Edwards RV3 Instruction Manual

Rotary vane pumps

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Instruction Manual

RV3, RV5, RV8 and RV12 Rotary Vane Pumps

Pump Type

Variant

2 = RV3

01 to 99

3 = RV5

4 = RV8

5 = RV12

A 65X-YY-ZZZ

Motor Description

ZZZ

903 = 220-240 V, 50/60 Hz, Single phase

904 = 100/200 V, 50/60 Hz, Single phase

905 = 200-230/380-460 V, 50/60 Hz, Three phase

906 = 110-115/120 V 50/60 Hz, Single phase

925 = 200-230/380-460 V, 50/60 Hz, Three phase

Original Instructions

A652–01–880

Issue Y

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Page 1 A652–01–880 Issue Y Instruction Manual RV3, RV5, RV8 and RV12 Rotary Vane Pumps A 65X-YY-ZZZ Pump Type Variant Motor Description 2 = RV3 01 to 99 903 = 220-240 V, 50/60 Hz, Single phase 3 = RV5 904 = 100/200 V, 50/60 Hz, Single phase...
Page 2 RH15 9TW, UK The following product A65X – YY – ZZZ Pump type Variant Motor description 2 = RV3 01 to 99 903 = 220-240V, 50/60Hz, Single phase 3 = RV5 904 = 100/200V, 50/60Hz, Single phase 4 = RV8...
Page 3 These parts can safely be used for the environmental protection use period as indicated. Pump Type Pump Size RV Pumps RV3,5,8,12, E Lab, nRVi EM Small Pumps E2M0.7, 1.5, E1M18, E2M18, 28, 30, nE2M40i nEXT Pumps nEXT 85, 240, 300, 400, Splitflow...
Page 4 This page has been intentionally left blank.
Page 5: Table Of Contents
Gas-ballast control .....................27 Start-up procedure .....................28 To achieve ultimate vacuum ..................28 To pump condensable vapours ..................29 To decontaminate the oil ....................29 © Edwards Limited 2018. All rights reserved. Page i Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 6 Installation .......................47 Operation ........................47 Maintenance ......................47 For return of equipment, complete the HS Forms at the end of this manual. Page ii © Edwards Limited 2018. All rights reserved. Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 7 Publication number Vacuum pump and vacuum system safety P400–40–100 Trademark credits ® Fomblin is a registered trademark of Ausimont SpA. © Edwards Limited 2018. All rights reserved. Page iii Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 9: Introduction
Introduction Scope and definitions This manual provides installation, operation and maintenance instructions for the Edwards RV3, RV5, RV8 and RV12 Rotary Vane Pumps. The pump must be used as specified in this manual. Read this manual before installing and operating the pump. Important safety information is highlighted as WARNING and CAUTION instructions;...
Page 10: Atex Directive Implications
Do not allow air to enter the equipment.  Ensure that the system is leak tight.  For further information, please contact Edwards: refer to the Addresses page at the end of this manual for  details. Page 2 © Edwards Limited 2018. All rights reserved.
Page 11 RV3 and RV5 pumps only; a lifting bracket is fitted to RV8 and RV12 pumps. † Single-phase pumps only. Note: Single-phase RV3/RV5 pump shown. © Edwards Limited 2018. All rights reserved. Page 3 Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 12: Description
The RV3 and RV5 pumps have a retractable lifting handle (3). The RV8 and the RV12 pumps are fitted with a lifting bracket for use with suitable lifting equipment.
Page 13: Gas-Ballast Control
All surfaces of the pump which are exposed to the pumped gases are free from copper, zinc and cadmium. Other materials of construction include fluorocarbon elastomer, nitrile, silicon, chemically-resistant polymers, nickel and stainless steel. © Edwards Limited 2018. All rights reserved. Page 5 Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 15: Technical Data
1.5 x 10 Maximum permitted outlet pressure bar gauge 0.2 x 10 0.2 x 10 0.2 x 10 0.2 x 10 © Edwards Limited 2018. All rights reserved. Page 7 Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 16: Performance Data: High Vacuum Mode
Table 3 - Performance data: High Vacuum mode HIGH VACUUM MODE  RV12 Parameter Units 1-phase 3-phase 1-phase 3-phase 1-phase 3-phase 1-phase 3-phase Gas-ballast control closed (position ‘0’) Ultimate total pressure mbar 2 x 10 2 x 10 2 x 10 2 x 10 2 x 10 2 x 10...
Page 17: Performance Data: High Throughput Mode
Table 4 - Performance data: High Throughput mode  HIGH THROUGHPUT MODE RV12 Parameter Units 1-phase 3-phase 1-phase 3-phase 1-phase 3-phase 1-phase 3-phase Gas-ballast control closed (position ‘0’) Ultimate total pressure mbar 3 x 10 3 x 10 3 x 10 3 x 10 Gas-ballast control low flow (position ‘I’) Ultimate total pressure...
Page 18: Performance Characteristics
High Throughput mode Ultimate total pressure Ultimate total pressure Ultimate total pressure mbar mbar mbar 3 x 10 6 x 10 (RV3/5) 6 (RV3/5) 1.2 x 10 (RV3) 1.2 x 10 (RV3) 4 x 10 (RV8/12) 4 (RV8/12) 1.0 x 10 (RV5) 1.0 x 10...
Page 19: Performance Characteristics
High Vacuum mode  Figure 2 - Performance characteristics in High Vacuum mode (pumping speed against inlet pressure) © Edwards Limited 2018. All rights reserved. Page 11 Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 20: Mechanical Data
50 Hz operation. † Measured at the inlet port to ISO 2372 (1974) Lubrication data Note: Edwards Material Safety Data sheets for the rotary pump oils are available on request. Table 8 - Lubrication data Parameter Reference data Recommended oil...
Page 21: Dimensions (Mm)
RV3 and RV5 pumps.) D. Front view of single-phase pump † Pump – – RV12 Single-phase pumps. † Three-phase pumps. © Edwards Limited 2018. All rights reserved. Page 13 Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 22: Electrical Data: Single-Phase Pumps
A652–01–880 Issue Y Electrical data: single-phase pumps Note: Edwards recommends using regional supply protection of the maximum ratings specified in Table 9 Table 10. Protection of a higher rating must not be used. The dual-voltage, dual-frequency motor is designed for a single-phase electrical supply and is suitable for 50 Hz or 60 Hz operation.
Page 23: Electrical Data: Three-Phase Pumps
RV8 and RV12 200–208 14.0 200–230 12.0 380–415 Observe requirements of local and regional electrical codes with respect to supply protection. © Edwards Limited 2018. All rights reserved. Page 15 Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 25: Installation
Edwards guidelines on vacuum pump and vacuum system safety (see the Associated publications at the end of the Contents list at the front of this manual), or contact Edwards for advice. A suitably trained and supervised technician must install the RV pump. Obey the safety instructions listed below when installing the pump, especially when connecting the pump into an existing system.
Page 26: Unpack And Inspect
Locate the pump The RV3 and RV5 pumps have a lifting handle enabling the pump to be moved by hand. If using mechanical lifting equipment, do not attach the equipment to the handle; for stability, use slings around the motor and the pump-body.
Page 27: Electrical Installation: Single-Phase Pumps
If the direction of rotation is incorrect, switch off the electrical supply immediately and contact the supplier or Edwards for advice. © Edwards Limited 2018. All rights reserved. Page 19 Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 28: Motor Voltage Configuration: Single-Phase Pumps
3. Voltage selector switch 4. On-off switch 5. Voltage selector switch cover 6. Retaining screws 7. Position 'I' (on) 8. Position '0' (off) Page 20 © Edwards Limited 2018. All rights reserved. Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 29: Electrical Installation: Three-Phase Pumps
Edwards recommends that the electrical supply is connected to the motor through a starter or circuit breaker which has thermal over-current protection which can be adjusted to suit the full load current ratings shown in...
Page 30: Three-Phase Electrical Connections: 200–230 V
1. Links B. Motor terminal-box Figure 6 - Three-phase electrical connections: 380–460 V A. Starter/contactor 1. Links B. Motor terminal-box Page 22 © Edwards Limited 2018. All rights reserved. Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 31: Check The Direction Of Rotation
Use a suitable valve to isolate the pump from the vacuum system if pumping condensable vapours or to  maintain vacuum when the pump is switched off. Ensure that sealing surfaces are clean and scratch-free.  © Edwards Limited 2018. All rights reserved. Page 23 Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 32: Leak-Test The System
Leak-test the system and seal any leaks found after installing the RV pump, to prevent leakage of substances out of the system and leakage of air into the system. Page 24 © Edwards Limited 2018. All rights reserved. Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 33: Operation
Use an inert gas purge into the pump gas ballast connection to prevent the condensation of flammable  vapours within the pump mechanism and exhaust pipeline. © Edwards Limited 2018. All rights reserved. Page 25 Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 34: Gas Purges
If liquids that produce flammable vapours could be present in the pump foreline, then the inert gas purge to the RV3, RV5, RV8 and RV12 rotary vane pump should be left on all the time this liquid is present. Flammable liquids could be present in the foreline as a result of condensation, or may be carried over from the process.
Page 35: Mode Selector
When using either low flow or high flow gas-ballast, there will be an increased rate of oil loss from the pump. Where possible, Edwards recommends that low flow gas-ballast (position ‘I’) is selected, rather than high flow gas-ballast (position ‘II’), to minimise the loss of oil.
Page 36: Start-Up Procedure
2.2, make sure that this is not due to the system design before contacting the supplier or Edwards for advice. In particular, the vapour pressure of all materials used in the vacuum system (including pump oil, see below) must be much lower than the specified ultimate vacuum of the pump.
Page 37: To Pump Condensable Vapours
Section 2.1. However, Edwards recommends checking the pump at regular intervals of not more than 14 days, or more frequently if pumping high volumes of gas or vapour. On single-phase pumps, the motor is protected by an overload device which isolates the pump from the electrical supply when critical temperature or current levels are exceeded.
Page 38: Shut-Down
A652–01–880 Issue Y Shut-down Edwards recommends, as described in the following procedure, decontaminating the oil before shutting down the pump; this will prevent damage to the pump by the contaminates in the oil. 1. Refer to Section 4.6 and decontaminate the oil, as required.
Page 39: Maintenance
Data Sheets for fluorinated materials used in the pump are available on request: contact the supplier or Edwards. If necessary, maintain the motor as specified in the manufacturers information supplied with the motor.  © Edwards Limited 2018. All rights reserved. Page 31 Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 40: Maintenance Plan
If necessary, adjust the maintenance plan according to prior experience. When maintaining the RV pump, use Edwards spares and maintenance kits; these contain all of the components necessary to complete maintenance operations successfully. The Item Numbers of the spares and kits are given in Section 7.3...
Page 41: Replace The Oil
5. Refit the centring-ring and filter assembly and the O-ring to the inlet-port. Refit the vacuum system to the pump inlet-port. Figure 7 - Inlet-filter assembly 1. Centring-ring and filter assembly 2. O-ring 3. Inlet-port © Edwards Limited 2018. All rights reserved. Page 33 Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 42: Inspect And Clean The Gas-Ballast Control
Figure 8 - Gas-ballast control assembly 1. Gas-ballast control 2. O-ring 3. Air-hole 4. O-ring 5. Bayonet-lugs 6. Compression spring 7. Filter element Page 34 © Edwards Limited 2018. All rights reserved. Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 43: Clean The Oil-Level Sight-Glass
Figure 9 - Sight-glass assembly 1. Screws (2 off M6 x 20) 2. Bezel 3. Sight-glass 4. O-ring 5. Oil-box © Edwards Limited 2018. All rights reserved. Page 35 Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 44: Clean The Motor Fan-Cover And Enclosure
The motor of single-phase RV pumps complies with IEC 1010–1. Edwards recommends that, to maintain compliance with IEC 1010–1, the earth continuity is less than 0.1  and the insulation resistance is greater than 10 M.
Page 45: The Pump Has Failed To Achieve The Specified Performance (Has Failed To Reach Ultimate Vacuum)
The gas-ballast control is open (in position ‘I’ or ‘II’).  The inlet valve-pad is damaged.  The inlet valve has not closed.  © Edwards Limited 2018. All rights reserved. Page 37 Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 46: The Pumping Speed Is Poor
There is an oil leak from the gas-ballast control.  There is an oil leak from the drain-plug.  There is an oil leak from the sight-glass.  Page 38 © Edwards Limited 2018. All rights reserved. Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 47: Storage And Disposal
Take particular care with components and waste oil which have been contaminated with dangerous process substances. Do not incinerate fluoroelastomer seals and O-rings. © Edwards Limited 2018. All rights reserved. Page 39 Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 49: Service And Spares
Equipment which has been serviced, repaired or rebuilt is returned with a full warranty. The local Service Centre can also provide Edwards engineers to support on-site maintenance, service or repair of the equipment.
Page 50: Spares And Maintenance Kits
Clean and Overhaul Kit (Nitrile) A652–01–137 – For use with motors fitted with a plastic terminal box manufactured before January 2010. Page 42 © Edwards Limited 2018. All rights reserved. Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 51: Accessories
Use a desiccant trap when the pump limited quantities of water vapour at high pumping speeds to a low vapour pressure. © Edwards Limited 2018. All rights reserved. Page 43 Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 52: Inlet Chemical Trap
Fit the pipeline valve between the vacuum system and the pump-inlet to provide additional system protection when the pump is switched off. Page 44 © Edwards Limited 2018. All rights reserved. Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 53: Accessories
4. Inlet chemical trap 11. Vibration isolators 5. Solenoid operated gas-ballast valve 12. Oil drain-extension 6. Foreline trap 7. Solenoid operated pipeline valve © Edwards Limited 2018. All rights reserved. Page 45 Edwards and the Edwards logo are trade marks of Edwards Limited.
Page 55: Pfpe-Prepared Rv Pumps
PFPE-prepared RV pumps Summary If a PFPE-prepared RV pump has been ordered, the pump will be supplied prepared for use with Edwards PFPE mechanical pump oils, such as Fomblin YVAC 06/6 and Krytox 1506. PFPE-prepared RV pumps are suitable for pumping high concentrations of oxygen.

This manual is also suitable for:

Rv5 Rv8 Rv12

Edwards RV3 Instruction Manual

1 Introduction

2 Technical Data

3 Installation

4 Operation

5 Maintenance

6 Storage and Disposal

7 Service and Spares

8 PFPE-Prepared RV Pumps

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