1.25HP Davey Celsior Spa Bath Pumps - C270TB - needs Touchpad - 1kW Heater
1.25HP Davey Celsior Spa Bath Pumps - C270TB - needs Touchpad - 1kW Heater - is backordered and will ship as soon as it is back in stock.
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1.25HP Davey Celsior Spa Bath Pumps - C270TB - needs Touchpad - 1kW...
1.25HP Davey Celsior Spa Bath Pumps - C270TB - needs Touchpad - 1kW Heater - is backordered and will ship as soon as it is back in stock.
Davey Celsior Spa Bath Pumps. Generally replaces both the Davey XS 250, and the Davey XS 300 spa bath pumps. This pump has Heat Maintenance Technology. They have both Heat-Maintenance, or Heated pumps available.
C270A - 930Watt with 1.25hp. It has the inbuilt air switch(air button sold separately) and comes with a 10amp plug. Davey XS 300 Replacement
C270AB - 930Watt with 1.25hp and a 1Kw heater element. It has the inbuilt air switch(air button sold separately) and comes with a 10amp plug. Davey XS 250HB & Davey XS 300HB Replacement
C270TB - 930Watt with 1.25hp and a 1Kw heater element. This model is fitted with an electronic touchpad(Touchpad and overlay are sold separately) and comes with a 10amp plug. Davey XS 200HD / XS 250HD Replacement
This pump retro fits the Davey XS250 & XS300 Spa Bath range and have the same barrel unions.
Features & Information:
- Double insulated to water circuit and designed to exceed standards for electrical safety, with up to 5 safety devices that monitor environmental and pump conditions
- Up to 50% quieter than other pumps which provides a more enjoyable spa experience that will not disturb your well deserved relaxation or your neighbours
- With pumps as large as 2HP, and three unique patented features, Celsior pumps deliver greater water flow and pressure, enlivening your spa for a complete massaging effect
- Patented ‘heat maintenance technology’ uses motor heat to assist in maintaining the water temperature
- Environmentally friendly and highly efficient with up to 97% effective energy usage
- High efficiency impeller lowers running costs, delivering savings of up to 15% over older style spa bath pumps
- Unique impeller neck ring increases water pressure and flow
- Quick and easy to install using the Davey ‘Flexibrax’ which makes wall mounting possible with no extra parts and maximises the flexibility and space within your bathroom
- Designed to self-drain free of water after each use, prevents build up of stale unhygienic water for your peace of mind
- ‘No water’ protection prevents heater operation if the pump is run in the absence of water
- All Celsior models feature automatic shutdown protection if the pump is run without water or the suction is blocked
- Built-in automatic air bleed, enables air to be released from the pump, to assist priming performance in difficult installations
In plumbing, named sizes are not the actual measurements. A pipe called “50mm” or “2"” does not measure 50 mm across. Instead, it follows nominal sizing, an internationally-standardised naming system.
Use the Outside Diameter (OD) to check your pipe against fittings. Below is a quick reference for common spa & pool pipe sizes:
| Imperial Name | Metric Name | Pipe Diameter (OD) |
|---|---|---|
| 1/2" | 15mm | ~21.2–21.5 mm |
| 3/4" | 20mm | ~26.6–26.9 mm |
| 1" | 25 mm | ~33.4–33.7 mm |
| 1.5" | 40 mm | ~48.1–48.4 mm |
| 2" | 50 mm | ~60.2–60.8 mm |
| 2.5" | 65 mm | ~75.2–75.5 mm |
These are nominal sizes and are designed to fit matching fittings — not to measure exactly what their name suggests. These are based on PVC Pressure Pipe AS/NZ 1477 Dimensions1.
- º Internal diameters vary slightly by manufacturer and class.
- 1 Not all pool/spa fittings match these dimensions exactly. Some do not follow Australian or international standards. Chinese spas may use proprietary fittings.
Understanding Plumbing Sizes & Nominal Measurements
Plumbing sizes can be confusing. PVC and many other pipe systems use nominal sizes—the size is a name, not the exact measured dimension. This convention is used across most pool and spa systems so that pipes and fittings remain compatible.
Why pipe sizes don’t match the measurements
The Nominal Pipe Size (NPS) system standardises pipe dimensions so that pipes, fittings, valves, and accessories interoperate. Plumbers work with these nominal names every day, but DIYers can be tripped up if they try to match by a tape-measure alone.
How to Measure Pipe Correctly
-
Pipe size is identified by:
- The pipe’s Outside Diameter (OD).
- The fitting’s Inside Diameter (ID) (socket opening).
- Pipe Class / Schedule (e.g., Class 9, 12, 18 or Sch 40) relates to wall thickness and therefore the Internal Diameter (ID) and pressure rating.
- The outside diameter of a fitting is not useful (wall thickness varies by manufacturer).
Hose & Tube Dimensions
Common flexible hose sizes used in pool/spa systems (approximate IDs).
| Imperial Name | Metric Name | Inside Diameter (ID) |
|---|---|---|
| 3/8" | 9–10 mm | ~9 mm |
| 3/4" | 19 mm | ~19 mm |
BSP – British Standard Pipe Thread Sizes
BSP thread names are also nominal. The thread OD will not equal the nominal name.
| BSP Thread Size Naming | Outside Diameter (mm / inch) | TPI |
|---|---|---|
| 1/16" BSP | 7.7 mm / 0.304" | 28 |
| 1/8" BSP | 9.7 mm / 0.383" | 28 |
| 1/4" BSP | 13.16 mm / 0.518" | 19 |
| 3/8" BSP | 16.66 mm / 0.656" | 19 |
| 1/2" BSP / 15 mm | 20.99 mm / 0.825" | 14 |
| 5/8" BSP | 22.99 mm / 0.902" | 14 |
| 3/4" BSP / 20 mm | 26.44 mm / 1.041" | 14 |
| 7/8" BSP | 30.20 mm / 1.189" | 14 |
| 1" BSP / 25 mm | 33.25 mm / 1.309" | 11 |
| 1-1/4" BSP | 41.91 mm / 1.650" | 11 |
| 1-1/2" BSP / 40 mm | 47.80 mm / 1.882" | 11 |
| 2" BSP / 50 mm | 59.61 mm / 2.347" | 11 |
| 2-1/4" BSP | 65.71 mm / 2.587" | 11 |
| 2-1/2" BSP | 75.18 mm / 2.960" | 11 |
| 3" BSP | 87.88 mm / 3.460" | 11 |
| 4" BSP | 113.03 mm / 4.450" | 11 |
| 5" BSP | 138.43 mm / 5.450" | 11 |
| 6" BSP | 163.83 mm / 6.450" | 11 |
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D-C270TB