Description
The JS Pumps GS-1200 110v Automatic (code 020-704A) is a site-voltage sewage grinder pump fitted with a MAC 3 float switch, so it can be left to empty a welfare tank or temporary sump on its own. It pumps up to 190 litres per minute and lifts to 19 metres of head through a 1¼” outlet, from a 1.2 kW motor on a 110v transformer supply.
The motor draws 20 A, so check the transformer and socket rating before connecting; a standard 16 A 110v outlet is not enough. If someone will always be on hand to switch it, the GS-1200 110v Manual is the same pump without the float. For permanent mains installations, use the GS-1200 230v Automatic instead.
The pump body, impeller, motor top cover and lower bearing and seal housing are cast iron, and the motor case is stainless steel. Twin mechanical seals (carbon ceramic and silicon carbide) run in a lubricated oil chamber. The side vertical outlet is removable, so the pump can stand free with the hose tail supplied or sit on a guide rail coupling foot for easy lifting out. It comes with 10 metres of power cable.
Features
- MAC 3 float switch for unattended operation
- 110v single phase for site transformers, 20 A
- High-chrome cutter and grinder ring, rated by JS Pumps at up to 28,000 cuts per minute
- Up to 190 l/min and 19 m head from a 1.2 kW motor
- 1¼” (32 mm) side vertical outlet with hose tail
- Twin mechanical seals in an oil chamber
- Free standing or guide rail mounted
- 10 metres of power cable
Applications
- Unattended site welfare and canteen waste tanks
- Temporary sewage pumping during drainage works
- Site sumps that collect toilet and wash water
- Plant hire fleets that run on 110v
Designed for sewage and waste water containing soft solids. Not suitable for sand, gravel, stones or other hard debris, which wear or jam the cutter, or for oils, solvents, chemicals or flammable liquids.
The JS GS grinder range
| Model | Voltage | Operation | Outlet | Max Flow (l/min) | Max Head (m) | Motor (kW) | Current (A) | Code |
|---|---|---|---|---|---|---|---|---|
| GS-1200 230v Manual | 230v | Manual | 1¼” | 190 | 19 | 1.2 | 9.9 | 020-702 |
| GS-1200 230v Automatic | 230v | Automatic | 1¼” | 190 | 19 | 1.2 | 9.9 | 020-702A |
| GS-1200 110v Manual | 110v | Manual | 1¼” | 190 | 19 | 1.2 | 20 | 020-704 |
| GS-1200 110v Automatic | 110v | Automatic | 1¼” | 190 | 19 | 1.2 | 20 | 020-704A |
| GS-1500 230v Manual | 230v | Manual | 1¼” | 190 | 22 | 1.5 | 12 | 020-707 |
| GS-1500 230v Automatic | 230v | Automatic | 1¼” | 190 | 22 | 1.5 | 12 | 020-707A |
Flow and head are JS Pumps’ published maximums. See the JS GS grinder sewage pump range page for help choosing between models, or the JS GST range for three-phase 400v versions.
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