德國賀德克流量控制閥主要應(yīng)用,0240R10BN/HC
上海乾拓貿(mào)易有限公司
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could be used in hydraulics.
and hydraulically controlled valves in this area.
In general there are different conditions
Other influences of temperature:
z brittle fracture of steel at low
temperatures
z relaxation of springs made of spring
the maximum temperature depends
primarily on the sealing materials.
HYDAC defines here:
z NBR: from -30°C to +60°C
(solenoid valves - 20°C)
6. Viscosity of the fluid
7. Contamination level (filtration) of the
operating fluid
8. Nominal current and voltage
(proportional and solenoid operated
existing under which HYDAC valves
steel at higher temperatures
z fusing of coils at continous operation
under high current and at high
temperatures
The flow valve programme encompasses practically all of the functions
for influencing the flow rate which are required in hydraulics.
corresponding valve and described on
the depending datasheet in detail.
These conditions are:
1. Pressure
(sometimes up to +100°C)
There are also deep temperature valves
(TT), where the seals are specially
designed for low temperatures.
z FPM: from -20°C to +80°C
Flow valves influence the flow rate in a system by means of mechanical
or hydraulic modification of throttle cross-sections. HYDAC offers both manually
5. Media operating temperature range
valves)
9. MTTFd values
The ambient temperature has a direct
effect on the used materials in the valve,
e.g. their mech. strength. Generally,
2. Flow rate
3. Type of hydraulic fluid
4. Ambient temperature range
These conditions are depending on the
德國賀德克流量控制閥主要應(yīng)用,0240R10BN/HC
021-39526589
網(wǎng)址:m.medieval.com.cn
地 址:上海市嘉定區(qū)嘉涌路99弄
6號樓713室