Industrial Automation Magazine India

Neles® BW series butterfly valve for high pressure applications

Published on : Tuesday 30-11--0001

Neles BW series metal seated triple eccentric disc valve is designed for both control and tight shut-off in severe service. Multiple seat options makes it well suited for the refining, power, petrochemical and chemical industries. The BW series provides extended operational life in high cycle, high temperature and abrasive applications.Problem solver for high pressure applications

 

Features

 

    Solid, sturdy all metal seat design, based on metal-to-metal contact.

    No resilient components needed for tightness

    Excellent control and on-off capabilities

    Design according to API 609 and ASME B16.34, full rated ASME Class 900 to 2500

    Low emissions according to ISO 15848

    Certified safety performance, capable to SIL 3 level according to IEC61508

    Mounting face according to ISO 5211

    Extremely wide temperature range up to +1150 °C / +2100 °F

    Fire safe certification according to API 607, 6th edition

    Wide rangeability in services with low pressure drop

    Two piece shaft design

    Industry best valve capacity.

 

Benefits

 

    Heavy-duty stem and bearings design extends service life and is insensitive to thermal cycles and impurities

    Extremely high cycle life minimizes the need for maintenance, and increases Mean Time Between Failure (MTBF) value

    Low cost of ownership

    Industry smallest operational torque resulting in cost efficient valve package

    On site interchangeable seat can be replaced without disassembling the disc and shaft.

    No adjustment or special tools needed

    Minimized pressure loss and energy costs of the process

    Consistent performance even in the most difficult, changing process conditions

    In-built thermal and pressure compensation

    Industry best valve capacity

    Shortest possible maintenance hours

 

 

 Specifications

Body constructions:        Flanged short and long pattern

Lug and wafer design

Butt weld ends

Body pressure rating:     PN 40 - 400 / ASME Class 300 - 2500

Seat design:        Single U-type metal seat

Double seat (Double Block and Bleed, DBB)

Solid proof

Size range:          DN 100 - 1600 / 4" - 64"

Temparature:    -200 ... +1150 °C / -328 ...+2100 °F

 

It is used in refining, power, petrochemical and chemical industries.

 

Metso Corporation

India

Phone: 022 6122 1800

Email: kati.tattari@metso.com