zma-d pneumatic film low temperature regulator     time: 11/10/10 10:05


zma - the d air operated thin film low temperature regulating valve, and bears the low temperature by the air operated diaphragm actuator the single double-seat valve to be composed. it has used in the elongation valve cover, therefore in the valve chest the temperature is very freely low, but its upper extreme's padding was still under the normal temperature to work, this product is suitable under the adjustment - 60~-250℃ low temperature condition the medium (for example liquid oxygen, liquid nitrogen and so on). in order to guarantee the adjustment precision, must use for parts the valve locator.