deal, we’ll refund the difference.


Free Shipping: We offer free shipping on most orders to the lower 48 U.S. states, making your shopping experience even easier.


100% Secure Ordering: Our site uses SSL Encryption technology to keep your payment and personal information safe and secure.


Volume Discounts: For large orders, we’re happy to provide special pricing—just reach out for a custom quote.


Authorized Dealer: As an authorized dealer for all our brands, you’ll receive full manufacturer warranties with every order.


At Green Vista Living, we aim to make your renewable energy and outdoor experience as seamless and enjoyable as possible. With our unmatched customer service, expertise, and dedication to quality, you can shop with confidence, knowing you’re supporting a company that’s as committed to the planet as you are.

Frequently Asked Questions

Yes! We provide free and fast shipping on MOST orders within the continental United States. However, some specific brands and items will require a quote. You can live chat or call us for a quote
Most orders ship out within 1–2 business days and arrive within 3–5 business days depending on your location.
We offer easy returns as long as your item meets the conditions outlined in our Return Policy. Items must be unused, in original packaging, and returned within the specified return window.
Absolutely! Our in-house product experts are here to help. Live chat or call us 513-743-829 for personalized advice before or after your purchase.
Yes. All products include any applicable manufacturer warranties, and we’ll help you handle any warranty claims if needed.
Yes, we only sell 100% authentic, brand-new products, sourced directly from our manufacturers or authorized distributors.

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Feedback From Our Customers

At Green Vista Living, we pride ourselves on delivering top-quality products and exceptional service to solar professionals and homeowners alike. Here's what our customers have to say about their experiences with us.

Kevin Leary
May 18, 2025
★★★★★

Incredible Tech Support from Anees of Green Vista Living. Exceptional service and went above and beyond on every question.

Bryan Cunningham
Off grid Kit • Dec 21, 2025
★★★★★

Shipment was slow due to high demand, but the team kept me informed and ensured everything arrived properly.

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