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AATMANIRBHAR BHARAT

BUTTERFLY VALVES

EXPERT make Butterfly Valves have been developed with extensive application, design and manufacturing expertise. These valves have a fully rubber lined single piece body pattern with centric disc construction. The Body liner which also functions as the soft seat comes in either a replaceable or an integrally molded (bonded) version and offers a leak tight bi-directional sealing against vacuum.

Butterfly valves possess many advantages over other valves, especially for large valve applications. Savings in weight, space and cost are the most obvious advantages. The maintenance costs are usually low because there is minimal number of moving parts.

Constructional Details

Centric Disc Design with a single piece Rubber Lined Body (Integrally- moulded) provides perfect seating for longer life and superior performance when compared to valves with replaceable seats. It also isolates the body material from media to prevent it from any corrosive and abrasive impact of fluid.

The body liner can be provided to suit specific fluid service for long maintenance free life & it also eliminates the need for additional flange gaskets during installation & valves are easy to install in any position between horizontal to vertical piping.

Features

  • Self lubricated PTFE lined bearing for two stub shafts ensuring minimal friction torque
  • Bi Directional Valve with tight shut off
  • Double 0 ring are molded in both upper and lower journals eliminating secondary leakages
  • Top flange drilling drilled to suit ISO 5211 mounting flange will accept all styles of hand lever, multi-turn manual gear and actuators
  • Suitable for both ON I OFF and Throttling applications
  • Seat liner extending on the flange contact faces eliminates the need for additional flange gaskets

Typical Applications Are

Paper & Pulp Industries | Water treatment plants | Power Plants | Oil & fuel | Food industry | Mining | Chemical industry | Steel production

Size Ranges

PN 10 DN 40 up to DN 800
PN 16 DN 40 up to DN 300

Technical Data | Design Features

Design StandardAPI-609
Testing StandardAP I598
Pressure/Temperature RatingPN 10 I PN 16
Face to Face DimensionsAs per ISO 5752 Wafer short & API 609 Category A
End ConnectionWafer or Lugged Operation
OperationLever, Gear, E lectric & Pneumatic Actuator
MaterialDl | CI | ASTM A216 Gr.WCB | CF8 | CF8M

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