BC479366929428en-000101
1DR30
Relief valve, Direct Acting, Poppet Type
400 bar [5800 psi] • 30 l/min [8 US gpm]
DESCRIPTION AND OPERATION
This is a direct acting, poppet type relief valve that relieves from port 1 to
2. It can be used as a cost-effective main relief or to protect an actuator
from over-pressurization.
SCHEMATIC
PERFORMANCE DATA
Rated pressure 400 bar [5800 psi]
Rated ow 30 l/min [8 US gpm]
Leakage 0.3 ml/min nominal [5 drops/min]
Weight 0.17 kg [0.37 lb]
Cavity SDC08-2
PERFORMANCE CURVES
Pressure Override
DIMENSIONS
mm [in]
Installation torque
A - 47-54 Nm [35-40 ft. lbs]
S - 68-75 Nm [50-55 ft. lbs]
Relief Valves
Flow - L/min
5800
5075
4350
3625
2900
2175
1450
725
0
400
350
300
250
200
150
100
50
0
0 2.6 5.2 7.8 10.4 13
0 10 20 30 40 50
Flow - US gpm
Pressure - bar
Pressure - psi
MODEL CODE
1DR30 - P - 3W - 40 - S - 377 - 60
Seal Option
Code Seal Kit
S-Nitrile SK243
SV-Viton® SK243V
Housing
Code Ports Housing Model Code
Aluminum Steel
Omit No Housing
2W 1/4” BSP A1485
3W 3/8” BSP A1043 A14175
6T 3/8” SAE A15676 A14843
* Aluminum bodies are to be used for pressures less than 210 bar [3000 psi].
* Additional housings available
70.0
(2.76)
max
(40S)
52.0
(2.05)
max
(10S/20S)
26.2
(1.03)
3/4-16 UNF
25.4 A/F
17.0 A/F
Hex socket adjust
4.0 A/F
Tank (2)
Pressure (1)
Adjustment Option
P - External
R - Knob
G - Tamper resistant
Basic Code
1DR30 - No Housing
1DR35 - Cartridge and housing
1
2
Housing Material
Omit - Aluminum/No housing
377 - Steel
Pressure Range
Code Bar Psi
10
Standard Setting
7-100
70
[100-1450]
[1015]
20
Standard Setting
35-210
100
[500-3000]
[1450]
40
Standard Setting
50-400
280
[725-5800]
[4060]
Pressure setting made at 4.8 l/min
Pressure Setting
Code- Pressure setting in bar
(5 bar increments within specified
Pressure Range)
XXX-Standard setting
(see Pressure Range for value)
Example:
Code Bar Psi
60 60 [870]
Same as 1DR2
