BUTTERFLY DOUBLE ECCENTRIC/ OFFSET VALVES
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
|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.|
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|
DIMENSION TABLE UNDER UPDATION IN THE MEANTIME PLEASE REFER PRODUCT CATALOGUE