Spatex Commercial 2-Stage Side Channel Air Blower 1.3kW Kit - SXHB-320A-1D1 - Single Phase
Spatex Commercial 2-Stage Side Channel Air Blower 1.3kW Kit - SXHB-320A-1D1 - Single Phase is backordered and will ship as soon as it is back in stock.
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Spatex Commercial 2-Stage Side Channel Air Blower 1.3kW Kit - SXHB-...
Spatex Commercial 2-Stage Side Channel Air Blower 1.3kW Kit - SXHB-320A-1D1 - Single Phase is backordered and will ship as soon as it is back in stock.
Spatex Commercial 2-Stage Side Channel Air Blower 1.3kW Kit - SXHB-320A-1D1 - Single Phase. Full Electrical Approvals unlike almost all other brands. Comes with bypass valve, air filter, and fittings. Runs quieter, and does not have brushes unlike common domestic blowers, for ultimate longevity.
Known as a:
- Side Channel Blower
- Ring Blower
- Regenerative Blower
Australian electrical approvals
- Australian electrical test report for commercial & industrial applications
- Australian electrical certification for residential and domestic spa & swimming pool applications
- Approved for use in private homes, residential apartments, hotels, gyms, and public spas/pools
Supplied as a kit
Supplied as a kit with:
- Pre-set pressure relief valve (must not be adjusted)
- Inlet air filter
- Galvanised plumbing fittings
Note: Images depicting included components may be of alternate blower models.
Specifications
- 1.3kW, 220–240V, 50Hz, 7.3A, single phase
- Maximum air flow: 120 m³/hr
- 103 m³/hr at 0.6m head / 60mBar (approx. 600mm water depth to the lowest point of blower pipework prior to the loop above water level)
- Max operating pressure: 280 mbar / 240 mbar vacuum
- See performance curves for ratings at different flow/pressure points
Warranty
- 3 year residential warranty
- 2 year commercial warranty
Installation notes (important)
- Install in a ventilated, weather/splash/moisture-protected location.
- Plumbing must be designed to prevent water/moisture ingress into the blower.
- Pipework must be configured so any water in the line can evacuate during normal operation.
Best-practice plumbing options:
- Preferred: Plumb a loop 700mm above water level within 1–2m of the spa/pool. After the loop, the pipe can run at any angle to the blower.
-
If that’s not possible: Plumb above water level as close as possible to the spa/pool and fit a spring-loaded 1/4 lb check valve.
- The pipe from the check valve must run level or uphill towards the blower.
- Avoid downward dips or downhill runs (water can collect, performance drops, and the relief valve may activate to protect the blower).
Pressure relief valve notice
The pressure relief valve is factory pre-set to protect the blower and must NOT be adjusted. Adjustment may result in blower failure and will not be covered by warranty.
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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