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1.Attached with steam or air heat preservation mechanism and uneffected by the environmental hunidity ;with operation frequency decreased and service life prolonged .

2.Provided with filter screen and drainage va e.

3.The va e runs flexibly and relibly with large displacement.

Working principle:

 By taking advantage of themodynamics characteristics , secondary evaporation will arise when the condensate water is discharged to the lower pressure  zone and meanwhile when the viscosity and density of steam differ, the drain va e will open or close.

Main function:

 The va e is applicable in the steam pipeline and equipment to avoid steam leakage and eliminate steam leakage in order to conserve energy and keep from water hammer and other faults.