Related Manuals for Jesco MIDIDOS E Series
Summary of Contents for Jesco MIDIDOS E Series
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Page 1: Maintenance Instructions
MIDIDOS E Diaphragm Dosing Pump Operation & Maintenance Instructions Read these operation and maintenance instructions before start up! To be held for future reference. Dosing Liquids Conveying Gases Control Systems... -
Page 2: Table Of Contents
Content 1. Safety ............................ 3 1.1 General .......................... 3 1.2 Warning symbols used in this Operation & Maintenance Manual ........3 1.3 Qualification and training of personnel ................4 1.4 Important safety instructions ................... 4 1.5 Hazards due to non-compliance with safety instructions ............ 4 1.6 Safe operation ........................ -
Page 3: Safety
1. Safety 1.1 General This Operation & Maintenance Manual contains basic information to be noted during in- stallation, operation and maintenance. It is therefore essential that the contractor read the manual before installing and commissioning the pump/system as well as by the relevant operating personnel/owner of the pump/system. -
Page 4: Qualification And Training Of Personnel
1.3 Qualification and training of personnel The personnel employed for installation, operation, inspection and maintenance work must be qualified to do so. The areas of responsibility, competence and supervision of the per- sonnel must be precisely defined by the owner. Personnel who do not have the required knowledge must be duly rained and instructed. -
Page 5: Safe Operation
The following hazard in particular may arise: • Danger to people due to electrical, mechanical and chemical effects. • Failure of dosing pump/system functions. • Failure of specified methods for maintenance and repair. • Danger to the environment due to leakage of hazardous substances. 1.6 Safe operation The safety instructions in this Operation &... -
Page 6: Dosing Of Chemicals
1.11 Dosing of chemicals CAUTION! When working on dosing systems, the accident prevention regulations applicable on-site must be observed and the specified personal protective clothing is recommended, depen- ding on the hazard associated with the metered medium: CAUTION! Googles Protective gloves Protective suit It is recommended that all people responsible for the installation and maintenance of piping, hoses and accessories should wear this protective clothing. -
Page 7: Scope Of Delivery
CAUTION! If connections at the dosing head are loosened during operation for venting or other rea- sons, the leaked chemicals must be removed professionally. This is the only way to avoid the danger of physical injury and corrosion at the dosing pump. Leaking chemicals may CAUTION! also damage the diaphragm pump at its mounting points. -
Page 8: General
2. General Dosing pumps are used to add chemicals in various processes. As leak free diaphragm dosing pumps with a dosing range of between max. 2 l/h and 120 l/h the MIDIDOS E has a broad field of application. The MIDIDOS E is supplied as a simple dosing pump with the dosing head mounted on the left hand side. -
Page 9: Function
3. Function The gearbox is based on a single level worm-wheel transmission. The gear parts as well as the storage are greased for life. The dosing stroke functions through a cam that the membrane moves over a spring-loaded tappet. The siphon is reached through a spring- loaded position. -
Page 10: Technical Data
4. Technical Data MIDIDOS E 24 E 48 E 72 E 120 Flow rate [l/h] - max. pressure [bar] 24 - 10 48 - 10 80 - 6 114 - 4 max. pressure at 1~ mode [bar] Stroke frequency [1/min] Stroke volume [ml/Hub] 20.8 Diaphragm-Ø... -
Page 11: Mechanical Handling Capacity Performance Curves
MIDIDOS E48 MIDIDOS E24 2 bar 2 bar 2 bar 5. Mechanical Handling Capacity Performance Curves 10 bar 10 bar The performance curves of the handling capacity are at 20°C (68°F) for water. Media (spe- cific gravity and viscosity) and temperature change the handling capacity. Therefore dosing 10 bar pumps have to be litered out when used. -
Page 12: Measurement Drawing
6. Measurement Drawing (~284) (~145) Dimensions in mm, Dimensions for MIDIDIS E 120 in parenthesis. 12 | Operation Manual MIDIDOS E | Measurement Drawing... -
Page 13: Installation
7. Installation 7.1 General information For the selection of a dosing pump when designing a system as well as for the installation and operation, local rules and regulations must be obeyed. This applies to the selection of appropriate materials of construction for the pump, the handling of chemicals and the electrical installation. -
Page 14: Drainage Discharge
The dosing pump is to be erected with the suction and pressure valves in an upright positi- on. To guarantee its stability, the pump must be screwed appropriately into the ground. The system’s piping must not put any force on the dosing pump’s connections or valves. To avoid backfiring dosing after the process end, an electrical and hydraulically locking device is provided on the dosing pump. -
Page 15: Injection Nozzles
the discharge side of the dosing pump that may be caused for example by the accidental closing of valves whilst the pump is in operation or by a clogged injector. The PENTABLOC is a combi-accessory that combines, amongst others, the function of a pressure-sustaining valve as well as being a safety valve. - Page 16 Electrical connection data (variants on request) Pump sizes voltage output electricity MIDIDOS [Watt] E 24...120 400/230 0,50/0,87 50 Hz 440/254 0,46/0,80 60 Hz 400/230 0,42/0,73 60 Hz 230/1-Phase 0,85 50 Hz 120//1-Phase 60 Hz Connection system for the driving motor Supply of three-phase current Y-circuit ∆-circuit...
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Page 17: Installation Example
7.7 Installation example Legend a MIDIDOS E b Electric agitator c Chemical tank d Pulsation dampener e Pressure relief valve (safety valve) f Diaphragm stop-valve g Injection nozzle Installation | Operation Manual MIDIDOS E | 17... -
Page 18: Stroke Length Setting
8. Stroke Length Setting CAUTION! The pump’s stroke length is to be moved only when the motor is running! CAUTION! Set the stroke length as follows: 1. Loosen the mounted screw of the setting knob anti-clockwise (around to the left) 2. -
Page 19: Start Up
9. Start Up NOTICE! Personal protective equipment as specified by on-site regulations must be worn at all times while working on the dosing pump! NOTICE! Goggles Protective gloves Protective suit 1. Before starting up the dosing pump all the stages for “Installation” in chapter 7 have to be carried out. -
Page 20: Shutdown
10. Shutdown Before starting any maintenance and before prolonged downtime, drain the chemical from the pump and rinse it out with a neutral medium. CAUTION! Excess chemicals must be disposed of in accordance with local rules and regulations. Note the applicable accident prevention regulations and wear personal protective clothing. CAUTION! Goggles Protective gloves... -
Page 21: Maintenance
11. Maintenance Dosing pumps are produced according to the highest quality standards and have a long service life. Nevertheless some parts are subject to wear and tear caused by its running (e.g. diaphragm, valve seats, valve balls). To ensure a long operating life, visual inspection is recommended regularly. -
Page 22: Replacing The Diaphragm
11.3 Replacing the diaphragm CAUTION! Chemicals may spray out this may lead to caustic or other burns. The dosing pump head must always be depressurized and rinsed with water or another suitable medium before starting any work on the dosing pump. CAUTION! Legend a Dosing head... - Page 23 5. The diaphragm rod has to be greased with Fig. 3 Molykote Longterm W2, only in the area of the bulkhead receptacle and along the diaphragm thread. 6. The supporting plate c is turned onto the arched side of the diaphragm and pushed onto the thread support of the new dia- Fig.
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Page 24: Valves
11.4 Valves The dosing pump valves have to be cleaned on a regular basis. CAUTION! Chemicals may spray out causing caustic as well as other burns. Before working on the pump, release any pressure and wash with water or another suitable medium. CAUTION! NOTICE! Unclean valves will reduce the dosing accuracy. - Page 25 Spring-loaded valves DN6 (MIDIDOS E24…E72) Pressure valve suction valve Legend 1. 0-ring 2. *valve casing 3. 0-ring 4. *ball guide 5. *valve ball 6. valve seat* 7. 0-ring 8. spring *not included in spare parts. Maintenance | Operation Manual MIDIDOS E | 25...
- Page 26 Double ball valve DN 10 (MIDIDOS E120) Pressure valve suction valve Legend 1. 0-ring 2. 0-ring 3. *valve casing 4. *ball guide 5. *valve ball 6. valve seat* 7. 0-ring 8. spring *not included in spare parts. 26 | Operation Manual MIDIDOS E | Maintenance...
- Page 27 Spring-loaded valves DN 10 (MIDIDOS E120) Pressure valve Suction valve Legend 1. 0-ring 2. 0-ring 3. *valve casing 4. *ball guide 5. *valve ball 6. valve seat* 7. 0-ring 8. O-ring 9. spring *not included in spare parts. Maintenance | Operation Manual MIDIDOS E | 27...
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Page 28: Spare Parts List Mididos E 24
12. Spare parts list MIDIDOS E 24...72 81465 Diaphragm 28977 Support plate g Dosing head including screws Material Order no.: 23909 34661 PVDF 33330 Stainless steel 1.4571 23911 28 | Operation Manual MIDIDOS E | Spare parts list MIDIDOS E 24...7... - Page 29 Spare parts for MIDIDOS E 24...72 with double balls/valves DN6 Consisting of: Material Order no.: a balls PVC/Glas/FPM 28275 c valve seats PVC/Glas/CSM 28274 d O-ring diaphragm PP/Glas/FPM 35567 PP/Glas/CSM 35346 PVDF/PTFE/FPM 35756 Stainless steel / FPM 28277 e Double ball valve DN6 complete Material Order no.: Suction valve...
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Page 30: Spare Parts List Mididos E 120
12. Spare parts list MIDIDOS E 120 81466 Diaphragm g Dosing head inclusive of screws Material Order-no.: 38306 PP grey 38178 Stainless steel 1.4571 32890 PVDF 32892 30 | Operation Manual MIDIDOS E | Spare parts list MIDIDOS E 120... - Page 31 Spare parts for MIDIDOS E 120 with double ball valves DN10 Consisting of: Material Order-no.: a balls PVC/Glas/FPM 38196 c valve seats PVC/Glas/CSM 38197 d O-rings Diaphragm PP/Glas/FPM 28301 PP/Glas/CSM 28300 Stainless steel / FPM 28303 PVDF/PTFE/FPM 38310 e Double ball valve DN10 complete Material Order-no.
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Page 32: Troubleshooting
- Install priming aid Viscosity too high. - Install spring-loaded valves - Enlarge the pipe cross section - Use a special dosing head. >> Contact Lutz-Jesco No existing stroke Dosing pump set on 0 strokes. Correctly adjust the pump stroke length. motion. -
Page 33: Declaration Of Conformity
14. Declaration of conformity Declaration of conformity | Operation Manual MIDIDOS E | 33... -
Page 34: Declaration Of Harmlessness
15. Declaration of harmlessness Please copy and send in with your apparatus! Display anon the outer packaging. Declaration of harmlessness (please fill out a separate form for each appliance – e.g. pump or accessory) We forward the following dosing equipment for repairs: Type (dosing pump or accessory): ____________________________________________________ Part-no.: _______________________________________________________________________ Order-no.: ______________________________________________________________________... -
Page 35: Warranty
Sender Company: ................. Phone: ........Date: ........Address: ....................................Contact person: ................................... Lutz-Jesco order-no.: ............Delivery date: ................MIDIDOS type: ..............Serial no.: ................... Nominal capacitynominal pressure: ............................Description of fault: ....................................................................... - Page 36 East Asia Middle East Lutz-JESCO America Corp. Lutz-Jesco Lutz-Jesco Middle East FZE East Asia Sdn Bhd 55 Bermar Park 6 Jalan Saudagar U1/16 P.O. Box 9614 Rochester, NY 14624 Hicom Glenmarie Industrial Park SAIF-Free Zone Center...