ASTM A216 WCB Butterfly Valves, API 609, 14 Inch, CL300, Lug

The ASTM A216 WCB Butterfly Valves Plant produces high-quality butterfly valves with a triple eccentric design, ensuring minimal wear and long service life. These valves comply with API 609 standards and are made from durable carbon steel ASTM A216 WCB. The 14-inch (DN350) valves are rated for Pressure Class 300 LB (PN50) and feature lug ends for secure and versatile installation. They are operated by a worm gear mechanism, providing reliable and smooth operation.

Product Name: ASTM A216 WCB Butterfly Valve
Type: Triple Eccentric Butterfly Valve
Design Standard: API 609
Body Material: ASTM A216 WCB
Size: 14 Inch, DN350
Pressure: Class 300 LB, PN50
End Connection: Lug
Operation: Worm Gear

We offer a comprehensive range of Triple Eccentric Butterfly Valves in various pressure classes, body styles, and materials to meet critical process requirements across industries such as hydrocarbons, power, chemicals, and fertilizers. The product range includes valves in ASME classes up to 600 LB, with sizes up to 64 Inch (1600 mm), and is available in carbon steel, stainless steel, and alloy steels, suitable for temperatures as high as 538°C (1000°F). Custom valves in higher pressure classes, larger sizes, and other materials are also available based on customer requirements. The range also includes valves designed for cryogenic services. These metal-seated valves comply with API 609. Triple-offset Butterfly Valves are truly bi-directional and provide high-integrity sealing. All machining operations are performed on 5-axis machining centers, and customized welding machines are used in the manufacturing process.

Technical Specifications

» Size Range: 2-40 Inch (DN50-DN1000) (Larger sizes upon request)
» Pressure Ratings: Class 150-600 LB (PN10-PN100)
» Body Material:
   Carbon Steel (ASTM A216 WCB)
   Stainless Steel (ASTM A351 CF8/CF8M/CF3/CF3M)
   Low Temp Steel (ASTM A352 LCB/LCC)
» Shaft Material: 17-4PH, SS 410, XM-19
» Seat Material: Fully metal seat, SS + Graphite Seat
» Operation: Handle, Worm Gear, Pneumatic, Electric
» Temperature Range:
   Metal Seat: -29°C to 425°C
   Metal Seat (Cryogenic): -196°C to 121°C
» End Connections: Wafer, Lugged, Double Flanged, Butt Weld, Grooved
» Actuators: Manual, Pneumatic, Electric, Hydraulic, Counterweight, Electro-hydraulic
» Medium: Water, Gas, Oil, etc.

Product Features

» Lockable lever for secure operation
» Easy site maintenance
» Simple automation integration
» Positive tight shut-off for reliable performance
» Optional top flanges to ISO 5211 for flexible installation
» Suitable for both gaseous and liquid services
» Wide selection of body and trim materials for various media services
» Complies with ISO 5752, BS 5155, API 609, MSS-SP-68, ASME B16.10, ASME B16.5, and DIN 3202 standards

Triple Offset Butterfly Valve

Triple offset metal sealing butterfly valve uses the three eccentric structure with multi-layer metal seal or pure metal sealing ring, different sealing materials are being used according to the different temperature request from end user.The structure of valve sealing ring that was formed after machining for triple eccentric butterfly valve is oblique cone type, the purpose of which is to let the disc open in a subtle angle and seat sealing surface can be completely separated from the sealing surface of disc, thus to reduce the friction of sealing surface during the open and close.

Triple Offset Frictionless Design

• Offset 1: Offset for seat seal and the rotation center of stem.
• Offset 2: Center of pipe and disc.
• Offset 3: Seat sealing angle center line and flow passage center.
• The triple offset of butterfly valve ensures the valve disc is completely separated from seat sealing surface while open in a slightly angle which could reduce the friction of sealing surface during open and close and opening torque as well as prolong the service life of the sealing surface.
• Our metal sealing butterfly valve adopts multi-layer sealing ring to achieve the valve seal, the multi-layer seal ring is generally made of stainless steel and graphite combination The pure metal sealing can be used for special medium or high temperature.

Seat Structure

• Low Operating Torque: Our butterfly valves combine three offsets. Standard sealing is graphite + metal. Optional PTFE + metal combinations are available for different temperatures and media, using flexible laminated metal and graphite to ensure a tight, uniform seal and reduce operating torque.
• Zero Leakage: Laminated seal rings are self-aligning, allowing the valve to meet zero leakage per API 598.
• Fire-Safe Design: Standard valves are not soft-seated and meet API 607 fire-safe requirements.
• Anti-Blowout Shaft: Double anti-blowout design meets API 609 and ASME B31.1.
• Top Retention: Packing gland follower retains the stem.
• Bottom Retention: T-shaped collar prevents stem blowout.

ISO 5211 Top Mounting

Different End Connections Available: