Flygt 3153, 3171, 3202, 3301, 3315, 5100, Replacing Cooling Liquid In Pumps with Cooling Jackets

Transcription

1 Flygt 3153, 3171, 3202, 3301, 3315, 5100, 5150 Replacing Cooling Liquid In Pumps with Cooling Jackets

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3 Table of Contents Table of Contents 1 Replace the Cooling Liquid Prerequisites The water-glycol mixture Coolant and inspection plugs Depressurize the cooling jacket Empty the cooling jacket Empty the cooling liquid in the inspection chamber Fill with cooling liquid, alternative 1: complete pump Fill with cooling liquid, alternative 2: drive unit... 6 Flygt 3153, 3171, 3202, 3301, 3315, 5100, 5150 Replacing Cooling Liquid In Pumps with Cooling Jackets 1

4 1 Replace the Cooling Liquid 1 Replace the Cooling Liquid 1.1 Prerequisites The old (spent) cooling liquid can be highly alkali. Use chemical eye goggles and rubber gloves, and other appropriate personal protective equipment. For T- and Z-installations, the inlet and outlet lines must be closed off before starting work, and the piping system must be depressurized. See the Installation, Operation and Maintenance manual for the pump. Ensure adequate ventilation in the workspace. It is very important that the cooling system is depressurized before the drive unit is separated from the pump housing. See Depressurize the cooling jacket (page 3). For general safety Before starting work, make sure that the safety instructions in the Installation, Operation and Maintenance manual for the pump have been read and understood The water-glycol mixture Composition Use a cooling liquid that is a mixture of 70% deionized or distilled water, and 30% DOWCAL 200 monopropylene glycol. If DOWCAL 200 from Dow Chemical Company is not available, then contact your local Xylem representative. NOTICE: Deionized or distilled water must be used in the water-glycol mixture. Applications for potable water or ingested substances Volume of water-glycol mixture If the pumped liquid includes potable water or substances to be ingested, then contact your local Xylem sales representative. Pump (11.2) /.095/.181/.185/.350/.390/.660/ (17.6) /.810/.820/.830/.840/.850/.860/ (25.4) /.095/.180./185/.350/.390/.660/ (26.4) /.810/.820/.830/.840/.850/.860/ (43.3) /.095/.180/.185/.660/ (49.6) /.810/.820/.830/.860/ (57) (54.9) / (11.2) / (17.6) / (26.4) / (26.4) / (49.6) 1.2 Coolant and inspection plugs Quantity of water-glycol mixture, L (qt.) This image shows the plugs that are used to change the cooling liquid. 2 Flygt 3153, 3171, 3202, 3301, 3315, 5100, 5150 Replacing Cooling Liquid In Pumps with Cooling Jackets

5 1 Replace the Cooling Liquid WS001479A 1. Inspection plug 2. Coolant plugs 1.3 Depressurize the cooling jacket WARNING: Flammable Gas The chamber might contain hydrogen gas, which is flammable. Avoid sparking, electrical tools, and other sources of ignition. CAUTION: Chemical Hazard The old (spent) liquid can be highly alkali and cause caustic burns. Wear suitable gloves and chemical eye goggles or face shield. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. CAUTION: Compressed Gas Hazard Air inside the chamber may cause parts or liquid to be propelled with force. Be careful when opening. Do not stand in front of the plug. 1. Partially unscrew the uppermost coolant plug. Unscrew 2 turns only. x 2 WS009488A 2. Push inwards on the coolant plug. If there is resistance, then wait for the built-up pressure inside the cooling jacket to vent. WS009487B Flygt 3153, 3171, 3202, 3301, 3315, 5100, 5150 Replacing Cooling Liquid In Pumps with Cooling Jackets 3

6 1 Replace the Cooling Liquid 3. Push on the coolant plug again. If it is loose and has no resistance, then the pressure has been vented. Continue with the next step. 4. Re-install the coolant plug. 1.4 Empty the cooling jacket NOTICE: It is important that all of the old (spent) cooling liquid is drained. For T- and Z-installations it is necessary to remove the drive unit from the pump housing. For P- and S-installations the drive unit does not need to be separated from the pump housing. The quantity of cooling liquid can be significant. Have a container available to collect any liquid coming out. For cooling liquid volumes, see The water-glycol mixture (page 2). 1. If it is necessary to separate the drive unit from the hydraulic unit, then follow this procedure: a) Relieve any built-up pressure inside the cooling jacket. See Depressurize the cooling jacket (page 3). b) Remove the pump housing screws. c) Remove the drive unit from the pump housing. NOTICE: Do not allow the weight of the pump to rest on any portion of the impeller. The impeller must not be allowed to make contact with the concrete floor or other hard or rough surfaces. 2. Place the pump horizontally, so that one of the coolant plugs is at the lowest point of the pump, to ensure that the cooling liquid will drain completely. It is important to empty all of the cooling liquid. 3. Place a container under the pump. 4. Remove the coolant plugs and empty the cooling liquid. 4 Flygt 3153, 3171, 3202, 3301, 3315, 5100, 5150 Replacing Cooling Liquid In Pumps with Cooling Jackets

7 1 Replace the Cooling Liquid WS001411A 1.5 Empty the cooling liquid in the inspection chamber CAUTION: Compressed Gas Hazard Air inside the chamber may cause parts or liquid to be propelled with force. Be careful when opening. Hold a rag over the plug to prevent liquid from spraying out. 1. Place the pump in a vertical position. Secure it so that it cannot tip or fall. 2. Remove the inspection plug. WS002122B 3. Pump out any cooling liquid from the inspection chamber, as shown here. Flygt 3153, 3171, 3202, 3301, 3315, 5100, 5150 Replacing Cooling Liquid In Pumps with Cooling Jackets 5

8 1 Replace the Cooling Liquid WS009196B 4. Fit a new O-ring and re-install the inspection plug. Tighten the plug. Tightening torque: 44 Nm (33 ft-lbs) 1.6 Fill with cooling liquid, alternative 1: complete pump Follow these instructions if the drive unit has not been separated from the pump housing. 1. Put the pump in a vertical position. Secure the pump so that it cannot tip or fall. 2. Fill with cooling liquid until it overflows through the opposite hole, as shown here. For cooling liquid amount, see The water-glycol mixture (page 2). WS000966A 3. Fit new O-rings and re-install the coolant plugs. Tighten the plugs. Tightening torque: 44 Nm (33 ft-lb) 4. Re-install the pump in its correct position. 1.7 Fill with cooling liquid, alternative 2: drive unit If the drive unit has been separated from the pump housing then follow these instructions. 1. Put the drive unit in a vertical position. Secure the drive unit so that it cannot tip or fall. NOTICE: Do not allow the weight of the pump to rest on any portion of the impeller. The impeller must not be allowed to make contact with the concrete floor or other hard or rough surfaces. 2. Fill with cooling liquid until it overflows through the opposite hole, as shown here. For cooling liquid amount, see The water-glycol mixture (page 2). 6 Flygt 3153, 3171, 3202, 3301, 3315, 5100, 5150 Replacing Cooling Liquid In Pumps with Cooling Jackets

9 1 Replace the Cooling Liquid WS000966A 3. Fit new O-rings and reinstall the coolant plugs. Tighten the plugs. Tightening torque: 44 Nm (33 ft-lb) 4. Reinstall the drive unit onto the pump housing. 5. Complete the reinstallation of the pump. Flygt 3153, 3171, 3202, 3301, 3315, 5100, 5150 Replacing Cooling Liquid In Pumps with Cooling Jackets 7

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12 Xylem zīləm 1) The tissue in plants that brings water upward from the roots 2) A leading global water technology company We re a global team unified in a common purpose: creating innovative solutions to meet our world's water needs. Developing new technologies that will improve the way water is used, conserved, and re-used in the future is central to our work. We move, treat, analyze, and return water to the environment, and we help people use water efficiently, in their homes, buildings, factories and farms. In more than 150 countries, we have strong, long-standing relationships with customers who know us for our powerful combination of leading product brands and applications expertise, backed by a legacy of innovation. For more information on how Xylem can help you, go to xyleminc.com Refer to for contact details of your local sales and service representative. Xylem Water Solutions Global Services AB Emmaboda Sweden Tel: Fax: Visit our Web site for the latest version of this document and more information The original instruction is in English. All non-english instructions are translations of the original instruction Xylem Inc enUS_1.0_en-US_ _CLC.Flygt