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HENGST FILTERS
1004708B
R928019168

Name: HENGST FILTERS 1004708B
Brand: HENGST FILTERS
SKU: 1377498
Price: 2723.76 USD
Availability: OutOfStock

$2,723.76

HENGST FILTERS

MATERIAL: R928019168

SUMMARY:

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Function, section

The tank breathing filter guarantees air exchange in the fluid tank. Depending on the machine cycles, air can be pulled into the tank with contamination when a breather filter is not used. A tank breather filter will accomplish both the

pressure equalization and air filtration preventing contamination from entering the tank through the air exchange.

It basically consists of a threaded cover (1), a filter element (2) and a bottom housing (3) to accommodate the filter element.

The contaminated air is transported through the filter element into the hydraulic tank (T) via the opening (A). Only filtered air enters the tank. Escaping air is also directed through the filter element.

Version TLF I 7-125 and 8-250

All sizes have a flange.

Version TLF III 7-125

All sizes have a flange. Version III also has a 130 μm filling strainer (4).

When air humidity is high or when there are large temperature variations, the exchanged air may condense and promote the oxidation process of the oil. This leads to corrosion and damage to the fluid tank.

In this case, we recommend use of our “AS10” waterabsorbent filter material to dry the incoming air.

01	02	03	04		05		06	07	08		09	10	11	12
TLF				‒	S00	‒	0	0	0	‒	00		0	0

Series
01	Tank breathing filter				TLF
Connection
02	DIN flange				I
	DIN flange				III
Size
03	TLF I; TLF III				7-125
	TLF I				8-250
Filter rating in μm
04	Absolute	Glass fiber material, not cleanable		Air retention, ASHRAE 52.1, test dust SAE fine: 95% for particles > 0,3 μm	H10XL
	Nominal	Filter paper, not cleanable		Air retention, ASHRAE 52.1, test dust SAE fine: 95% for particles > 1,24 μm	P10
Pressure differential
05	Max. admissible pressure differential of the filter element 1 bar				S00
Solenoid
06	Without				0
Valve
07	Without				0
Maintenance indicator
08	Without				0
Connection
09	Frame size	7-125	8-250		00
	Connection	DIN 2573 DN125	DIN 2573 DN250
Seal
10	NBR seal				M
	FKM seal				V
Material
11	Standard				0
Supplementary information
12	Without				0

General

Type			TLF I		TLF III
Size			7-125	8-250	7-125
Installation position			Tank mounted filters
Connection	Standard		DIN 2573 DN125	DIN 2573 DN250	DIN 2573 DN125
Operating temperature range		°C	-40 … +100
Ambient temperature range		°C	-40 … +65
Storage conditions 1)	Seal	°C	-40 ... +65
	Seal FKM	°C	-20 ... +65
Material	Filter cover		Tin-coated steel
	Seals		NBR / FKM
	Filter bottom		Tin-coated steel
	Filling strainer		Stainless steel / aluminium
Weight		kg	11.4	51	11.6

1)	max. relative air humidity 65 %

For applications outside these parameters, please consult us!

Compatibility with permitted hydraulic fluids

TLF II; TLF III
Hydraulic fluid		Classification	Suitable sealing materials	Standards
Mineral oil		HLP	NBR	DIN 51524
Other hydraulic fluids upon request.
TLF I
Hydraulic fluid		Classification	Suitable sealing materials	Standards
Mineral oil		HLP	NBR	DIN 51524
Bio-degradable	Insoluble in water	HETG	NBR	VDMA 24568
		HEES	FKM
	Soluble in water	HEPG	FKM	VDMA 24568
Flame-resistant	Water-free	HFDU, HFDR	FKM	VDMA 24317
	Containing water	HFAS	NBR	DIN 24320
		HFAE	NBR
		HFC	NBR	VDMA 24317
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 (cellulose) must not be used, filter elements with glass fiber material must 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.

measured at test temperature = 20 °C

TLF...7-125

TLF...8-250

TLF I 7-125, 8-250

Dimensions in mm

TLF III 7-125

Type	A1	A2	A3	A4	A5	⌀B1	⌀B2	⌀B3	⌀B5	⌀B6	C1
Type	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
TLF I 7-125	263	154	85	36	20	350	300	375	130	200	8x ⌀18
TLF I 8-250	734	620	402	37.5	24	502	419		253	335	12x ⌀18
TLF III 7-125	263	154	85	36	20	350	300	240	130	200	8x ⌀18

Assembly, commissioning, maintenance

Assembly

The filter connection must correspond to the tank connection. If the size is TLF ... 7 or TLF I 8 version is used (version with DIN flanges), the hole pattern (DIN 2573) of the tank must be compared to the dimensions from the “Dimensions” chapter prior to installation. Install the filter on the tank. When installing the filter, the required servicing height of the replacement filter must be taken into account. For servicing reasons, we recommend installing the filter in a vertical position. All filter components must be tightened manually.

Commissioning

It is not necessary to commission the filter.

Maintenance

Exchange of the filter element

No maintenance indicator is provided, but the filter element must be changed at minimum every 6 months. Since the ambient conditions are very different depending on the place of installation, we recommend considering more frequent replacement of the filter element according to the specific installation conditions for TLF tank breathing filters.

Notice:

Vacuum switch (upon request) for monitoring the suction pressure can be mounted on the tank separately.

Warning!

The filter must not be operated without a filter element

Notes:

All work on the filter must be performed by trained specialists. Proper function and safety are only guaranteed if original Bosch Rexroth filter elements and spare parts are used. 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.

Tightening torques MA in Nm for screw-in cartridge valves

Series		TLF I 7-125 und 8-250; TLF III 7-125
Breathing filter Tightening torque with μtotal = 0.14	Nm [lbf-ft]	80 ± 8 [59 ± 5.9]
Wing nut		Tighten by hand

Directives and standardization

Classification according to the Pressure Equipment Directive

Off-line tank breathing filters according to 51415 are not classified as devices or components for the purpose of the Pressure Equipment Directive 97/23/EC (PED).

Directive 94/9/EC (ATEX)

According to the assessment of the risk of ignition, the tank breathing filters must not be used in explosive areas.