Key Specifications / Features
ASTM A890 5A Butterfly Valve is a high-performance double-offset disc valve engineered for severe service conditions. This valve has a 300 mm (12 inch) nominal diameter with a Class 300 LB pressure rating. The body is cast from ASTM A890 Grade 5A duplex stainless steel. The valve meets API 609 Category B standards. The double-offset design reduces seat wear and extends service life. It features a gearbox operator for precise flow control.
- Model No.: KV-20260610-DOBV-01
- Hits: 0
- Categories: Double Offset Butterfly Valve
- Tags: ASTM A890 5A Butterfly Valve, 12 Inch Butterfly Valve, Double Offset Butterfly Valve
Detail Information
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.
» 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
» 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.
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