OFFSET DISC BUTTERFLY VALVE

Flow-Tek Butterfly Valve make an excellent choice by combining the balance of an economical valve with the performance you expect in a commercial, HVAC and an industrial Butterfly Valve.

The wafer style body has universal design to fit between pipe flanges of almost all popular flange standards, also available with Flanged End connection.

  • Offset disc design.
  • The resilient seal encapsulated in the disc is fully adjustable and replaceable.
  • One piece seal retaining ring.
  • Standard SS 304 for body seat ring and seal retaining ring, other materials are optional.
  • Available in metal to metal seating.
  • Horizontal shaft as standard, vertical shaft mounting optional.
  • Suitable for throttling service.
  • Low head loss.
  • Face to Face dimension available to different standards.
  • Flanges according to international standards.
  • Standard supplied including worm gear operator: other means of operation on request.
  • Size Range : 50 NB TO 1200 NB (larger sizes on request)

OPERATION:

Lever / Gear / Pneumatic Actuator / Pneumatic Cylinder / Electrical (Motorized) Actuator / Manual Override Arrangement with Pneumatic & Electrical Actuator.

APPLICABLE STANDARD:

Design Standard :BS 5155 / API 609 / IS 13095
Face to Face :BS 5155 / API 609 / IS 13095 (Wafer Short)
End Connection :Wafer Type / Lug Type / Flanged End to suit ANSI / DIN / BS / JIS / IS etc.
Testing Standard :BS 5155 / BS 6755 (Part I) / API 598 / IS 13095

SEAT TEMPERATURE RATINGS: (For Resilient Seated Butterfly Valves)

MATERIALTEMPERATURE RATINGS °C (°F)
EPDM (2" - 16")-34 To 107 (-30 to 225)
EPDM (18" & Larger) -34 To 107 (-30 to 225)
PTFE4 To 121 (40 to 250)
BUNA - N-12 to 82 (10 to 180)
NEOPRENE-6 to 93 (20 to 200)
HYPALON-17 to 135 (0 to 275)
VITON-12 to 135 (10 to 275)
HIGH TEMPERATURE (VITON)-12 to 204 (10 to 400)
  • Water works.
  • Power plants.
  • Sewage plants.
  • Process industries.
  • Chemical and petrochemical plants.

Product Range

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