Re 25402
Re 25402
Re 25402
97
RE 25 402/03.98
Replaces: 08.97
Nominal sizes 6 to 30
Series 1X
Maximum operating pressure 630 bar
Maximum flow 330 L/min
H/A 5585/96•
Type DBD…1X/…
Contents Features
Ordering details
DBD 1X *
Pressure relief valve, direct operated
Adjustment element Nominal size
6 8 10 15 20 25 30
Grub screw with hexagon =S
and protective cap
Rotary knob 1) – – =H
2)
Hand wheel – – – – – =H
1, 3)
Lockable rotary knob – – =A
1) With sizes 15 and 20 only available for pressure stages 25, 50 or 100 bar.
2) Only available for pressure stages 25, 50 or 100 bar.
3) Key with Material no. 00008158 is included within the scope of supply.
Nominal size = 6 = 8 = 10 = 15 = 20 = 25 = 30 e. g.
(connection) G1/4 G3/8 G1/2 G3/4 G1 G1 1/4 G1 1/2 = 10
Type of connection
As cartridge valve (cartridge) – – – =K
For threaded connections =G
For manifold mounting – – – =P
Series 10 to 19 = 1X
(10 to 19: unchanged installation and connection dimensions)
Pressure stage
Pressure setting up to 25 bar = 25
Pressure setting up to 50 bar = 50
Pressure setting up to 100 bar = 100
Pressure setting up to 200 bar = 200
Pressure setting up to 315 bar = 315
Pressure setting up to 400 bar – – = 400
Pressure setting up to 630 bar – – – – – – = 630
NBR seals = No code
FPM seals =V
(other seals on request)
Attention!
The compatibility of the seals and pressure fluid has to be taken into account!
Further details in clear text
= available
The DBD pressure relief valves are direct operated poppet valves. If the pressure in channel P rises above the value set at the spring
They are used to limit the pressure in a hydraulic system. (2), the poppet (3) or ball (4) opens against the spring (2). Now
pressure fluid flows form channel P into channel T. The stroke of the
The valves mainly consist of sleeve (1), spring (2), poppet with damping
poppet (3) is limited by a pin (6).
spool (3) (pressure stages 25 to 400 bar) or ball (4) (pressure stage
630 bar) and adjustment element (5). The setting of the system In order to maintain a good pressure settings over the entire pressure
pressure is infinitely variable via the adjustment element (5). The spring range the pressure range is split into 7 pressure stages. One pressure
(2) pushes the poppet (3) onto the seat. The P channel is connected stage corresponds to a certain spring for a maximum operating
to the system. The pressure present in the system is applied to the pressure which may be set with it.
poppet area (or ball).
T T
P P
P P
T T
5 1 2 3 6 4
Type DBDH..K 1X/… Type DBDH 10 K1X/…
Pressure stage 25 to 400 bar (poppet seat valve) Pressure stage 630 bar
(ball seat valve, only size 10)
P
Symbol
Technical data (for applications outside these parameters, please consult us!)
Pressure fluid Mineral oil (HL, HLP) to DIN 51 524 1) ;
Fast bio-degradable pressure fluids to
VDMA 24 568 (also see RE 90 221); HETG (rape seed oil) 1);
HEPG (Polyglycol) 2); HEES (synthetic ester) 2);
other fluids on request
Pressure fluid temperature range °C – 30 to + 80 (for NBR seals)
– 20 bis + 80 (for FPM seals)
Degree of contamination Maximum permissible degree of contamination of the fluid is to
NAS 1638 class 9. We, therefore, recommend a filter with a
rentention rate of ß10 ≥ 75
Viscosity range: mm2/s 10 to 800
Operating pressure range: Sizes 6 and 8 Size 10 Sizes15 and 20 Sizes 25 and 30
Input bar up to 400 up to 630 up to 400 up to 315
Output bar 315 315 315 315
1) Suitable for NBR and FPM seals
2) Only suitable for FPM seals
200 200
100 100
50 50
1 1
0 10 20 30 40 50 0 20 40 60 80 100 120
Flow in L/min → Flow in L/min →
1 lowest settable pressure
300
200
200
100
100
50
50
Attention! Attention!
The characteristic curves are valid for the output pressure The characteristic curves refer to the given pressure stages
= zero in the complete flow range and are measured (e. g. 200 bar). The further the pressure setting value exceeds
without consideration of the housing pressure drop! the nominal presure stage (e. g. < 200 bar), the greater the
pressure increase with the flow.
ØD1 D2 B1
4
(P)
H1
H2
T P
L1 L2
D4; T1
L3 L4
1.1
L5 ØD3
2 3
P
(P)
B1
B2
L6
T
1.1 Adjustment element „S“ Types and dimensions of setting elements see page 7.
grub screw for pressure setting and protective cap
internal hexagon (up to size 20)
external hexagon (sizes 25, 30)
2 Name plete
3 4 valve fixing holes
4 Connection port P, optional (e.g. for pressure measuring)
for dimensions see dimension D2
H3
H2
(P)
T P ØD8; T2 D9; T3
L7
L1 L2 L9
1.1 L8 L10 L11
L3 L4 ØD3 L12 L12
12
13
T P 14 T P
B3
(P)
B4
3
B1
B2
R1
L13
L6 L14 ØD5
L15
L5 2 4 L16 D7; T5 ØD6; T4
0,01/100mm
R max 4 Required surface finish of mating Types and dimensions of adjustment elements see page 7.
piece
1.1 Adjustment element „S“ 4 Connection port P, optional
Valve fixing screws MA
grub screw for pressure (e.g. for pressure
(must be ordered separately) in Nm
setting and protective cap measuring)
Size 6 M6 x 50 DIN 912–10.9 approx. 15.5 internal hexagon (up to size 20) 12 Sub-plate type code see
external hexagon (size 25, 30) below
Size 10 M8 x 70 DIN 912–10.9 approx. 37
2 Name plate 13 Valve contact area
Size 20 M8 x 90 DIN 912–10.9 approx. 37
3 4 valve fixing holes 14 Panel cut-out
Size 30 M10 x 110 DIN 912–10.9 approx. 75
Sub-plate
Size Type B3 B4 ØD5 ØD6 D7 ØD8 D9 ØD10 H3
6 G 300/01 45 60 7 11 M6 25 G 1/4 6 25
10 (G 301/01) G 302/01 60 80 7 11 M8 (28) 34 (G 3/8) G 1/2 10 25
20 (G 303/01) G 304/01 70 100 11.5 17.5 M8 (42) 47 (G 3/4) G 1 (15) 20 40
30 (G 305/01) G 306/01 100 130 11.5 17.5 M10 (56) 61 (G 1 1/4) G 1 1/2 30 40
Sub-plate
Size L7 L8 L9 L10 L11 L12 L13 L14 L15 L16 T2 T3 T4 T5 R1 Weight
6 110 8 94 22 55 10 39 42 62 65 1 15 9 15 25 +2 1.5 kg
10 135 10 115 27.5 70 12.5 40.5 48.5 72.5 80.5 1 (15) 16 9 15 30 +5 2 kg
20 170 15 140 20 100 20 (45) 42 54 85 (94) 97 1 20 13 (12) 22 40 +3 5.5 kg
30 190 12.5 165 17.5 130 22.5 42 52.5 102.5 (113) 117 1 24 11.5 22 55 +4 8 kg
α1
ØD15
ØD17
ØD18
ØD11
ØD13
D14
Rz 16
L17 L24
A
0,05 A
A
L25 0,5 x 45°
L26
0,1
L22 L23
Rz 16
A/F
SW55 A/F
SW33 A/F
SW22 A/F 1 MA
SW1; L27
L29
Ø 2,5 L30
1.1 L31
ØD11
Cartridge valve
Size ØD11 ØD12 ØD13 L17 L18 L19 L20 L21 L22 L23 L24 A/F1 MA, approx. A/F2 A/F3 A/F4 A/F5 A/F6 Weight
6 34 60 – 72 11 83 28 20 – – 64.5 32 80 Nm 30 19 6 – 30 approx.0.4 kg
10 38 60 – 68 11 79 28 20 – – 77 36 140 Nm 30 19 6 – 30 approx. 0.5 kg
20 48 60 – 65 11 77 28 20 – – 106 46 170 Nm 36 19 6 – 30 approx. 1 kg
30 63 – 80 83 – – – – 11 56 131 60 200 Nm 46 19 – 13 – approx. 2.2 kg
Installation cavity
Size D14 ØD15 ØD16 ØD17 ØD18 ØD19 L25 L26 L27 L28 L29 L30 L31 α1
6 M28 x 1.5 25H9 6 15 24.9 6 15 19 30 35 45 56.5±5.5 65 15°
10 M35 x 1.5 32H9 10 18.5 31.9 10 18 23 35 41 52 67.5±7.5 80 15°
20 M45 x 1.5 40H9 20 24 39.9 20 21 27 45 54 70 91.5±8.5 110 20°
30 M60 x 2 55H9 30 38.75 54.9 30 23 29 45 60 84 113.5±11.5 140 20°
200 200
100 100
80 Values which are below 80 Values which are below
60 the characteristic curve 60 the characteristic curve
50 in the dark area cannot 50 in the dark area cannot
be achieved with this 40 be achieved with this
40
valve valve
30 30
0 12 20 28 36 44 52 0 20 40 60 80 100 120
Flow in L/min → Flow in L/min →
400 400
300 300
size 20 size 30
Operating pressure in bar →
100 100
80 80
Values which are below Values which are below
60 the characteristic curve 60 the characteristic curve
50 in the dark area cannot 50 in the dark area cannot
40 be achieved with this 40 be achieved with this
valve valve
30 30
0 30 60 90 120 150 180 0 60 120 180 240 300 360
Flow in L/min → Flow in L/min →
The ordering code of a design tested pressure relief valve consists of description and component code.