Flange Type Butterfly Valve

Description

Triple offset Butterfly Valve

Products Range:

Size Rating: 3" ~ 112"(DN80 ~ DN2800)

Pressure Rating: ANSI 150lb ~ 900lb， PN6-PN160

Body Materials: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel.

( WCB, LCB, 20GL,LC1,LCC,CF8, CF8M, CF3, CF3M, WC6,WC9,SS 2205 etc)

Disc Sealing:SS+PTFE, SS+Graphite Laminated, Matel to Matel etc

Operation Type: Lever, Gear, Electric, Pneumatic, Hydraulic

Design Features:

Triple eccentric or double eccentric design

Metal to metal seated

Bi-directional service

Frictionless closure

Blow-out proof shaft

Wafer, wafer-lug, double flange ends

ISO top flange

Our triple offset valve, also known in the industry as triple eccentric or triple offset butterfly valve, represents an important step forward compared to traditional process valves, such as gate, ball, globe and plug valves. Although LLV shares the same cone-to-cone principle with a globe valve, sealing is performed by applying quarter turn rotation instead.Three offsets against the symmetrical axes of the pipe/valve eliminate any possibility of rubbing:

Offset 1

The shaft is placed behind the plane of the sealing surface to provide a continuous seat path.

Offset 2

The shaft is placed to one side of the pipe/valve centerline to allow the displacement of the seal from the seat during the 90° opening.

Offset 3

The seat and seal cone centerlines are inclined in respect to the pipe/valve centerline. This third offset completely eliminates rubbing.

Send Inquiry

If you have any enquiry about quotation or cooperation,please feel free to email us at sara@valvellv.com or use the following enquiry form. Our sales representative will contact you within 24 hours. Thank you for your interest in our products.

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