Double Flanged Butterfly Valve, API 609, WCB, 12 IN, 600 LB

The Double Flanged Butterfly Valve features a triple eccentric, metal-seated design for superior durability and leak-tight performance. Made from ASTM A216 WCB, it meets API 609 standards and is rated DN300, PN100, 12 inches, Class 600 LB. With pneumatic actuation, it offers precise flow control in high-pressure applications.

Product Name: Triple Eccentric Butterfly Valve, Metal Seated
Design Standard: API 609
Body Material: ASTM A216 WCB
Size: DN300, 12 Inch
Pressure: PN100, Class 600 LB
End Connection: Double Flanged
Operation: Pneumatic Actuator

We offer a wide selection of Triple Eccentric Butterfly Valves designed to meet critical process requirements across industries such as hydrocarbon, power, chemicals, and fertilizers. These valves are available in various pressure classes, body styles, and materials, ranging from carbon steel to stainless steel and alloy steels. The valves can handle high temperatures up to 538°C (1000°F) and are available in sizes up to 64" (1600 mm). Customized options are available to meet customer-specific needs, including higher pressure classes, larger sizes, and cryogenic services. The valves are equipped with metal seats and conform to API 609 standards, providing reliable sealing and bi-directional flow. The machining is carried out on advanced 5-axis centers, and custom welding techniques are used to manufacture the valves.

Technical Specifications

» Size Range: 2-64 Inch (DN50-DN1600) (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 Temperature 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, or Grooved
» Actuations: Manual, Pneumatic, Electric, Hydraulic, Counterweight, Electro-hydraulic
» Medium: Water, Gas, Oil, etc.

Product Features

» Lockable Lever
» Site maintenance capabilities
» Easy automation options
» Positive tight shut-off
» Optional top flanges to ISO 5211
» Suitable for both gaseous and liquid services
» A wide range of body and trim materials for various medium services
» Conforms to ISO 5752, BS 5155, API 609, MSS-SP-68, ASME B16.10, ASME B16.5, DIN 3202

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: