JABSCO 50840 Series User Manual

50840 Series Low Pressure Centrifugal Pump
1
“CYCLONE PUMP”
Stainless Steel DC Motor / Pump Unit
A range of Stainless Steel General
Purpose Centrifugal pumps designed
specifically for the marine and industrial
markets. Typical applications would be for
circulation applications such as hot water
systems, livewell or bait tank installations
.
•
Heavy duty robust design
•
Stainless steel construction
•
Long life DC motor
• Silent running
•
Anti-clog impeller design
• Long life mechanical seal
•
Single tool servicing
50840-Series Cyclone Performance
Typical performance based on pum ps running at 12.8V and 25.6V DC
Flow - lpm (gpm )
Total Head - bar (psi)
0.2 ( 2.9)
0.3 ( 4.4)
0.4 ( 5.8)
0.5 ( 7.3)
0.1 (1.5)
120 (31.7)80 (21.1)40 (10.6)
0.6 ( 8.7)
0
0
0.7 ( 10.2)
Features & Benefits
Specification
Part Numbers
Performance Curve
WARNING: Do not pump petrol or
fluids with a flash point below 37°C
(98°F). Explosion and death may
occur.
Installation Instructions
• The Cyclone can be mounted on any flat
surface.
• The pump must be installed below the lowest
fluid level to maintain flooded suction.
• Fit pump in a dry, well ventilated position.
•
Use rubber grommets provided to minimise
vibration.
• If mounted vertically, ensure the motor is
above the pump head.
• Use 3/4" pipe fittings with PTFE pipe joint tape
or compound.
• Plastic fittings should not be used if pump is
installed below the waterline.
•
Continuously rated
• Motor life 3500 hours
•
2m suction lift when wet
• Fluid Temperature +4°c min +95°C max
Relevant Standards
• ISO 8846 MARINE and USCG Regulations
for Ignition Protection
•
ISO 8849 MARINE Bilge Pump Standard
WARNING: All marine pumps
discharging overboard must be installed
with the overboard discharge well above
both static and heeled waterlines.
Flooding and death may occur.
Model Voltage Port Fitting
50840-0012 12Vdc NPTF
50840-2012 12Vdc BSP
50840-0024 24Vdc NPTF
50840-2024 24Vdc BSP

JABSCO 50840 Series Specifications

General

Brand	JABSCO
Model	50840 Series
Category	Water Pump
Language	English

Summary

Cyclone Pump Overview

Product Description

Stainless Steel DC Motor / Pump Unit designed for marine and industrial circulation applications.

Performance Curve

Shows typical performance of 50840-Series Cyclone pumps at specified DC voltages.

Installation Instructions

Guidance on mounting location, orientation, and fitting requirements for safe operation.

Pump Operation and Maintenance

Operation Guidelines

Information on running the pump dry for short periods and against a closed discharge.

Maintenance Checks

Regular inspection of electrical connections and seal area for leaks.

Wiring Instructions

Guidelines for correct electrical wiring, polarity, fuse rating, and voltage compatibility.

Assembly and Disassembly

Disassembly Steps

Procedure for safely disconnecting power and taking apart the pump.

Reassembly Steps

Instructions for correctly reassembling the pump components, including lubrication.

Product Specifications and Details

Dimensional Drawing

Visual representation of the pump's physical dimensions and weight.

Exploded View

Diagram showing all pump components with part identification.

Manufacturer Contact Information

Details for Jabsco and Xylem subsidiaries in USA, UK, Japan, Germany, and Italy.