Butterfly Valves Series 7400

Butterfly Valves Product List

* Series 7400

HIGH PERFORMANCE DOUBLE OFFSET BUTTERFLY VALVES 

Dembla High Performance Double Offset Butterfly Valves Are Available In Most Of End Connections As Wafer, Lugged, Flanged, Butt Weld Ends etc. These Valve Are Type Approved By Lloyds As Per API 607 Excellent Controllability, Bubble Tight Shut Off, Greater Seat Valves Are Specially Designed For Applications In Chemical, Petroleum, Hydrocarbons Processing, Pulp & Paper And HVAC Industries. Well supported shaft with heavy duty bearings ensure perfect alignment of seat and disc for smooth and trouble free operations. Valves have been rigorously tested to ensure industry performance requirements.

FEATURES

• Valve body is solid, heavy duty. Seat
   Retainer construction allows Gasket conforming to API 609.

• Optimal disc geometry and cavity free flow passage offers
   minimum flow resistance and high Cv values.

• Heavy duty pins connecting valve shaft to disc avoids lost
   motion under high torque conditions.

• Long life, easy field replaceable seat placed in body, away
  from flow steam, provides bubble tight shut off.
  Valves are equally suitable for control and tight shut off applications.

• Low friction bearings provide maximum radial support for higher shaft loads.
  The PTFE lined bearings having low co-efficient of friction minimizes operating torque and
  reduces actuator size. They are slip in-place type, easy for assembly and disassembly.

• Seat option includes PTFE, EPDM, Viton Soft Seats and Flexible Metal Seats to suit variety
  of fluids and applications.

• Recommended for critical applications including high temperature services, throttling steam
  control, liquor services, gas applications, vacuum applications, corrosive fluids, refinery services,
  chemical services, hydrocarbon services, etc.

Testing and Inspection

Seat Design Options

Dembla offers a wide variety of seat design options which are cost-effective and provide solutions to your service requirements. The Double Offset disc construction minimizes the interference between seat & disc edges allowing longer seat life even under frequent valve operations. Seats are available in both rigid & flexible construction to suit specific requirements. The seats are held rigidly by the seat retainer which is
inserted within the body per API 609 design requirements. This construction allows use of Gasket conforming to API 601 (ANSI 16.5) Standard and eliminate the possibility of
JOINT LEAKAGE from body to the atmosphere. V -Ring PTFE seat having a flexi lip provides bubble tight shut off in both the directions. Suits to wide range of applications. Maximum working
Temperature 200°C.

FOR MORE INFORMATION ABOUT THE PRODUCT

PLEASE CLICK LINK BELOW

CATALOGUE.PDF