RZMO-TERS Hydraulic Proportional valve AERS pressure 315bar Flow 4L/min
RZMO are poppet type hydraulic proportional
pressure relief valves, direct operated with
integral or remote pressure transducer,
which provide pressure regulation
proportional to electronic reference signals.
They operate in association with electronic
drivers, see section , which supply the
proportional valve with proper current to
align valve regulation to the reference signal
supplied to the electronic driver.
HYDRAULIC CHARACTERISTICS( based on mineral oil ISO VG 46 at 50’c )
|
Hydraulic symbols Valve model |
RZMO-TERS-033 RZMO-AERS |
||||
| Max regulated pressure (Q=1 l/min)[bar] | 100 | 210 | 315 | 350 | |
| Max regulated pressure(Q=1 l/min) [bar] | 1,8 | 2,5 | 3,5 | 3 | |
| Max pressure at port P [bar] | 350 | ||||
| Max.pressure at port T [bar] | 210 | ||||
| Maximum flow [l/min] | 4 | ||||
|
Response time 0-100% step signal [ms] (depending on installation) |
<55 | ||||
| Hysteresis [% of the max pressure] | < 0,3 | ||||
| Linearity [% of the max pressure] | < 1,0 | ||||
| Repeatability [% of the max pressure] | < 0,2 | ||||
| Thermal drift | Zero point displacement<1% at T=40 °C | ||||
Main Characteristics of Proportional relief valves
| Assembly positon | Any position |
| Subplate surface finishing | Roughness index, Ra 0,4 flatness ratio 0,01/100(ISO1101) |
| Ambient temperature | -20°C÷+50°C for -TERS and -AERS executions |
| Fluid | Hydraulic oil as per DIN51524...535 for other fluids see section 1 |
| Recommended viscosity | 15÷100 m/s at 40°C(ISO VG15÷100) |
| Fluid contamination class | ISO4406 class 20/18/15 NAS1638 class9, in line filters of 10 µm(B10>75 recommended) |
| Fluid temperature | -20°C+60°C(stand seals) -20°C+80°C(/PE seals) |
| Coil resistance R at 20°C | 3÷3.3 |
| Max solenoid current | 2.6A |
| Max power | 40 Watt |
| Protection degree (CEI EN-60529) | IP67 |
| Duty factor | Continuous rating(ED=100%) |
