JS-250SV 230v Manual Sewage Vortex Pump

Description

The JS Pumps JS-250SV 230v Manual (code 011-250) is the plain mains version of the JS-250SV: a 1½-inch cast iron submersible sewage pump with a vortex impeller and no float, for use with your own controls. It delivers up to 240 litres per minute and lifts to a maximum head of 6.5 metres from a 0.25 kW motor, through a 1½” outlet, on a standard 230v single-phase mains supply, drawing 1.9 A. It passes soft solids up to 36 mm.

This is the manual version, so it runs whenever it is powered. Use it where someone is on hand, or wire it to a separate float switch or control panel for unattended duty. For automatic operation, choose the JS-250SV 230v Automatic MAC-3 with a tethered float or the JS-250SV 230v Automatic AGMA with a vertical switch on the pump. The same pump is also available as the 110v manual version.

If 6.5 metres of head is not enough, the JS-400SV 230v steps up to a 2-inch outlet and a cast iron vortex impeller, with 260 l/min and 7.5 m. For lighter domestic waste, the JS-150SV range is the smaller 1¼-inch pump.

The JS-250SV has a cast iron motor lid, lower motor and seal housing and pump chamber, with a stainless steel shaft and outer motor casing. The vortex impeller is plastic, and twin mechanical seals run in a lubricated chamber. Every version weighs around 15 kg, comes with 10 metres of power cable and has a 1½” BSP female outlet supplied with a 1½” BSP male hose tail. Maximum immersion depth is 7 metres.

Features

• Cast iron pump chamber, motor lid and seal housing
• Plastic vortex impeller, set back from the inlet so soft solids pass through
• Passes soft solids up to 36 mm
• Twin mechanical seals in a lubricated chamber
• Stainless steel shaft and outer motor casing
• 0.25 kW motor, 230v, 1.9 A
• Up to 240 l/min and 6.5 m head
• 1½” BSP female outlet with 1½” BSP male hose tail
• Manual operation (add a float switch or panel for unattended use)
• Fits the SR50 coupling foot and claw for guide rail installation
• 10 metres of power cable; maximum immersion 7 metres
• 415 x 160 x 260 mm (H x W x L), around 15 kg

Applications

• Light-duty sewage and foul water sumps in houses, annexes and garden rooms
• Grey water from showers, sinks and utility rooms below drain level
• Dirty water and drainage sumps
• Clean water transfer

JS rates this pump for light-duty sewage, dirty water and clean water. A vortex pump does not cut or macerate, so it is not suited to small-bore pressure pipework or heavy commercial sewage; for those, look at the JS GS grinder pumps or the larger JS SV single-phase sewage pumps. It is not designed for oils, fuels, solvents or chemicals. Check the curve before you buy: at 4 metres of head the pump gives roughly 100 l/min, and flow falls to nothing at 6.5 metres.

The JS-250SV range

Flow and head are maximums from the JS-250SV performance curve above. See the JS-250SV sewage vortex pump range page to compare every version and for answers to common questions.