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Objektnummer	B00014636
Seriennummer	014636
Nome oggetto	Edwards RV8
Stato	Archiv

Status, terms of delivery and payment

Verification of devices

The second-hand devices are verified by Labexchange Service GmbH before delivery. You are receiving only fully functional devices.

Dispatch time

The stated dispatch times are the shortest possible ones for each article. The effective dispatch times can vary. The effective dispatch times will be stated in the order confirmation.

As a matter of principle, we are offering collective deliveries. The shipping time is calculated based on the position with the longest lead time. A partial delivery is possible on explicit request.

Shipping methods

Parcel services, forwarding agencies, self-pickup, delivery by Labexchange fleet.

Delivery information

Prices exclude shipping costs. Stated shipping costs are to be expected. Deviations are possible. If transport costs are not specified, please ask separately for them.

The stated transport and packing charges apply to the most favorable route if transport and are to be understood as subject to verification due to unexpected cost increases. By reason of unpredictable events, cargo rates and delivery times can change at any time and therefore have to be adapted to the recent situation. Import formalities and possible customs charges will be borne by the purchaser. Incoterm coding according to Incoterms 2010: For persons who collect the devices themselves: EXW, for dipatch by sea: CFR, by air freight: CPT, other shipments: DAP. Note for international shipments: A proof of preference/EUR1 will not be issued by us. When self-collecting/ordering EXW from countries within or outside the European Union, 16% VAT will be retained as a deposit until we have received the corresponding confirmation of arrival/bill of delivery from the buyer.

Terms of payment

We do not accept payment by letter of credit, PayPal, etc. In each case the invoice amount is payable without deduction. Discount is not granted.

Country	Possible payment methods	Comment
DE, AT, CH	Payment by invoice, payment in advance, payment by credit card	Payment by invoice is only possible for corporate clients.
NL, BE, LU	Payment by invoice, payment in advance, payment by credit card	Payment by invoice is only possible for corporate clients
Other countries	Payment in advance, payment by credit card

Our General Terms of Sale, Delivery and Payment are valid and are available for download here.

The goods are offered subject to prior sale.

Definition of status

All articles are used articles, except an article is listed especially as a new device.

Status	Condition	Comment
Immediately available	Used	The article is fully functional and in impeccable condition. It can be shipped immediately.
In stock	Used	The article is on stock. Our service technicians will verify the article before delivery. You are receiving only a fully functional article.
Published	Used	The article is still with the provider. After your order the article will be purchased and verified by us before being shipped to you. A certificate of operativeness as well as a service report are included in delivery.
New device	new	The article is brand new and unused. Regarding new equipment the guarantee/warranty conditions of the corresponding manufacturer apply.
Labprocure	Used	Labprocure GmbH, as the advertiser, is responsible for the content of this device offer. Labprocure assumes liability for the offers advertised here and for the photos and offer texts included. Labprocure GmbH, Bruckstraße 58, 72393 Burladingen.

Firma: Edwards

Modell: RV8

Kommentar: Dokumente engl.

The following illustrations and descriptions are referring to the instrument model and are drawn from brochures. They are not representing the delivery volume. The exact delivery content you will find only in the offering text.

Description

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 ai 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. You can inspect the level and condition of the oil 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 you have incorporated suitable control equipment which must be manually reset: see Section 3.6.2), the motor will restart.

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.

Performance 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 so you can optimize the performance of the puinp for a given application.

Mode selector

The mode selector has two positions; refer to Section 4.1 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 thea 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 vacuuin.

With the mode selector set to High Throughput mode pressurised oil is fed to the high vacuum and low vacuum stages. In this mode of operation, the pump cart sustain long-term high inlet pressures.

Gas-ballast control

To puxnp high vapour loads, gas-ballast is delivered into the pump to prevent condensation of the vapour carned 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 extemal valve.

The gas-ballast control has three positions:

Closed (position 0)

Low flow (position I)

High flow (position II).

Construction

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 cad.mium.

Other materials of construction include fluorocarbon elastomer, nitrile, silicon, chemicallyresistant polymers, nickel and stainless steel.

Mechanical data General

Degree of protection (IEC 34-5: 1981) IP44 (single-phase pumps)

IP54 (three-phase pumps)

Maximum tilt angle 10°

Motor rotational speed (50 Hz supply) 1470 r.min^-1

Motor rotational speed (60 Hz supply) 1760 r.min^-1

RV8

Maximum mass, without oil (kg) 26.0

Noise and vibration data

Sound pressure, measured at ultimate vacuum 1 metre from 1-phase 3-phase

the end of the pump to ISO 11201, High Vacuum mode,

50 Hz operation 48 dB (A) 50 dB(A)

Vibration severity: measured at the inlet port to ISO 2372 (1974) Class 1C Class 1C

Gruppo prodotti: Pompe per Vuoto

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