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30

PI Operation Manual

Figure 6.9 Positioning the adapter in the casing.

The ears of the adapter are aligned with the suction and discharge flanges, with the

drain on the adapter specifically aligned with the suction side. This arrangement will allow the cor

-

rect installation of the mechanical seal.

10.

Place the corresponding washers on the adapter matching the screwholes.

Figure 6.10 Placing the corresponding washers on the adapter matching the screwholes.

11.

Fasten the corresponding screws on the adapter.

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Содержание PI

Страница 1: ...In Line Vertical Pump PI Operation Manual...

Страница 2: ...part of their trade education have acquired the ability to interpret and follow the detailed specifications required for such installation care and service Successful operation of the unit is depende...

Страница 3: ...3 HAZARDS IN THE EVENT OF NON COMPLIANCE WITH THE SAFETY INSTRUCTIONS 9 2 4 COMPLIANCE WITH REGULATIONS PERTAINING TO SAFETY AT WORK 9 2 5 SAFETY INSTRUCTIONS RELEVANT FOR OPERATION 9 2 6 SAFETY INST...

Страница 4: ...TOPPING 22 5 5 SHORT TERM SHUTDOWN 22 5 6 LONG TERM SHUTDOWN 23 SECTION SIX MAINTENANCE 24 6 1 DISASSEMBLY 24 6 2 INSPECTION AND CLEANING 26 6 3 REASSEMBLY 26 6 3 1 PI Mechanical Seal Option 26 6 3 2...

Страница 5: ...equest that you give the description of the required parts together with their part numbers and identity numbers You can find these on the sectional drawing and spare part list enclosed WDM Pumps of t...

Страница 6: ...ps life 1 2 3 Adapter The adapter connects the vertical motor with the case to transmit the power to the impeller through the shafts motor and pump and the split coupling This part has with two liftin...

Страница 7: ...bserved but also the specific information provided in other sections Safety instructions given in this manual whose non compliance would affect personal and equipment safety are identified by the foll...

Страница 8: ...owing hazards Risk of injury or death Failure of important functions of the machine plant Exposure of people to electrical mechanical chemical and thermal hazards Endangering or damaging the environme...

Страница 9: ...minated before any maintenance work is performed On completion of work all safety and protective facilities must be re installed and made operative again Prior to restarting the machine follow the ins...

Страница 10: ...Pay attention to and indentify the signs marking the points of equilibrium and fastening places for ropes or the openings for forklift trucks Observe the plant s safety precautions when lifting heavy...

Страница 11: ...crate because the unit is to be reboxed 2 Remove all instruments and mechanical seal store them safely 3 Plug the instrument taps 4 Thoroughly dry the pump with hot air 5 Any painted surface damaged i...

Страница 12: ...12 Return the unit to the shipping crate 13 When the pump is to be installed remove all the protective coatings and desiccant or drain all oils One month before installation a WDM Pumps representativ...

Страница 13: ...nding conductor Request the required voltage and transformer capacity from the driver manufacturer A third option is to use an auxiliary heat source and keep the windings warm by either convection or...

Страница 14: ...8 months if stored in a dry place If stored under unfavorable climatic conditions this protective period may be considerably reduced Should the anticorrosive layer become damaged it can be repaired by...

Страница 15: ...lled in direct runs with minimum bends Short radius elbows shall be avoided near the suction nozzle If an elbow is necessary it should be of the long radius type Suction and discharge piping configura...

Страница 16: ...ould be installed in suction line so that the suction strainer may be installed and removed with a pressure gauge between the strainer and pump 6 The suction strainer should be installed between 5 to...

Страница 17: ...isolation block valves at the pump for each type of auxiliary piping Consider a slope in the suction piping to avoid high points In horizontal suction lines reducers should be eccentric with the flat...

Страница 18: ...rge side of the system beyond the check valve via a multiple breakdown orifice into the bottom of the pump case The hot liquid will then pass through the case and out the suction and return to some lo...

Страница 19: ...8 Close discharge valve 9 Start and IMMEDIATELY STOP the driver and observe the rotation of the shaft 10 Correct rotation should be in direction of rotation arrow If shaft rotation is incorrect consu...

Страница 20: ...ct rotation Check that the pumping unit is running quietly and without vibrating Unusual or too loud noises point towards a possible fault Monitor the power consumption of the drive motor Low or exces...

Страница 21: ...and made safe Do not close the suction valve until the pump has come to a full stop as it may cause the pump to run dry 6 Ensure the drive motor cannot be unintentionally turned on 7 Ensure the shut...

Страница 22: ...te warm up and start the unit at monthly intervals see SECTION 5 2 STARTUP for details b If the plant is not in an operational state turn the unit over by hand a couple of times at monthly intervals e...

Страница 23: ...SECTION 5 4 STOPPING 2 Drain all possible fluids from the pump case 3 Disconnect any auxiliary piping and wiring that could interfere with disassembly 4 When disassembling the pump match mark tag or...

Страница 24: ...ary part of the mechanical seal h Remove the gasket that was used with the stationary part of the mechanical seal 11 Unscrew the adapter from the casing First remove the screws and washers and then re...

Страница 25: ...ce for wear e Check all auxiliary piping f Check for sealing elements g Check the bushing h Check for transmission elements of the coupling 6 3 REASSEMBLY 6 3 1 PI Mechanical Seal Option Please follow...

Страница 26: ...g them to avoid contamination During assembly all threads must be protected with an anti seize agent 1 Insert the shaft key in the keyway on the impeller side of the shaft In case that the pump is PI...

Страница 27: ...peller until it reaches the step on the shaft Figure 6 3 Introducing the shaft inside the impeller until it reaches the step on the shaft Figure 6 4 Placing the impeller lockwasher into the shaft s im...

Страница 28: ...shaft s impeller side 6 Placing the impeller shaft assembly in the casing Figure 6 6 Placing the impeller shaft assembly in the casing Space between impeller and casing Impeller resting on casing s b...

Страница 29: ...8 Place the corresponding gasket in the adapter make sure to match the holes in the adapter It is recommended to grease the gasket once in place in order to accomplish the next reassembly step Figure...

Страница 30: ...es with the drain on the adapter specifically aligned with the suction side This arrangement will allow the cor rect installation of the mechanical seal 10 Place the corresponding washers on the adapt...

Страница 31: ...he adapter 12 Insert the corresponding gasket of the mechanical seal into the shaft Make sure the gasket is well positioned in the bottom of the adapter Figure 6 12 Inserting the gasket of the mechani...

Страница 32: ...mechanical seal should be aligned perpen dicular 90 to the suction and discharge flanges This orientation will allow the flushing to match directly with these holes on either side 14 Insert the corre...

Страница 33: ...head in the shaft 16 Place the corresponding washers on the adapter matching the screwholes Figure 6 16 Placing the corresponding washers on the adapter matching the screwholes 15 Introduce the mecha...

Страница 34: ...head should be aligned at 90 from the suction and discharge flanges that is perpendicular to the suction and discharge flanges pointing towards either side of the pump This will simplify the connecti...

Страница 35: ...t moves without any obstruction 19 Place the lockwasher on the shaft making sure that the screwholes match Figure 6 19 Placing the lockwasher on the shaft 20 Tighten the shaft screw on the upper end o...

Страница 36: ...adapter Figure 6 22 Placing and tighten the motor screws 22 Place and tighten the motor screws Tighten the screws crosswise to ensure a uniform as sembly 21 Position the motor vertically and place it...

Страница 37: ...the motor shaft key into its groove Figure 6 24 Inserting the impeller shaft key into its groove 25 Insert the half of the coupling that has the keyways in its interior and adjust it to the motor and...

Страница 38: ...her on both couple halves making sure that the screwholes match A lever eg a bar should be used to lift the rotor supported in the adapter and pressing against the bottom face of the half coupling in...

Страница 39: ...been installed correctly If not disassemble the coupling and repeat the last six steps 29 Tighten the setscrews of the rotating part of the mechanical seal To ensure future effective performance of t...

Страница 40: ...he tubing connector Figure 6 32 Inserting the vent assembly into its corresponding position on the casing 32 Insert the vent assembly into its corresponding position on the casing Figure 6 33 Connecti...

Страница 41: ...tion Manual Figure 6 34 Installing the coupling guard over the adapter 34 Install the coupling guard over the adapter 35 Tighten the coupling guard screws in position Figure 6 35 Tightening the coupli...

Страница 42: ...www wdmpumps com 42 PI Operation Manual Figure 6 36 Assembled pump 36 At this point the pump has been completely assembled...

Страница 43: ...steps to reassemble the PI Packing Option pump steps 13 to 18 for the driven side are the following 13 Insert two strips of packing in the packing chamber rolled to the sleeve 6 3 2 PI Packing Option...

Страница 44: ...antern ring Figure 6 39 Placing two strips of packing in the packing chamber The joining faces of each strip must not be aligned to ensure a proper assembly and function 16 Insert the two correspondin...

Страница 45: ...ert two screw bolts into the split packing gland The head of both bolts should be in the same side c Place the two corresponding nuts into the screw bolts Figure 6 41 Assembling the two equal pieces o...

Страница 46: ...18 Place the corresponding nuts in their position The nuts must be screwed by hand not using a wrench This for the proper function of the packing seal After finishing these steps refer to SECTION 6 3...

Страница 47: ...pare parts Part number from the sectional drawing Quantity Material Storage of spare parts Store the spare parts in their original packaging Store in a dry place preferably at a constant temperature C...

Страница 48: ...ing Seal Face 400 02 Mechanical Seal Gasket Bottom 475 Stationary Seal Face 900 01 Hexagonal Head Cap Screw Case 540 Bushing 900 02 Hexagonal Head Cap Screw Gland 594 Motor Adapter 900 03 Hexagonal He...

Страница 49: ...www wdmpumps com 49 PI Operation Manual Figure 8 1 Sectional Drawing...

Страница 50: ...ockets in the piping m The counter pressure of the system is greater than the design point of the pump n NPSHa too low a Change worn parts b Consult a WDM Pumps dealer c Apply correct voltage to the m...

Страница 51: ...r rotation g Clean pipe and impeller h Install vent valve or lay piping elsewhere i Change worn parts j Consult a WDM Pumps dealer k Apply correct voltage to the motor l Check the cables connections a...

Страница 52: ...stomers rely on our world class team of experienced WDM Pumps engineers technicians and product application specialists WDM offers pump products and related equipment for a wide variety of industries...

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