安裝說明賀德克單向節(jié)流閥,HJG德國HYDAC節(jié)流閥
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流量閥程序幾乎涵蓋影響液壓所需流量的所有功能。
TEMPERATURE RANGE
zzrelaxation of springs made
valves - 20°C)
zzFPM: from -20°C to +120°C (all other influences see point 4)
6. VISCOSITY
安裝說明賀德克單向節(jié)流閥,HJG德國HYDAC節(jié)流閥
HYDAC valves may be used generally only in specific viscosity ranges, as in
流量閥通過機械或液壓改變節(jié)流閥橫截面來影響系統(tǒng)中的流量。 HYDAC在這一領(lǐng)域提供
手動和液壓控制的閥門。Like the ambient temperature the media temp. range has a direct effe
ct on the used materials in the valve, e.g. their mech. strength. General
ly, the maximum temperature depends primarily on the sealing materials. H
YDAC defines here:
zzNBR: from -30°C to +100°C (solenoid
solenoid valves - 20°C)
zzFPM: from -20°C to +80°C (sometimes up to +100°C)
There are also deep temperature valves (TT), where the seals are specially designed for low temperatures.
Other influences of temperature:
zzbrittle fracture of steel at low temperatures
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