Engineered for precise flow regulation and reliable shut-off in high-pressure corrosive environments, the Class 900 API Stainless Steel CF8 High Pressure Globe Valve delivers exceptional performance and durability.
Manufactured from high-quality ASTM A351 CF8 stainless steel (cast equivalent of 304), this valve offers outstanding resistance to general corrosion, oxidation, and a wide range of chemical media. Designed strictly to API standards and compatible with ASME B16.5 flange dimensions, it features a robust bolted bonnet construction and a plug-shaped disc that moves linearly along the valve seat centerline. Equipped with standard Raised Face (RF) flanged connections, this CF8 globe valve ensures smooth flow control, reliable sealing, and seamless integration into critical chemical, petrochemical, and water treatment piping systems under Class 900 pressure conditions.
Key Features & Benefits
· API Standard Compliance: Designed and manufactured strictly to API specifications, ensuring dimensional compatibility, structural safety, and reliable performance in global industrial infrastructure.
· CF8 Stainless Steel Construction: Crafted from premium ASTM A351 CF8 cast stainless steel, providing superior general corrosion resistance, oxidation resistance, and durability in demanding chemical and marine environments.
· Precise Throttling & Shut-off: The plug-shaped disc moves linearly along the valve seat, with the port change directly proportional to the disc stroke, making it ideal for both precise flow regulation and reliable isolation in high-pressure systems.
· Class 900 High Pressure Rating: Engineered with heavy-duty wall thickness and high-strength CF8 material to withstand extreme pressure surges and thermal cycling without deformation or failure.
· RF Flanged End Connections: Compliant with ASME B16.5 standards, ensuring easy installation, secure sealing with non-metallic gaskets, and leak-proof performance in Class 900 piping systems.
· OS&Y Rising Stem Mechanism: Features an Outside Screw and Yoke design with a non-rotating rising stem, providing a clear visual indication of valve position and protecting stem threads from corrosive media exposure.
Technical Specifications
Parameter | Specification |
Valve Type | Flanged Globe Valve |
Design Standard | API 623, ASME B16.34 |
Body Material | Stainless Steel (ASTM A351 CF8) |
End Connection | Flanged (RF) per ASME B16.5 |
Pressure Rating | Class 900 (PN150) |
Size Range | 1/2" - 24" (DN15 - DN600) |
Temperature Range | -196°C to +425°C |
Trim Material | CF8, 304/316 SS, or Stellite Hard-Faced |
Operation | Manual Handwheel / Gear / Electric / Pneumatic |
Testing & Inspection | API 598 |
Applications
This versatile Class 900 CF8 stainless steel globe valve is widely deployed in:
· Chemical Processing: Handling corrosive chemicals, weak acids, oxidizing media, and general-purpose fluid distribution under high pressure.
· Petrochemical Plants: Corrosive fluid isolation and throttling in processing and distribution systems requiring high-pressure performance.
· Water & Wastewater Treatment: Seawater, desalination, and corrosive wastewater flow control applications under elevated pressure.
· Marine & Offshore: Shipbuilding, offshore platforms, and coastal facilities requiring saltwater corrosion resistance and high-pressure reliability.
· Food & Beverage: High-purity processing lines requiring sanitary, corrosion-resistant materials and precise flow control.
FAQ
Q: What does CF8 mean in high pressure globe valves?
A: CF8 is the ASTM A351 standard casting grade for 304 stainless steel. It offers excellent general corrosion resistance, good formability, and high-temperature strength, making it ideal for chemical processing, water treatment, and food industries under high-pressure conditions.
Q: Why choose API standard for CF8 globe valves?
A: API standards specify strict requirements for design, materials, dimensions, and testing, ensuring the valve meets the rigorous demands of the petroleum, petrochemical, and allied industries. API-compliant CF8 valves guarantee structural safety and reliable performance in high-pressure corrosive environments.
Q: What is the temperature range for a Class 900 CF8 globe valve?
A: A CF8 (ASTM A351) stainless steel globe valve can typically handle temperatures from -196°C (cryogenic) up to +425°C. For continuous high-temperature service above 200°C, material strength and pressure ratings may need to be derated according to ASME B16.34 standards.
