Description
Technical Specifications
SPECS Cast Iron Butterfly Valve with the advantages of good corrosion resistance, reliable seal, small unsealed moment and so on, the valve body shall be one-piece design with extended neck and a concentric disc and seat configuration to allow for 2” to 48” of piping insulation.
In the cast iron Butterfly Valve design, the stem passes through the center of the gate into the pipe bore which is also located at the center of the valve. To seal the flow, concentric valves should have a very flexible seat rubber because the disk touches the seat first when rotated in a quarter turn.
Low-pressure applications are the common uses for this valve. They also go by these names: centric butterfly valve, centerline butterfly valve, or the resilient-seated valve.
Applicable Standard
Design & Manufacture Standard: API609
Face to Face: API609, BS EN 558, DIN3202,ISO 5752
End Connection: DIN, BS, UNI, ISO, ANSI, AS, JIS
Test Standard: API598
Products Range
Size: 2"~60"
Pressure Rating: ASME CLASS 150
Material: Cast Iron
End: Wafer, Lug, Flange
Operation: Operation: Manual, Gear, Pneumatic, Electric
Design Features
Concentric
design
Rubber,PTFE
seated
Blow-out
proof shaft
Wafer,Lug,Flange
Connection
ISO top flange
