Pressure relief valve | DBD 5/12
RD 25710, edition: 2016-07, Bosch Rexroth AG
Characteristic curves
(measured with HLP46, ϑ
oil
= 40 ±5 °C)
Set pressure in bar →
Flow in l/min →
Pressure differential in bar →
Flow in l/min →
p
E
-q
V
characteristic curve ∆p-q
V
characteristic curve
Notes:
The characteristic curves apply to output pressure = zero in the
entire volume flow range and were measured without housing
resistance.
Hydraulic counter pressures in the main port ② (T) add
1:1 to the response pressure of the valve set at the
adjustment.
Example:
▶ Pressure adjustment of the valve due to spring preload
(item 4 on page 3) p
spring
= 200 bar
▶ Hydraulic counter pressure in the main port ② (T):
p
hydraulic
= 50 bar
⇒ Response pressure = p
spring
+ p
hydraulic
= 250 bar
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