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OXiStopOXS

DescriptionHYDAC's OXiStop is a tank solutionfor hydraulic systems with integrated,

hydraulically driven degassing anddewatering unit.

An integrated membrane preventsdirect contact with the ambient air.This means that the tank can bedesigned for the differential operatingvolume actually needed, reducingits size. The pump ow rate is notimportant for the tank design.

The uid reaches a very low gas andwater content.Thanks to the membrane, whichkeeps the uid "vacuum packed",it is also possible to install theOXiStop in extremely dusty or humidenvironments.

HYDAC offers three standard sizesfor a differential operating volume upto 70 liters**. Additionally, customerspecic solutions can be realised.

The OXiStop can be equipped withan optional return line lter, water / oilcooler as well as with the AquaSensorAS and the ContaminationSensor CS.

AdvantageszOil volume reduction typically by afactor of 10

z Increased oil service life due to- 80 % less oxygen content and- reduced contamination ingression

(solid, liquid, gaseous)because of closed system bymembrane

zReduced noise due to reducedcavitation by continuous degassing

Technical data

OXS 30 OXS 45 OXS 70

Hydraulic data

Differential operating volume ** up to 30 l up to 45 l up to 70 l

Total tank volume 110 l 135 l 185 l

Typical gas removal rate * 9 l/h

Viscosity range 15 300 mm/s

Maximum uid ow rate

IN / OUT

900 l/min

Fluid temperature range 10 80 C

Ambient temperature range ** -20 40 C

Filtration unit OLF 5

Filter element (ltration unit) N5DM002

Contamination retention capacity 200 g ISOMTD p = 2.5 bar

Pump type, ltration unit Vane pump

Flow rate (ltration unit) 7.5 l/min

Operating pressure ltration unit 10 bar

Clogging indicator Differential pressure indicator, visual (VM2BM.1)

Connection A (IN / OUT) 2 x SAE 3 3000PSI

Connection B (IN / OUT) 2 x SAE 3 3000PSI

Electrical data (fltration unit)

Electrical connection (motors) See model code

Electrical power consumption 370 1,500 W, depending on type

Protection class to DIN 40050 IP54

General data

Permissible uids ** Mineral oils acc. to DIN 50524

Sealing material ** NBRMembrane material ** PU

* Typical values for ISO VG 46 @ 40 C. The gas removal rate depends on the total gas content in the oil,the oil temperature and especially on the oil viscosity. With increasing viscosity, the gas removal rate is reduced.

** others on request

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Typenschlssel

OXS 30 N 1 5 2 2 1 ACD /-

ProductOXS = OXiStop

Size30 = Differential operating volume up to 30 l45 = Differential operating volume up to 45 l70 = Differential operating volume up to 70 l

Supply voltage (motors)N = 400 Volt / 50Hz / 3 Ph

Sealing material / mebrane material1 = NBR seals, PU membrane

Return line flter *Z = without1 = NF160 for lter element 0160 R xx xxxx xx2 = NF240 for lter element 0240 R xx xxxx xx3 = NF280 for lter element 0280 R xx xxxx xx

4 = NF330 for lter element 0330 R xx xxxx xx5 = NF500 for lter element 0500 R xx xxxx xx6 = NF750 for lter element 0750 R xx xxxx xx

Cooler (with vane pump MFZP-2**Z = without1 = HYDAC HEX S615, 20 plates2 = HYDAC HEX S615, 40 plates

Vacuum pressure monitoring degassing unit1 = Pressure gauge2 = Electronic pressure sensor (EDS)

Level / temperature monitoring1 = Level MIN switch / temperature MAX switch (FSK)2 = Electronic distance sensor (HLS) /

electronic temperature transmitter (ETS)3 = Electronic distance sensor (HLS) /

temperature MAX switch (FSK)

Measurement equipmentZ = withoutACD = AquaSensor (AS 3008) + ContaminationSensor (CS1320-A-0-0-0-1)

Supplementary details

without details = standard

* The return line lter is supplied without lter element and clogging indicator.Please order separately. For information about design and for technical detailssee brochure 7.112 NF inline lter

** For information about design and for technical details of the cooler, see brochure5.804 Plate-type heat exchanger

AccessorieszFilter elements for bypass owlter OLF 5 (1 x N5DM002 alreadyinstalled)

Part no.: Designation

349494 N5DM002 (2 m)

3068101 N5DM005 (5 m)

3102924 N5DM010 (10 m)

3023508 N5DM020 (20 m)

zFilter elements for optional returnline lter, see brochure 7.112 NFinline lter

zElectric clogging indicators, seebrochure 7.112 NF inline lter

zSilicone heater for attaching to thesurface of the tank, self-adhesive,approx. 500 W (on request)

SizingThe size required by the OXiStop canbe calculated based on the actualvolume differences of cylinders,accumulators, etc. that can occur in asystem. In addition, it is necessary toconsider a required volume for thethermal expansion of the oil andpossible continuous oil losses. Thisvolume can be doubled, as a safety

margin.

Rule of thumb:

Total volume difference of cylinders, etc+ Temperature expansion volume

Necessary volume

Differential operating volume OxiStop =2 x necessary volume

Also, it is necessary to check whetherthe total oil volume in the systemneeds to be returned to the tankwhen maintenance work is carriedout.

Scope of deliveryzOXiStop tank acc. to modelcode incl. tank with integratedmembrane, MiniOx degassingunit, bypass ow ltration unit withoptional ContaminationSensor CS1000 and AquaSensor AS 3000,electronic or optical uid levelindicator, breather lter and pipingof the individual components

zOperating and maintenance

instructions for installedcomponents

zOXiStop lling instructions

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Dimensions

Hydraulic circuit

H

h

45635900

6667

84

217.5 200

141

Min.

400

2 x SAE3" 3000PSI

348

217.5 200 217.5

141

2 x SAE3" 3000PSI

117

90100

A

B

348

2 x G1-1/2"

440

595

4 x 15

Position Component

1 OxiStop tank with integrated tankmembrane

2 MiniOX degasication anddewatering unit

3 OLF 5 ofine ltration unit

4 Optical uid level indicator withintegrated level and temperatureswitch (optional)

5 Electronic uid level indicator(optional)

6 Cooler HEXS615 (optional)

7 Cooler pump MFZP-2, approx. 60 l/min @ 50Hz (optional)

8 Return line lter NFxxx (optional)

9 Air lter

10 Vacuum pressure monitoringdegassing unit

A, B Hydraulic connectors

Space for elementreplacement

h H

OXS 30 580 963

OXS 45 690 1073

OXS 70 905 1288

A B

NF160 205 160

NF240 264 220

NF280 360 400

NF330 294 170

NF500 375 250

NF750 726 600

Space for elementreplacement

39210

5

4

8

6

(B)

(A)

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NoteThe information in this brochure relates to the operating conditions andapplications described.

For applications and operating conditions not described, please contactthe relevant technical department.

Subject to technical modications.

HYDAC FILTER SYSTEMS GMBHIndustriegebietD-66280 Sulzbach / SaarTel.:+49 (0) 6897/509-01Fax:+49 (0) 6897/509-846Internet: www.hydac.comE-Mail: ltersystems@hydac.com