Butterfly Valves

Technical Advantages of Butterfly Valves
• Excellent control characteristics.
• Tight shut-off even after innumerable operations.
• 90° movement for full open/close position. Provision for intermediatory
   locking after every 10° for regulation/ controlling purpose.
• Installation cost considerably reduced because of very low weight and
   compact design.
• No routine maintenance required.
• Longer life and reliable service with minimum component wear.
• Renewable seats. No supplementary gasket required with the adjacent
   pipework.
• Body & Stem totally protected from service fluid.
• Centrally mounted disc, shafts and bearings, therefore these valves give
   higher CV values.

Typical Fields of Applications
• Water treatment & effluent treatment plants.
• Refrigeration & Air- conditioning plants.
• Sugar factories / Breweries.
• Food processing Industries.
• Chemical/Petrochemical industries.
• Seawater & Brine Pumping.

Design standard: API 6D & API 594
• Simple but robust construction with reliability.
• Pressure rating - PN - 10, PN - 16.
• Range-DN-25 to DN - 700
• 100% tight shut-off.
• Short overall length-very short space required.
• Suitable for flange standards- BS, ANSI, IS, API etc.
• Materia l- M.S./ CS/ CF8 / CF8M
• 0 rings - Nitrile / EPOM / Viton / Silicon / PTFE.

Advantages
• No water hammer effect.
• Compact in design with high strength.
• Same valve can be installed horizontally or vertically.
• Very light weight compared to conventional check valves.
• Zero maintenance for years.
• Low pressure drop.

Application
• Sugar Industries
• Steel Industries
• Distilleries
• Water Supply
• Powerplants
• Fire Fighting Systems
• Food Processing Industries
• Petroleum Refineries
• Chemical & Pharmaceuticals
• Boiler Feed Water
• Paper Industries
• Cooling Water Systems
• Cement Factory

Multipurpose Wafer Designed Rubber Sleeved Butterfly Valves
• Pressure Rating PN. 10 & PN. 16
• Multipurpose Wafer Designed Rubber Sleeved Butterfly Valves
• 100% Tight Shut-Off
• one Piece Body With Centered Disk.
• Uniflow Direction Installation.

Component	Material Specification	Optional Material
Body	C.I. IS. - 210 FG - 200	WCB - ASTM - A - 216, CF8 - ASTM - A 352, CF8M - ASTM-A-351
Disc	C.I. IS. - 210 FG - 200	WCB - ASTM - A - 216, CF8 - ASTM - A 352, CF8M - ASTM-A-351
Shaft	IS - 1570 Grade 40C - 8	AISI - 410, 304, 316.
Seat	Nitrile / EPDM	Neoprene / Silicon / viton.
Bush Bearing	Self Lubrication / Sintered Bronze	G. M. / PTFE