A890 Gr 4A Duplex Stainless Steel Ball Valve

A890 Gr 4A Duplex Stainless Steel Ball Valve introduction
A890 Gr 4A Duplex Stainless Steel Ball Valve is full or reduced bore design with 2PC or 3PC body for floating or trunnion mounted structure, A890 Gr 4A Duplex Stainless Steel Ball Valve have excellent resistance to point, crack and uniform corrosion, and are highly resistant to stress corrosion cracking.A890 Gr 4A Duplex Stainless Steel Ball Valve is used in water treatment, seawater desalination, chemical and other places where corrosion resistance is required.

A890 Gr 4A Duplex Stainless Steel Ball Valve specification
Pressure Class: PN1.6-42.0 MPA CLASS150-2500LB
Nominal size: DN15-DN600 1/2"-24"
Driving mode: handle, worm gear, pneumatic, hydraulic, electric
Applicable medium: oxidizing corrosive medium.
A890 Gr 4A Duplex Stainless Steel Ball Valve technical specification:
Design standard: GB/T12237, API6D, ASME B16.34
Structure length: GB/T12221, API6D, ASME B16.10
Flanges: HG, GB, JB, API, ANSI, ISO, BS, DIN, NF, JIS
Test standard: JB/T9092, GB/T13927, API6D, API598
 
A890 Gr 4A Duplex Stainless Steel Ball Valve material feature
Compared with austenitic stainless steel, A890 Gr 4A Duplex Stainless Steel Ball Valve strength is higher and its resistance to intercrystalline corrosion and chloride stress corrosion is improved obviously.A890 Gr 4A Duplex Stainless Steel Ball Valve has excellent corrosion resistance and is also a kind of nickel stainless steel.
In corrosion resistance, especially the medium environment is more harsh (such as seawater, chloride ion content is higher) under the conditions, A890 Gr 4A Duplex Stainless Steel Ball Valve resistance pitting corrosion, crevice corrosion, stress corrosion and corrosion fatigue performance is obviously better than ordinary austenitic stainless steel, can be comparable with high alloy austenitic stainless steel.


Our product range:
Shanghai Huixuan is ball valve factory, China Ball valve manufacturer mainly produce pneumatic ball valve,electric ball valve,floating ball valve,trunnion ball valve,segmented ball valve,high pressure ball valve,cryogenic ball valve,3 way ball valve,PTFE lined ball valve,ceramic ball valve,DBB ball valve,cast steel ball valve,stainless steel ball valve,forged steel ball valve,fully welded ball valve, top entry ball valve,italy water ball valve,direct mount ball valve,plastic ball valve and other ball valves.