Oil/air coolers ATEX from Bühler Technologies

for explosive atmospheres due to gas or dust

Bühler Technologies expands its range in the hydraulics and lubrication technology with coolers for explosive atmospheres due to gases and dust.

BLK ATEX-3GD and BNK ATEX-3GD series are suitable for use in zones 2 (gas) and zone 22 (dust)
and temperature class 3.

BLK ATEX-2GD and BNK ATEX-2GD series are suitable for use in zones 1 (gas) und zone 21 (dust)
and temperature class 4.

Description
Drives and hydraulic aggregates are also used in explosive areas in machine construction or raw material production.

In hydraulic systems oil transfers power and motion, in drives it’s a vital lubricant. Both as a power transfer medium and lubricant oil is heated by friction losses during operation. Oil/air coolers stabilise the temperature and are indispensable for systems and drives for consistent power. The temperature further affects the ageing behaviour and the life of oils.

To minimise the negative fluctuating oil flow has on the cooler design with varying ambient air temperatures, the BNK ATEX series features a built-in gerotor pump to circulate the oil.

Why coolers?
In many cases, installing an off-line cooler is not only an emergency solution, but also the best solution with respect to mechanics and economics. Oftentimes off-line filtration can also be incorporated quite effectively. Since a bypass also always requires installation of a separate circulation pump, it’s reasonable to combine it with the motor already installed for the fan.

The BNK series is a tiered line of oil/air coolers with circulation pump directly flange-mounted. The cooler size and pump flow rate are coordinated for performance grades compatible with the system. The gerotor pump ensures low noise emission for the entire aggregate.

Why Bühler?
When we developed the BNK series, we incorporated our years of experience in designing and selling oil/air coolers. Especially the fatigue life of the cooling matrix was a focus during development.

The cooling matrix can easily be removed from the fan case for maintenance without uninstalling the fan or motor.

If our comprehensive standard range of products does not include the right solution for your application, we will gladly develop a custom solution for you.

Advantages

ATEX - area of application: zone 1, zone 2, Zone 21 T4, Zone 22 T3 (series depending)
easy to maintain design
system-compatible cooling matrix / flow rate ratio
low noise emission
broad performance range
rugged cooling matrix
high suction pump (BNK series)
compact installation dimensions

Download product flyer.

Available series - technical documentation:

Anfragen und Bestellungen an sales@atphydraulik.ch

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