2 = RV301 to 99903 = 220-240 V, 50/60 Hz, Single phase
3 = RV5904 = 100/200 V, 50/60 Hz, Single phase
4 = RV8905 = 200-230/380-460 V, 50/60 Hz, Three phase
5 = RV12906 = 110-115/120 V 50/60 Hz, Single phase
925 = 200-230/380-460 V, 50/60 Hz, Three phase
Original Instructions
This product has been manufactured under a quality management system certified to ISO 9001:2015.
P200-00-540 Issue L
2006/42/EC
Machinery directive
2014/35/EU
Low voltage directive (LVD) as applicable to electrical sub-assemblies
2011/65/EU
Restriction of certain hazardous substances (RoHS) directive
EN 1012-2:1996
+A1:2009
Compressors and vacuum pumps. Safety requirements. Vacuum pumps
EN 60034-1:2010
Rotating electrical machines. Rating and performance
EN 61010-1:2010 *
Safety requirements for electrical equipment for measurement, control and laboratory use.
General requirements
CSA-C22.2 No.77-2014#
Motors with inherent overheating protection
CSA-C22.2 No.100-2014#
Motors and generators
CSA-C22.2
No.61010-1-12
Safety requirements for electrical equipment for measurement, control and
laboratory use – Part 1: General requirements
UL61010-1
3rd Edition
Safety requirements for electrical equipment for measurement, control and
laboratory use – Part 1: General requirements
Mr Ian Keech
Declaration of Conformity
Edwards Ltd,
Innovation Drive,
Burgess Hill,
West Sussex,
RH15 9TW, UK
The following product
A65X – YY – ZZZ
Pump type Variant Motor descri ption
X YY ZZZ
2 = RV3 01 to 99 903 = 220-240V, 50/60Hz, Single phase 3 = RV5 904 = 100/200V, 50/60Hz, Single phase
4 = RV8 905 = 200-230/380-460V, 50/60Hz, Three phase
5 = RV12 906 = 110-115/120, 50/60Hz, Single phase
925 = 200-230/380-460V, 50/60Hz, Three phase set to low voltage
Is in conformity with the relevant requirements of European CE legislation:
Based on therelevantrequirements of harmonised standards:
*1-phase pumps onlyThe pumps comply with EN 61010-1 when installed in accordance with the instruction manual supplied
with the pumps.
The product also complies with the following:
#1-phase pumps only Canadian Standards Authority and Underwriters Laboratory
This covers all product serial numbers from the date of this declaration onwards.
19.03.2018, Burgess Hill
Vice President Engineerin g, Hi gh V ac uu m Division
Date and Place
This declaration is based on the requirements of EN ISO 17050-1 and the relevant directives.
P200-10-019
Issue D
Material Declaration
In accordance with the requirements of the Chinese regulatory requirement on the Ma nagement Methods for the
Restriction of the Use of Hazardous Substances in Electrical and Electronic Products Order No. 32 (also known as
‘China RoHS2’) and SJ/T 11364 Marking for the Restricted Use of Hazardous Substances in Electronic and Electrical
Products:
Product Labels
Product Product Label Meaning
This product contains hazardous substances in at least one of the
All pumps in the
list below
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
nXDS pumps nXDS 6, 10, 15, 20
EXT pumps EXT75DX
XDS pumps XDS35, 46, 100
Diaphragm XDD 1, D lab
Turbo Pump Carts T station, nEXPT, nEXT station
部件名称
Part name
铸铝
Cast Aluminium
铜管管件
Brass pipe Fittings
铜接头
Brass Connectors
2020
铅
Lead
(Pb)
Mercury
X O O O O O
X O O O O O
X O O O O O
homogeneous materials used which are above the limit requirement
in GB/T 26572 as detailed in the declaration table below.
These parts can safely be used for the environmental protection use
period as indicated.
材料成分声明
Materials Content Declaration
质
汞
(Hg)
镉
Cadmium
(Cd)
危险物
六价铬
Hexavalent
Chromium
(Cr VI)
多溴联苯
Polybrominated
biphenyls (PBB)
Polybrominated
diphenyl ethers
多溴二苯醚
(PBDE)
O:表示该有害物质在该部件的所有均质材料中的含量低于 GB/T 26572 标准规定的限量要求。
O: Indicates that the hazardous substance contained in all of the homogeneous materials for this part is below
the limit requirement in GB/T 26572.
X:表示该有害物质在该部件的至少一种均质材料中的含量超出 GB/T26572 标准规定的限量要求。
X: Indicates that the hazardous substance contained in at least one of the homogeneous materials used for
this part is above the limit requirement of GB/T26572.
NOTES: These products are EU RoHS compliant, the following Exemptions apply:
6(b) Lead as an alloying element in aluminium containing up to 0.4% by weight.
6(c) Copper alloy containing up to 4% lead by weight
Packaging Information
Pallet Over-shipper Protection Pieces Support Braces
Edwards and the Edwards logo are trade marks of Edwards Limited.
A652–01–880 Issue Y
1Introduction
1.1Scope 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; these instructions must be obeyed. The use of WARNINGS and CAUTIONS is defined below.
WARNING
Warnings are given where failure to observe the instruction could result in injury or death to
people. The actual symbol shown varies according to the hazard.
CAUTION
Cautions are given where failure to observe the instruction could result in damage to the equipment, associated
equipment and/or process.
Introduction
The units used throughout this manual conform to the SI international system of units of measurement.
The following warning labels may be present on the pump and used throughout the product documentation:
Warning – an appropriate safety instruction should be followed or a caution to a potential hazard exists.
Warning – dangerous voltage. Indicates hazards arising from dangerous voltages.
Warning – hot surfaces. To indicate that the marked item can be hot and should not be touched without
taking precautions.
Warning – heavy object. Indicates the potential risk of physical injury and requires suitable lifting
equipment to move.
Warning – use protective equipment. Indicates that protective equipment must be used.
This equipment is designed to meet the requirements of Group II Category 3 equipment in accordance with
Directive 94/9/EC of the European Parliament and the Council of 23rd March 1994 on the approximation of
the laws of the Member States concerning equipment and protective systems intended for use in potentially
explosive atmospheres. (The ATEX Directive).
The ATEX Category 3 applies in respect of potential ignition sources internal to the equipment. An ATEX Category
has not been assigned in respect of potential ignition sources on the outside of the equipment as the equipment
has not been designed for use where there is an external potentially explosive atmosphere.
There is no potential source of ignition within the pump during normal operation but there may be potential
sources of ignition under conditions of predicted and rare malfunction as defined in the Directive. Accordingly,
although the pump is designed to pump flammable materials and mixtures, operating procedures should ensure
that under all normal and reasonably predicted conditions, these materials and mixtures are not within
explosive limits. Category 3 is considered appropriate for the avoidance of ignition in the case of a rare
malfunction which allows flammable materials or mixtures to pass through the pump while within their explosive
limits.
When flammable or pyrophoric materials are present within the equipment:
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
The Edwards RV rotary vane pump is shown in Figure 1. Refer to Figure 1 for item numbers in brackets in the following
descriptions. The RV pumps are two-stage, oil-sealed, sliding-vane vacuum pumps. The pump has NW25 inlet (4) and
outlet (7) ports, a gas-ballast control (5) and a mode selector (11). When the pump is switched off, an inlet-valve
seals the inlet and prevents the suck-back of air and oil into the vacuum system.
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.
An oil-pump delivers pressurised oil to the vacuum pumping mechanism in the RV pump. The oil level and condition
can be inspected in the oil-box through a sight-glass (8). Two oil filler-plugs (6) and an oil drain-plug (9) are provided
on the oil-box.
The pump mechanism is driven directly by a single-phase or three-phase electric motor through a flexible
motor-coupling. The motor is totally enclosed and is cooled by the motor cooling-fan which directs air along the
motor fins. The pumps are cooled by an additional fan attached to the motor-coupling.
Single-phase motors are fitted with an on/off switch (12) and a thermal overload device. When the motor is too hot,
the thermal overload device switches off the pump. The thermal overload device has an automatic reset; when the
motor cools down, the device resets and (unless suitable control equipment has been incorporated which must be
manually reset: see Section 3.6.2 and Section 3.7.2), the motor will restart.
As of the end of 2009 improved motors have been fitted to RV pumps. These motors benefit from being fitted with
an aluminium terminal box and externally accessible voltage change-over switches. The introduction of these motors
has resulted in the range of motors covering all voltage and frequency conditions being reduced from four variants
to two. All motors are interchangeable and pump performance is not affected.
The pump is mounted on a base plate on rubber feet (10). Details of suitable vibration isolators and other accessories
are provided in Section 7.
Refer to Section 8 for additional information if the pump is PFPE-prepared.
1.4Performance modes and controls
The pump has two controls: the mode selector (11) and the gas-ballast control (5). Six possible combinations of these
controls allow for a wide choice of operating characteristics to optimise the performance of the pump for a given
application.
1.4.1Mode selector
The mode selector has two positions; refer to Section 4.2 to select these positions. Throughout the rest of this
manual, the following convention is used:
The High Vacuum mode is specified by the symbol.
The High Throughput mode is specified by the symbol.
With the mode selector set to High Vacuum mode , pressurised oil is fed to the low vacuum stage only. In this mode
of operation, the pump provides the best possible ultimate vacuum.
With the mode selector set to High Throughput mode
stages. In this mode of operation, the pump can sustain long-term high inlet pressures.
, pressurised oil is fed to the high vacuum and low vacuum
Edwards and the Edwards logo are trade marks of Edwards Limited.
A652–01–880 Issue Y
1.4.2Gas-ballast control
To pump high vapour loads, gas-ballast is delivered into the pump to prevent condensation of the vapour carried by
the pumped gases.
Air can be introduced to the low vacuum stage through the gas-ballast valve. Alternatively, an inert gas such as
nitrogen can be supplied through a suitable external valve.
The pump-shafts and rotors are made of high-grade cast-iron. The pump-body and oil-box are made from
cast-aluminium. 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 and the Edwards logo are trade marks of Edwards Limited.
2Technical data
2.1Operating and storage conditions
Table 1 - Operating and storage conditions
ParameterReference data
Ambient temperature range (operation)+12 to +40°C
Ambient temperature range (storage)–30 to +70°C
Normal surface temperature of the pump-body *+50 to +70°C
Maximum humidity (operation)90% RH
Maximum altitude (operation)2000 m
Pollution degree2
Installation categoryII
Area of useIndoor use
* At ultimate vacuum, with ambient temperature of 20°C.
A652–01–880 Issue Y
Technical data
2.2Performance
2.2.1General
Note:In Table 2 and Table 3, total pressures have been measured by a capacitance diaphragm gauge on a vacuum
chamber without a cold trap, as specified by Pneurop Standard 6602 (1979).
Table 2 - General performance data
ParameterReference data
High Vacuum mode performanceSee Table 3
High Throughput mode
Suckback protection1 x 10
Maximum initial pressure rise with no gas-ballast flow1 x 10-1 mbar, 10 Pa
Maximum displacement: m
50 Hz electrical supply
60 Hz electrical supply
Maximum pumping speed
(Pneurop 6602, 1979): m
50 Hz electrical supply
60 Hz electrical supply
Maximum permitted inlet pressure and gas-ballast inlet pressure