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For domestic and commercial closed loop heating or air-conditioning systems, including solar heating circuits, the Davey SC20-25 provides reliable water circulation in residential and light commercial applications. This wet rotor circulator pump is suitable for installations where consistent flow is required in hydronic heating systems, radiator circuits, and solar thermal arrays.
Hydraulic performance is delivered through three manual speed settings: Speed 1 at 950 rpm producing 46 W power consumption, Speed 2 at 1300 rpm with 67 W, and Speed 3 at 1850 rpm drawing 93 W. The pump delivers a maximum head of approximately 5.5 m with a flow rate reaching 61.7 L/Min. Rated current varies from 0.20 A on the lowest setting to 0.40 A at maximum speed on 240 V single-phase supply.
The impeller is manufactured from composite material, while the pump casing is constructed from cast iron. The wet rotor design utilises bearings lubricated by the pumped liquid, with graphite bearings and a ceramic shaft providing reliable operation. Rotating parts in contact with the pumped liquid are made from corrosion resistant materials for maintenance free performance.
Installation is facilitated by an in-line pump casing with threaded ports allowing direct mounting on pipe work. Barrel unions with threaded ports simplify servicing. The integrated automatic motor overload protection and sintered bronze filter protecting the rotor chamber from impurities enhance operational security. Maximum liquid temperature range is -10°C to +95°C, with maximum ambient temperature of +40°C.
FEATURES
- In-line pump casing design with threaded ports for direct pipe work mounting
- Barrel unions with threaded ports for simplified installation and servicing
- Three speed manual selector switch adaptable to suit installation requirements
- Wet rotor bearings lubricated by pumped liquid providing quiet operation
- Stainless steel impeller neck ring for extended service life
- Sintered bronze filter protecting rotor chamber from impurities
- Integrated automatic motor overload protection
FAQs
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.
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