Functional
Pressure relief valve type Z2DBD6 is pilot operated and is of sandwich plate design.
They are used to limit the pressure within a hydraulic system.
They basically consist of the housing (1), together with two pressure relief valve cartridges.
The system pressure is set by means of adjustment element (7).
At rest, the valve is closed. Pressure in port A (or B) acts on the spool (3).
If the pressure in port A rises above the pressure set on spring (6), the spool (3) opens, fluid can now flows from
a channel into port T.
Similarly,the mode is apply to port B.
Z2DB6VD-2-40B/100.
Z2DB6VD-2-40B/100V.
Z2DB6VD-2-40B/200.
Z2DB6VD-2-40B/200V.
Z2DB6VD-2-40B/315.
Z2DB6VD-2-40B/315V.
Z2DB6VD-2-40B/50.
Z2DB6VD-2-40B/A50B315.
Pressure fluid |
Mineral oil (for NBR seal),or phosphate ester (for FPM seal) |
Pressure fluid - temperature range (ºC) |
-30~+80 |
Viscosity range (mm/s) |
10~800 |
Degree of fluid contamination |
Maximum permissible degree of contamination of the fluid is to NAS 1638, class 9.β10≥75 |
Operating pressure,max. (MPa) |
up to 31.5 |
Pressure adjustable, max. setting (MPa) |
up to 5, to 10,to 20,to 31.5 |
Flow, max. (L/min) |
up to 60 |
Weight |
Type ZDB 6 (Kg) |
approx.1 |
Type Z2DB 6 (Kg) |
approx. 1.2 |