Install safety and control devices (recommended)
Avoid pollution
1. Install the filter in the suction pipe.
2. Install a differential pressure display with contact pressure gauge to monitor the dirt Situation.
Avoid backflow ALLWEILER
Through a check valve between the pressure pipe joint and the gate valve, ensure that the pump will not There will be media backflow. Able to separate and lock pipes For maintenance and repair work. Install locking devices in suction and pressure pipes. Able to measure operation status
1. Install pressure gauges in suction and pressure pipes for measuring pressure.
2. Install load monitor (overload and underload) on the motor.
3. Install a temperature measuring device on the pump.
Check the tension-free pipe connection Laying and cooling pipes
instructions
Tight pump casing will cause property damage Ensure that all pipes are connected to the pump without tension.
1. Remove the connecting flange of the pipe from the pump.
2. Check whether the pipeline can move freely in all directions within the expected extension range Active:
– Rated width<150 mm: manual
– Rated width>150 mm: use small handle
3. Make sure that the flanges are arranged in parallel planes.
4. The connecting flange of the pipe shall be fixed on the pump again.
5.6.6 Check the support tension
1. Loosen the bolt connection between the bracket and the base
2. If the support moves, balance the tension:
– Lateral deviation: through rectangular hole
– Height deviation: through spacer metal
3. Screw the bracket onto the base again. Make sure that the bearing bracket is not tensioned at this time.
Connecting pipes , ALL Authorized agent of WEILER
5.6.1 Avoid pipeline pollution
instructions
Contamination of the pump will cause property damage! Make sure that no sundries enter the pump.
1. Clean all piping components and assemblies before assembly.
2. Make sure that the flange gasket does not protrude inward.
3. Remove the protective film and/or paint on the holeless flange, plug and flange.
5.6.2 Installation of auxiliary pipes
Note the manufacturer's instructions for the auxiliary operating system that may be equipped.
1. Install the auxiliary pipeline onto the auxiliary interface without tension and seal (→ Install Drawings) , ALLWEILER screw pump
2. Avoid forming bubbles: the pipeline is always laid upward towards the pump.
5.6.3 Installation of suction pipe
1. Remove the transport cover and cover from the pump.
2. Avoid forming bubbles: the pipeline is always laid upward towards the pump.
3. Make sure that the washer does not protrude inward.
4. During pumping operation: install the bottom valve in the inlet pipeline to prevent the pump from idling and inlet The pipeline is at a standstill.
5.6.4 Installation of pressure pipes
1. Remove the transport cover and cover from the pump.
2. Avoid forming bubbles:
– The pressure pipeline is always laid in ascending or descending shape,
– Otherwise, arrange an exhaust valve at the highest point of the pressure pipeline.
3. Install the pressure pipe.
4. Make sure that the washer does not protrude inward.
Check the tension-free pipe connection Laying and cooling pipes
instructions
Tight pump casing will cause property damage Ensure that all pipes are connected to the pump without tension.
1. Remove the connecting flange of the pipe from the pump.
2. Check whether the pipeline can move freely in all directions within the expected extension range
Active:
– Rated width<150 mm: manual
– Rated width>150 mm: use small handle
3. Make sure that the flanges are arranged in parallel planes.
4. The connecting flange of the pipe shall be fixed on the pump again.
5.6.6 Check the support tension
1. Loosen the bolt connection between the bracket and the base
2. If the support moves, balance the tension:
– Lateral deviation: through rectangular hole
– Height deviation: through spacer metal
3. Screw the bracket onto the base again. Make sure that the bearing bracket is not tensioned at this time.
5.7 Electrical connection
DANGER
Electric shock will cause life danger! Electrical work can only be carried out by electrical professionals.
5.7.1 Connecting the motor
Observe the motor manufacturer's instructions.
1. Connect the motor according to the circuit diagram.
2. Ensure that there is no hazard caused by electric energy.
3. Install the emergency stop switch.
5.7.2 Check the direction of rotation
DANGER
Danger to life due to rotating parts! Prevent the sliding key from throwing out when monitoring the rotation direction.
instructions
Property damage due to dry running and wrong direction of rotation! Separate the motor from the pump.
1. Start the motor and then turn it off.
2. Check whether the rotation direction of the motor is consistent with the rotation direction arrow of the pump.
3. When there is deviation in the direction of rotation: exchange two phases.
4. Reconnect the motor
