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Your benefits

* Cost-effective pumping. The BG pump creates a stableprocess that leads to improved operation of the equipmentupstream of the BG and improves the total output.

* Energy savings. The BG pump runs smoothly and with highefficiency when there is a gas problem. While other pumpswould not function or have a high energy consumption.

* Saving chemicals. Large savings can be realised by using aBG pump, because the need for defoamers or other chemi-cals can be significantly reduced.

* Maintenance savings. BG is part of a Modular System allow-ing for a reduced number of spare parts, simplified serviceand shortened downtimes.

Capacity 40-4000 m/h3

Head 5-100m

Temperature Max. 100C

Flanges ISO 7005 PN10-PN16

(BS 4504-ANSI 150-JIS 10K-16K)

Lubrication Grease or oilSpecification ISO 5199 Technical specification

for centrifugal pumps class II

BG Degassing Centrifugal Pump

ApplicationsBG degassing pumps are used for pumping stock con-sistencies up to 10% and other liquids with gas contentsup to 70%. Ideal for gas handling in the recycled fibreprocess. Applications include foam from flotation cellsand pulper drum pumps.

Design

Where gas is causing an unstable flow in the process, BGis used to create a steady reliable flow. The BG pump isdesigned to separate gas from the pumped liquid.

The pumps are part of a Modular System, but with aspecial patended impeller, a special casing cover anda seal cartridge of a new design. The pump has all ofthe advantages of a Sulzer namely rugged construction,back-pull out design to simplify service and provide highefficiency.

Vacuum systemThe vacuum pump is a specially adapted liquid ringpump in stainless steel, which is capable of handlingboth water and fibres without damage. Normally, how-ever, there are no fibres in the degassing system.

The vacuum system creates the necessary differentialpressure to make the BG-pump run smoothly.

Other vacuum sources than a vacuum pump mightalso be used.

Functioning

All pumps are equipped with semi-open impellers. Theseimpellers have back vanes and special passages thatmake it possible for the gas to escape behind the impel-

ler. The gas separated in the pump is transferred throughthe seal cartridge and is then returned to the storagetank, through the vacuum pump, via a pipe above thelevel of the liquid.

Properties

50 Hz

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Code 24 27

Pump casing Duplex stainless steel High alloy stainless steel

Casing cover 2324 1.4527Wear disc Duplex stainless steel High alloy stainless steel

2324 1.4527

Impeller Duplex stainless steel High alloy stainless steel

2324 1.4527

Shaft Duplex stainless steel Duplex stainless steel

2324 2324

Shaft sleeve Duplex stainless steel High alloy stainless steel

2324 1.4539

LE LZ 1 61

ABB1 32M

3 4 5

320-1540

320-1040 425-2040

420-154043

0-2540

4

35-3040

440-3548

535-3060530-2560

315-0840

550-4060425-2048

550-40

60

315-0840

320-1040

320-1540

420-1540425-2040

430-2540435

-3040

440-3548

1500 rpm