Specification:
This type valve is an swing type (Flapper type) non return valve. The valve body and disc is lined with rubber or fluoroplastics. So it has wide temperature and pressure range. The valve has wide material selections, complete specifications and is the ideal valves for carrying water, petroleum petrochemical, chemicals, raw oil and natural gas , etc.
Nominal diameter: DN15~300mm,1/2"~12"
Nominal pressure: PN0.6~4.0MPa,Class150
Type of connection: Flanged Ends
Applicable media: water, vitriol hydrofluoric acid phosphoric acid gaseous chlorine strong alkali aqua regia and so on medium with strong causticity.

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