The ZAZN electrically operated double seat regulating valve, accepts from regulation meter's direct current signal, changes is moved the medium current capacity, causes to be accused the technological parameter maintains at the given value. Widely applies in Industry sector's and so on electric power, metallurgy, chemical industry, petroleum, light industry, drugs manufacture, papermaking production automation controls.
This serial products nominal size by 20 to 200mm, the nominal pressure has 1.0, 1.6, 4.0, 6.4MPa, the application temperature scope by - 250~450, accepts the signal is 0~10mA.DC or 4~20mA.DC. The electrically operated double seat regulating valve is suitable for the differential pressure big situation. Divides according to the valve contents package material quality also has the metal - metal and the nonmetallic - metal seals two kinds, the latter valve shuts down when the spillage may achieveLevel (zero divulging) standard. Different may divide into the common packing seal and the corrugated pipe according to the padding seals two kinds, the former uses in the general situation, but outside the latter uses in the special occasion which does not allow to leak, discharge characteristic for linearity or and so on percentages. Uses for parts the different implementing agency to be possible to divide into popular and the electron two kinds. Many and varied variety specification may supply the choice.
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