Water treatment Tsurumi 50PN2.75

Water treatment Tsurumi 50PN2.75

Submersible pump for usage in the submersible ultrafine bubble mixer.
Recommended for water treatment, lake and pond management.
Water temperature 0°C to 40° or 32°F to 104°F

The PN-series is a submersible semi-vortex pump designed for handling wastewater and liquid carrying small solid matters. It is made of resin and 304 stainless steel and excellent in corrosion-resistance. The semi-vortex pump design with moderate solids passage provides efficient performance for versatile applications. Liquid paraffin is used for the lubricating oil, which widens the application of the pump to decorative waterfalls, fishponds, aquaculture, etc.

The benefit of a vortex impeller over a channel impeller is the minimized risk of clogging. The vortex impeller creates a revolving mass of water which forms a whirlpool. A whirlpool is a funnel shaped opening is created downward from the water surface. It can be developed by water flowing out of a small opening in the bottom of a basin, a reservoir or by a pump. Impellers creating this Vortex are called vortex impellers. The benefit of a vortex impeller over a channel impeller is the minimized risk of clogging. A Vortex impeller is also a better choice when the pumped liquid has a high content of sand. The efficiency of a pump with a vortex impeller is typically lower than a pump with a channel impeller.


Installation of the 50PN 2.75 Tsurumi in the submersible ultrafine bubble mixer. Click through the photo carouser above to see the pictures and the various steps involved.

Photo 1.  Overview of the top of the pump as it is supplied by your distributor.

Photo 2. Remove the pump base loosen 4 screws with a star screwdriver or a 13/32" wrench alternatively a 10 mm wrench. Keep in mind that the head of the bolt is imperial.

Photo 3. Mount the supplied pump frame, please check that the large rubber O-ring is kept in place between pump and aluminum frame.

Photo 4. Mounting the pump turn it a quarter so the wire is pointing towards the back wall of the pump frame. Mounting it differently is not possible as the hook will be in the way.

Photo 5. Overview of the final result Tsurumi 50PN 2.75 with mounting plate.

#Liquid specifications50 Hz60 HzHead
1Maximum pump capacity liter380379
2Maximum pump capacity Gallons100100
3Liter per minute @ head300 3036   Meter
4Gallon per minute @ head798020   Feet
#Electrical specifications---
5Electric phase ⌀ voltage1 Ø 110 Volt or 1 Ø 220 Volt, 3 Ø 200-240 Volt, 3 Ø 380 - 600 Volt
6Power consumption750 watts
7Pump house materialGlass fiber reinforced resin, stainless steel SUS304
8Power cord length5 or 6 meters Meter
#Connections MetricImperial-
9Water outlet50 mm or 2"
#Dimensions MetricImperial-
10Dim. (w) x (d) x (h) mm335 x 236 x 374 13 x 9 x 15
11Weight10 Kg22 lbs.
12HS code8413.7010


acniti nanobubble mixer submersible unit

Submersible UFB mixer

This pump is suitable for the submersible ultrafine bubble mixer and recommended for agriculture applications



acniti is a manufacturer of nanobubble equipment and industrial oxygen concentrators. acniti specializes in the sales and marketing of nanobubble technology.

Nanobubble technology is the next revolution in water and liquids to change their properties by dissolving gases to enhance biological processes, to innovate cleaning and disinfection in a wide range of applications.



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