Fixed pump set
The use of concrete filler in the bottom plate can improve the shock absorption performance.
1. Pour the mortar filler on the anchor bolt hole.
2. After the concrete filler has set, use the specified tightening torque to tighten it at three points
Fixed base plate.
3. Before tightening the remaining bolts, use a baffle plate next to each bolt to remove
Level the flat position.
4. Use a ruler to check the tension of the pump set
Figure 11 Check the tension
– Measure at the periphery of the coupling in two layers, moving 90 ° each time.
– Check the optical gap on the outer diameter with a straight edge (1): place the straight edge on half of the two couplings.
If the error is large, loosen the fixing device on the surface and remove the excessive tension by repacking.
– If specified, cast the base from the inside. At the same time, ensure that no cavity is created by knocking.
The coupling with spacer (expansion coupling) can also be checked with a gauge.
Installation without foundation
Only when it is specified that the pump can be installed without foundation, it is allowed to
Use this operation method (→ Order Data Sheet).
Auxiliary tools, tools and materials:
– Screw wrench
– Level
Figure 12 Installation without foundation
1. Lift the pump set (→ 4.1.2 Lifting, 14 pages)
2. Install 4 horizontal feet (1) as shown in the figure.
– Don't forget the washer (3) under the base.
3. Place the pump unit on the base.
4. Use leveling foot (1) to adjust the height of the surface, as shown in the figure above:
– Use the screw wrench to grasp the hexagonal side (4) of the horizontal foot (5).
– Loosen the hexagon screw (2).
– Adjust the height by turning the hexagon nut (4).
– Tighten the hexagon nut (2). (→ 9.2.4 Tightening torque, number of pages is 37)
– Use the machine level to check the allowable height deviation (1 mm/m) from the longitudinal and transverse directions.
– Repeat the operation until the base is correctly aligned.
Installing the motor
It is only necessary when the pump set is completely installed in the installation position.
instructions
Vibration and strike will cause property damage!
It is forbidden to tilt when pulling half of the coupling apart.
Do not shock or strike the pump parts.
1. Apply molybdenum disulfide on the shaft ends of pump and motor (such as Molykote lubricant)
Apply a very thin layer.
2. Install the sliding key.
3. If there is no screw tightening device: take down the rubber buffer block and heat the half coupling
The temperature rises to about 100 ° C.
4. Pull out the half coupling at the pump unit side and motor side until the shaft end and coupling
The hub is flush. At the same time, observe the specified spacing between coupling halves (→
Coupling installation instructions).
5. Tighten the threaded pins on the two coupling halves.
6. Use a suitable thin gasket to make the height between the motor shaft end and the pump shaft end on the motor
Balance.
7. Screw in motor bolts, but do not tighten them yet (→ 5.9 Calibrate motor,
21 pages)
Design pipeline
5.5.1 Laying support and flange interface
instructions
Excessive pipeline force and torque acting on the pump will cause property loss!
The permissible values must not be exceeded (→ 9.2.8 according to ISO 5199
Specified joint load, 39 pages)
1. Calculate pipeline force and pay attention to all operating conditions:
– Cold/hot
– Empty/full
– No pressure/under pressure
– Flange position change
2. Ensure that the pipe support can slide for a long time without failure.
5.5.2 Determination of pipe inner diameter
Keep the fluid resistance in the pipeline as low as possible.
1. Make sure that the inner diameter of the suction pipe is as much as possible ≥ the inner diameter of the suction pipe joint.
– Recommended flow rate<1 m/s
2. Determine that the inner diameter of the pressure pipe is as much as possible ≥ the inner diameter of the pressure pipe joint.
– Recommended flow rate<3 m/s
Figure 13 Length of straight pipe before and after the pump (recommended)
A > 5x DNs
B DNs
C DNd
D > 5x DNd
Observe the recommended minimum values when installing pipes.
Suction side: shorter length is allowed, but hydraulic power data will be limited.
Pressure side: shorter length is allowed, but it will aggravate the noise.
Design pipeline
5.5.1 Laying support and flange interface
instructions
Excessive pipeline force and torque acting on the pump will cause property loss!
The permissible values must not be exceeded (→ 9.2.8 according to ISO 5199
Specified joint load, 39 pages)
1. Calculate pipeline force and pay attention to all operating conditions:
– Cold/hot
– Empty/full
– No pressure/under pressure
– Flange position change
2. Ensure that the pipe support can slide for a long time without failure.
5.5.2 Determination of pipe inner diameter
Keep the fluid resistance in the pipeline as low as possible.
1. Make sure that the inner diameter of the suction pipe is as much as possible ≥ the inner diameter of the suction pipe joint.
– Recommended flow rate<1 m/s
2. Determine that the inner diameter of the pressure pipe is as much as possible ≥ the inner diameter of the pressure pipe joint.
– Recommended flow rate<3 m/s
optimization
Cross section change and direction change
1. Avoid pipe inner diameter with curvature radius less than 1.5 times.
2. Avoid sudden cross section changes in the pipeline route.
5.5.5 Diversion leakage
warning
DANGERDanger of injury and poisoning from conveying media!
Collect the leakage safely to realize environmental drainage and treatment.
1. Arrange collection and drainage devices for leakage.
2. Ensure that the leakage does not flow out at will.
Recommended reading: ALL WEILER Alweiler, ALLWEILER authorized agent, ALLWEILER Screw pump
