RE 50 031/02.

00

RE 50 031/02.00
Replaces: 50 030

Pressure gauge – Isolator valve

Type AF 6

Nominal size 6
Series 4X
Maximum operating pressure 300 bar

H6506
Type AF 6 EA4X/X…V

Overview of contents Features

Contents Page – 3-way longitudinal valve

Features 1 – For subplate mounting
Ordering details 1 – For threaded connections
Function, section, symbol 2 – Push button operated
Technical data 2
Unit dimensions 3
Installation examples 4
Available seals 4

Ordering details

A F 6 E 4X V *
Isolator valve =A Further details in clear text
Spring return =F V= FKM seals
Nominal size 6 =6 (other seals on request)
Single valve =E Attention!
The compatibility of the seals and pressure fluid
For threaded connections =A has to be taken into account!
For subplate mounting =P
60 = Indication range up to 60 bar
Series 40 to 49 = 4X 100 = Indication range up to 100 bar
(40 to 49: unchanged installation and connection dimensions)
160 = Indication range up to 160 bar
Without accessories =X 250 = Indication range up to 250 bar
With accessories (connection piece, 2 seal rings and pressure gauge) = Y 400 = Indication range up to 400 bar
Complete with accessories (as Y with mounting plate) =Z

Preferred types and standard components are

highlighted in the EPS price list (RDE 00 165).

AF 6 1/4
RE 50 031/02.00

Function, section, symbol

Pressure gauge isolator valves type AF 6 are 3-way longitudinal valves After operation, the spool (2) is pushed back into the initial position
for manual operation. by the pressure spring (3) and thereby unloads the pressure gauge.
They serve to check the prevailing operating pressure from time to The valve is available for subplate or in-line mounting.
time. The pressure gauge can be directly screwed in to the valve housing
The valves basically consist of housing (1), spool (2), pressure spring or fitted separately (see installation examples on page 4).
(3), push button (4) and pressure gauge connection piece (5) it has
two switched positions as well as spring return to the initial position.
In the initial position, flow from P to the pressure gauge via the spool
(2) is blocked and the pressure gauge is connected with T.
When the button (4) is pushed, the spool (2) is moved into the M
switched position, giving free flow from P to the pressure gauge and
the connection to T is blocked. By rotating the push button (4) by 45°
a b
the spool (2) can be locked in place via a detent. T P

M
1 2 5 3 4

T P

Technical data (for applications outside these parameters, please consult us!)
Pressure fluid Mineral oil (HL, HLP) to DIN 51 524;
Fast bio-degradable pressure fluids to
VDMA 24 568 (also see RE 90 221); HETG (rape seed oil);
HEPG (polyglycole); HEES (synthetic ester);
other fluids on request
Pressure fluid temperature range °C – 20 to + 80
Viscosity range mm2/s 2.8 to 500
Degree of contamination Maximum degree of contamination of the pressure fluid is to
NAS 1638 class 9. We, therefore, recommend a filter with a
minimum retention rate of ß10 ≥ 75.
Max. operating pressure – Port P bar 300
– Port T bar 10 (actuation force approx. 10 N)
Pressure gauge indicating range bar Up to 60, up to 100, up to 160, up to 250 and up to 400 (the
indicating range should be approx. 30 % above the max.
operating pressure).

Rexroth Hydraulics 2/4 AF 6

 RE 50 031/02.00

Unit dimensions (Dimensions in mm)

41

5 6

Ø100

Ø116
Ø105
28

~123
1
M6; 9

55 8

G1/4
9
45°

Ø25
55

4
45°

2
3 G1/4
55

G1/4
Ø25
Ø25
17
47

50 Ø25; 0,5
7
7

20

Ø34
20

9 3,5 8 50 G1/4
39 7 66
109

1 Pressure gauge isolator valve 0,01/100mm

2 Pressure port (pump) R max 4
3 Tank port, optional
4 Push button, stroke 5 mm Required surface finish of
5 Glycerine filled pressure guage Ø 100 mm mating piece
6 Mounting plate
7 Panel cut-out
8 3 off Ø 4.8 holes spaced at 120° intervals
9 Tightening torque MA = 60 Nm

AF 6 3/4 Rexroth Hydraulics

RE 50 031/02.00

Installation examples
Separately mounted valve Panel mounting version with Valve for subplate mounting Subplate mounting (piped) with
and pressue gauge mounting plate with pressure gauge 1) pressure gauge and connection
components 1)

Type AF 6 EA4X/X...V Type AF 6 EA4X/Z...V Type AF 6 EP4X/Y...V Type AF 6 EA4X/Y...V

1) 4 off valve fixing screws

M6 x 65 DIN 912-10.9, black, phosphated (oiled),
MA = 15.5 Nm, must be ordered separately.
Ordering details: available seals

Seal kit – Valve

Pos. Seal material Material No.
NBR seals 00313918
113
FKM seals 00313919

113

113

113

Mannesmann Rexroth AG
Mannesmann Rexroth Limited
Rexroth Hydraulics
D-97813 Lohr am Main
Cromwell Road, St Neots,
Jahnstraße 3-5 • D-97816 Lohr am Main
Cambs, PE19 2ES
Telefon 0 93 52 / 18-0 The specified data is for product description
Tel: 0 14 80/22 32 56
Telefax 0 93 52 / 18-23 58 • Telex 6 89 418-0 purposes only and may not be deemed to be
Fax: 0 14 80/21 90 52
eMail product.support@rexroth.de guaranteed unless expressly confirmed in the
E-mail: info@rexroth.co.uk
Internet www.rexroth.com contract.

All rights reserved – Subject to revision 4/4 AF 6