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Installation and Operation 

14 

4000481-04 

Installation and Operation 

5.1 

Unpacking 

Carefully unpack the diaphragm pump. 

Check the pump for: 

Transport damage, 

Conformity with the specifications of the supply contract (Model, electrical supply data), 

Completeness of the delivery. 

Please inform us without delay if there are discrepancies between the delivery and the con-
tractually agreed scope of delivery, or if damage is detected. 
Please take note of the general terms of business of the manufacturing firm. 

In case of a claim under warranty, the device must be returned in packaging that is 
suitable for protecting it during transport. 

5.2 

Installation and Connection 

1. Set the diaphragm pump on a flat and horizontal surface.
2. Remove the protective caps on the intake and exhaust ports.
3. Prepare the connections.
4. Connect electrically under compliance with the currently valid regulations described 

in

chapters 1.7 and 2.2.

5. Connect the vacuum connector (DN 8 and/or DN 16 KF) to the intake port.
6. Connect the pressure pipe to the exhaust connection.
7. Connect the inert gas pipe to the hose nozzles.

The user must integrate suitable monitoring of the inert gas flow in the inert gas outlet
pipe. This must also be able to simultaneously detect a malfunction, and initiate suitable
actions to prevent possible damage.

5.3 

Operation 

Observe the basic safety instructions when using the pump. 

Contents of the currently valid Operating Manual 

Compliance with the classification limits stated in Atex-Directive 

2014/34/EU

, including

the regulations governing the implementation. 

Contents of the process sequences specified for the user 

Compliance with the maintenance intervals or specification of these intervals by the user 
in the case of special processes.  

Regular inspection of the suction and pressure side connections for leaks. 

Regular inspection of the pressure-side connection for blockages. Particularly if a central 
air exhaust system has been installed. The max. outlet pressure of 1.5 bar absolute must 
not be exceeded under any circumstances. On exceeding the diaphragm pump must be 
switched off. 

Inspection of the inert gas connections and the safety device as described 

in chapter 5.2.

 

Deviations from the inert gas outflow must be detected. As the manufacturer, we recom-
mend a minimum inert gas flow of 20 l / h. A malfunction can be expected if this flow de-
viates by more than ± 10 percent during operation. The diaphragm pump is turn off, 
where appropriate, to prevent ingress of pumped liquid in the crankcase. These malfunc-
tions may be: Interruption of the inert gas flow, diaphragm ruptures or other leaks 

(see 

also chapter 7).

 

Summary of Contents for WELCH MPC 301 Zp Ex

Page 1: ...nual EN Translation of the german original manual Diaphragm pumps in an explosion proof design Models MPC 301 Zp Ex II 2G c IIB T4 X 10 C Ta 40 C MPC 601 Tp Ex II 2G c IIB T4 X 10 C Ta 40 C 4000481 04...

Page 2: ...permission of Co Gardner Denver Thomas GmbH All rights under the copyright laws are expressly reserved by Co Gardner Denver Thomas GmbH We reserve the right to make changes and amendments Gardner Denv...

Page 3: ...Pressure Pumping Speed Diagrams 12 4 3 Device Data 13 5 Installation and Operation 14 5 1 Unpacking 14 5 2 Installation and Connection 14 5 3 Operation 14 5 3 1 Start up 15 5 4 Storage 15 5 5 Scrap Di...

Page 4: ...competence required to perform the work that has to be done The user must authorize the operating personnel to do the work that has to be done The personnel must have read and understood the complete...

Page 5: ...General requirements DIN EN 61000 6 2 2011 06 DIN EN 61000 6 4 2011 09 Electromagnetic compatibility EMC Part 6 2 Generic standards Immunity for industrial environments Part 6 4 Generic standards Emi...

Page 6: ...stems Improper use can lead to injuries or material damage Observe the following instructions Only operate the diaphragm pumps with hoses of the specified dimensions The absolute pressure generated at...

Page 7: ...tact with the gases Poisonous gases Use a separator when pumping poisonous or harmful gases Prevent such substances from leaking out of the appliance or pump Treat these substances according to the ap...

Page 8: ...aphragms in stroke movement This changes the size of the space between the diaphragms and pump head pump chamber Increasing the size of the pump chamber opens the inlet valve while the outlet valve is...

Page 9: ...Ultimate pressure Model 2 mbar MPC 601 Tp Ex Note The three stage model of the diaphragm pump is fitted with a by pass and a non return valve parallel to the second and third stages These serve to re...

Page 10: ...combustible gases vapors and mists in any mix ratio that are to be pumped or which are ambient are determined according to the specifications of standard EN 13 463 1 The diaphragm pumps mentioned here...

Page 11: ...nominal units It is believed to be accurate and reliable and is offered as and aid to help in the selection of products It is the responsibility of the user to determine the suitability of the produc...

Page 12: ...Technical Data 12 4000481 04 4 2 Intake Pressure Pumping Speed Diagrams Fig 4 Intake Pressure Pumping Speed Diagram Model MPC 301 Zp Ex Fig 5 Intake Pressure Pumping Speed Diagram Model MPC 601 Tp Ex...

Page 13: ...ing gas temperature measured on the inlet of the vacuum pump C 60 60 Bearing maintenance free maintenance free Reference surface sound pressure level DIN EN ISO 2151 dB A 44 44 Rated speed 1 min 1415...

Page 14: ...ble to simultaneously detect a malfunction and initiate suitable actions to prevent possible damage 5 3 Operation Observe the basic safety instructions when using the pump Contents of the currently va...

Page 15: ...ity 90 Leave the protective elements on the suction and pressure ports Another equally good protection may be used 5 5 Scrap Disposal CAUTION The Diaphragm pumps must be disposed of in accordance with...

Page 16: ...be performed outside the areas at risk of explosion The pump must be disconnected from the power supply before maintenance work starts WARNING Only perform the work that is described here and that whi...

Page 17: ...ssary Wear protective gloves Parts must be renewed at the intervals stated in this Operating Manual or as speci fied by the user internally Do not clean with compressed air 6 2 2 Assembly see Fig 6 1...

Page 18: ...ation may only be performed by the manufacturer or authorized workshops WARNING The user shall be liable for the consequences of an incorrect damage report or a contaminated pump The statements in the...

Page 19: ...y Vacuum pump leaking Check the hose connections between the pump heads replace the hoses and or fittings if necessary Pump head leaking Service workshop Repair and or exchange Diaphragm defective Use...

Page 20: ...ber CAUTION We are not liable for any damage caused by the installation of any parts not supplied by the manufacturer 8 1 Service kit Designation Order no for MPC 301 Zp Ex MPC 601 Tp Ex Service kit 4...

Page 21: ...Spare Parts Overview 4000481 04 21 8 2 Diaphragm pump MPC 301 Zp Ex Fig 7 Exploded view MPC 301 Zp Ex...

Page 22: ...Ball bearing with piston rod 2 400647 01 7 Mass balance 1 400678 8 Covering 1 400641 01 9 Connection head 2 400901 10 PTFE insert 2 400902 11 Valve 4 400656 12 O Ring EPDM 25 x 2 4 829250 1 13 Pump he...

Page 23: ...Spare Parts Overview 4000481 04 23 8 3 Diaphragm pump MPC 601 Tp Ex Fig 8 Exploded view MPC 601 Tp Ex...

Page 24: ...on head 4 400901 11 PTFE insert 4 400902 12 Valve 8 400656 13 O Ring EPDM 25 x 2 8 829250 1 14 Pump head 4 400705 02 15 Tightening washer 4 400707 16 Diaphragm 4 400732 17 Pressure washer 4 400680 18...

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Page 36: ...Teil 1 Grundlagen und Anforderungen Non electrical equipment for use in potentially explosive atmospheres part 1 Basic method and requirements Appareils non lectriques destin s tre utilis s en atmosph...

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