The DAB Aquajet 112M takes a mechanical seal for a 13 mm shaft with carbon / ceramic faces. DAB’s seal number for this pump is 61M/16, and this aftermarket CapacitorsNZ seal replaces DAB 61M/16. The same seal is listed for several other DAB jet pumps, including the Aquajet 102M and Aquajet 132M, so confirm the 13 mm shaft size and the 61M/16 reference against your old seal.
DAB Aquajet 112M mechanical seal specification
Shaft size: 13 mm. Faces: carbon against ceramic. Replaces: DAB 61M/16. It suits the 1.0 kW single-phase Aquajet 112M jet pressure pump used for well supply. Look for Aquajet 112M, or just Aquajet 112, on the motor label.
A mechanical seal has two halves. A spring-loaded rotating face turns with the shaft, and a stationary seat is fitted into the pump body; on this seal one face is carbon and the other ceramic. The two polished faces run against each other on a thin film of water, which is why a seal should never be run dry.
Signs the Aquajet 112M seal has failed
- Water dripping from the gap between the pump casing and the motor.
- The pump cutting in and out when no taps are open, because it can’t hold pressure.
- Rust staining, a wet base or a crusty mineral trail under the motor end.
- A squealing noise from the seal area, especially after the pump has run without water.
Other pumps that use the Aquajet 112M seal
The seal that replaces DAB 61M/16 is also listed for the DAB Aquajet 102M, DAB Aquajet 132M, DAB Jet 82M, DAB Jet 102M, DAB Jet 151, DAB Jet 251, DAB Jetinox 90M, DAB Jetinox 110M and DAB K20/41.
It is also listed for pumps we don’t have a model page for yet, including the DAB Aquajet 82M, Jet 61, Jet 81 and Jet 100, the Grundfos JPF2 and JPF3, the Onga SF55-65, the Pentax CM50, CM75 and CM100, and the Saer CMP76 and CMP79. The same seal is sold on its own as our 13 mm jet pump seal. For other DAB models, see our DAB service kits.
Fitting a new seal to the Aquajet 112M
Turn off and isolate the power, drain the pump, then separate the motor from the casing to reach the impeller. With the old seal out, measure the shaft where it sat and compare the old seal against the new one. Clean the seat bore, press the new stationary seat in square using only water or a little dish soap as lubricant, and keep fingers and grease off both faces. Prime the pump fully before starting it so the new faces never run dry. Check the old part before fitting: match the size of your old seal.
Before you order
Check the old part before fitting: match the size of your old seal.
Capacitor details for this pump: DAB Aquajet 112M capacitor guide.