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    • Calpeda 4SDP 1/38-W Stainless Steel 4
    • Calpeda 4SDP 1/38-W Stainless Steel 4

    Calpeda 4SDP 1/38-W Stainless Steel 4" Submersible Bore Pump for Household Water Supply with Floating Impellers

    SKU: 4SDP 1/38-W
    Regular Price $1,959.76 AUD
    Including GST Shipping calculated at checkout.
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    Ultra-deep borehole installations requiring significant lift heights for high-pressure civil applications and domestic utilities are the primary application for this pump. It handles clean water with sand content up to 150 g/m³ and is rated for continuous duty operation.

    A 1.1 kW three-phase motor on a 415V supply drives 38 hydraulic stages, achieving a maximum head of 234 meters at a consistent flow rate of 25 L/Min. The motor interface conforms to NEMA standards, allowing for standardised mechanical mounting and simplified field serviceability.

    High-grade LEXAN radial floating impellers permit axial movement essential for passing sand without causing mechanical lock or excessive friction. This protects polycarbonate diffusers from abrasive wear, maintaining the pump's performance characteristics over an extended service life.

    AISI 304 stainless steel forms the external jacket, with a chrome-nickel steel delivery casing incorporating a built-in non-return valve. This valve prevents backflow and water hammer, shielding the motor and 38 stages from hydraulic shock. Rated for water up to 35°C, the assembly includes a chrome-nickel steel suction lantern and a Class F insulated motor frame.

    FEATURES

    • LEXAN radial floating impellers are designed to handle sand particles while reducing internal wear and seizure
    • Reinforced polycarbonate diffusers reduce turbulence and improve overall hydraulic efficiency
    • Thirty-eight-stage hydraulic configuration delivers 234 meters of head for ultra-high-lift water supply projects
    • AISI 304 stainless steel external jacket provides resistance to borehole oxidation and chemical groundwater attack
    • Built-in non-return valve protects the internal hydraulics from back-pressure and column weight stress
    • NEMA-standard coupling simplifies installation and ensures compatibility with various submersible borehole motors
    • Chrome-nickel steel suction lantern prevents oversized debris from entering and damaging the internal stages
    • Class F insulation and IP68 protection support continuous duty in deep, fully submerged boreholes
    SPECIFICATIONS
    Specification Name Specification Value
    Pump Type Submersible Bore Pumps
    Max Flow 25 L/min
    Max Head 234 m
    Pump Power 1.1 kW / 415v
    Rated Current 3.3 Amps
    Suitable For Deep Well Supply
    Pump Body 304 Stainless Steel
    Liquid Temperature Maximum 35°C
    Inlet Size 100 mm
    Outlet Size 32 mm
    Warranty 1 Year
    Documents
    Specification Sheet Download

    FAQs

    Find quick answers to common questions

    General Product FAQs

    1. How do I choose the right pump for my setup?

    Selecting the correct pump depends on your required flow (L/min), total head (vertical lift + friction loss), and power source. If you're unsure, contact our team and we’ll size the right system for you.

    2. Do you offer support with system design or setup?

    Yes — we provide expert advice to help you choose, install, and optimise your pump system. Whether it's a simple setup or a custom solution, we’re here to help.

    3. Do you offer complete pump solutions or just products?

    We don’t just sell pumps — we provide complete solutions. From accessories and control systems to full packaged setups, we can supply everything required to get your system running efficiently.

    Shipping & Availability

    1. Do you offer Australia-wide shipping?

    Yes — we ship across Australia. Bulk or oversized orders may incur additional freight charges otherwise we offer free shipping over $100*

    2. How long does delivery take?

    Orders are typically shipped within 1–2 business days, with delivery taking approximately 2–7 days depending on your location.

    3. What courier or freight companies do you use?

    We work with a range of trusted carriers including Australia Post, StarTrack, TNT, and other national freight providers depending on the size and location of your order. This allows us to ensure fast, reliable delivery across Australia, including regional and remote areas.

    Warranty & Support

    1. Do your pumps come with a warranty?

    Yes — all products are backed by manufacturer warranties. Warranty periods vary depending on the brand and product type.

    2. What support do you offer after purchase?

    We provide ongoing support including:

    • Installation advice
    • Troubleshooting
    • Spare parts supply
    • System upgrades
    3. What is the warranty process if something goes wrong?

    If you experience an issue, simply contact our team with your order details and a description of the problem. We’ll guide you through troubleshooting and, if required, arrange repair, replacement, or manufacturer assessment in line with warranty terms.

    Why choose Foundation Pumps?

    1. Why choose Foundation Pumps over other suppliers?

    We focus on supplying proven, high-quality pump solutions backed by real industry knowledge. Unlike general resellers, we understand how these systems perform in the field and provide honest, practical advice to ensure you get the right solution the first time.

    2. Do you offer expert advice before and after purchase?

    Yes — we support you at every stage, from selecting the right pump through to installation and ongoing use. Our team is available to assist with sizing, troubleshooting, and system optimisation whenever you need it.

    3. Do you stock trusted brands and quality products?

    We carefully select and supply pumps from reputable manufacturers known for reliability and performance. Our range includes both industry-leading brands and high-value alternatives that meet Australian standards and conditions.

    Can’t find your answer?

    Feel free to reach out to us!

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