A Butterfly Valve is a type of flow control device, typically used to regulate fluid flowing through a section of pipe. The valve is similar in operation to a ball valve. A butterfly valve is from a family of valves called quarter-turn valves. Body & Steam are protected from service fluid. It is from a family of valves called quarter turn valves.Butterfly valves are commonly used as control valves in applications where the pressure drops required of the valves are relatively low. Butterfly valves can be used in applications as either shutoff valves (on/off service) or as throttling valves (for flow or pressure control). Asshutoff valves, butterfly valves offer excellent performance within the range of their pressure rating. Typical uses would include isolation of equipment, fill/drain systems, bypass systems, and other like applications where the only criteria for control of the flow/pressure is that it be on or off. Although butterfly valves have only a limited ability to control pressure or flow, they have been widely used as control valves because of the economics involved. Butterfly valves allow high flows with relatively low pressure loss from the valves, and are typically used for flow control for valve openings from 30 to 70 degrees of full open. At valve openings greater than 70 degrees, the pressure loss of a butterfly valve is too low to produce any significant effect on flow or the energy loss of a flow system.


 
Butterfly Valves Butterfly Check Valve

Butterfly Valves

The characteristics of butterfly valve include:

Economical: Because butterfly valves can be designed in a physically compact packagewhere the closure mechanism (disc) is partially contained by the system piping in the openposition, they are very economical in terms of material usage. Since material costs are a significant portion of the product cost, the final valve is also very cost efficient. ·

Compact: The compact package also makes for a valve which is comparatively light and therefore relatively easy to handle. The compactness lends the valves to installation in places where other valves will not easily fit while the lightness makes installation and maintenance relatively easy.·

Configuration: The variety of body styles in which butterfly valves are available lends thevalves to a variety of installation configurations and preferences. Typical body style offerings include wafer, semi-lug, lugged, and flanged valves.·

Performance: Butterfly valves are generally good performing valves in addition to being economical. Performance characteristics for most designs include bi-directional sealing, low pressure loss at high flow rates, simple operation, and reliable sealing.·

Actuation: A variety of actuation options exist for butterfly valves including handle operation (typically only valves 8” and smaller), manual gear operators, and a wide variety of power operators including pneumatic, electric, and hydrauli

BUTTERFLY VALVES : 

·         MOC : IS 210 Gr. FG 200 / IS SG400 / ASTM A351 GR. CF8 / ASTM A351 GR. CF8M / ASTM A216 GR. WCB

·         DISC : IS 210 Gr. FG 200 / IS  SG 400 / ASTM A351 GR. CF8 / ASTM A351 GR. CF8M / ASTM A216 GR. WCB

·         COATING : POWDER COATED / NYLON COATED / NICKLE PLATED

·         SEAT : EPDM. / VITON / PTFE TEFLON PTFE / SILLICON

·         SHAFT : AISI 410 / AISI 304 / AISI 316

·         LINER : TEFLON PTFE

·         LINING : PFA / FEP

·         TESTING : BS 6755-1

·         W. PRESS : 12 BAR

·         ENDS : WAFER TYPE

·         STANDARD : AWWA C-504 / BS 5155 / BIS 13095

         TYPE : LEVER OPERATED / MANUAL WORM-GEAR OPERATED

         ALSO AVAILABLE OFFSET DISC DESIGN WAFER TYPE BUTTERFLY VALVES AND DOUBLE FLANGED TYPE AND LUG TYPE BUTTERFLY VALVES

Butterfly Check Valve

Product Description:

With our profound knowledge and vast industrial experience, we offer our patrons a comprehensive range of Butterfly Check Valve. Our products find its wide applications in numerous industries. These products are widely acclaimed and recognized amid our patrons for their long lasting nature and are cost-effectiveness. Moreover, offered products are designed using high-grade raw material and with the help of sophisticated machines.

Features:

  • Accurate dimensions
  • Precise design
  • Sturdy structure


Type:


Wafer Type MOC:

  • IS 210 Gr. FG 200
  • ASTM A351 GR. CF8
  • ASTM A351 GR. CF8M
  • ASTM A216 GR. WCB


Disc:

  • IS 210 Gr. FG 200
  • IS SG 400
  • ASTM A351 GR. CF8
  • ASTM A351 GR. CF8M
  • ASTM A216 GR. WCB (POWDER OR NICKEL COATED)


Lining:

  • NITRILE
  • E.P.D.M.
  • SILICON
  • HIPLON
  • VITON


Seat:

  • E. P. D. M.
  • PTFE TEFLON
  • NEOPRENE
  • SILICON
  • HIPLON
  • VITON


Shaft:

  • AISI 410
  • AISI 304
  • AISI 316


Specifications:

  • Testing: BS 6755-1
  • W. Press: 12 BAR
  • Ends: Wafer Type
  • For Check Valve: E.P.D.M. 'O' RING