1. Product Overview
Forged steel globe valves are manufactured by hot forging steel billets under high pressure. This process eliminates internal defects in the metal, creating an extremely dense and robust valve body. In the oil and gas industry, they are the number one choice for high-pressure pipelines or central steam systems.
2. Detailed Technical Specifications
| Feature | Technical Details |
|---|
| Body Material | Forged carbon steel (ASTM A105) or forged stainless steel (F304, F316) |
| Pressure Rating | Class 800 (138 bar), Class 1500, Class 2500 |
| Size | Mainly DN15 (1/2″) to DN50 (2″) |
| Connection Types | Threaded (NPT/BSPT) or socket weld |
| Disc Material | Hard alloy steel, often Stellite-coated (Trim 8) |
| Bonnet Type | Bolted bonnet or welded bonnet |
3. Construction and Key Features
- Extreme pressure resistance: With Class 800 rating, the valve can withstand 5–10 times the pressure of conventional cast valves.
- Z-shaped flow path: The disc presses tightly against the seat, ensuring zero leakage when fully closed.
- Precise flow regulation: Ideal for throttling; can be partially opened to finely control fuel/chemical flow without damaging the disc.
- Anti-blowout stem: Special design prevents the stem from being ejected under sudden pressure surges, ensuring operator safety.
4. Why Customers Should Use Forged Steel Globe Valves
- Maximum safety: In explosive environments, forged steel prevents cracking or rupture common in cast iron or low-quality cast steel valves.
- Superior durability: Forged A105 steel resists corrosion and thermal shock, ensuring long service life.
- Absolute sealing: Graphite gland packing withstands high temperatures, preventing fuel vapors from escaping through the stem.
5. Typical Applications
- Oil & Gas industry: Installed in high-pressure fuel pipelines and metering skids.
- Steam systems: Used as main shut-off valves for industrial boilers.
- Chemical plants: For transporting highly permeable and high-pressure liquids.
- Firefighting systems: Applied in high-pressure pump assemblies.
FORGED STEEL BLOCK VALVE
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