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Centric Butterfly Valves

Products

Butterfly Valves - Series Rotork-3000

Butterfly valves are preferred due to their compact design, low cost and maintenance free nature. These valves have very high CV to size ratio making them ideal for high flow with very low pressure drop across it.

Rotork Butterfly Valves are double offset in design therby ensuring low torque requirement while simultaneously providing tight shut-off through PTFE seating. These valves are ideal for vacuum service for very low absolute pressure.

Double Offset Butterfly Valve
PFA Lined Butterfly Valve
Rubber Lined Butterfly Valve

Design Features

  • Stem connection available in standard sizes or optional sizes to match standard secondary top plate drilling.
  • Unique “Center-Lock” seat design virtually eliminates any seat movement during the seating and un-seating of the disc.
  • Heavy duty square-grooved seat design with molded O-ring seals to serve as flange gaskets. EPDM and Buna-N seats are peroxide cured to yield the best elastic properties of the elastomer.
  • High strength disc with hand polished disc edge and hubs.
  • Heavy duty one-piece body with extended neck for 2” piping insulation. Standard coating is two coats of hard, Zinc-rich epoxy for excellent corrosion resistance.
  • Unique stem retention system to provide blow-out proof stem and easy assembly and disassembly of valve.

Quality and Performance Guarantee

  • Full material certification available for all major component Parts.
  • Full guarantee on design and Performance.
  • All testing performed to the requirements of ASME B16.34.

Technical Specifications

DESIGN ASME B16-34
VALVE SIZE 1. 1” up to 24“ (DN 25 up to DN 600)
Pressure Rating PN10 (hygienic series) ASME 150# to 300#
Materials Cast Iron, Carbon Steel, stainless Steel (SS304, SS316, SS316L) ,Duplex Stainless Steel, Super Duplex Stainless Steel, Alloys, Hastelloy, Inconel.
Design Standard API 609 / BS EN 558-1, / ISO 5752
Pressure / Temperature Rating ASME B 16.34
Test (Inspection) Standard API 598
Operation Lever, Gear, Actuator (Pneumatic and Electric Motorized)
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