JABSCO 50840 Series Manuale utente

50840 Series Low Pressure Centrifugal Pump

“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)

0.7 ( 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

50840 Series Low Pressure Centrifugal Pump

Wiring Instructions

• All electrical wiring should be connected and

installed by a competent electrician. A qualified per-

son must ensure that the installation conforms to

the regulations in place.

• Ensure connections are of the correct polarity

red/orange (+ve) black negative (-ve). Note; if

wired in reverse the pump will still run but give poor

performance.

• Always use the correctly rated fuse or circuit break-

er. If a circuit breaker is used it should be of the

“conditionally surge current proof” type. Please see

document 43010-0272 for recommendations or

consult the factory if more advice is needed.

• Check that the supply voltage is compatible with

the voltage specified on the label. A discharged

battery will result in reduced pump performance.

Operation

•Pump may be run dry for short periods of time.

•Pump may be run against a closed discharge.

Maintenance

•Check all electrical connections periodically.

•Check seal area for signs of leaking.

Spare Parts List

Wiring Diagram

Wire Size Table

See Exploded View (Page 4) for explanation of

parts key

WARNING: If the fuse fails repeatedly,

do not fit a heavier fuse or bridge the

terminals. Fire and death may occur.

WARNING: Motor may get hot after

prolonged use, do not touch. Burns may

occur.

(A) Pump Head Kit (NPT)

Pump Head Kit (BSP)

50844-0000

50844-2000

(B) Seal Kit 50835-0000

Motor Kit (24V)

50836-0012

50836-0024

KEY DESCRIPTION KIT KEY QTY PER

KIT

A B C

1 Housing 1 1

2End Cover 1 1

3 O-Ring 1 1 1

4 Screws 5 5 5

5Impeller 1 1

6 Seal 1 1

7 Motor 1 1

8 Locking Nut 1 1 1

9Slinger 1 1

Model

Number Voltage Maximum

Current

Fuse

Size

Wiring Size*

AWG mm2Max. Length

50840-XX12 12V 9.0A 10A 14 2.5 4.5m (15 ft)

10 6.0 9.0m (30 ft)

50840-XX24 24V 4.5A 7A 18 1.0 4.5m (15 ft)

16 1.5 9.0m (30 ft)

* wire length from battery to pump and back to battery, maximum voltage drop 3%

50840 Series Low Pressure Centrifugal Pump

Dis - Assembly Re - Assembly

Disconnect

pump from

power supply.

Remove 3 end

cover bolts, end

cover & o-ring.

2 Carefully

holding impeller,

remove impeller

nut.

3 Remove

impeller.

4 Loosen 2 head

fixing bolts,

rotate pump

head and pull to

remove.

5 Remove seals

from pump

body.

6 Wet the flat seal

part and cup

rubber and push

into head.

7 Fit head to motor

locking into

position and

tighten head

fixing bolts.

8 Lubricate inside

of mechanical

seal and push

onto shaft.

9 Fit and carefully

hold impeller an d

tighten nyloc nut.

Once tight,

carefully hold

impeller and undo

nut 1 revolution to

set impeller

clearance.

10 Fit o-ring to the

body, then place

on the head.

11 Tighten 3 end

cover bolts.

Warranty: All products of the company are sold and all services of the company are offered subject to the company’s warranty and terms and conditions of sale, copies of which will be furnished upon request. The information pro-

vided herein is for guidance only, it does not constitute a guarantee of the performance or specification of any individual product or component.

Dimensional Drawing

Exploded View

50840 Series Low Pressure Centrifugal Pump

Dimensions in mm (inches)

Weight 2.88kg (6.3lbs)

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