1.0040AS20-A00-0-V, R928005849, Bosch Rexroth, Filter element, MobileHydraulics

1.0040AS20-A00-0-V, R928005849, Bosch Rexroth, Filter element, MobileHydraulics

Product description

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The filter element is the central component of industrial filters. The actual filtration process takes part in the filter element. The main filter variables, such as retention capacity, dirt holding capacity and pressure loss are determined by the filter elements and the filter media used in them. Rexroth filter elements are used for the filtration of hydraulic fluids in the hydraulic system as well as for the filtration of lubricants, industrial fluids and gases.

Filter elements consist of a combination of star-like pleated filter media (3) which are laid around a perforated support tube (2). In longitudinal direction, the filter element is sealed using a 2-component adhesive and support tube and filter element mat are connected with both end disks (1). Sealing between the filter element and the filter housing is effected by means of one or two seals. There is generally flow from the outside to the inside.

All 1st filter elements of the Rexroth preferred program are made of zinc-free components thus preventing the formation of zinc-soap, in particular if water-containing fluids (HFA/HFC) and synthetic oils are used.

The use of zinc-free filter elements prevents early "element blocking", thus considerably increasing the life cycle of an element.

Therefore, Rexroth filter elements can be used universally for typical hydraulic fluids and lubricants.

Glass fiber material, H...XL
Oil cleanliness class ISO 4406	to be achieved with filter			Hydraulic system
	βx(c) = 200	Material	possible arrangement
10/6/4 ‒ 14/8/6	1 μm	Glass fiber material, H...XL	Return flow or pressure filter	Special application
13/10/8 ‒ 17/13/10	3 μm			Servo valves
15/12/10 ‒ 19/14/11	6 μm			High-response valves
17/14/10 ‒ 21/16/13	10 μm			Proportional valves
19/16/12 ‒ 22/17/14	20 μm			Pumps and valves in general

Filter medium	Oil cleanliness class ISO 4406	to be achieved with filter				Hydraulic system
		βx(c) = 200	Material	Version	possible arrangement
G10	20/18/13 ‒ 21/20/15	10 μm	Stainless steel wire mesh, G...	Special Dutch weave	Return flow, pressure or suction filter	For existing systems (hydraulics) and as protective filter (G10, G25)For fluids such as:LubricantsPetrochemical productsWaterCoolants/thermal oils
G25	Cannot be used for wire mesh > 10 µm	25 μm		Woven roving
G40		40 μm
G60 … G800		60 μm … 800 μm		Plain cloth

Filter medium	Oil cleanliness class ISO 4406			to be achieved with filter		Hydraulic system
		Filtration ratio β values 1)	Retention rate with 10 μm 1)	Material	possible arrangement
P10	20/19/14 ‒ 22/20/15	β10(c) > 2,0	50 %	Paper P...	Return flow or pressure filter	For existing systems
P25	21/20/15 ‒ 22/21/16	β10(c) > 1,25	25 %
1)​	according to ISO 16889

Filter medium	nominal filter rating
VS25	25 μm
VS40	40 μm
VS60	60 μm

Filter medium	Oil cleanliness class ISO 4406	to be achieved with filter			Hydraulic system
		βx(c) = 75	Material	possible arrangement
M5	16/13/10 ‒ 20/15/11	5 μm	Metal fibre fleece M…	Return flow or pressure filter	Filter material for special applications
M10	18/14/10 ‒ 21/17/13	10 μm

Filter medium	Oil cleanliness class ISO 4406	to be achieved with filter					Hydraulic system
		βx(c) = 200	Particle size βx(c) = 200 1)	Particle size βx(c) = 1000 1)	Material	possible arrangement
AS3	13/10/8 ‒ 17/13/10	3 μm	4,5 μm(c)	5,0 μm(c)	Aquasorb AS…	Return flow, bypass or suction filter	Servo valves
AS6	15/12/10 ‒ 19/14/11	6 μm	5,5 μm(c)	7,5 μm(c)			High-response valves
AS10	17/14/10 ‒ 21/16/13	10 μm	7,5 μm(c)	9,5 μm(c)			Proportional valves
AS20	19/16/12 ‒ 22/17/14	20 μm	20 μm(c)	22 μm(c)			Pumps and valves in general
1)	according to ISO 16889

Functional principle

Rexroth Aquasorb filter elements are pleated just like Rexroth industrial filter elements, however they contain a layer of fleece material on a water-binding fabric in the form of a fine granulate. The corresponding non-woven glass fiber media is combined behind this fleece material, depending on the filter rating.

Effectiveness

The effectiveness of the Rexroth Aquasorb elements has been proven by internal testing and by a scientific examination at an independent institute. The water content (free water) can be reduced to the saturation point of the oil. The effectiveness and water absorption depend on the load on filter area, the viscosity of the oil and the oil temperature.

The values of water absorption and the change at higher viscosities are specified below.

Design and area of application

Rexroth Aquasorb filter elements must be dimensioned so that an initial pressure drop of 0.2 bar is not exceeded. They should be preferably used as a bypass filter in the low pressure range < 5 bar. The replacement of the filter element must be carried out at a pressure differential of at least 2.2 bar.

Rexroth Aquasorb can be used only in HLP and HEES.

Aquasorb AS…
Type	Rated flow in l/min	calculative water absorption in ml
		with 15 cSt	with 30 cSt	with 46 cSt	with 120 cSt
1.0040	5	60	40	35	20
1.0063	8	100	70	55	35
1.0100	14	160	110	90	60
1.0130	19	225	155	130	85
1.0150	30	360	250	210	135
1.0160	20	265	185	155	100
1.0250	32	435	305	255	165
1.0400	40	785	550	455	300
1.0630	66	1290	900	750	490
1.1000	97	1435	1005	830	545
1.2000	189	2785	1950	1615	1055
1.2500	197	3650	2555	2115	1385
2.0040	3	35	25	20	15
2.0063	5	55	40	30	20
2.0100	8	90	65	50	35
2.0130	9	110	75	65	40
2.0150	12	145	105	85	55
2.0160	17	200	140	115	75
2.0250	28	325	225	190	125
2.0400	45	525	370	305	200
2.0630	46	715	500	415	270
2.1000	73	835	585	485	315
2.0058	105	1545	1080	895	585
2.0059	121	1790	1250	1035	680

Type code

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01	02	03		04	05	06		07		08
1.			‒				‒	0	‒

Design
01	Filter element		1. 1)
Size
02	according to DIN 24550		0040
			0063
			0100
			0160
			0250
			0400
			0630
			1000
	according to BRFS standard		0045
			0055
			0120
			0130
			0150
			0200
			0270
			2000
			2500
Filter rating in μm
03	Nominal	Stainless steel wire mesh, cleanable	G10
			G25
			G40
			G60
			G100
			G200
			G500
			G800
		Paper, not cleanable	P10
			P25
		Fleece material, not cleanable	VS25
			VS40
			VS60
	Absolute (ISO 16889)	Non-woven glass fiber media, not cleanable	H1XL
			H3XL
			H6XL
			H20XL
		Glass fiber material generation 5, non-reusable, not cleanable	PWR10
		Metal fibre fleece, not cleanable	M5
			M10
	Water-absorbing, not cleanable		AS3 2)
			AS6 2)
			AS10 2)
			AS20 2)
Pressure differential
04	max. admissible pressure differential of the filter element	30 bar	A
		160 bar	C
Element design
05	Adhesive	Standard adhesive	0
		Special adhesive	H 3)
	Material	Standard material	0
		Stainless steel 1.4571	V 4)
Bypass valve
06	Without		0
Seal
07	NBR		M
	FKM		V
1)	For the admissible temperature ranges refer to the “Technical data”
2)	Only configurable with pressure differential A = 30 bar
3)	Improved temperature and media resistance, only in connection with FKM seal
4)	Only in connection with special adhesive and FKM seal
Further filter ratings and seal materials are available upon request.

Technical data

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general

Important information on hydraulic fluids!

• For more information and data on the use of other hydraulic fluids, please refer to data sheet 90220 or contact us!

• Flame-resistant – containing water: Due to possible chemical reactions with materials or surface coatings of machine and system components, the service life with these hydraulic fluids may be less than expected. Filter materials made of filter paper P must not be used, filter elements with glass fiber material have to be used instead.

• Bio-degradable: If filter materials made of filter paper are used, the filter life may be shorter than expected due to material incompatibility and swelling.

For applications outside these parameters, please consult us!

Filtration ratio ßx(c) dependent on particle size μm(c)

Dirt holding capacity

Compared to conventional filter media with single layer technology, the H...XL filter material features a high dirt holding capacity because it is made of two separate filter layers connected in series.

Maintenance

When has the filter element to be replaced or cleaned?

As soon as the dynamic pressure or the pressure differential set at the maintenance indicator is reached, the red pushbutton of the mechanical/visual maintenance indicator pops out. If an electronic switching element is provided, an electric signal will moreover sound. In this case, the filter element must be replaced or cleaned.

If the filter does not have a maintenance indicator, we recommend exchanging or cleaning filter elements after a maximum of six months.

Filter element exchange

• For single filters: Switch off the system and discharge the filter on the pressure side.

• For installed duplex switch filters: Refer to the relevant maintenance instructions according to the filter type.

Detailed instructions with regard to the filter element exchange can be found on the data sheet of the relevant filter series.

Warning:

• Filters are containers under pressure. Before opening the filter housing, check whether the system pressure in the filter has been decreased to ambient pressure. Only then may the filter housing be opened for maintenance.

Notice:

• Due to the high viscosity, the pre-set signal value of the visual maintenance indicator may be exceeded during cold start. After the operating temperature has been reached, the mechanical/visual indicator can be acknowledged manually. The electrical signal will go out after the operating temperature has been reached. If the maintenance indicator signal is ignored, the disproportionately increasing pressure differential may damage the filter element causing it to collapse.

• Warranty becomes void if the delivered item is changed by the ordering party or third parties or improperly mounted, installed, maintained, repaired, used or exposed to environmental condition that do not comply with the installation conditions.

G…

Cleaning or replacement

Before cleaning a G... element, the filter element has to be dismantled first and then checked whether it makes sense to clean the element. For example, if the cloth contains many fibrous substances and consists of a material finer than G40, effective and complete cleaning is not possible in many cases. Filter mesh which has visible defects due to frequent cleaning must be replaced. In general, the following applies: The finer the cloth, the thinner the wire. Therefore, especially fine mesh must be cleaned gently to protect the material. Cracks in the folds of the wire mesh and the metal fiber fleece are to be avoided. Otherwise, the filter capacity will be insufficient.

Cleaning frequency

Experience has shown that filter elements made of G10, G25 and G40 can be cleaned up to ten times.

Filter mesh > 60 μm can usually be cleaned more than ten times. Reusability, however, very much depends on the type of contamination as well as on pressurisation (final Δp before dismantling the filter element). For maximum reusability, we therefore recommend exchanging in particular the fine mesh at a final Δp of 2.2 bar at the latest. Due to the given reasons, the aforementioned values must be regarded as reference values for which we do not assume any liability.

Filter variables

Filter rating and attainable oil cleanliness

The main goal when using industrial filters is not only the direct protection of machine components but to attain the required oil cleanliness.

Oil cleanliness is defined on the basis of oil cleanliness classes which classify how the amount of particles of the existing contamination is distributed in the operating liquid.

Filtration performance

Filtration ratio ßx(c) (ß value)

The retention capacity of hydraulic filters with regard to the contamination in a hydraulic system is characterized by the filtration ratio βx(c). This variable is therefore the most important performance characteristic of a hydraulic filter. It is measured in the multipass test, and is the average value of the specified initial and final pressure differential according to ISO 16889 using ISOMTD test dust.

The filtration ratio βx(c) is defined as the ratio of the particle count of the respective particle size on both sides of the filter.

Dirt holding capacity

It is also measured using the multipass test and determines the amount of test dust ISOMTD which is fed to the filter medium until a certain pressure differential increase has been reached.

Pressure loss (also pressure differential or delta p)

The pressure loss of the

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