Bare Stem Ball Valve, API 6D, ASTM A105N, Metal Seat, Custom

Product Name: Bare Stem Ball Valve, Metal Seated
Design Standard: API 6D
Body Material: ASTM A105N
Size: Customized
Pressure: Customized
End Connection: RF
Operation: Bare Stem

The metal-seated ball valve features a metal-to-metal sealing design between the ball and seat. To meet varying service conditions and user requirements, a range of advanced hardening technologies are available for the ball and seat, including HVOF coating, nickel-based alloy spray welding, high nickel alloy spray welding, nickel-based tungsten carbide alloy spray welding, and cobalt-based hard alloy spray welding. The sealing face material offers impressive heat resistance, ranging from 540°C to 600°C, with a maximum tolerance of up to 980°C. It also provides excellent wear and impact resistance.
The valve seat is made of stainless steel, with stellite alloy overlay welding, ensuring durability. The ball is constructed from stainless steel, treated with three surface techniques: hard chrome plating, vacuum coating, and tungsten-titanium alloy and stellite alloy overlay welding, to meet heat and wear resistance requirements. KOSEN’s innovative ball manufacturing process ensures high accuracy and a super-mirror surface finish, enhancing performance.
Additionally, the metal-seated ball valve includes a spring-loaded pre-pressing seat, which guarantees absolute sealing reliability and stable operating torque. This design ensures safety, sealing performance, and operational flexibility, making it a highly reliable choice for a variety of demanding applications.

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
» Flexible Valve Opening and Closing Mechanism
» Fireproof Structure Design
» Double Block and Bleed (Metal-Seated Trunnion Ball Valve)
» Reliable Sealing Performance
» Blow-Out Proof Stem
» Corrosion Resistance and Sulfide Stress Resistance
» Optional Locking Device or Stem Extension
» Optional Direct Mounting to ISO 5211 Standard
» Full Port or Reduced Bore Options