Bare Stem Butterfly Valve, Carbon/Stainless Steel, 12 Inches

Product Name: Bare Stem Butterfly Valve
Type: Triple Offset Butterfly Valve
Body Material: Carbon / Stainless Steel
Size: 12 Inches (DN300, 300 mm)
Pressure: Class 150 LB (PN20)
End Connection: Wafer
Operation: Bare Stem
Temperature Range: -196°C to 550°C

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 generation, chemicals, and fertilizers. The product range includes valves in ASME pressure classes up to Class 600, with sizes up to 64 in. (1600 mm), manufactured in carbon steel, stainless steel, and alloy steels, and suitable for operating temperatures up to 538 °C (1000 °F). Valves in higher pressure classes, larger sizes, and alternative materials are available upon customer request. The range also includes valves designed for cryogenic service. The metal-seated valves conform to API 609. Triple-offset butterfly valves are fully bi-directional and provide high-integrity sealing performance. All machining operations are performed on advanced 5-axis machining centers, and customized welding machines are employed to ensure consistent quality and precision during manufacturing.

Technical Specification

» Product: Triple Eccentric Butterfly Valve
» Size Ranges: 2-64 Inch (DN50-DN1600) (Larger sizes upon request)
» Pressure Ratings: Class 150-600 LB (PN10-PN100)
» Body Materials: Carbon Steel (ASTM A216 WCB), Stainless Steel (ASTM A351 CF8, CF8M, CF3, CF3M), Low-Temperature Carbon Steel (ASTM A352 LCB, LCC) 
» Shaft Material: 17-4PH, SS410, 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
» Ends Connections: Wafer, Lugged, Double Flanged, Butt Weld or Grooved
» Actuations: Manual, Pneumatic, Electric, Hydraulic, Counterweight, Electro-hydraulic

Product Features

» Lockable lever
» On-site maintenance capability
» Easy automation
» Positive, tight shut-off
» Optional top flange in accordance with ISO 5211
» Qualified for both gaseous and liquid services
» Wide range of body and trim materials suitable for various media and service conditions
» Designed and manufactured in accordance with ISO 5752, BS 5155, API 609, MSS SP-68, ASME B16.10, ASME B16.5, and DIN 3202