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Butterfly Valves Widely accepted by Municipal Corporation, Water supply authorities, National Thermal Power Corporation, Nuclear Power corporation and other Government and Industrial users. These valves are designed as per latest editions of IS/BS/AWWA specifications.
Technical specifications
Manufacturing and Testing Standard
- BS 5155/IS 13095/AWWA-C-504
Size Range
Pressure Ratings
- BS 5155/IS 13095: PN06, 10 and 16 Bar
- AWWA-C-504: class 25, 75 and 150
Operation by
- Hand Lever (upto 150mm)
- Quarter Turn Worm Gear Box (Manual)
- Electrical Actuator with Quartor Turn worm
- Gear Box
- Hydraulic/Pneumatic Operator (600 mm and above)
End Connections
- Wafer/Double Flanged
- Flanges drilled to IS/BS/AWWA/ANSI/DIN/as per customer requirement.
Application
- Suitable for variety of liquids and gaseous media in water works, power plants, sewage plants, process industries, chemical and petorchemcial plants etc. for tight shut-off and control.
- Ideally suited for isolating as well as throttling services.
- Constructional Features
Body
Wafer/Double flanged short/long valve body pattern designed to withstand specified pressure. Integral cast feet as standard scope of supply (600mm and above)
Disc
Single/double eccentrically mounted streamlined disc to ensure complete shut-off.
Body Seat Ring
Accurately machined to close tolerances to match with body.
Shaft
Shaft type design, sealing with unique combination of 'O' Ring and 'U' Cup Seal to prevent entry of water into gear box.
Clamping Ring
Unique clamping ring design ensures controlled and uniform seat compression and facilitates easy replacement of seal.
Journal Bearing
Low friction journal bearings for supporting shaft outside fluid flow and seal ring provided for protection of bearing area.
Accessories (Optional)
- Extension shafting and floor stand.
- Disc locking arrangement at Non Driving End.
- Chain and chain wheel arrangement.
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