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English (GB)

9

3.1.4 Submerged installation on auto coupling

Pumps for permanent installation can be installed on a stationary 
auto coupling and operated completely or partially submerged in 
the pumped liquid. 
Before installing the auto-coupling base unit, ensure the quality 
and strength of the concrete foundation. See the pull-out 
strengths required for anchor bolts in the table at the end of this 
section. To ensure adequate pull-out strength, we recommend 
that you weld the threaded bushings to the steel reinforcement in 
the concrete.

1. Drill mounting holes for the guide rail bracket on the inside of 

the pit and fasten the guide rail bracket provisionally with two 
anchor screws.

2. Place the auto-coupling base unit on the bottom of the pit. 

Use a plumb line to establish the correct positioning. Fasten 
the auto coupling with anchor bolts. If the bottom of the pit is 
uneven, support the auto-coupling base unit so that it is level 
when being fastened. 

3. Connect the outlet pipe in accordance with the generally 

accepted procedures and without exposing the pipe to 
distortion or tension. Do not allow loads from the weight of the 
pipes to be carried by the auto coupling.

4. Fit the guide rails. An intermediate guide rail bracket is 

required if guide rails are more than 6 m long. Place the guide 
rails on the auto coupling, then place the guide rail bracket on 
the guide rails and fasten the guide rail bracket to the pit wall. 
Tighten the anchor bolts.

5. Clean out debris from the pit before lowering the pump into 

the pit.

6. Before lowering the pump into wet pit, check the cables 

visually for cuts or ruptures which may have been caused by 
rough handling during transportation or installation.

7. Slide the guide claw of the pump between the guide rails and 

lower the pump into the pit by means of a certified chain 
secured to the lifting bracket of the pump. When the pump 
reaches the auto-coupling base unit, the pump will 
automatically connect tightly. 

8. Hang up the end of the chain on a suitable hook at the top of 

the pit and in such a way that the chain cannot come into 
contact with the pump. 

9. Adjust the length of the motor cables, but remember to have 

enough cable length to be able to make service on the pump. 
Make sure that the cables are not sharply bent or pinched. Fix 
the cables at the top of the pit in such a way that no extra 
cable slides into the pit.

10. Connect the motor cables and the sensor cable.

Pull-out strengths for anchor bolts

* Pump outlet DN 125 and base plate outlet DN 150.

3.1.5 Submerged installation, portable

1. Fit the ring stand to the pump inlet flange. 
2. Fit a 90 ° elbow to the pump outlet port and connect the outlet 

pipe or hose.
If a hose is used, make sure that the hose does not buckle 
and that the inside diameter matches that of the outlet port.

3. Lower the pump into the liquid by means of a chain secured to 

the lifting bracket of the pump. We recommend that you place 
the pump on a plane, solid foundation. Make sure that the 
pump is hanging from the chain and not the cables.

4. Hang up the end of the chain on a suitable hook at the top of 

the pit and in such a way that the chain cannot come into 
contact with the pump. 

5. Adjust the length of the motor cables by coiling them up on a 

relief fitting to ensure that the cables are not damaged during 
operation. Fasten the relief fitting to a suitable hook. Make 
sure that the cables are not sharply bent or pinched.

6. Connect the motor cables and the control cable, if any.

For auto-coupling installations, 
types S and C, including DN 250 
and upwards, the guide claw is 
mounted on the outlet flange from 
factory.

Avoid pipe tension at flanges and 
bolts.

The free end of the cables must 
not be submerged, as water may 
penetrate through the cables into 
the motor.

Auto-
coupling 
base unit

Bolts

Pull-out strength 

[kN]

DN 100

4 x M16

5

DN 125/150*

8

DN 200

4 x M24

16

DN 250

30

DN 300

40

DN 500

6 x M30

40

DN 600

40

The pull-out strengths are stated 
without safety factor. The 
required safety factor may 
depend on the materials and the 
methods used for anchoring.

Содержание S 50 Series

Страница 1: ...S pumps ranges 50 70 Installation and operating instructions GRUNDFOS INSTRUCTIONS...

Страница 2: ...t 16 5 2 Storing the product 16 6 Product introduction 17 6 1 Product description 17 6 2 Applications 17 6 3 Pumped liquids 17 6 4 Potentially explosive environments 18 6 5 Identification 19 6 6 Insta...

Страница 3: ...icates that an action must be taken A red or grey circle with a diagonal bar possibly with a black graphical symbol indicates that an action must not be taken or must be stopped If these instructions...

Страница 4: ...of lifting chains or place it in horizontal position to secure stability CAUTION Crushing of hands Minor or moderate personal injury Do not put your hands or any tool into the pump inlet or outlet por...

Страница 5: ...may be different from the one in the drawing It does not affect the handling of the product however TM04 7173 1710 Range 50 and Range 58 62 66 and Front Middle Nose Front Middle Outlet flange size Pu...

Страница 6: ...uring lifting or transportation may cause injury to persons or damage the pump Fig 5 Raising the pump to upright position step 1 Fig 6 Raising the pump to upright position step 2 TM06 5922 0316 TM06 5...

Страница 7: ...Correct plinth height for installation on auto coupling is important in order to obtain the best efficiency for the pump Fig 10 Auto coupling base unit installation on a plinth The minimum required p...

Страница 8: ...xxx xxx xxx 150 S2 xxx xxx xxx 150 S3 110 xxx xxx 200 S3 120 300 xxx 400 S3 120 600 xxx 250 Range 70 S1 xxx xxx xxx 150 S2 90 xxx xxx 100 S2 100 xxx xxx 150 S2 110 xxx xxx 150 S2 120 250 500 600 800 1...

Страница 9: ...will automatically connect tightly 8 Hang up the end of the chain on a suitable hook at the top of the pit and in such a way that the chain cannot come into contact with the pump 9 Adjust the length...

Страница 10: ...five times the mass of the supported equipment and must have sufficient rigidity to withstand the axial transverse and torsional loads generated by these machines The foundation must be 15 cm wider t...

Страница 11: ...7 Connect the motor cables and the sensor cable Fig 12 Column pipe installation pump type ST 3 2 Electrical connection Connect the pump to an external mains switch ensuring all pole disconnection wit...

Страница 12: ...ion Pt100 in stator Pt100 in lower bearing Thermal switches Thermistors Moisture switches Two moisture switches in Ex pumps The wiring diagrams in custom built products may be different from the stand...

Страница 13: ...les if there is a risk that electrical noise can disturb other electrical equipment See the data sheet for the frequency converter used 3 3 3 Consequences When operating the pump via a frequency conve...

Страница 14: ...levels are determined by the motor submergence required to ensure cooling to prevent cavitation or to avoid air being sucked into the pump inlet The lowest level cannot always be foreseen but must be...

Страница 15: ...h pumped liquid when the pump is started Other possible actions Use a vacuum pump to suck liquid into the pump housing this requires an isolating valve on the outlet side Install a non return valve in...

Страница 16: ...e product 5 1 Handling the product Before handling the product check the following points Lifting equipment and lifting points See section 3 1 1 Lifting the pump Raising pump to upright position See s...

Страница 17: ...bracket 6 Terminal box 7 Submersible motor 8 Pump 9 Air vent screw 7 6 8 1 2 5 3 5 4 9 Installatio n type Description Accessorie s S Sewage pump without cooling jacket for submerged installation on a...

Страница 18: ...suitable terminal board 7 The WIO sensor must always be fully submerged in the oil when the power is on 8 If a WIO sensor is installed the control unit must protect the WIO sensor against short circui...

Страница 19: ...66 Range 66 70 Range 70 S Super high Pressure version H High M Medium L Low E Extra low F Super low S Submersible installation without cooling jacket Installation type C Submersible installation with...

Страница 20: ...ion G Type of explosive atmosphere 1 2 3 4 5 6 7 8 9 10 11 12 23 13 14 15 16 17 18 19 20 21 22 DK 8850 Bjerringbro Denmark II2G 0344 Ex b c IIB T4 Ex db IIB T4 Gb Type yyww no Warnings Do not open whe...

Страница 21: ...n a base stand TM06 7260 1217 Pos Description CE CE mark 1180 Number of quality assurance notified body EU Ex symbol II Equipment group II non mining 2 Equipment category high protection G Type of exp...

Страница 22: ...vertical dry installation with base stand left and base plate on two concrete plinths right Installation type H Permanent horizontal dry installation Fig 27 Permanent horizontal dry installation The p...

Страница 23: ...r pumps in dry installation the lowest stop level must be at least 20 cm above the opening of the inlet pipe Install the start level switch in such a way that the pump is started at the required start...

Страница 24: ...one optional Pt100 sensor in the bearing or in the stator winding one analog and optional WIO sensor in the oil chamber Fig 30 Sensor cable seen towards the pump Fig 31 Sensor connections SM 113 outsi...

Страница 25: ...on devices to monitor stator temperature instead of thermal switches and must be connected to the thermistor relay in the control cabinet 7 5 5 WIO sensor optional The WIO sensor is available as an ac...

Страница 26: ...tation to service workshop always support the pump by means of lifting chains or place it in horizontal position to secure stability DANGER Electric shock Death or serious personal injury Before start...

Страница 27: ...l is high this may be the result of a defective shaft seal Change the oil if it contains water Oil not containing water can be reused 5 If the oil needs to be changed place a clean container under the...

Страница 28: ...H For dry installed pumps there are two methods All methods are described here 8 4 1 Submersible pumps installation types S C and ST Submersible pumps have a separate adjustable pump inlet cover which...

Страница 29: ...arance adjustment 8 5 Pump cleaning and visual inspection A simple maintenance measure is to clean the pumps at regular intervals Lift the pumps out of the wet pit and clean the pumps on site Hose dow...

Страница 30: ...u request Grundfos to service the product contact Grundfos with the following details about the pumped liquid before returning the pump for service Otherwise Grundfos can refuse to accept the product...

Страница 31: ...oaded Let the pump cool down for approx 10 minutes and try to start again In case the pump starts now the first stop was caused by a tripping thermal switch If the fault occurs again find the cause of...

Страница 32: ...uired 4 The pump starts but stops immediately a A clogged pump causes the motor protective circuit breaker to trip out Clean the pump b An overheated motor causes the thermal switches to trip out Allo...

Страница 33: ...ys above the pump housing Fig 36 Liquid level In special situations if the motor is not fully loaded the temperature of the pumped liquid may be higher In this case contact the nearest Grundfos compan...

Страница 34: ...nting can be done through an air vent screw in top of the cooling jacket For installation type H air venting is not necessary after the pump has been filled with water S pump range Starts per hour 50...

Страница 35: ...2 100 200 135 4 54L 380 410 450 S2 100 200 170 4 54L 390 410 450 S2 100 250 135 4 54E 530 540 490 520 S2 100 250 170 4 54E 490 540 490 550 Range 58 S C D H ST2 80 125 290 258H 460 SV 80 125 290 2 58H...

Страница 36: ...56 0 S3 120 300 500 8 66M 100 0 110 0 110 0 112 0 S3 120 600 350 10 66 E 165 5 177 0 165 0 178 5 S3 120 600 500 8 66E 172 0 182 5 172 0 184 3 S range 70 S C D H S1 100 200 850 4 70H 105 0 119 5 118 5...

Страница 37: ...53 428 5005 Korea GRUNDFOS Pumps Korea Ltd 6th Floor Aju Building 679 5 Yeoksam dong Kangnam ku 135 916 Seoul Korea Phone 82 2 5317 600 Telefax 82 2 5633 725 Latvia SIA GRUNDFOS Pumps Latvia Deglava b...

Страница 38: ...splayed in this material including but not limited to Grundfos the Grundfos logo and be think innovate are registered trademarks owned by The Grundfos Group All rights reserved 2018 Grundfos Holding A...

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