285 PSI Ductile Iron Butterfly Valve in Wafer or Lug Style

Description

The 285 PSI ductile iron butterfly valve features a ductile iron body that has more than twice the strength of cast iron and is on par with cast steel. With sizes ranging from 2 through 12 in. (52 to 305 mm), there are numerous applications including HVAC, domestic hot and cold water, isolation, and throttling. This valve cannot be used for air service.

 

The valve features a stainless steel trim with an EPDM molded-in liner, providing excellent bi-directional dead-end service. Both the wafer-style (WD 5022) and lug-style (LD 5022) are available as bare-stem, lever-operated or manual gear-operated valves.

 

Other features include:

  • Threaded collar bushing, providing a blow-out proof stem and a secondary stem seal
  • Extended neck allows for 2 in. (52 mm) of insulation below the mounting pad
  • Molded-in liner has overlapping coverage to provide flange seals that are fully supported by metal
  • Stabilizing upper and lower bushings
  • A one-piece high-strength solid stem (geometric drive) provides superior stem alignment for smooth operation
  • Smaller diameter aides in more streamlined flow
  • Requires no fasteners in the wetted area

Specs

  • Valve pressure rating 285 psi
  • 225°F continuous and 250°F intermittent service (107 and 121°C)
  • Wafer or Lug-style
  • EPDM molded-in seat liner
  • Stainless steel disc
  • Stainless steel stem with stainless steel bushings
  • Geometric drive
  • Extended neck
  • Operating mechanism: Bare stem, infinite position plate and lock, lever lock, manual gear operator, and pneumatic/electric automation
  • Not recommended for steam service
  • Designed to meet MSS SP-67
  • MSS SP-25 (markings)
  • U.S. Coast Guard Category A
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