Stanley SM21 Submersible Pump 2-1/2” Outlet

Ordering Code: SM21

The Stanley SM21 submersible pump is the ideal pump for confined spaces and small openings. It can pump up to 1125 lpm with a 15m (50ft) head.

The Stanley SM21 submersible pump is a small diameter (caisson style) self priming hydraulic dewatering pump with the ability to pump 1135 lpm (300 gpm). At only 160mm (6¼”) wide the SM21 can fit in small openings plus the cast iron impeller is within 19mm (¾”) of the base allowing it to remove more liquids than other pumps. The SM21 also has a lifting eye, a 2.5″ discharge outlet and is fitted with hose whips plus flat face quick connect couplings. These features give the SM21 the ability to clear water from confined spaces or trenches plus a wide range of other applications where you need to move large volumes of water quickly and reliably.

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SKU SM21 Category



  • 15-34 lpm operating flow range
  • Stainless steel / cast iron impeller
  • Submersible (no priming required)
  • Able to run dry without damage
  • Lifting eyes


Weight : 11.5 kg
Brand : Stanley
Power Type : Hydraulic
Capacity : 1125 lpm
Fitting : 2½” Male Camlock
Hydraulic Flow : 15-34 lpm
Pressure : 70-140
Coupling : Yes
Port Size : -6 SAE O Ring

Contact Information



iSubC Diving Equipment Ltd
Units 10 Holly Close
Whitehills Business Park
Westby With Plumptons

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