Amtrol 443 Cast Iron In-Line Air Purger, 1", 125 psig 4" W x 6" H

• Separates air from water in closed loop hydronic heating system
• System connection sets the point of no pressure change
• 1-year warranty
• 1/8" NPT top tapping, 1/2" bottom tapping

Sid Harvey Item #:B135-80: Replaces Part #:'s : 21440,
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Amtrol Parts B135-80

Amtrol Parts B135-80

Amtrol 445 Cast Iron Air Purger, 1-1/2", 125 psi, 4" W x 6" H

• Separates air from water in closed loop hydronic heating system
• System connection sets the point of no pressure change
• 1-year warranty
• 1/8" NPT top tapping, 1/2" bottom tapping
  
  Sid Harvey Item #:B135-81: Replaces Part #:'s : 21441,
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  Amtrol Parts B135-82

  
  

  Amtrol Parts B135-82

Amtrol 444 Cast Iron Air Purger, 1-1/4", 125 psi, 4" W x 6" H

• Separates air from water in closed loop hydronic heating system
• System connection sets the point of no pressure change
• 1-year warranty
• 1/8" NPT top tapping, 1/2" bottom tapping
  
  Sid Harvey Item #:B135-81: Replaces Part #:'s : 21441,
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  Amtrol Parts B135-81

  
  

  Amtrol Parts B135-81

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

Amtrol Parts B135-68

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

Amtrol Parts B135-60

Amtrol Parts Diaphragm Expansion Tank 4.4 Gallon 1/2" NPTM 100 psig 30 Lbs.s

Amtrol Parts B135-61

Bell & Gossett B138-LF F3 Brass Dual Unit Valve 1/2" NPT 30 PSI Relief x 12 PSI Reducing

Bell & Gossett B138-LF

Bell & Gossett B138-LF

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

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
  
  

  Amtrol Parts B135-41

Amtrol Parts Diaphragm Type Expansion Tank 2 Gallon 1/2" MPT 15 Lbs.s.

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
• 1 Gallon maximum acceptance volume
• Made in USA
• 13" H x 8" Diameter
  
  

  Amtrol Parts B135-40

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

Sid Harvey Item #:B144-1: Replaces Part #:'s : 2K402,
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Watts Water B144-1

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 Water B121-1

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

Sid Harvey Item #:B144-2: Replaces Part #:'s : R54-740,
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Watts Water B144-2

Watts Water B144-2