Jets 25MBA Manual Download Page 5

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Jets™ 25MBA Vacuumarator™ pump

Tel. +47 70 03 91 00

www.jetsgroup.com

Product No. 200025004

Doc. Rev.: 22 (2021-06-08)

Function and Principle

Description

Flap Valve: Facilitates flow into the pump, seals vacuum in the pipes and prevents backflow.

Macerator: The macerator grinds any solids to a fine pulp.

Helical Screw: The helical screw uses liquid to create a seal facilitating vacuum in the pump housing.

Shaft: The shaft is the connecting factor between the macerator, helical screw and motor. It supports and rotates the helical screw and macerator.

Motor: Supplies power to support pump function.

Fan: The fan provides cooling for the motor.

Inlet: Flow inlet from the source into the pump.

Outlet: Flow outlet from the pump to the pipe connection/discharge.

Explanation of the Vacuumarator™ Pump Function

℮

Inlet

ℯ

Flap Valve

ℰ

Macerator

ℱ

Helical Screw

Ⅎ

Motor

ℳ

Outlet

ℴ

Fan

Normal Position - Pump Inactive

● Motor

Ⅎ

- INACTIVE

Fan

ℴ

- INACTIVE

● Helical Screw

ℱ

- INACTIVE

Macerator

ℰ

- INACTIVE

● Flap Valve

ℯ

- CLOSED

Running Conditions - Activated Sequence

● Motor

Ⅎ

- ACTIVATED

Fan

ℴ

- ACTIVATED

● Helical Screw

ℱ

- ACTIVATED

Macerator

ℰ

- ACTIVATED

● Inlet

℮

- FLOWS

● Flap Valve

ℯ

- OPENS

● Outlet

ℳ

- FLOWS

● Motor

Ⅎ

- DEACTIVATED

Fan

ℴ

- DEACTIVATED

● Helical Screw

ℱ

- DEACTIVATED

Macerator

ℰ

- DEACTIVATED

● Flap Valve

ℯ

- CLOSES

● Inlet

℮

- FLOW STOPS

Outlet

ℳ

- FLOW STOPS

Summary of Contents for 25MBA

Page 1: ...tion Inlet DN50 Connection Outlet DN32 Protection Class IP 55 Insulation Class 155 F to 130 B Duty S1 100 Ambient Temperature Range 0 C 55 C Humidity Class F 95 Approvals Motor CSA Approved Net Weight 66 50 kg Operating Data Frequency 60 Hz Voltage Δ198 218 V Nominal Current 12 9 A Speed CCW 3435 rpm Power Output 3 45 kW Power Factor 0 88 cos ɸ Efficiency 84 5 Heat Dissipation Approx 0 6 kW Discla...

Page 2: ...Jets 25MBA Vacuumarator pump Tel 47 70 03 91 00 www jetsgroup com Product No 200025004 Doc Rev 22 2021 06 08 2 ...

Page 3: ...ft Seal 023280030 21 Shaft Seal ø35mm 038218901 22 Sealing Ring 037260700 23 Screw M6x40 036503400 24 Split Sleeve ø5x20mm 020207800 25 Motor Flange 031150252 26 Shaft with Rotor and Ball Bearing 023280102 27 Stator 031000310 Stator 60 Hz Δ198 218 V 28 Spacer Sleeve 036291510 29 End Cover 031261031 30 Screw M6x30 036312728 31 Fan 031261111 32 Fan Cover 031261041 33 Flap valve housing 023280062 34 ...

Page 4: ...Jets 25MBA Vacuumarator pump Tel 47 70 03 91 00 www jetsgroup com Product No 200025004 Doc Rev 22 2021 06 08 4 Dimension Drawings Measurements given in mm ...

Page 5: ...lies power to support pump function Fan The fan provides cooling for the motor Inlet Flow inlet from the source into the pump Outlet Flow outlet from the pump to the pipe connection discharge Explanation of the Vacuumarator Pump Function Inlet ℯ Flap Valve ℰ Macerator ℱ Helical Screw Ⅎ Motor ℳ Outlet ℴ Fan Normal Position Pump Inactive Motor Ⅎ INACTIVE Fan ℴ INACTIVE Helical Screw ℱ INACTIVE Macer...

Page 6: ...of gravity Maximum outside dimensions Generally it is recommended that the pump be transported on a pallet or similar using a forklift or with appropriate lifting equipment For safe lifting with a crane it is recommended to use appropriately dimensioned and certified straps slings or belts 6 10 Warning Do not stand under or pass beneath an elevated load Do not stand within the swing radius of the ...

Page 7: ...ontact with the surface 8 Secure the pump to the base plate Electrical Installation Prior to connecting any electrical wiring ensure that all electrical safety warnings are read and understood Take the necessary precautions to prevent accident injury or damage to equipment Electrical connection details are located on the motor name plate 3 1 Warning All wiring should be performed by a licensed or ...

Page 8: ...information for details If no leak is found the pump is deemed acceptable 2 Test the amperage to ensure that results are within the given readings on the motor name plate Service and Maintenance Intended Use To maintain the expected operational lifetime the following must be adhered to 1 Do not pump liquids containing cleaners that create foam 2 Minimize pumping of liquids containing caustic clean...

Page 9: ...ied 1 4 Caution Safety equipment PPE necessary for the prevention of accidents at the installation and operating site must be provided in accordance with local regulations When taking a pump out of service the following must be adhered to 1 Run freshwater through the pump before shutting it down This is done to reduce the risk of transmission of parasitic organisms 2 Disconnect the power to the pu...

Page 10: ...r 32 in place 4 Remove the fan cover 32 5 Remove the fan 31 6 It is strongly recommended to use a service jig not included in delivery to stabilize the pump during maintenance The service jig prevents the pump from damage and falling over Contact your Jets agent for details Position the service jig on the shaft 7 With the service jig in place turn the pump and place motor side down on a flat surfa...

Page 11: ...ife in place 14 Remove the stationary knife from the assembly 15 Remove the four stay bolts 16 Remove the end flange ℹ from the rotor housing ℽ 17 Remove the O ring 18 Remove the rotor housing ℽ 19 Remove the rotor ℼ 20 Remove the O ring 21 Remove the pressure chamber ℾ A rubber mallet may be required 22 Remove the key ℿ 23 Remove the O ring 24 Remove the spacer sleeve ...

Page 12: ...nge 28 Remove the eight nuts 3 1 from the suction chamber 29 Remove the cover from the suction chamber 30 Remove the O ring ℯ from the cover 31 Remove the nut 37 the flange 38 and the O ring 39 32 Remove the flap valve from the suction chamber ℰ 33 Remove the two nuts 36 the plate 35 and the rubber flap 34 from the flap valve 33 34 Remove the four screws 23 holding the motor flange 35 Remove the s...

Page 13: ...y Ensure that Loctite or an equal type of quality locking compound is applied at the points indicated in the assembly procedure 1 Position the ball bearings 26 1 and 26 2 on the shaft 26 Heating is required 2 Insert the sealing ring 22 into the motorflange 25 Insert the shaft 26 3 Place the spacer sleeve 28 and the stator 27 in position on the shaft 4 Fasten the screws securing the flange 23 5 It ...

Page 14: ...nary part A and the rotating part B Always mount the shaft seal with the graphite glossy sides facing toward each other 14 Position the stationary part of the shaft seal 21A on the flange with the glossy side facing upwards 15 Position the flange with the stationary part of the shaft seal inserted on the shaft 16 Slide the rotating part of the shaft seal 21B into position on the shaft Use care to ...

Page 15: ... four screws M5x12 using Loctite 222 or an equal quality locking compound 29 Insert the rotating knife and split sleeve in the assembly It is recommended to use an alignment tool when fastening the rotating knife Contact Jets Vacuum AS or your local approved supplier for alignment tool details 2 11 Warning Beware of sharp edges 30 Apply locking compound to the hex bolt and secure it with 30Nm torq...

Page 16: ...ion of the pump Once per year annually Check the pump for mineral scale build up Carry out descaling of the pump 6000 running hours Replace the bearings on the motor Replace the shaft seal Inspect the pump replace worn parts if necessary Troubleshooting Problem Cause Action The pump does not start Clogged macerator Remove the clogging Power failure Check the power supply Motor circuit breaker trip...

Page 17: ...sappears Water is leaking from the pump Defective shaft seal Check and replace the shaft seal Frequent start and stop of the pump The flap valve does not close properly Clean the flap valve or replace it if it is damaged Leakage in the vacuum pipes or defective vacuum valve in the toilets or interface tanks Detect leakage and repair Tripped motor circuit breaker Overload of the electric motor Dete...

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