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2-ходовые встроенные клапаны, направленные функции LFA..D19 (промежуточная крышка)

Логические элементы – функция распределителя LFA..D19

Технические характеристики

  • Standard series
  • Size 16 … 63
  • Component series 7X
  • Maximum operating pressure 420 bar
  • Maximum flow 25000 l/min
  • 2 area ratios
  • 4 different springs
  • 6 different cracking pressures

general

Size

16 25 32 40 50 63

Ambient temperature range

NBR seals

°C

-30 … +60

FKM seals

°C

-20 … +60

MTTFD values according to EN ISO 13849 1)

Years

150

1) For further details, see data sheet 08012

hydraulic

Size

16 25 32 40 50 63

Maximum operating pressure

Port X 1)

bar

315
350
420

Port Z1 1)

bar

315
350
420

Port Z2 1)

bar

315
350
420

Port Y

depending on the maximum tank pressure of the attached directional valve

Maximum flow 2)

l/min

25000

Hydraulic fluid

see table

Hydraulic fluid temperature range

NBR seals

°C

-30 … +80

FKM seals

°C

-20 … +80

Viscosity range

mm²/s

2,8 … 500

Maximum admissible degree of contamination of the hydraulic fluid 3)

Class 20/18/15 according to ISO 4406 (c)

1) dependent on the attached directional valve
2) NG-dependent; see characteristic curves
3) The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection of the filters, see www.boschrexroth.com/filter.

Hydraulic fluid

Classification

Suitable sealing materials

Standards

Data sheet

Mineral oils

HL, HLP, HLPD, HVLP, HVLPD

NBR, FKM

DIN 51524

90220

Bio-degradable

1)

Insoluble in water

HETG

FKM

ISO 15380

90221

HEES

FKM

Soluble in water

HEPG

FKM

ISO 15380

Flame-resistant

Water-free

HFDU (glycol base)

FKM

ISO 12922

90222

HFDU (ester base)

1)

FKM

Containing water

1)

HFC (Fuchs Hydrotherm 46M, Petrofer Ultra Safe 620)

NBR

ISO 12922

90223

Important information on hydraulic fluids:

For further information and data on the use of other hydraulic fluids, please refer to the data sheets above or contact us.
There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.).

Flame-resistant – containing water:

Life cycle as compared to operation with mineral oil HL, HLP 30 … 100%
Maximum hydraulic fluid temperature 60 °C

Bio-degradable and flame-resistant:

If this hydraulic fluid is used, small amounts of dissolved zinc may get into the hydraulic system.


1) Not recommended for corrosion-protected version “J3” (contains zinc)

For applications outside these parameters, please consult us!

Заказной код

Артикул Наименование
R901409539 LFA 16 D19-7X/450
R901394402 LFA 32 D19-7X/450
R901301555 LFA 50 D19-7X=
R900919722 LFA16D19-7X/
R900919724 LFA25D19-7X/
R900923087 LFA32D19-7X/
R900928981 LFA40D19-7X/
R900938167 LFA50D19-7X/