Norriseal Series M200 Butterfly Valves
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Norriseal Series 200 butterfly valves provide bi-directional, positive shutoff to 200 psig working pressure. They are available in both resilient-seated (Series R200) and
metallined (Series M200) configurations. All Series 200 butterfly valves feature a unique angle disc that creates a 360° uninterrupted differential sealing surface.
Series 200 butterfly valves have independent flange seals and a non-wetted body that may be specified with either lug or wafer design. All Series 200 butterfly valves
are easily repaired in the field.
Specifications
| Sizes | 2″ to 36″ |
| Pressure ratings | 200 psig |
| Temperature range | -20 °F to 250 °F |
| Standards | |
| Body | Cast iron, Ductile iron, Nickel aluminum bronze |
| Disc | Ductile iron, Carbon Steel (WCB), Valve Bronze, Aluminum bronze, Aluminum Alloy |
| Seat | NBR, EPDM, Fluoroelastomer (Viton) |
Features
- Double-shaft seals and body bushings assure smooth,
low-torque operation - Independent flange seals
- Rigid-backed rubber seat easily field-replaced
- Non-wetted body available in lug or wafer designs
- Rigid drive, precision disc-to shaft connection
- Resilient-seated design (R200) offered in a wide variety
of elastomeric seals and metallic materials - Metal-lined design (M200) provides positive shutoff with
minimum sealing material - Available with a variety of pneumatic, electric and
hydraulic actuation
