Double Offset Disc Butterfly Valve

Spherical Disc – Double Offset Disc – Eccentric Disc Design Butterfly Valve Flow Control Lever Operated – Model Series: WBFSP1/6
Double Offset Disc – Eccentric Disc – Spherical Disc Design Butterfly Valve Gear Operated – Model Series: WBFSP1G/6G
Eccentric Disc – Spherical Disc – Double Offset Disc Design Butterfly Valve Pneumatic Actuator Operated – Model Series: WBFSP1P/6P

Double Offset Disc Butterfly Valve Manufacturing Size Range: DN25/25mm/One Inch, DN40/40mm/One and Half Inch, DN50/50mm/2”/Two Inch, DN65/65mm/2-1/2”/Two and Half Inch, DN80/80mm/3”/Three Inch, DN100/100mm/4”/Four Inch, DN125/125mm/5”/Five Inch, DN150/150mm/6”/Six Inch, DN200/200mm/8”/Eight Inch, DN250/250mm/10”/Ten Inch, DN300/300mm/12”/Twelve Inch, DN350/350mm/14”/Fourteen Inch, DN400/400mm/16”/Sixteen Inch, DN 450/450mm18”/Eighteen Inch, DN500/500mm/20”/Twenty Inch, DN550/550mm/22”/Twenty Two Inch, DN600/600mm/24”/Twenty Four Inch size.

Zero Leakage, High Performance, Spherical Disc, Dual Eccentric Disc, Double Offset Disc Butterfly Valve have been developed with extensive application, design and manufacturing expertise. Nivz make High Performance, Renewable PTFE Seat, Wafer Type – Flangeless Butterfly Valves are reliable, maintenance free shutoff with permanently gas-tight seal with an replaceable Teflon or Elastomer Rubber Seat.

Double Offset Disc Butterfly Valve wafer type body having two nos. flange locating holes for sizes up to 12” and from size 14” and above 04 nos. for easy alignment of valve during installation. Flange locating hole confirm to as per ANSI B 16.5 Class 125 & Class 150 / BS 10 Table “D”, “E”, “F” / PN 6, PN 10, PN 16 or other international standard.

Spherical Disc Type butterfly valves excess other conventional valves such as gate valve and globe valves in all aspects, especially in terms of light weight, less number of component, no flange gaskets required and economical operation and maintenance costs.

Salient Features of Double Offset Disc Butterfly Valve

Flangless – Wafer – Sandwich Type
Greater Sealing Capacity
Soft Seat Design, Easy to replace
Lower Torque with any fluid
Permanently tight closure
Uni-Directional Valve
Suitable for On-off as well as Throttling Service
Materials for almost all media
Short Face To Face Dimension
Wafer compact design Body
Long Service Life
Smooth, Easy Operation
Maintenance Free Version
Less Weight, Easy To Install
Leakage Class VI (Zero Leakage)

Features	Specifications
Design Standard:	BS 5155 / API 609 / AWWA C 504 Standard
Inspection & Testing Standard:	BS EN 12266 - I (BS 6755-I) / API 598 / ISO 5208
Flange To Flange Distance :	As Per ANSI B 16.10 / BS 5155 / API 609
End Connection:	Wafer Type To Suit Between Two Flanges ANSI B 16.5, Class 150 / 300 BS 10 Table D / E / F / H PN 6 / PN 10 / PN 16
Manufacturing Size Range:	2" (DN50) to 24"(DN 600)
Pressure Rating of Valve:	125 Class / 150 Class PN 10 / PN 16
Valve Operation :	Manual Flow Control Lever / Worm-Gear Actuator Operated Pneumatic Quarter Turn Rotary Actuator (Single Acting Spring Return / Double Acting) Motorized Electrical Actuator Operated (Single or Three Phase Power Supply)

Features

Specifications

Design Standard:

BS 5155 / API 609 / AWWA C 504 Standard

Inspection & Testing Standard:

BS EN 12266 - I (BS 6755-I) / API 598 / ISO 5208

Flange To Flange Distance :

As Per ANSI B 16.10 / BS 5155 / API 609

End Connection:

Wafer Type To Suit Between Two Flanges
ANSI B 16.5, Class 150 / 300
BS 10 Table D / E / F / H
PN 6 / PN 10 / PN 16

Manufacturing Size Range:

2" (DN50) to 24"(DN 600)

Pressure Rating of Valve:

125 Class / 150 Class
PN 10 / PN 16

Valve Operation :

Manual Flow Control Lever / Worm-Gear Actuator Operated
Pneumatic Quarter Turn Rotary Actuator (Single Acting Spring Return / Double Acting)
Motorized Electrical Actuator Operated (Single or Three Phase Power Supply)