Product

2507 ball valve

Brand：Pneumatic eccentric butterfly valve 型号：Q41F

2205 ball valve
The following is detailed product information and technical analysis about 2507/2205 duplex steel valves, combined with search results and industry application scenarios:
1、 2507/2205 Dual phase Steel Valve Core Products
Ball valve
Material characteristics: 2507 duplex steel (S32760) combines the advantages of austenite and ferrite, and has better resistance to chloride ion corrosion than 316L. It is suitable for petroleum, chemical, and seawater desalination systems.
Typical model: Top mounted structural design, suitable for high-pressure large-diameter pipelines (such as DN15-DN200).
Globe valve
Sealing performance: The 2205 duplex steel globe valve adopts a reverse flow sealing design (PN ≥ 20MPa), which is resistant to acid, alkali, and chloride corrosion.
Application scenario: Flow control in chemical production, especially suitable for media containing high concentrations of chloride ions.
Gate valve
Structural advantages: The 2507 gate valve has low fluid resistance and is suitable for long-distance oil and gas transmission pipelines. The sealing surface has a long service life.
Check valve thread/flange type: 2205 internal thread check valve (H14W type) resistant to seawater corrosion, pressure range 1.6-10.0MPa; Flange check valve (H44W-16V) is used to prevent medium backflow.
Filter
Applicable medium: 2205 filter can intercept corrosive fluids containing particles, commonly used in chemical pretreatment systems.
2、 Selection suggestions
Oil and gas: Priority should be given to 2507 ball valves or gate valves, which are resistant to chloride ion corrosion and have strong pressure bearing capacity.
Chemical industry: 2205 globe valves are suitable for precise flow control, and check valves need to be matched with the flow direction of the medium.
Seawater environment: The 2507 check valve (H14W type) is resistant to high salt corrosion and has a threaded connection for easy installation.
Molybdenum containing duplex stainless steel exhibits excellent resistance to chloride stress corrosion under low stress. Generally, 18-8 austenitic stainless steel is prone to stress corrosion cracking in neutral chloride solutions above 60 ° C. Heat exchangers, evaporators, and other equipment made with this type of stainless steel in trace chloride and hydrogen sulfide industrial media tend to experience stress corrosion cracking, while duplex stainless steel has good resistance.