JOHNSON PUMP FLOW MASTER 5.0 Water Pressure Pump / 24V

SVB item number: 57188 Manufacturer no.: 10-13329-04
The powerful FLOW MASTER 5.0 is a five-chamber displacement diaphragm pump with a digital controller that automatically adjusts the water flow, ensuring an even water flow at the same time.  Product details
Recommended retail price: €476.37
only  €399.95
-16%
You save: €76.42
3 | in stock
pcs.
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Available variants

FLOW MASTER 5.0 Water Pressure Pump / 12V
JOHNSON PUMP FLOW MASTER 5.0 Water Pressure Pump / 12V
€467.29
only €389.95
To product

Product data

  • SVB item number 57188
  • EAN 8719182058069
  • Manufacturer no. 10-13329-04
  • Description JOHNSON - FLOW MASTER 5.0 water pressure pump
  • Operating voltage 24 V
  • Recommended fuse 8 A
  • Max. flow rate 19 l/min
  • Max. flow rate 300 gph
  • Self-priming Yes
  • Integrated pressure switch Yes
  • Run dry safe Yes
  • Switch-off pressure 3.45 bar
  • Pressure compensation tank recommended No
  • Length 239 mm
  • Width 209 mm
  • Height 113 mm
  • Weight 2 kg

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Product details

The powerful FLOW MASTER 5.0 is a five-chamber displacement diaphragm pump with a digital controller that automatically adjusts the water flow, ensuring an even water flow at the same time. By varying the speed, the pump can be installed without an accumulator tank.
In addition, the innovative, variable flow option of the Aqua Jet FLOW MASTER WPS 5.0 ensures an improved flow rate with virtually silent operation and lower power consumption.

Key features
  • Variable speed
  • Quiet operation
  • Smooth flowing
  • Self-priming
  • Digital control switch automatically turns the pump on and off when the tap is opened and closed
  • Dry running without damage
  • Low power consumption
  • Quick disconnect fittings
Operating principle
If water is used (e.g. at the tap, shower), the pressure is reduced. In the event of a slight pressure drop (below 50 PSI), the built-in digital control switch activates automatically and gently switches the pump on to maintain the required pressure. If more water is required, the control switch registers a drop in pressure and automatically increases the motor speed to increase the flow volume. If the consumption drops, the switch reduces the motor circuit until a pressure of 50 PSI is reached. The pump then switches off automatically when the pressure is reached. Thanks to its robust construction and sophisticated design, the Flow Master 5.0 is built to last for many years of operation.

Technical specifications
  • Voltage: 24 V
  • Flow rate: 19 l/min
  • Motor: WPS 5.0 - 150 W (with built-in overheating protection switch)
  • Connections:
    • 3/8‘ BSP thread, 1/2’ hose (Ø 13 mm)
    • 1/2‘ BSP thread, 3/4’ hose (Ø 18 mm)
  • Max. suction lift: 2.5 m
  • Max. liquid temperature: Max + 50 ° C
  • Cut-off pressure: 3.5 bar / 50 PSI
  • Connection cable: approx. 1 m
  • Material:
    • Housing: Nylon/polypropylene
    • Valves: Santoprene/EPDM
    • Membrane: Santoprene

Features

Discover the features that make this product stand out. From technical details to special functions – we’ve summarized all the key information for you.

Operating voltage
24 V
Self-priming
Integrated pressure switch
Run dry safe
57188_JOHNSON - Druckwasserpumpe FLOW MASTER_S03.jpg
57188-04.jpg
57188-02.jpg

Delivery contents

  • Aqua Jet FLOW MASTER 5.0 WPS
  • PUMProtector inlet strainer
  • 2x fittings: 3/8" BSP thread, 1/2" hose
  • 2x fittings: 1/2" BSP thread, 3/4" hose
  • 4x washers
JOHNSON PUMP FLOW MASTER 5.0 Water Pressure Pump 24V Image 7 of 7

Documents

multi-flag Manual
PDF (669,59 KB)

Systems

Product safety

What other SVB customers have to say

100% real reviews

4 customer reviews

4.5 (out of 4 ratings)
4 Stars
(0)
2 Stars
(0)
1 Stars
(0)
100% recommend SVB
Roger S.
by Roger S. Flag of Switzerland 4/24/2025 Verified purchase Variant: 57187 in use on a Hallberg-Rassy Varv AB - Hallberg Rassy 36
flawless
I replaced the entire freshwater system on our HR36, including hoses, distributor, filter, and pressure water pump. The pump is mounted with a pressure compensation tank, but it's not absolutely necessary; it works without it. It's not too loud, even though it's mounted in the saloon. The entire system has been working perfectly for a month now; we drink the water directly from the tap.
  • Advantages
  • Flow Rate
  • Pressure
  • Noise Level
  • Price/performance ratio
  • Quality
  • Mounting/Installation
Dag H.
by Dag H. Flag of Germany 3/9/2023 Variant: 57187
Significantly quieter
As the lagoon built-in pump
  • Advantages
  • Flow Rate
  • Noise Level
  • Price/performance ratio
  • Quality
  • Mounting/Installation
Benedikt V.
by Benedikt V. Flag of Switzerland 6/29/2020 Verified purchase Variant: 57187
Top Pump
The pump does an excellent job. Noise emission to other pumps very good, but not quiet either. Attention the pump fills the system with 3.4 bar. My old boiler had a safety valve that opens at 3.0 bar, so it worked like an open tap. Boiler now also renewed.
Jörg D.
by Jörg D. Flag of Germany 10/20/2022 Verified purchase Variant: 57188
Insufficient digital control switch at low pressure
In the low pressure range, the pump switches on and off constantly, and since it is not whisper-quiet, this is occasionally annoying. I used to have another model that didn't work audibly, even drop by drop, so I'm not entirely satisfied with this model. I use the pump to fill the flush tanks in the toilets with salt water, and the constant switching on and off bothers me, especially at night.

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Comparison

Availability / Price
only €399 95
Only 3 in stock
only €389 95
Only 2 in stock
Item no.
57188
57187
Customer ratings
(4)
(5)
Description
JOHNSON - FLOW MASTER 5.0 water pressure pump
JOHNSON - FLOW MASTER 5.0 water pressure pump
Width
209 mm
209 mm
Height
113 mm
113 mm
Recommended fuse
8 A
15 A
Weight
2 kg
2 kg
Length
239 mm
239 mm
Operating voltage
24 V
12 V
Switch-off pressure
3.45 bar
3.5 bar
Max. flow rate
19 l/min
19 l/min
Self-priming
Run dry safe
Integrated pressure switch
Pressure compensation tank recommended
Max. flow rate
300 gph
300 gph
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JOHNSON PUMP FLOW MASTER 5.0 Water Pressure Pump / 24V
View Ratings (4) Questions (1)