Weir Control only valve suitable for many process
applications. Valve is available with Varidiff Trim, if cavitation
is a problem. The standard range of Butterfly
Valves has been designed to give cost effective flow control of
liquids and gases where a complete tight shut-off is not essential.
The ‘swing-through’ vane, which has no
contact with the valve body, enables the valves to be used with
high pressures and a wide range of temperatures. The
standard Butterfly Valve has a basic “equal percentage”
characteristic but this is only true between the 10° and 60° open
position.
Click an image to enlarge
Features / Benefits
- Flexibilityof design.extensive range of body & trim
options.
- Streamlined Vane provides minimum resistance to flow, no
seating torque
- Inboard bearings provide maximum support at closest point to
vane.
- Conventional gland housing provides uniform support to packing
rings.
Options
- Live loaded glands for control of emissions to atmosphere.
- Open & closed extensions for valves on elevated temperature
duty.
- Cold bonnet for cryogenic valves. · Purge connections between
packings.
- Gland with Lubricator fitted.
Ratings
ASME Class 150 to 2500
Sizes
50 to 3500 mm (2 to 140")
Temperature Ratings
-194°C to 1200°C (-320°F to 2192°F)
Materials
All castable materials, Carbon Steel, Stainless Steel, Duplex,
Super Duplex, Hastalloy, Inconel, Monel, Titanium, etc.
Options/Features
Cryogenic service, Vari-Diff Trim
