ASTM A890 5A Butterfly Valves, DSS, API 609, 12 Inch, 300 LB

Product Name: Duplex Stainless Steel Butterfly Valves
Type: Double Offset Butterfly Valve
Design Standard: API 609
Body Material: ASTM A890 5A, Duplex Stainless Steel
Nominal Size: 12 Inch, DN300, 300 mm
Nominal Pressure: Class 300 LB, PN50
Operation: Gearbox
End Connection: Lug Type
Temperature Range: -29°C to 150°C

This double-offset butterfly valve has been successfully applied in a wide range of extreme service conditions, including high-temperature applications, throttling steam control, polymerizing media, liquor services containing entrained solids, high-cycle industrial gas systems, process gas-off applications, paper stock isolation, vacuum pump isolation, corrosive chemical service, fire-safe refinery and chemical operations, heat-transfer applications, and throttling hydrocarbon service.

Technical Specification

» Normal Size Range:

   Class 150 LB: 2-60 Inch

   Class 300 LB: 2-48 Inch

   Class 600 LB: 2-24 Inch

» Normal Pressure Rating: Class 150-600 LB, PN10–PN40, 10K–20K

» Body Connection: Wafer type, Lug Type, Double Flange

» Body Material: Carbon Steel, Stainless Steel, Duplex Steel, Nickel Aluminum Bronze, Hastelloy

» Disc Material: Stainless Steel, Duplex Steel, Nickel Aluminum Bronze, Monel

» Stem Material: 17-4PH, SS 316, Duplex Steel, Hastelloy, Titanium Alloys

» Seat Material: PTFE or RTFE with Resilient Energizer

» Packing Material: PTFE

» Shutoff Rating: Class VI, Bubble Tight

» Design Standard: ASME B16.34, ASME VIII, API 609, MSS SP-68, EN 593, EN 12516

» Certifications: API 607, PED

» Shell/Seat Test: API 598

» Face to Face: API 609, ISO 5752

» Manual Operator: Bare Shaft, Lever Handle, Worm Gear Operator

» Automatic Operation: Pneumatic Actuator, Electric Motor

» Temperature Range: Soft Seat: -29°C to 150°C

» Medium: water, gas, oil, etc

Double Offset Frictionless Design

» 1st offset: Shaft is positioned downstream from the centerline of the seat.

» 2nd offset: Shaft is off center from the vertical axis of the seat.

» ISO 5211 Top Flange

» In addition to standard, durable V-ring packing, you can also choose from optional graphite

» high temperature packing or emissions control packing.

» Bi-Directional, Shut off performance

» Seat Options: Rubber, PTFE, RPTFE, or Fire Safe PTFE

» The double offset operating principle minimizes seat wear and lowers operating torque to

» improve durability.

» Positive sealing is mechanically achieved and does not rely on line pressure assistance.