WATTS® 0858546 AS-MB, AS-MB 75 Microbubble Air Separator, 3/4 in, FNPT, 150 psi, 240 deg F, Brass, Domestic

WATASMB75 MFG #: 0858546
  • Connection Type: FNPT
  • Domestic / Import: Domestic
  • Material: BRASS
  • Nominal Size: 3/4 in
  • Temperature Rating: 240 degF
  • Working Pressure: 150 PSI
  • Dimensions: 6-15/16 in L x 3-12/16 in W
  • Flow Rate: 10.2 gpm
  • Manufacturer: Watts Water Technologies
  • Manufacturer #: 0858546
  • Series: AS-MB
  • Suitable Media: Coalescing
  • Type: Microbubble
This 3/4 in FNPT microbubble air separator is designed for efficient separation and elimination of entrained air in hydronic heating systems. This air separator features a durable brass body, high capacity DuoVent air vent assembly, corrosion-resistant coalescing media and 1/2 in FNPT bottom tapping for use with boiler fill fitting. The rugged corrosion-resistant polyphenylsulfone (PPSU) coalescing media withstands petroleum based cleaners, glycol anti-freeze and temperatures up to 240 deg F in heating systems and methanol based anti-freeze solutions in ground-source heat pump loops. No minimum inlet/outlet piping length is required for proper operation and this air separator can be easily disassembled for inspection and cleaning.

WATTS® Air Separator, Microbubble, Series: AS-MB, 3/4 in Nominal, FNPT, 150 psi Working, 240 deg F, Suitable Media: Coalescing, 10.2 gpm, Brass, 6-15/16 in L x 3-12/16 in W, Domestic
  • Features
  • Durable forged brass body construction
  • Rugged corrosion-resistant polyphenylsulfone coalescing media
  • Includes high capacity DuoVent air vent assembly
  • No minimum inlet/outlet piping length is required for proper operation
  • There is no minimum inlet/outlet piping length required for proper operation of AS-MB Microbubble Air Separators
  • Rugged, polyphenylsulfone (PPSU) coalescing media withstands petroleum based cleaners, glycol anti-freeze and temperatures up to 240 deg in closed-loop heating systems and methanol based anti-freeze solutions in ground source heat pump loops
  • DuoVent air vent assembly consists of a brass cover, air vent with silicone rubber seal, shutter, polyethylene float with valve plug, automatic vent with black cap and manual vent with red cap
  • Fully serviceable can be disassembled for inspection and cleaning
  • Series AS-MB does not require laminar flow for efficient separation and elimination of entrained air in hydronic heating systems
  • Air vent assembly has a high capacity and high temperature rating and is ideal for use with glycol systems or for use as an anti-vacuum device