Tjernlund 100-12

Automatically removes entrained air bubbles in hydronic system
• Stainless steel cOverall Lengthescing medium, non ferrous venting mechanism
  
  

  Bell & Gossett 112113

White Rodgers 50M56X-843

White Rodgers 50D50U-843

Diversified Heat Transfer B42-3

• Thick formula fills gaps in large diameter pipe and loose fitting joints
• Recommended for potable water, pressure pipe, conduit and DWV Oatey heavy duty clear PVC solvent cement is recommended for solvent welding all schedules and classes of PVC pipe and fittings up to 12" diameter, and non-pressure applications up to 18" with interference fit. Heavy duty clear PVC solvent cement can be used for potable water, sewer and drain, waste and vent systems. This product is compliant with California South Coast Air Quality Management District (SCAQMD) Rule 1168 and Ozone Transport Commission (OTC) regulations for volatile organic compound emission levels.
  
  

  Oatey 31008

In systems with multiple circulator zones to allow heat to flow only into the zones that are calling for heat
• Feature a thumb screw to manually open the valve and are available in a cast iron universal body and a bronze sweat in-line configuration
• The thumb screw can be opened manually for gravity feed applications, if the main circulator stops operating
• Open automatically when the circulator starts running, when the room thermostat is satisfied and the circulator is stopped, the flo-checks close immediately, preventing gravity circulation
• Water or glycol media
  
  

  Taco B146-22

Flo-cheks allow heat to flow only into the zones that are calling for heat
• Thumb screw can be manually opened for gravity feed applications if the main circulator stops operating
• Taco flo-cheks open automatically when the circulator starts running

Taco B146-20

In systems with multiple circulator zones to allow heat to flow only into the zones that are calling for heat
• Feature a thumb screw to manually open the valve and are available in a cast iron universal body and a bronze sweat in-line configuration
• The thumb screw can be opened manually for gravity feed applications, if the main circulator stops operating
• Open automatically when the circulator starts running, when the room thermostat is satisfied and the circulator is stopped, the flo-checks close immediately, preventing gravity circulation
• Water or glycol media
  
  

  Taco B146-21

Flo-cheks allow heat to flow only into the zones that are calling for heat
• Thumb screw can be manually opened for gravity feed applications if the main circulator stops operating
• Taco flo-cheks open automatically when the circulator starts running
  
  

  Taco B146-19

Beckett Parts 511

Duro Dyne 30350