Description
The JS Pumps GS-1200 230v Manual (code 020-702) is a single-phase submersible sewage grinder pump for mains-powered installations. A cutter working against a high-chrome grinder ring shreds soft solids before they reach the impeller, so the pump can deliver up to 190 litres per minute and lift to 19 metres of head through a 1¼” outlet, driven by a 1.2 kW motor drawing 9.9 A at 230v.
As the manual version it runs whenever power is applied, which suits a sump controlled by your own float switch or a control panel. If you want the level control built in, the GS-1200 230v Automatic is the same pump with a MAC 3 float switch. For longer or higher discharge runs, step up to the GS-1500 230v Manual, which lifts to 22 metres.
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
- 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
- 1.2 kW motor, 230v single phase, 9.9 A
- 1¼” (32 mm) side vertical outlet with hose tail
- Twin mechanical seals in an oil chamber
- Free standing or guide rail mounted
- Manual operation for use with external level control
- 10 metres of power cable
Applications
- Basement toilets, showers and utility rooms below the sewer level
- Annexes, garden rooms and outbuildings with a long run to the drain
- Fixed sewage sumps with a control panel
- Small-bore rising mains where large pipe is impractical
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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