Engineered for precise flow regulation and reliable shut-off in corrosive environments, the BS 1873 Flanged RF Manual CF8 Stainless Steel 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 BS 1873 standards, 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 and a reliable manual handwheel operation, this CF8 globe valve ensures smooth flow control, secure sealing, and seamless integration into critical chemical, petrochemical, and water treatment piping systems.
Key Features & Benefits
· BS 1873 Standard Compliance: Designed and manufactured strictly to BS 1873 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.
· RF Flanged End Connections: Compliant with ASME B16.5 standards, ensuring easy installation, secure sealing with non-metallic gaskets, and leak-proof performance in standard piping systems.
· Manual Handwheel Operation: Features a durable manual handwheel for direct, reliable control without the need for external power, ideal for applications requiring simple and cost-effective operation.
· 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 | BS 1873 |
Body Material | Stainless Steel (ASTM A351 CF8) |
End Connection | Flanged (RF) per ASME B16.5 |
Pressure Rating | Class 150 - 2500 (PN16 - PN420) |
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 |
Testing & Inspection | API 598 / BS 6755 |
Applications
This versatile BS 1873 CF8 manual globe valve is widely deployed in:
· Chemical Processing: Handling corrosive chemicals, weak acids, oxidizing media, and general-purpose fluid distribution.
· Petrochemical Plants: Corrosive fluid isolation and throttling in processing and distribution systems.
· Water & Wastewater Treatment: Seawater, desalination, and corrosive wastewater flow control applications.
· Marine & Offshore: Shipbuilding, offshore platforms, and coastal facilities requiring saltwater corrosion resistance.
· Food & Beverage: High-purity processing lines requiring sanitary and corrosion-resistant materials.
FAQ
Q: What does CF8 mean in stainless steel 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.
Q: Why choose a manual handwheel for a BS 1873 globe valve?
A: Manual handwheel operation provides direct, reliable control without the need for external power sources. It is cost-effective, easy to maintain, and ideal for applications where automated control is not required or where simplicity and reliability are prioritized.
Q: What is the temperature range for a CF8 stainless steel 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.
