Watts AS-MB-100 Microbubble Air Separator, 1", IPS, 150 psig, 240 deg F, 15 gpm, Forged Brass, 3-12/16" L x 6-15/16" H

Features a durable brass body construction, corrosion-resistant polyphenylsulfone cOverall Lengthescing media that withstands petroleum based cleaners, glycol anti-freeze
• Requires no minimum inlet/outlet piping length for proper operation
• DuoVent air vent assembly has a high-capacity and high-temperature rating
• Fully serviceable - can be disassembled for inspection and cleaning
• Bottom tapping for use with series RBFF residential boiler fill fitting
  
  

  Watts Water AS-MB100

Therma-Flow AW-6 WELL Aquastat Well,

Therma Flow Parts AW-6 WELL

Watts Water BD911S Bronze Combination Fill Valve Feeder and Backflow Preventer, 1/2" NPT

Pre-assembled for ease of installation
• Push butTon fast fill with auto-stop to prevent system over-pressurization
• Dial indicator eliminates need for pressure gauge
• High capacity fill valve for quick system filling and purging
• All bronze body construction union solder x NPT connections
• Dial indicator plus or minus 2 psi
• Series BD911 combination fill valve and backflow preventer consists of a model 9D backflow preventer and model BD1156F feed water pressure regulator in one pre-assembled unit
• Combination bronze dial set fill valve
  
  

  Watts Water BD911S

Sid Harvey B133 Gauge Glass and Valve Set, 12 Inch L x 5/8 Inch Dia,

Sid Harvey B133

Sid Harvey B131-12 High Pressure Gauge Glass, 12 Inch L x 5/8 Inch Dia, 6/Pack

Useful in a variety of applications, including monitoring the amount of oil in tank
• Gauge glasses are required by the ASME boiler and pressure code on steam boilers
• Allows the liquid level in any vessel to be visually inspected
• These sets and accessories fit the vast majority of steam boilers
  
  

  Sid Harvey B131-12

Sid Harvey B132-2 Molded Rubber High Pressure Gauge Glass Washer, 5/8 Inch Dia, 12/Pack

Sid Harvey B132-2

Amtrol Parts Diaphragm Expansion Tank W/Fill Valve 2 Gallon 1/2" FNPT 100 psig

Amtrol Parts B135-60

Watts Regulators series 740 boiler pressure relief valves are used in hot water space heating boiler applications to protect against excessive pressure on all types of hot water space heating boiler equipment. It consists of a iron body construction with expanded outlet drain connections for hot water space heating boilers, non-metallic disc-to-metal seating, stainless steel spring, and test lever. Series 740 offers large discharge capacity, resists corrosive water conditions, resists sticking and freezing, and prevents water and sediment from being trapped in the seat. It is designed for emergency safety relief and shall not be used as an operating control.

Iron body with expanded outlets for hot water space heating boilers
• Seat located above drain, water can't be trapped and sediment can't foul seat
• Non-mechanical seat-to-disc alignment will not stick or freeze
• Each hot water space heating boiler shall be equipped with a pressure relief valve set to relieve below the maximum boiler working pressure
• Water seal of high temperature resisting material isolates spring working parts from water during relief
  
  

  Watts Water B145-6

Electric Water Feeder 2350000 BTU Output Import

Eliminates necessity to manually add water to the boiler
• Can be used with mechanical or electronic low water cut-off controls
• Quick-change replaceable cartridge valve and strainer
• Manual feed button
  
  

  McDonnell & Miller B112-10

Sid Harvey B131 Regular Gauge Glass, 8 Inch L x 5/8 Inch Dia, 6/Pack

Useful in a variety of applications, including monitoring the amount of oil in tank
• Gauge glasses are required by the ASME boiler and pressure code on steam boilers
• Allows the liquid level in any vessel to be visually inspected
• These sets and accessories fit the vast majority of steam boilers >
  
  

  Sid Harvey B131

Amtrol Parts Diaphragm Expansion Tank W/444 Purger 4.4 Gallon 1/2" NPTM 100 psig

Amtrol Parts B135-68

Sid Harvey B132-1 EPDM Lathe Cut Gauge Glass Washer, 5/8 Inch Dia, 12/Pack

Sid Harvey B132-1