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BOSCH REXROTH
ZSF125F1-1-2X/M/01
R901089756
Prefill Valves

Check valves: ZSF,ZSFW 125.-2x/

$4,196.00

BOSCH REXROTH

MATERIAL:  R901089756

SUMMARY:  Check valves: ZSF,ZSFW 125.-2x/

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Notice:

With size 32, 40, 100, 125, 160 a nozzle (separate order) must imperatively be provided in channel P of the upstream directional valve. The nozzle diameter is to be designed according to the prefill valve size (see "Schematics").

In case of non-compliance, increased dynamic loads may occur having detrimental effects on the operating time.

Type ZSF… (NG32, 40, 100, 125, 160)

technical illustration-ZSF125F1-1-2X/M/01-Check valves: ZSF,ZSFW 125.-2x/

Type ZSF… (NG200)

technical illustration-ZSF125F1-1-2X/M/01-Check valves: ZSF,ZSFW 125.-2x/

01

02

03

04

05

06

07

08

09

10

ZSF

F

0

1

/

M

/

01

*

01

Prefill valve, sandwich plate design

ZSF

02

Size 32

32

Size 40

40

Size 50

50

Size 63

63

Size 80

80

Size 100

100

Size 125

125

Size 160

160

Size 200

200

Type of connection

03

Flange connection

F

04

Without pre-decompression

(With pre-decompression on request)

0

Cracking pressure main poppet

05

pÖ ≈ 0,12 bar

1

06

Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions)

(NG32 … 100 and NG160)

1X

Component series 20 ... 29 (20 ... 29: unchanged installation and connection dimensions)

(Size 125 1) and 200)

2X

Seal material

07

NBR seals

M

FKM seals

V

Observe compatibility of seals with hydraulic fluid used.

Connection version

08

Mounting cavities with pipe thread according to ISO 228, DIN EN 3852-part 2

01

Pipe thread “UNF/UN” according to ANSI/ASME B 1.1

12

Nozzle bore

09

NG32, 40, 100, 125, 160 (without throttle check valve)

no code

NG50, 63, 80 (Possibility to include a throttle check valve, not fitted)

D00

NG50, 63 (throttle check valve Ø0,8 mm)

D08

NG80 (throttle check valve Ø1 mm)

D10

NG200 (throttle check valve Ø4 mm)

D40

10

Further details in the plain text

*

1) Compatible with series 1X

general

Size

32 40 50 63 80 100 125 160 200

Weight

kg

3.5 4.2 5.5 7 10 15 26 47 150

Installation position 1)

any

Ambient temperature range

°C

-30 … +80
1) Working direction of the control spool

hydraulic

Size

32 40 50 63 80 100 125 160 200

Maximum operating pressure

Port P

bar

350

Anschluss A

bar

16

Port B

bar

350

Anschluss X

bar

150

Cracking pressure 1)

bar

≈ 0.12

Flow (Δp = 0.3 bar)

Depending on the case of application, see below

Druckflüssigkeit

see table

Hydraulic fluid temperature range

°C

-30 … +70

Viscosity range

mm²/s

10 … 800

Maximum admissible degree of contamination of the hydraulic fluid 2)

Class 20/18/15 according to ISO 4406 (c)
1) Pressure differential at the main poppet for overcoming the spring force
2) 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

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)

FKM

HFDR

FKM

Containing water

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.). The ignition temperature of the hydraulic fluid used must be 50 K higher than the maximum surface temperature. Flame-resistant – containing water: Maximum pressure differential 210 bar, otherwise, increased cavitation erosion 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.

Flow qV in l/min (A to B) for different cases of application (Δp = 0,3 bar)

Size

32 40 50 63 80 100 125 160 200

Case of application 1

l/min

200 300 500 800 1200 1900 3000 4200 7000

Case of application 2

l/min

170 250 400 650 1000 1600 2600 3900 6510

Case of application 3

l/min

140 220 360 560 900 1400 2200 3400 5670

Case of application 4

l/min

100 150 240 380 620 950 1500 2300 3850

Case of application 5

l/min

70 110 170 280 450 700 1100 1690 2800

Case of application 1

technical illustration-ZSF125F1-1-2X/M/01-Check valves: ZSF,ZSFW 125.-2x/

Case of application 2

technical illustration-ZSF125F1-1-2X/M/01-Check valves: ZSF,ZSFW 125.-2x/

Case of application 3

Size of the filling tank at least 1.5 x cylinder content

technical illustration-ZSF125F1-1-2X/M/01-Check valves: ZSF,ZSFW 125.-2x/

Case of application 4

technical illustration-ZSF125F1-1-2X/M/01-Check valves: ZSF,ZSFW 125.-2x/

Case of application 5

technical illustration-ZSF125F1-1-2X/M/01-Check valves: ZSF,ZSFW 125.-2x/

Information on case of application 2 to 5

For limit areas, please contact us. It is often enough, to select a pipeline which is one size larger.

technical illustration-ZSF125F1-1-2X/M/01-Check valves: ZSF,ZSFW 125.-2x/

Note:

Wrong dimensioning of prefill valve and suction line may cause cavitation and consequential damage.

1

Cylinders

2

Prefill valve

3

This sheet is not included in the scope of delivery. With smaller tank dimensions and minimum hydraulic fluid level (a), it prevents the formation of tunnels.

4

Observe the supply cross-section

a

at least 300 mm with extended cylinder

b

up to 1000 mm with the specified maximum flows

c

h ≤ 500 mm

h

300 mm ≤ h < 500 mm

For applications outside these parameters, please consult us!

(measured with HLP46, ϑOil = 40 ±5 °C)

Size 32, 40, and 50

Pressure differential Δp between ports A and B dependent on the flow qV (A to B).

technical illustration-ZSF125F1-1-2X/M/01-Check valves: ZSF,ZSFW 125.-2x/

Size 63, 80 and 100

Pressure differential Δp between ports A and B dependent on the flow qV (A to B).

technical illustration-ZSF125F1-1-2X/M/01-Check valves: ZSF,ZSFW 125.-2x/

Size 125, 160, and 200

Pressure differential Δp between ports A and B dependent on the flow qV (A to B).

technical illustration-ZSF125F1-1-2X/M/01-Check valves: ZSF,ZSFW 125.-2x/

Without throttle check valve, NG32, 40, 100, 125, 160

Separate, external nozzle fitting required (see "Dimensions - Nozzle fitting")

technical illustration-ZSF125F1-1-2X/M/01-Check valves: ZSF,ZSFW 125.-2x/

With throttle check valve, NG50, 63, 80

Throttle check valve installed at the factory; no nozzle required

technical illustration-ZSF125F1-1-2X/M/01-Check valves: ZSF,ZSFW 125.-2x/

NG200

Throttle check valve installed at the factory; no nozzle required

technical illustration-ZSF125F1-1-2X/M/01-Check valves: ZSF,ZSFW 125.-2x/

NG32 … 160

Dimensions in mm

technical illustration-ZSF125F1-1-2X/M/01-Check valves: ZSF,ZSFW 125.-2x/
technical illustration-ZSF125F1-1-2X/M/01-Check valves: ZSF,ZSFW 125.-2x/

Required surface quality of the valve contact surface

1

Throttle check valve (only NG50, 63, 80, 200)

2

Centering diameter

3

Name plate

4

Seal rings

5

Counterflange (separate order, see "dimensional proposal for counterflange")

6

Stroke of main poppet (see "Poppet geometry and determination of the minimum pilot pressure")

7

Note: Valve contact face (e.g. pressing cylinders, bearing structures, etc.) must be sufficiently rigid. The prefill valve must not be loaded by bending.

9

Space required to remove the mating connector

10

Valve mounting screws (separate order)

11

Threads for transport device (ring bolts), evenly distributed to circumference

12

Measuring point, tightening torque MA = 30 Nm ±10%

13

Damping nozzle M8 x 1

14

Additional pressure port; if not used, seal in a hydraulically tight way by means of suitable plug screws.

NG

B1

B2

B3

B4

B5

B6

ØD1

ØD2

ØD3

D4

ØD5

ØD6

H1

H2

H3

H4

P

T1

T2

X

mm

mm

mm

mm

mm

max.

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

min.

mm

32 65 110 40 55 7.5 1.5 46 93 110 ± 0.2 M16 42 49.5 77 50 26.5 26.5 G1/2 8 30 G1/4
40 70 115 40 55 7.5 1.5 58 108 125 ± 0.2 M16 52 61.5 80 50 26.5 26.5 G1/2 10 35 G1/4
50 110 140 40 55 7.5 1.5 71 128 145 ± 0.2 M16 70 75.7 97 50 26.5 26.5 G1/2 12 30 G1/4
63 115 145 45 55 7.5 1.5 90 143 160 ± 0.2 M16 83 97.7 110 55 27.5 27.5 G3/4 14 35 G1/4
80 125 160 45 55 7.5 1.5 107 169 190 ± 0.2 M20 100 112 123 60 30 30 G3/4 16 30 G1/4
100 140 190 55 55 7.5 1.5 132 212 240 ± 0.2 M27 124 138.5 145 65 32.5 40 G1 25 55 G3/8
125 180 210 65 60 0 1.5 170 248 280 ± 0.2 M30 148 176 215 75 37.5 50 G1 33 50 G3/8
160 220 255 70 60 0 1.5 220 310 345 ± 0.2 M33 200 233 279 95 48.5 68 G1 1/4 55 50 G1/2
200 - - - - - - - - - - - - - - - - - - - - -

NG200

Dimensions in mm

technical illustration-ZSF125F1-1-2X/M/01-Check valves: ZSF,ZSFW 125.-2x/
technical illustration-ZSF125F1-1-2X/M/01-Check valves: ZSF,ZSFW 125.-2x/

Required surface quality of the valve contact surface

1

Throttle check valve (only NG50, 63, 80, 200)

3

Name plate

4

Seal rings

5

Counterflange (separate order, see "dimensional proposal for counterflange")

6

Stroke of main poppet (see "Poppet geometry and determination of the minimum pilot pressure")

7

Note: Valve contact face (e.g. pressing cylinders, bearing structures, etc.) must be sufficiently rigid. The prefill valve must not be loaded by bending.

10

Valve mounting screws (separate order)

11

Threads for transport device (ring bolts), evenly distributed to circumference

12

Measuring point, tightening torque MA = 30 Nm ±10%

Dimensional proposal for counterflange (pos. 5)

Dimensions in mm

technical illustration-ZSF125F1-1-2X/M/01-Check valves: ZSF,ZSFW 125.-2x/
technical illustration-ZSF125F1-1-2X/M/01-Check valves: ZSF,ZSFW 125.-2x/

Required surface quality of the valve contact surface

Size

32 40 50 63 80 100 125 160 200

Maximum operating pressure  pmax 1)

350 bar

Recommended flange material

C22 S355J2G3
1) When using other counterflanges than the ones specified here, it may be necessary to reduce the operating pressure.

Form of the welding gap (15):

Standard version s ≤ 16 gap form 22 DIN 2559 s > 16 gap form 3 DIN 2559 special version see DIN 2559

NG

Flange

Neck

Raised face

Ød1

Ød2

ØD

ØD5+2

b

Øk

h1

Ød3

s

r

h2

Ød4

f

mm 1)

mm

mm

mm

mm

mm

mm

mm

mm 1)

mm

mm

mm

mm

32 48.3 18 150 42 22 110 49 64 3.2 6 7 88 3
40 60.3 18 165 52 29 125 57 75 3.6 6 8 102 3
50 76.1 18 185 70 34 145 64 90 3.6 6 10 122 3
63 88.9 18 200 83 43 160 77 105 3.6 8 12 138 3
80 114.3 22 235 100 51 190 95 134 3.6 8 12 162 3
100 139.7 30 295 124 62 240 116 168 4 8 12 188 3
125 168.3 33 345 148 79 280 138 202 4.5 10 12 218 3
160 219.1 36 415 200 118 345 186 256 5.9 10 16 285 3
200 273 39 420 270 100 355 140 292 6.5 6 16 - -
1) For seamless steel pipes, wall thickness 16 according to DIN EN 10220

Valve mounting screws, counterflange (separate order)

Hexagon socket head cap screw ISO 4762 - 10.9-flZn (or DIN 912 - 10.9-flZn)

Counterflange

Size

Dimensions

Quantity

Tightening torque MA in Nm (±5 %)

1)​

Material number

Material number

32

M16 x 100

4

240

R913015640

R900842693

40

M16 x 110

4

240

R913015642

R900825610

50

M16 x 110

8

240

R913015642

R900826441

63

M16 x 130

8

240

R913014713

R900849622

80

M20 x 140

8

460

R913015675

R900862915

100

M27 x 180

8

1150

R913059494

R900834583

125

M30 x 200

8

1600

R913015753

R900861508

160

M33 x 260

12

2200

R913001904

R900846478

200

M36 x 320

16

2600

R913050473

R901205467

1) Friction coefficient μtotal = 0.09 … 0.14; please adjust in case of changed surfaces; use a manual torque wrench.

Notice:

The information on the hexagon socket head cap screws (type, length, tightening torque) refers exclusively to the use with the counterflanges listed above.

Poppet geometry and determination of the minimum pilot pressure

Dimensions in mm

technical illustration-ZSF125F1-1-2X/M/01-Check valves: ZSF,ZSFW 125.-2x/

A1

Effective area of the main poppet

A2

Effective area of the pilot poppet

A3

Effective area of the control spool

s1

Stroke of the main poppet

s2

Stroke of the control spool

F1

Spring force of the valve spring

F2

Spring force of the compression spring of the control spool

Vst

Pilot volume for opening the valve

Cracking pressure (pressure differential at the main poppet for overcoming the spring force F1)

pSt

Pilot pressure at port X

pB

System pressure at port B

NG

A1

A2 1)

A3

s1

s2

F1

F2

VstX

Unchecking ratio

cm²

cm²

cm²

mm

mm

N

N

cm³

Without pre-decompression

With pre-decompression 2)

32 8.04 0.5 2.01 8.5 6.5 9 … 22 58 … 109 1.3 4 0.3
40 13.52 0.79 3.14 10 7 14 … 29 93 … 162 2.2 4.3 0.3
50 21.24 1.13 4.71 12.5 9 23 … 49 149 … 261 4.2 4.5 0.3
63 32.67 1.77 7.07 14.5 11 35 … 63 206 … 348 7.8 4.6 0.3
80 49.02 2.54 10.18 17 13 57 … 127 310 … 579 13.2 4.8 0.3
100 73.13 3.8 15.9 22 15 81 … 193 476 … 952 25.5 4.6 0.2
125 120.76 5.72 28.27 30 22.5 135 … 319 878 … 1,667 59.4 4.3 0.2
160 196.07 9.08 45.36 40 27 241 … 516 1,335 … 2,395 122 4.3 0.2
200 314.16 - 78.54 48 34 425 … 850 2,389 … 3,822 267 4 -
1) Is omitted for version "without pre-decompression" (ZSF...0...)
2) Upon request
technical illustration-ZSF125F1-1-2X/M/01-Check valves: ZSF,ZSFW 125.-2x/

Example: Type ZSF32...

pB = 30 bar ;

pSt = 4.0 x 30 bar  = 120 bar 

Nozzle fitting

Size

32 40 50 63 80 100 125 160 200

Nozzle Ø

mm

0.8 0.8 1) 1 1) 1 1.2 1.5 4 1)
1) Throttle check valve installed at the factory (not version “00”); no nozzle required