ASTM A351 CF8M Ball Valve, 8 x 6 Inch, CL 300 LB, API 6D, RF

Key Specifications / Features

Model No.: JSC-240409-MSBV-01

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Explore our top-quality ASTM A351 CF8M ball valve, meticulously crafted to adhere to API 6D standards, ensuring reliable performance in diverse industrial applications. With a size of 8 x 6 inches, this valve operates efficiently under Class 300 LB pressure conditions, making it suitable for various medium to high-pressure environments. It features a robust metal seat design and comes in a three-piece construction with a bolted bonnet, guaranteeing durability and ease of maintenance for long-term use.
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Detail Information

Metal Seated Trunnion Ball Valve

Valve description: Ball valve, Metal seat, bolted bonnet, three pieces, carbon steel

Body material: ASTM A351 CF8M
Nominal diameter: 8 Inch x 6 Inch
Nominal class: Class 300 LB (PN50)
End connection: RF
Standard: API 6D
Face to face: ASME B16.10
Test and inspection: API 598
Mode of operation: Gear operation
Metal seat: Chromium Carbide, Tungsten Carbide or Stellite

Metal Seated Ball Valve is manufactured for high temperature up to 540℃ (may be higher based on the material of body and trim) or abrasion resistance. Metal Seated Ball Valves are Zero leakage (bubble tight seal). Metal Seated Ball Valve is also called metal to metal ball valve, as the seat and ball are made from metal.
For metal seated ball valve, the seat ring and ball are precisely machined, coated by high velocity oxygen fuel(HVOF) coating process and lapped to match ball, creating a positive seal for bubble-tight performance. Metal seated trunnion ball valves have many advantages such as excellent corrosion & wear resistance, tight shut-off, smooth control, low torque, wide temperature & pressure range, as well as stability under pressure. Metal seated ball valve provide long service life with outstanding fugitive emissions performance and low operating torques in even the toughest applications.

Zero Leak Metal Seated Ball Valve

The sealing between the seat and body is O-ring. It is designed for temperature below 150˚C and zero leakage warrenty. This design is for gas comprssion project ect.

Leakage Rate

Zero leakage available (MUCH higher level than ANSI/FCI 70-2 Class V shut-off, Class VI).

Types: Metal seated trunnion ball valves and metal seated floating ball valves.

Metal Seated Trunnion Mounted Ball Valves are split-body,  trunnion-mounted ball valve with spring-loaded seats with cavity relief,  they are double block-and-bleed capability.
Metal seated floating ball valve is with Zero leakage for hightemperature operating conditions. Furthermore, seats with hard surface materials in Chromium Carbide, Tungsten Carbide or Stellite are also available. All floating ball valve are Antistatic Design and Automatic Body Cavity Relief.
Metal seated floating ball valve series includes a specific model for highly abrasive catalyst services or with the presence of solids, called SAT3.

Features & Benefits

a) Unique, the metal seated ball valve with patented single-seat ball valve design. It has a flat spring set acting through a hard-faced bearing against the bottom ball shaft which provides sufficient initial ball-seat load for valve tightness, even at low delta P.
b) Metal seated ball valve proven in qualification tests and field operation to be solids–proof, even for the toughest applications on slurry service with solids particles.
c) Tightness rates: Allowable leakage rate at full Delta P: ASME/ FCI 70-2 Class VI/V. Tighter shutoff available upon request. The leakage rate also can be customization from end-user request
d) The metal seated ball valve with standard extension bonnet/stem, whose design base on the different temperature range.
e) Uni-directional or bi-directional sealing

To ensure product reliability, our ball valve designs are validated by actual prototype testing that includes a high cycle testing. The valves are produced by employing state-of-the-art manufacturing technology and under strict quality control standards.

Product Range

Size Range: 2 Inch - 36 Inch (DN50-DN900)
Pressure Range: Class 150 LB - 1500LB (PN16-PN250)
Design / Manufacture: API 6D, ASME B16.34, DIN 3357, EN 13709, GB/T 12237, BS 5351, ISO 14313
Face to Face Length (Dimension): MFG, API 6D, ASME B16.10, EN 558-1, DIN 3202, JIS B 2002
Flanged Dimension: ASME B16.5, EN 1092-1, BS 4504, DIN 2501
Flanged to ASME B16.5 (2 Inch - 24 Inch) and ASME B16.47 Series A / B (26 Inch and above) Clamp / Hub ends on request.
Testing: API 598, API 6D, EN 12266-1, EN 1074-1, ISO 5208


Bi-directional metal seat design
Standard SPE (Single Piston Effect) metal seat design with self-relieving features
DPE (Double Piston Effect) metal seat design is available
Metal seat hard face coatings are available in Stellite, Tungsten Carbide or Chrome Carbide, Spray Ni60 Ni55 Options
Standard metal seat leakage rating is in compliance with ANSI/FCI-70-2 Class V for Stellite seats. Class VI is standard for Tungsten Carbide and Chrome Carbide coated seats.
Standard splined stem connection (6 Inch and larger)
Standard graphite stem packing design
Trunnion mounted ball valve design for high pressure applications
Anti-blowout stem design
Anti-static design
Fire-safe design in accordance with API 6FA
ISO 5211 mounting design
Optional drain plug and body purge device available

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