a36318992 - E2M18 ATEX 400V, 3ph, 50Hz Ex II 2G IIC T4

E2M18 ATEX 400V, 3ph, 50Hz Ex II 2G IIC T4

A36318992

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Overview

ATEX EM18 pumps have an external ATEX classification of Ex II 2G IIC T4 or Ex II 2G IIB T4 and are suitable for use in potentially explosive atmospheres. They share the same internal ATEX classification as our standard EM18 pumps, namely Ex II 3G c IIB T4. ATEX pumps with flameproof motors require the user to provide 2 off hazardous area cable glands and cables. In addition, connection of the thermistors to an appropriate safety circuit must be made to switch off the pump if overheating occurs. The pumps are supplied with the gas ballast port plugged. When pumping flammable gasses or vapours you must fit and inert gas purge to this port to dilute such gasses or vapours below the lower explosive limit.
Supplied with ultragrade 19 oil, NW25 O-ring and centering ring.

Technology

The motor is totally enclosed and is cooled by the motor-cooling fan which directs air along the motor fins. The motors are fitted with 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 the motor will restart.
 
An oil pressure system lubricates the pump shaft bearing surfaces and rotor sealing faces. The pump has an oil distribution valve which prevents discharge of oil to the pump interior (suckback) after the pump stops. The pumping chambers are air-tight, so this arrangement prevents oil suckback unless the gas ballast valve is open.
 
You can inspect the level and condition of oil in the oil box reservoir through the oil sight-glass. An oil filler-plug is fitted to the top of the oil box. The pump has two oil drain-plugs to allow either gravity oil drain or pressure oil drain.

Applications

  • Hazardous area pumping
a36318989 - E2M18 ATEX 230V, 1ph, 50Hz Ex II 2G IIC T4

E2M18 ATEX 230V, 1ph, 50Hz Ex II 2G IIC T4

A36318989
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a36318986 - E2M18 ATEX 115V, 1ph, 60Hz Ex II 2G IIC T4

E2M18 ATEX 115V, 1ph, 60Hz Ex II 2G IIC T4

A36318986
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a36318992 - E2M18 ATEX 400V, 3ph, 50Hz Ex II 2G IIC T4

E2M18 ATEX 400V, 3ph, 50Hz Ex II 2G IIC T4

A36318992
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Features and Benefits

  • Approved to external ATEX standards Ex II 2G IIC T4 and Ex II 2G IIB T4, which enables use in hazardous environments.

Technical Data

Displacement (swept volume)


50 Hz

20.5 m3h-1 / 12.1 ft3min-1

60 Hz

25.0 m3h-1 / 14.7 ft3min-1

Speed (Pneurop 6602)


50 Hz

17.0 m3h-1 / 10 ft3min-1

60 Hz

20.4 m3h-1 / 12.1 ft3min-1

Ultimate vacuum (total pressure)


without gas ballast

1 x 10-3 mbar / 7.4 x 10-4 Torr

with gas ballast

1.5 x 10-1 mbar / 1.1 x 10-2 Torr

Inlet connection

NW25 flange

Outlet connection

Nozzle 15 mm external diameter removable from 3/8 inch BSP tapped hole

Maximum permitted pressure at outlet

0.5 bar gauge / 7 psig

Maximum inlet pressure for water vapour

20 mbar / 15 Torr

Maximum water vapour pumping rate

0.3 kg h-1

Motor power 50/60 Hz (IP54)

0.55/ 0.75 kW

Nominal rotation speed 50/60Hz

1440/1720 rpm

Operating temperature range

13 - 40 °C

Weight

39 kg / 86 lbs

Noise

57 dB (A) @ 50 Hz

Oil capacity - max

1.05 litre

min

0.75 litre

Recommended oil (supplied)

Ultragrade 19



Performance

1
 
Without gas purge 2 With gas purge
1
 
Without gas purge 2 With gas purge

Dimensions


A B C D E
E1M18 526 247 83 159 171.4
E2M18 576 295 131 207 171.4
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a36301131 - Spares Kit C&O E1M18/E2M18

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Small Em Pumps brochure

Small Em Pumps brochure