Butterfly Valves are having wide range of applications in Process Industries, Water Treatment, Sewage Plants, Power, Petrochemicals, Steel Plants and allied industries in a very large quantity. All type of Butterfly Valves is available with control type lever, Manual Gear, Pneumatic and Electric Actuators. We offer Butterfly Valves in cryogenic type of design. Our butterfly valves are made up of high quality raw material and are designed to actually optimize its efficiency and they provide long lasting tightness and are highly reliable. They are very easy and fast to open.

A Butterfly Valve is a flow regulating disc valve. According to the BVAA, a Butterfly Valve is “a Valve in which the obturator rotates about an axis at right angles to the direction of flow and, in the open position flow passes around the obturator.” Butterfly Valves Manufacturer operate similar to Ball Valves in their 90-degree rotation and allow for quick shutoff.

Butterfly valves are recently have been in trends due to their very thin profile between flanges that makes the valves lighter in weight and create very small instant footprint. And this design of the valve makes its cost lower if compared with other valves. There are various types of butterfly valves and each of them has very unique design and features. Some of them are:

Butterfly Valves Manufacturer in Ahmedabad

Concentric Disc Butterfly valve

Concentric Disc Butterfly Valve is mainly used in water treatment and also in other industries due to its unique features like light in weight, small size, easy to install and very low cost. The common design of the butterfly valve is called Concentric Disc Butterfly Valve. In this valve the stem is centered in the middle of the valve disc which is in middle of the pipe bore.

These valves are provided with integrally moulded its body liner with elastomer for perfect seating and complete isolation of body material. There are No gaskets necessary as the body liner provide a perfect seal between the body valve and pipe flanges. Valves are designed and manufactured as per BS 5155/API 609/AWWA C504. The valves are available for all fluid service requirements with suitable body liner, disc material combinations for up to 210o deg.C in PN6, PN 10, PN 16, ANSI 125 & 150 rating. Other special materials and design are also provided according to the customer’s requirement.

Offset Disc Butterfly Valve

The stem in the offset disc butterfly valve is located behind the disc. There are few, if any, valves of this type left on the market today due to the development of the double-offset, or high- performance, valve. In the offset disc butterfly valve the stem grounds the disc to get in touch with 3-4 degrees left to travel with the design that get less in touch will enable the valve to last longer.

Offset Disc Butterfly valves are designed to withstand higher pressure than the concentric disc design. In this design, the disc remains in contact with the seat only during closing of the valve. Due to this design, the seat lasts for longer period than in Concentric Disc design. Offset disc butterfly valves are suitable to replace the sealing element as and when required. The offset disc butterfly valve is available in Double offset and triple offset The triple offset valve is used in similar industries as the double offset butterfly valve, but in more demanding applications.

  • Double Offset Disc Butterfly Valve:
    The double-offset or high-performance butterfly valve has a disc with two offsets. The double- offset butterfly valve is used in systems requiring higher pressure resistance. The disc is positioned in the center of the pipe bore and arranged to increase sealing ability and decrease wear to the Valve. High-performance butterfly Valve is ideal for handling water, oil, steam, and gas in a cost effective, light weight design. The Butterfly Valve’s corrosion-resistant, single-component thrust bearing/disc spacer reduces body wear and helps ensure positive centring of disc in the valve bore.Double-offset Butterfly Valves are available in a large range of materials required for critical process in diverse industries such as Cement, Power, Chemicals & fertiliser, Water treatment, etc. Based on customer requirements, valves in higher pressure classes, larger sizes and other materials are also offered. The range comprises valves for cryogenic services also.
  • Triple Offset Disc Butterfly Valve:
    Triple eccentric (offset) Design prevents galling and scratches between the metal seat and the metal disc due to its unique design. The seats are either laminated or solid metal seat design. The only time where the seal comes into contact with the seat is at the point of complete closure. Triple offset valves are generally used in applications which require bi-directional tight shut-off in oil and gas, LNG/NPG terminal and tanks, chemical factories, and shipbuilding. They are also used for dirty/heavy oil to prevent extrusion.

With the triple offset butterfly valve there are three offsets. Two are placed in a similar position to the double offset butterfly valve, while the third offset is the geometry of the seating surface, creating a type of cone shape of the disc and seat. This cone angle, along with the two eccentric shaft offsets, allows the disc to seal against the seat with no friction.

Triple offsets are generally used in applications similar to gate valves, where a metal seat is required, and tight shutoff and/or quarter turn actuation is desired. Applications like high pressure steam (over 150 PSI), superheated- steam, high temperature gases and oils, high temperature applications are good for this type of valve because a metal seat is required over a soft seat.

The triple offset valve is used in similar industries as the double offset butterfly valve, but in more demanding applications.

Sizes DN50 to DN900 ( NPS 2 to NPS 36)
Pressure Rating Class 150 & PN10 / PN 16
Material Construction Ductile Iron – Grey Cast Iron, S.G. Iron, etc.
Cast Carbon Steel – WCB, WCC, etc.
Low Carbon Steel – LCB, LCC, etc.
Martensitic Steel – WC1, WC6, WC9, C5, C12, CA15, etc.
Austenitic Stainless Steel – CF8, CF8M, CF3, CF3M, CN7M, CG3M, etc.
Duplex Stainless Steel – CD4MCuN, CD3Mn, etc.
Design & Manufacturing Standard BS 5155, API 609, AWWA C504
Face to Face Std. BS 5155, API 609, AWWA C504
End Connection Std. BS 5155, API 609, AWWA C504, ASME B16.5 & ASME B16.10
Testing Standard API 598
Type of Bore Standard (Full Bore)
End Connection Type Wafer Type, Lugged Type, Flanged Ends, etc.
Seat Design Soft Seat – EPDM, Nitrile, Viton, PTFE, RPTFE, etc.
Disc Design Centre Disc, Offset Disc, Double Offset Disc, Triple Offset Disc,
Operated Type Hand Lever, Gear, Pneumatic Actuator, Bare Shaft, etc.

Salient Features

  • Excellent flow control in quarter turn operation.
  • Compact, space saving design.
  • Bi-directional1 00% tight shut off.
  • Low weight, low maintenance, long service life, Easy automation / retrofit possible.
  • Stream lined valve disc for lower pressure drop.
  • Both shafts mounted in bearing supports for easy operating torques.
  • Suitable for mounting between all standard flanges.
  • Gasket packing not required to install between flanges.
  • Sizes: 40mm to 400mm

Application

  • Water treatment plants
  • Water distribution systems
  • Power Stations
  • Chemical / Petrochemical Industries
  • Steel Mills
  • Sugar Factories / Breweries
  • Sewage Plants
  • Process Industries
  • Seawater and Brine Pumping
  • Food Processing Industries
  • Mining Industries