HESS Hydraulic Equipment Systems and Solutions

Гидравлическое Оборудование Системы и Решения

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Duplex filter with filter element acc. to DIN 24550 50 LD(N)

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Duplex filter with filter element acc. to DIN 24550 50 LD(N)

  • Size 0040 … 0400
  • Max. operating pressure 50 bar
  • Flow, max. 135 l/min
  • Operating temperature -10 … +100 °C
  • Filters for inline installation
  • Special highly efficient filter media
  • Filtration of very fine particles and high dirt holding capacity across a broad pressure differential range
  • High collapse resistance of the filter elements
  • Standard version equipped with mechanical/visual maintenance indicator with memory function
  • Optional equipment with various electrical switching elements, modular design
  • Optional bypass valve integrated in the filter housing
  • Druckausgleichsfunktion in Umschaltung integriert
  • Optional measuring port

Size

0040 0063 0100 0130 0160 0250 0400 0150

Weight

6.8 kg 7.2 kg 8.5 kg 11.5 kg 19 g 20 kg 21.5 kg 14.6 kg

Volume

0,35 l 0,45 l 0,7 l 0,82 cm³ 1,25 l 2x1,95 l 2,9 l 0,98 l

Installation position

Vertical

Material

Filter head

GGG

Filter bowl

Aluminium

Bypass valve

Aluminum / steel / POM

Seals

NBR / FKM

 

The 50LD(N) duplex filter is suitable for direct installation into pressure lines. It is installed upstream the components to be protected. Any use in the suction area is not admissible.

It basically consists of a filter head (1) with switch-over fitting (5) and integrated pressure equalization function, two screwable filter bowls (2), two filter elements (3) as well as a mechanical/visual maintenance indicator (4).

In case of filters with low-pressure-differential-stable filter elements (= code letter pressure differential A), there is also an assembled bypass valve (10).

Via the inlet, the fluid reaches the filter element (3) where it is cleaned. The dirt particles filtered out settle in the filter element (3). Via the outlet, the filtered fluid enters the hydraulic circuit.

The filter housing and all connection elements are designed so that pressure peaks – as they may e.g. occur in case of abrupt opening of large control valves due to the accelerated fluid quantity – can be securely absorbed.

As of size 0160, the standard equipment comprises a drain screw (6).

Via the bleed screws and/or the optional bleed valves – supplementary information E – (7, 8), the filter side to be maintained can be bled.

Measuring ports in the form of threaded couplings on clean and dirt side are available in the type key under the supplementary information “M”.

By default, the filter is equipped with mechanical/visual maintenance indicator (4). The electronic switching element (9) which has to be ordered separately is attached to the mechanical/visual maintenance indicator (4) and held by means of a locking ring.

The electronic switching elements with 1 or 2 switching points are connected via a mating connector according to IEC-60947-5-2 or via a cable connection according to EN 17301-803.

Notice:

If the maintenance indicator for the element exchange is not observed, the bypass valve will open if the pressure differential increases. In this way, one part of the flow reaches the clean side of the filter without being filtered. Thus, effective filtration is no longer guaranteed.
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