BUTTERFLY DOUBLE ECCENTRIC/ OFFSET VALVES

butterfly-double-eccentric Advance Butterfly Valve has, over a period of years, established a reputation for manufacturing high technology valves. Our range of double offset butterfly valves are manufactured in sizes from 80mm to 3000mm and pressure from 10 Bar (class 125) to 20 Bar (class 150). The valves are available in wafer, lugged and double flanged configurations. A wide variety of drilling can be accommodated to meet most European, American and Asian specifications. Our design procedure include finite element stress analysis to ensure material suitability and strength
The salient features include :-
  • 2” to 120”
  • Upto ANSI # 150
  • From – 50° to 205° C
  • End connections to suit, including Wafer, Lugged, Flanged, Butt Weld, Special design include Jacketed, Zero leakage & bi directional
  • EPDM and PTFE sealing
  • Standard compliance with 609 & 598 among others

Design Features | Construction Features | Installation Dimensions

Design Features

Our design procedure include finite element stress analysis to ensure material suitability and strength. In order to understand Double Eccentric – Butterfly Valve basic model of Double Eccentric Axis is show below :-

DOUBLE OFF-SET VALVE MATERIALS
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Body and Disc Fabricated carbon steel SABS 1431/300WA, cast iron BS1452 Gr 260, Sg iron BS2789 Gr 420, cast steel BS1504 Gr 480. Also stainless steels and nickel alloys.
Shaft Stainless steel 431 (EN57)
Bearing Bush Glacier Du, Deva, Stellite
Seals Nitrile, Buna N, Viton, PTFE, laminated stainless steel
Retaining Ring Plated mild steel, stainless steels
Actuation Advance Valves are generally fitted with worm gearboxes for manual operation. They can be fitted with electric, pneumatic or hydraulic actuators to suit output drives in accordance with ISO 5211.

Construction Features

Advance Valves is the leader in manufacturing of high performance valves, offering a comprehensive range of elastomers, PTFE and metal seating valves. Double Eccentric – Butterfly valves are manufactured in sizes from 3” to 120”. It is available in wafer, lug-type and fully flanged configurations.

Flange drilling can accommodate BS 4504, DIN 2631/2/3/4 as well as ANSI B 16, 5, API 605 and AWWA C207. Elastomer-seal valves operate on the double off-set principle and are pressure rated up to 25 Bar.

ELASTOMETER SEAL ESDOUBLE OFF-SET
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Installation Dimensions

DIMENSION TABLE UNDER UPDATION IN THE MEANTIME PLEASE REFER PRODUCT CATALOGUE