ASTM A351 CF8M Ball Valves, API 6D, 8*6 IN, CL300, Hard Seal

The ASTM A351 CF8M Ball Valves are manufactured to the API 6D standard, featuring a robust metal-seated/hard seal design. These valves have a body made from ASTM A351 CF8M stainless steel, offering excellent corrosion resistance and mechanical strength. They are available in an 8 x 6-inch size, with nominal diameters of DN200 and DN150, and are rated for Class 300 LB pressure, equivalent to PN50. The valves come with RF flanged ends for secure connections.

Product Name: ASTM A351 CF8M Ball Valve, Metal Seated/Hard Seal, Reduced Bore
Design Standard: API 6D
Body Material: ASTM A351 CF8M
Size: 8 * 6 Inch, DN200*DN150
Pressure: Class 300 LB, PN50
End Connection: RF
Operation: Gearbox

The Metal-Seated Ball Valve employs a metal-to-metal sealing mode for both the ball and seat, ensuring durability and performance under demanding conditions. Depending on the service requirements, various advanced hardening technologies can be applied to the ball and seat, including HVOF coating, nickel-base alloy spray welding, high-nickel alloy spray welding, tungsten carbide alloy spray welding, and cobalt-base hard alloy spray welding. These materials offer exceptional heat resistance, with sealing face temperatures ranging from 540°C to 600°C, and can withstand maximum temperatures of up to 980°C.
The sealing face material is wear-resistant and impact-resistant, providing long-lasting performance. The seat is made of stainless steel with stellite alloy pile-up welding, while the ball is crafted from stainless steel and undergoes surface treatments such as hard chrome plating, vacuum coating, and tungsten-titanium alloy or stellite alloy pile-up welding to meet heat- and wear-resistant requirements.
Our innovative ball manufacturing process allows for high-precision and super mirror surface processing. Additionally, the spring-preloaded seat ensures absolute sealing reliability and stable operating torque. This design guarantees the valve’s safety, sealing reliability, and smooth operation, offering enhanced flexibility and convenience.

Technical Specification

» Size Range: NPS 2-36 Inch (DN50–DN900)
» Design Pressure: Class 150–900 LB (PN10–PN160)
» Material: ASTM A105N, A350 LF2, A182 F304, F304L, F316, F316L, F51, etc.
» End Connections: RF, RTJ, BW
» Trim Materials: 13%Cr, SS 304, SS 304L, SS 316, SS 316L, and other Specials
» Operation: Handle, worm gear, electric, pneumatic
» Design and Manufacture: API 6D, BS 5351, ASME B16.34
» Face to Face (End to End): ASME B16.10
» Flanged Connection: ASME B16.5, ASME B16.47
» Test and Inspection: API 598, API 6D
» Butt Welded End: ASME B16.25
» Fire Safety: API 607, API 6A
» Temperature Range: -29°C to 300°C
» Medium: Water, gas, oil, etc.

Product Features

» Advanced Ball and Seat Hardening Technology for Enhanced Durability
» Flexible Valve Opening and Closing for Efficient Operation
» Fireproof Structure Design for Enhanced Safety
» Double Block and Bleed (Metal-Seated Trunnion Ball Valve) for Double Isolation
» Reliable Sealing Performance for Long-Term Reliability
» Blow-Out Proof Stem for Added Safety
» Corrosion and Sulfide Stress Resistance for Harsh Environments
» Optional Locking Device or Stem Extension for Customization
» Optional Direct Mounting to ISO 5211 for Easy Installation
» Full Port or Reduced Bore Options for Versatile Flow Control