Edwards nES EX Series Instruction Manual

Single stage rotary vane pump

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Table Of Contents

Table of Contents

Table of Contents
Safety
Key to the Symbols
Description
Principle of Operation
Inside the Pump (Process Gas)
Outside the Pump
Ignition Temperatures of Gases/Vapours that Can be Present
Potential Ignition Sources
Protective Measures
Technical Data
Technical Characteristics Nes40Ex
Table 1 Technical Characteristics Nes40Ex
Technical Characteristics Nes65Ex
Table 2 Technical Characteristics Nes65Ex
Technical Characteristics Nes100Ex
Table 3 Technical Characteristics Nes100Ex
Technical Characteristics Nes200Ex
Table 4 Technical Characteristics Nes200Ex
Technical Characteristics Nes300Ex
Table 5 Technical Characteristics Nes300Ex
Technical Data Nes630Ex
Table 6 Technical Data Nes630Ex
Figure 1 Dimensional Drawing Nes40Ex
Figure 2 Dimensional Drawing Nes65Ex
Figure 3 Dimensional Drawing Nes100Ex
Figure 4 Dimensional Drawing Nes200Ex
Figure 5 Dimensional Drawing Nes300Ex
Figure 6 Dimensional Drawing Nes630Ex
Figure 7 Pumping Speed Nes40Ex
Figure 8 Pumping Speed Nes65Ex
Figure 9 Pumping Speed Nes100Ex
Figure 10 Pumping Speed Nes200Ex
Figure 11 Pumping Speed Nes300Ex
Figure 12 Pumping Speed Nes630Ex
Ordering Information
Table 7 Ordering Information ATEX Category II Pumps
Table 8 Ordering Information Bare Shaft Pump
Accessories
Nes Single Stage Ex Series and Booster Combinations
Table 9 Connections
Table 10 Accessories
Spare Parts
Lubricants
Table 11 Spare Parts
Table 12 Lubricant
Transport and Storing
Transport and Packaging
Mounting Orientation
Storage
Installation
Connection to the System
Intake Side
Exhaust Side
Electrical Connections
Motor Protection Device
Figure 13 Wiring
Temperature Sensor PT100
Oil Level Switch
Over Pressure Sensor
Associated Electrical Equipment
Figure 14 Pump System Overview
Figure 15 Decision Diagram
Figure 16 Wiring Diagram
Figure 17 Example of Electrical Diagram
Figure 18 Example of Electrical Diagram
Start the Pump
Operation
Pumping of Non-Condensible Gases
Pumping of Condensible Gases and Vapours
Shut down
Ultimate Pump Pressure
Maintenance
Safety Information
Spare Parts
Maintenance Intervals
Service at Edwards Vacuum Service Technology Centre
Table 13 Maintenance Schedule
Maintenance Work
Checking the Oil Level
Checking the Oil Condition
Observe the Safety Regulations
Oil Change
Replacing the Exhaust Filters
The Pumps: Nes40Ex, Nes65Ex, Nes100
Figure 19 Exhaust Filter Replacement: Nes40Ex, Nes65Ex, Nes100
Obey the Safety Regulations
Nes200Ex
Figure 20 Nes40Ex, Nes65Ex and Nes100Ex Earth Continuity Check
Figure 21 Replace the Exhaust Filters
Nes300Ex
Figure 22 Nes200Ex Earth Continuity Check
Earthing Continuity Test
Nes300Ex
Figure 23 Nes300Ex Earth Continuity Check
Checking the Float Valve
Figure 24 Test Earth Continuity
Cleaning the Intake Port Dirt Trap
Checking the Isolation Valve
Cleaning the Gas Ballast Air Filter
Cooling Coil Cleaning (Air Cooled Pumps)
Check and Re-Tighten the V-Belts on Nes630Ex
Tension Meter
Figure 25 Using the Tension Meter
Lubricating the Bearings
Table 14 Tension Values with Goodyear Tension Meter
Table 15 Tension Values with PIX Tension Meter
Table 16 Amount of Grease Per Bearing
Replacement of Electrical Motor
Procedure for Checking the Ignition Prevention System
Motor Installation (for Bare Shaft Non-ATEX Pumps)
Motor Installation Instructions
Figure 26 Nes100Ex Motor Coupling Half Position
Motor Installation Instructions for Nes200Ex Pump
Figure 27 Nes300Ex Motor Coupling Half Position
Figure 28 Drain the Oil from the Pump
Figure 29 Remove the Pump Coupling Housing
Figure 30 Coupling Housing Removal
Figure 31 Proper Orientation
Figure 32 Turbine Support Spacing
Figure 33 Tighten Assembly
Figure 34 Reassemble
Electrical Connections
Figure 35 Replace Pump Cover
Fault Finding
Table 17 Fault Finding
Spare Parts
Figure 36 Nes40 Ex ATEX CAT 2 Spares Parts
Table 18 Nes40 Ex ATEX CAT 2 Maintenance Kit
Table 19 Nes40 Ex ATEX CAT 2 Repair Kit
Figure 37 Nes65 Ex ATEX CAT 2 Spares Parts
Table 20 Nes65 Ex ATEX CAT 2 Maintenance Kit
Table 21 Nes65 Ex ATEX CAT 2 Repair Kit
Figure 38 Nes100 Ex ATEX CAT 2 Spares Parts
Table 22 Nes100 Ex ATEX CAT 2 Maintenance Kit
Table 23 Nes100 Ex ATEX CAT 2 Repair Kit
Figure 39 Nes200 Ex ATEX CAT 2 Spares Parts
Table 24 Nes200 Ex ATEX CAT 2 Maintenance Kit
Table 25 Nes200 Ex ATEX CAT 2 Repair Kit
Figure 40 Nes300 Ex ATEX CAT 2 Spares Parts (1 of 3)
Table 26 Nes300 Ex ATEX CAT 2 Maintenance Kit
Table 27 Nes300 Ex ATEX CAT 2 Repair Kit

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nES SINGLE STAGE EX SERIES

ROTARY VANE PUMPS

INSTRUCTION MANUAL

Publication Number: A351-18-880

Issue: A

Original Instructions

edwardsvacuum.com

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Edwards nES EX Series Instruction Manual

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