FLOWSPEC HH44X micro-resistance slow close check valve is applicable to water supply and drainage pipeline, which is mounted on the pump outlet to prevent of backflow and water hammer, and it reduce effectively water hammer pressure when closing valve to protect the pipeline to run safely. HH44X micro-resistance slow close check valve has many advantages, such like light disc, big open, power saving, small fluid resistance, new water hammer eliminator design, good sealing, wear-resisting, long service life, smooth operation, no vibration or noise.
Technical Specifications
Nominal pressure: 10bar/16bar/25bar/class125/class150/class250
Nominal size: DN40 (1-1/2”) ~ DN800 (32”)
Design & manufacturing: FS-2000
Face to face: GB/T 12221
Flanged ends: GB/T 17241.6, GB/T9113, ANSI B16.1, ANSI B16.5, DIN2501, BS4504, EN1092-2
Inspection & test: GB/T13927, API598
Applicable medium: water, weak corrosive liquids
Applicable temperature: 0~80℃
Materials: cast iron, ductile iron, cast steel