ASTM A105N Globe Valve

ASTM A105N is a low-carbon steel forging material that complies with the ‌"ASTM A105/A105M Carbon Steel Forgings for Pipeline Components"‌ standard and belongs to the category of special cold forged steel. Its performance is similar to that of domestic 20 steel. Through normalizing treatment (the suffix "N" stands for Normalized), the grain structure is optimized, the mechanical strength and high temperature stability are improved, and it is often used in the manufacture of valves under high pressure and high temperature conditions.

‌Structure and design features‌
‌Valve body process‌:

‌Forging process‌: It adopts integral forging molding, which has higher density, fatigue resistance and high pressure resistance than casting process (suitable for Class 150~3500LB);
‌Bonnet form‌:
‌Bolted bonnet‌: The valve body and bonnet are fixed by bolts, suitable for conventional maintenance scenarios;
‌Welded bonnet‌: Fully welded seal, suitable for high temperature and high pressure or long-term maintenance-free scenarios;
‌Pressure self-tightening bonnet‌: The sealing is enhanced by internal pressure. The higher the pressure, the more reliable the seal.
‌Seal and flow channel optimization‌:

‌Sealing surface treatment‌: Hard seals are made of cladding carbide (such as Stellite) or stainless steel (SS304/316L), which have excellent erosion and corrosion resistance;
‌Flow channel design‌: The straight-through structure reduces fluid resistance, is suitable for small-diameter pipes (DN≤100mm), and has a short opening and closing stroke (the valve disc opening height is 25%~30% of the nominal diameter).

Core performance:

Wide pressure range: supports Class 150~3500LB (corresponding to PN16~PN700), suitable for extreme high-pressure systems;
Temperature adaptability: The operating temperature covers -29℃~570℃, and can be used for high-temperature steam or thermal oil media for a long time.

Application:

Petrochemical: crude oil and natural gas pipeline cutoff and anti-backflow control, resistant to hydrocarbon medium corrosion;

Energy system: thermal power generation, boilers and other high-pressure steam pipelines, matching 3500LB and other high-level requirements;

Industrial media: water, oil, nitric acid and other non-corrosive fluids, need to select corresponding sealing materials

 

ASTM A105N Globe Valve

 

Application
Industrial Application: This valve is widely used in the oil, LNG receiving station, seawater treatment, natural gas and other industries. It is suitable for industrial applications that need to withstand various pressure ratings (such as 150lb, 300lb, 900lb, 1500lb, etc.).

Flow Control: Although the main purpose is to connect or cut off the medium, it can also be used in some flow control scenarios, but it is generally not recommended as the main means of regulating flow.

Customization Options: OEM, ODM and OBM customization support is provided to meet the specific needs of customers.

Special Applications: For example, in industrial sectors such as metallurgy, chemical industry, petroleum refining and pharmaceuticals, A105N forged high temperature and high pressure socket welding steam pressure reducing valve is used for steam-water separation.

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