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Description 

4000481-04 

3.4 

Models 

Circuitry of the pump heads: 

Two-stage (Z): 

Both pump heads are connected in series. 

Ultimate pressure 

Model 

< 8 mbar 

MPC 301 Zp Ex 

Three stage (T): 

The two pump heads are connected in parallel, two further pumps 
in series. 

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 relieve any intermediate compression which may 
occur at the start or while working in the upper pressure range. 
During maintenance or repair, ensure that they are fitted in the cor-
rect position and that they function correctly according to the wiring. 

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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