Manual Butterfly Valves With Worm Gear Operator

The Valves are multi-position designed for long life in heap leaching applications.

Features & Benefits

  • Large passages provide excellent flow rates.
  • Compact design is ideal for flow control in tight spaces
  • Position indicator allows for easy-to-view setting.
  • One-piece Stainless Steel 316 shaft with engagement over the full length of the disc provides for easy opening and closing and helps prevents blowouts.
  • All valves pass ISO 9393-1 and ISO 9393-2:2005(E) pressure tests ensuring high quality.
  • Full liner with integrated material ID and position lock ensures hte liner will not pinch during disc seating.
  • Full 8 or 12-bolt hole pattern conforms to ANSI/ASME B116.5 Class 150 and DIN-ISO-PN10.
  • Service temperature of body rated to250° F (121° C) for adverse conditions.
  • EPDM materials conform with NSF61 regulations for use in potable water.
  • Liner material designation is molded into a visible tab for easy identification.
  • All hardware is 316 grade stainless steel for durability.


  • Gold, silver, coal and other mining applications
  • Water and wastewater treatment
  • Contaminated and aggressive fluids
  • Process technology
  • Environmental technology
  • Applications where durable, exacting butterfly control is desired


D[mm] ≤ √(250 x Flow[m3/hr] / √Pressure [mwc])