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Vacuum safety valve

dd.GIF (58 bytes)FeaturesVacuum safety valve is our newly developed product. The patent No. is 92 2 23398.X. Applicable to the equipment  which bears negative pressure. It can prevent sinking of containers because of negative pressure. This valve can     open automatically and draw in air: when the negative recovers to the regulated value, the valve will close automatically. This valve applies the spring starting structure with recoil plate, which closes quickly and releases in large bulk. Reasonable structural design and the seperation of spring from fluids both avoid corrosion of spring due to touching the fluids. Dirt and rain -proof. Simple installation.
dd.GIF (58 bytes)ApplicationApplicable to containers and equipment with   PN1.02.5MPa,≤200working temperature and the starting pressure of -0.001-0.09MPa. Different materials of valves can be applied to various fluids like air, vapour, oil, nitric acid, acetic acid, oxidation fluid and urea, etc.

YP_10019.jpg (11535 bytes)

dd.GIF (58 bytes)Body materials:WCBCF8CF3CF8MCF3MZG1Cr18Ni9TiZG1Cr18Ni12Mo2TiTi or Ti alloy
dd.GIF (58 bytes)Type of connectionflange
dd.GIF (58 bytes)Model FA72
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dd.GIF (58 bytes)Products category
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Nominal pressure

PN MPa

Nominal diameter DNmm

15

20

25

32

40

50

65

80

100

125

150

200

1.0

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1.6

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2.5

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