Amtrol Parts Diaphragm Type Expansion Tank 4.4 Gallon 1/2" MPT 30 Lbs.

Accepts expanded water as system temperature rises to reduce pressure build-up
• Helps reduce energy consumption and reduces system wear
• Suitable in propylene glycol applications with mixtures up to 50%
• Heavy-duty butyl/EPDM diaphragm
• Steel system connection
• Projection welded air valve
• Made in USA
  

Bosch BVA-48WN1-M18 Air Handler

4 Ton 18 SEER Multi-Position Factory Installed TXV
• Multi-speed ECM blower motor.
• Factory-installed TXV metering.
• Multi-position Installation - upflow or horizontal right standard;
• field convertible to horizontal left or downflow.
• Multiple electrical entry locations.
• Field-installed electric heater kits 5, 7.5, 10, 15, 20KW available as an accessory.
• Dual front panel design for ease of maintenance.
• Blower and coil easy slide out for ease of maintenance.
• Fully-insulated cabinet design.
• Horizontal and vertical condensate drain pans standard.
• Condensate drain pan is polymer with UVC inhibitor.
• Primary and secondary condensate drain fittings.
• Factory-sealed cabinet certified to achieve 2% or less air leakage rate at 1.0" water column.
• Integrated filter rack with tool-less door access.
• AHRI and ETL Listed.,
  

Watts Regulators series 1450F dual controls regulator and relief Valve are for use in commercial and residential hydronic heating systems to fill the boiler and piping system with water, and to maintain water pressure in the system at all times. It also provides make-up water to the system in the event of system leaks. It consists of an iron and bronze body construction with NPT threaded inlet and outlet connections, an attached iron body, diaphragm relief valve, a tight seating check valve, purge lever for manual purging, and a stainless steel strainer. Series 1450F has high capacity performance and simplified servicing design. It is suitable for use in the boiler feed lines of hydronic heating systems.

Combination fill valve and safety pressure relief valve
• Tight seating check valve
• Purge lever for manual purging
• High capacity
• Stainless steel strainer to protect the valve disc from fouling
• 15 psi set and 30 psi relief valve setting
  
  

  Watts Water B144-1

Dual Float and Switch Assembly 15 psi

1-piece unit that facilitates installation and ensures the most up-to-date construction
• Complete float and dual switch assembly
  

Watts Regulators series 1450F dual controls regulator and relief Valve are for use in commercial and residential hydronic heating systems to fill the boiler and piping system with water, and to maintain water pressure in the system at all times. It also provides make-up water to the system in the event of system leaks. It consists of an iron and bronze body construction with NPT threaded inlet and outlet connections, an attached iron body, diaphragm relief valve, a tight seating check valve, purge lever for manual purging, and a stainless steel strainer. Series 1450F has high capacity performance and simplified servicing design. It is suitable for use in the boiler feed lines of hydronic heating systems.

Combination fill valve and safety pressure relief valve
• Tight seating check valve
• Purge lever for manual purging
• High capacity
• Stainless steel strainer to protect the valve disc from fouling
• 100 psi working , 15 psi set and 30 psi relief valve setting
  
  

  B144-2

Mcdonnell & Miller 47-2 Mechanical Water Feeder, 3/4" NPT Threaded, 120/240 VAC

Continuous maintenance of minimum safe water level, independent of electrical service
• Proportional feed action
• Quick hook-up fittings provided
• Quick change replaceable cartridge valve and strainer
• Model 47 can be field upgraded with a No #2 switch to add low water cut-off function
  

Mcdonnell & Miller 310447 Blow-Down Ball Valve, 3/4", NPT

Full ported ball action valve
• PTFE seats provide bind free, leak tight ball movement
• Easy open handle keeps hands away from hot water and steam
• Gasket and mounting screws included
• For hot water and steam boilers

Sid Harvey Item #:B122-2: Replaces Part #:'s : 13552

Taco air scoop's special design and internal baffles of Taco air scoops slow water velocity to separate the air from solution. Thanks to this design, Taco air scoops efficiently remove air to provide noiseless, air-free hydronic heating, cooling or combination systems. They also provide an economic way to integrate air elimination by the connection of either a plain steel or diaphragm expansion tank.

1-piece cast iron construction
• Never requires any servicing
• Engineered baffle separates air from water
• Each air scoop has a vent connection on top for the installation of a 1/8" Taco 400-3 or 416-1 Hy-Vent and 1/2" bottom tapping for a diaphragm expansion tank
• The 1-1/2 - 4" air scoops also have an additional top tapping for the connection of a plain steel expansion tank
• Water or water/glycol media
  
  

  Taco B153-14

Taco air scoop's special design and internal baffles of Taco air scoops slow water velocity to separate the air from solution. Thanks to this design, Taco air scoops efficiently remove air to provide noiseless, air-free hydronic heating, cooling or combination systems. They also provide an economic way to integrate air elimination by the connection of either a plain steel or diaphragm expansion tank.

1-piece cast iron construction
• Never requires any servicing
• Engineered baffle separates air from water
• Each air scoop has a vent connection on top for the installation of a 1/8" Taco 400-3 or 416-1 Hy-Vent and 1/2" bottom tapping for a diaphragm expansion tank
• The 1-1/2 - 4" air scoops also have an additional top tapping for the connection of a plain steel expansion tank
• Water or water/glycol media 1>
  
  

  Taco B153-11

Bosch BVA-60WN1-M18 Air Handler

• 5 Ton 15 SEER Multi-Position Factory Installed TXV
• Multi-speed ECM blower motor.
• Factory-installed TXV metering.
• Multi-position Installation - upflow or horizontal right standard;
• field convertible to horizontal left or downflow.
• Multiple electrical entry locations.
• Field-installed electric heater kits 5, 7.5, 10, 15, 20KW available as an accessory.
• Dual front panel design for ease of maintenance.
• Blower and coil easy slide out for ease of maintenance.
• Fully-insulated cabinet design.
• Horizontal and vertical condensate drain pans standard.
• Condensate drain pan is polymer with UVC inhibitor.
• Primary and secondary condensate drain fittings.
• Factory-sealed cabinet certified to achieve 2% or less air leakage rate at 1.0" water column.
• Integrated filter rack with tool-less door access.
• AHRI and ETL Listed.,
  
  

Bell & Gossett B50-50 Circulator Pump Booster 1/20 HP

Watts Water B911S Bronze Combination Fill Valve Feeder and Backflow Preventer, 1/2" Sweat

Pre-assembled for ease of installation
• Easy service accessibility
• High capacity fill valve for quick system filling and purging
• All bronze body construction union solder x NPT connections
• Installed on the boiler feed line to provide make-up water to the boiler
• The valve shall contain a watts regulator model 9D backflow preventer and model 1156 feed water pressure regulator
  
  

  Watts Water B911S