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Ventilating Filters up to 225 gpm, L1.0406/L1.0506/L1.0706/L1.0807
Application area
Ventilation of tanks for hydraulic and lubrication systems, and gearboxes.
General
The oil levels in the tanks of hydraulic systems are subject to continuous
variation due to temperature changes and the operation of cylinders and
pressure vessels.
In order to prevent over pressure in the tanks, an exchange of air with
the external atmosphere is necessary. By the use of a ventilating filter, the
outside air that is drawn in is filtered and the ingress of dust is therefore
prevented.
Special features
The ventilation openings are designed so that dust on the surface of the
tank is not drawn in, and that the ingress of spray and rainwater is largely
prevented.
The use in marine applications presents no problem due to the use of
synthetic materials and stainless steel.
Design
Flow direction bi-directional (air IN/OUT). The star-shaped pleating of the filter material results in:
- large filter surfaces
- low pressure drop
- high dirt-holding capacities
- long service life
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The Pall 0293 disposable air breather is used to prevent damaging airborne contamination from entering fluid system reservoirs.
Filtration Rating:
3 micrometers in air
Materials of Construction:
Cap and shroud%u2013polyamide
Filtration medium%u2013oleophobic resin-bonded filter fibers
Method of Construction:
Epoxy resin potted
Vacuum Indicator Minimum Operating Pressure Setting:
1.1" Hg differential (37 mb)
Vacuum indicator is not a disposable unit. Remove prior to breather unit disposal.
Temperature range:
-4°F to 160°F (-20°C to 70°C)
Filtration Medium Collapse Pressure:
15 psid (1 bar) minimum
Breather assembly supplied with blanking plug. Order reusable vacuum indicator separately.
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MAHLE crankcase ventilation systems reliably clean the gases contaminated with oil mist from the crankcase. The oil consumption can therefore be reduced further and the emission limits fulfilled. The oil mist separator integrated in the crankcase ventilation serves to separate the gas and fluid components. The separated oil is then returned to the oil circuit and the cleaned air supplied to the intake system.
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Anwendungsbereich
* Tankbelüftung
Technische Daten
* Filtermaterial: 3 μm Glasfaservlies
* Luftdurchsatz SGB-090: 0,7 m3/min
* Luftdurchsatz SGB-120: 1,5 m3/min
SGB dienen auch als Luftfilteroberteil für STAUFF-Luftentfeuchter SDB.
SPB
Area of Application
* Ventilation and tank filling
Dimensions and Styles
* SPB1: Breather cap diameter 45mm
* SPB2: Breather cap diameter 70mm
* SPB3/4/5: Breather cap diameter 101mm
Types
* Screw-in versions (Breathers, only SPB1, SPB2 and SPB3)
* Bayonet version (Filler Breathers, only SPB4 and SPB5)
Materials
* Plastic parts: glassfibre reinforced PA, basket PP
* Air filter insert: 10 µm PUR, 40 µm PUR, 3 µm inorganic glass fiber (pleated), 10 µm filterpaper (pleated), other micron ratings or filtermaterial on request
* Seals: Cork, Perbunan (NBR)
Options
* Dipsticks with integrated anti-splash feature
* Pressurised versions
* Baskets
* Thread form BSP and NPT
Custom built combinations and special requirements available on request.
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HB Type Transformer Breathers
The HB Desiccant Breather is ideal for a large range of Transformer sizes. The charge is constructed from high strength poly carbonate with the additional protection of a polythene coated metal screen, it's identical die cast end plates are sealed in position to form a very strong unit.
HBP Type Transformer Breathers
The HBP Desiccant Breather has been specially designed to provide an economical protection device for smaller Transformers having a low oil content. The Breather body and oil seal cup are moulded in high strength polycarbonate, which offers mechanical strength and weather resistance, the transparent material also allows all round visability of the Desiccant at a distance.
The design of the HBP Desiccant Breather allows the capacity to be increased for use on larger Transformers. This is known as the HBP/2.
Multiple Breather Units Types: HB55, HB66, HB77 & HB777
The design of the Hawke Desiccant Breather in its single unit form (i.e. HB2) has been limited to weights and dimensions which enable easy handling during initial installation and subsequent charge replacement. However, parallel arrangements are available for those situations where the oil volume of the transformer requires larger volumes of Desiccant gel.
Where Breather charges are operated in parallel, it is essential that only one oil valve is used, this maintains a balanced air flow through each branch of the multiple arrangement. The pipe work for the connection of two and three breathers in parallel are standard fittings.
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Non woven breather and bleeder felts made of polyester fibres.
These are recommended for the moulding of elaborate forms.
Contact us for specific non woven products : weight, size, packaging...
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The unique ELEVENT® valve design with deep-drawn full stainless steel metal housing, modular assembly as well as interchangeable components offers an optimised protection for low pressure applications.
The set pressures range from 2 mbar to 200 mbar. The ELEVENT® provides advanced seal technology and extreme stability despite low weight. The uncomplicated assembly of the valve and the very easy disassembly by means of clamp body connections are additional path-finding features of the ELEVENT®.
The optimised “air cushion“ sealing principle provides a smooth valve stroke and re-seating during operation and prevents from valve flutter and wear.
Installation and storage costs are reduced to a minimum and costs for maintenance and inspection have never been lower!
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The use of SFW/WP pressurised breather cap which create a pressure plenum chamber right above the oil level within tested limit conditions, in order to avoid any reservoir deformation, offers the following advantages:
- reduces reservoir air volume intake keeping clean oil and filter
- improves suction pump action during working conditions reducing cavitation phenomenon
- prevents fluid leakage when the system is part of a mobile unit
- reduces foam in fluid.
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