Injectors used in chlorination systems are designed to create a powerful operating vacuum, to save water and booster-pump horsepower.
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| 3/4" Fixed Throat |
Up to 200 ppd (90kg/day) |
1" Fixed Throat |
Up to 500 ppd (227kg/day) |
| 2" Adjustable Throat |
Up to 3000 ppd (1360kg/day) |
| 3" Adjustable Throat |
Up to 8000 ppd (3629kg/day) |
| 4" Adjustable Throat |
Up to 10,000 ppd (4535kg/day) |
Chlorine Injector Drawings
Chlorine Injector Curves
3/4" and 1" Injectors

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3/4 and 1 inch chlorine injectors are fixed throat differential type chlorine injectors constructed from PVC.
They have a built-in double spring diaphragm and poppet check valve to protect against backflooding.
The chlorine injector design is such that, should operating vacuum stop, a spring closes the diaphragm valve. |
- Flexible Mounting Orientation
- Integral mounting bracket
- Horizontal or vertical mounting
- Anti-Siphon Arrangement
- For swimming pools and negative backpressure conditions
- Ease of Service
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2" Injectors

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The differential type 2 inch chlorine injector can be PVC with an adjustable throat or a bronze body injector is available for higher pressures with a bellofram (water pressure) operated adjustable throat for start-stop operation. |
- Plastic body arrangement
- Manual shut off
- Operating pressure 8.6 Bar @ 21ºC
- Bronze body arrangement
- With bellofram for positive shut-off
- Operating pressure >8.6 Bar @ 20ºC
- Manual or automatic
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3" and 4" Injectors

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The 3 and 4 inch differential chlorine injectors are plastic and rubber-lined cast iron with adjustable throats.
Adjustable throat injectors permit operation to be fine tuned based on site hydraulic conditions. As these conditions change, for instance due to booster pump impeller wear, the injector can be adjusted to maintain proper performance. |
- Adjustable Throat
- Maximum injector water efficiency operation
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