BUTTERFLY TRIPLE ECCENTRIC/ OFFSET VALVES

butterfly-triple-accentric
The salient features include :-

  • 3″ to 120″
  • High pressure range of ANSI # 300, # 600 & #900
  • Suitable for -196° C (Cryogenic) to 900° C (Fire Safe applications)
  • Bi-directional performance
  • End connections to suit, including Wafer, Lugged, Flanged, Butt Weld, Special design include Jacketed, Zero leakage & bi directional
  • Metal to Metal seated, thus intrinsically fire safe
  • Standard compliance with API 609, 598, 607, BS 6364 amongst others

Design Features | Construction Features | Installation Dimensions 

Design Features

Advance Valves metal seating high pressure butterfly valves provides a bi-directional bubble tight shut off. This is achieved by introducing state-of-the-art triple eccentric disc geometry. triple-eccentric-valve-detail_clip_image002_0000

The valve shaft is off-set against the seal, (1st off-set), and against center line of the valve (2ndt off-set). The seating edges are machined with a continuously changing slope from an angle alpha on top of the oval seat ring to an angle beta at the opposite side (3rd off-set angular).

This geometry ensures that the seat ring stays clear of the seat except at the final shut-off position, resulting in long seat life and operating cycles in excess of 500 000.

Construction Features

The valve seal, is manufactured from laminated stainless steel with PTFE or grap oil laminate depending on the applications. The seal is held in position by a bolt-on retaining ring and, together with the stainless seat ring, is easily replaceable. triple-eccentric-valve-detail_clip_image002

A gasket prevents leakage around the seal ring. The metal seating valve can operate within a temperature of -249° C to +600° C. Valve designs for cryogenic applications are available on request.

For low temperature applications, the metal seat can be substituted by a PTFE seat. Advance High Pressure Butterfly Valves are manufactured in a wide range of materials to suit most applications.

For low temperature applications, the metal seat can be substituted by a PTFE seat. Advance High Pressure Butterfly Valves are manufactured in a wide range of materials to suit most applications.

Installation Dimensions

DIMENSION TABLE UNDER UPDATION TO COVER THE COMPLETE RANGE COVERING UPTO 2200 MM AND PRESSURE Class ANSI #900.

IN THE MEANTIME PLEASE REFER PRODUCT CATALOGUE