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Noisy pipes, valves, and other air-related noises are often accepted as the signs of a functioning system. Excessive pump noise, cavitation, and cascading in terminal units are considered normal. But air in system water can cause corrosion, reduced efficiency, poorly heated or inadequately cooled rooms, accelerated component wear and on-going complaints. There is a device that will keep your system free of air permanently. Less maintenance, quiet operation, fewer costs!. Unlike conventional air eliminators or air scoops, the Spirovent completely eliminates 100% of the free air, 100% of the entrained air, and up to 99.6% of the dissolved air in the system. Consisting of woven copper wire soldered to a copper tube, the patented Spirotube creates a low velocity area in the Spirovent that scrubs the bubbles from the water. The air bubbles rise and collect in the air chamber before they are vented from the system via an integral automatic valve. Air problems become a thing of the past.
    Maintenance free
  • No venting required
  • Vent head is designed to stay dry, dirt and leak resistant
  • 1/2" male thread port for pressure testing or remote venting of unwanted gases
  • Quiet operation
  • Increased component life
  • Reduced oxygen based corrosion and pump cavitation
  • The automatic air vent is guaranteed not to leak and can only be closed by the installer for a pressure test
  • The air chamber has been designed so that dirt cannot reach the valve
  • Large capacity collection chamber reduces the need for frequent draining
  • Drain valve for flushing out the dirt
  • Brass vent head
  • Non-ferrous float
  • ViTon seal and o-ring
  • Copper cOverall Lengthescing medium

    Spirotherm B156-22

Item#:
B156-22
Manufacturer Item:
VJR100TM
Manufacturer:
SPIROTHERM INC
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
  • Water seal of high temperature resisting material isolates spring working parts from water during relief

    Watts Water B145-5

Item#:
B145-5
Manufacturer Item:
0382570
Manufacturer:
WATTS REGULATOR CO
Noisy pipes, valves, and other air-related noises are often accepted as the signs of a functioning system. Excessive pump noise, cavitation, and cascading in terminal units are considered normal. But air in system water can cause corrosion, reduced efficiency, poorly heated or inadequately cooled rooms, accelerated component wear and on-going complaints. There is a device that will keep your system free of air permanently. Less maintenance, quiet operation, fewer costs!. Unlike conventional air eliminators or air scoops, the Spirovent completely eliminates 100% of the free air, 100% of the entrained air, and up to 99.6% of the dissolved air in the system. Consisting of woven copper wire soldered to a copper tube, the patented Spirotube creates a low velocity area in the Spirovent that scrubs the bubbles from the water. The air bubbles rise and collect in the air chamber before they are vented from the system via an integral automatic valve. Air problems become a thing of the past.
    Maintenance free
  • No venting required
  • Vent head is designed to stay dry, dirt and leak resistant
  • 1/2" male thread port for pressure testing or remote venting of unwanted gases
  • Quiet operation
  • Increased component life
  • Reduced oxygen based corrosion and pump cavitation
  • The automatic air vent is guaranteed not to leak and can only be closed by the installer for a pressure test
  • The air chamber has been designed so that dirt cannot reach the valve
  • Large capacity collection chamber reduces the need for frequent draining
  • Drain valve for flushing out the dirt
  • Brass vent head
  • Non-ferrous float
  • ViTon seal and o-ring
  • Copper cOverall Lengthescing medium

    Spirotherm B156-21

Item#:
B156-21
Manufacturer Item:
VJR075TM
Manufacturer:
SPIROTHERM INC
Taco boiler feed valves automatically feed water to a system whenever pressure in the system drops below the pressure setting of the valve. The dual control models combine the boiler feed with an in-line pressure relief valve. The built-in check prevents emptying the system if incoming pressure falls. They feature fast fill rates and an exclusive, lockable fast fill lever. Each valve is adjustable from10 to 25 psi, has a built-in check to prevent the emptying of the system if incoming pressure fails, and the easy to use fast fill lever is lockable.
    Fast fill rate
  • Exclusive fast fill lever lock
  • Built-in check to prevent emptying the system if incoming pressure fails
  • Pressure setting adjustment separated from fast fill lever for easy, fast adjustment
  • 100 psi maximum supply side pressure, 30 psi relief valve setting, 12 psi factory setting

    Taco B143-12

Item#:
B143-12
Manufacturer Item:
334-T3
Manufacturer:
TACO INC.
Bell & Gossett B-38 Cast Brass Pressure Reducing Valve, 1/2", NPT, 10 - 25 psig
    Fast fill feature reduces start-up time and labor
  • Low inlet pressure check valve help prevent loss of system pressure if the supply water drops below system pressure
  • Convenient cleanable strainer is designed to prevent dirt and sediment from entering the system
  • Brass body construction is highly resistant to corrosion-ideal for water systems
  • Reducing valves protect heating and plumbing systems against excessive line pressures
  • Equipped with built-in-strainer and low inlet pressure check valve
  • They are factory set at specified limits although adjustment is easily made
  • Construction - cast brass body, with special insert diaphragm, EPDM check valve, brass seat, brass with EPDM insert stem, brass valve plate, stainer and strainer nut wetted parts and steel non-wetted parts

    Bell & Gossett B138-8A

Item#:
B138-8A
Manufacturer Item:
110190
Manufacturer:
BELL & GOSSETT ITT
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

    Watts Water B144-2

Item#:
B144-2
Manufacturer Item:
0388805
Manufacturer:
WATTS REGULATOR CO
Watts Regulators series 174A boiler pressure relief valves are used in hot water heating and domestic supply boiler applications to protect against excessive pressures on all types of hot water heating supply boiler equipment. It consists of a bronze body construction with NPT threaded female inlet and NPT threaded female outlet drain connections, non-metallic disc-to-metal seating, stainless steel spring, and test lever. Series 174A resists corrosive water conditions, 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.

Watts Water B145

Item#:
B145
Manufacturer Item:
0274428
Manufacturer:
WATTS REGULATOR CO
Amtrol Parts 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


Amtrol Parts B135-82

Item#:
B135-82
Manufacturer Item:
445-1
Manufacturer:
AMTROL INC
Watts Regulator series 374A boiler pressure relief valves are used in hot water boiler applications to protect against excessive pressure on all types of hot water heating boiler equipment. It consists of an iron body construction with forged bronze inlet connections, non-metallic disc-to-metal seating, stainless steel spring, and test lever. Series 374A resists corrosive water conditions, 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 forged brass inlet
  • Seat located above drain, water cant be trapped and sediment cant 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
  • Non-metallic disc-to-metal seating
  • Bronze inlet wetted parts

    Watts Water B145-9A

Item#:
B145-9A
Manufacturer Item:
0353030
Manufacturer:
WATTS REGULATOR CO
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

Item#:
B144-1
Manufacturer Item:
0388798
Manufacturer:
WATTS REGULATOR CO
Noisy pipes, valves, and other air-related noises are often accepted as the signs of a functioning system. Excessive pump noise, cavitation, and cascading in terminal units are considered normal. But air in system water can cause corrosion, reduced efficiency, poorly heated or inadequately cooled rooms, accelerated component wear and on-going complaints. There is a device that will keep your system free of air permanently. Less maintenance, quiet operation, fewer costs!. Unlike conventional air eliminators or air scoops, the Spirovent completely eliminates 100% of the free air, 100% of the entrained air, and up to 99.6% of the dissolved air in the system. Consisting of woven copper wire soldered to a copper tube, the patented Spirotube creates a low velocity area in the Spirovent that scrubs the bubbles from the water. The air bubbles rise and collect in the air chamber before they are vented from the system via an integral automatic valve. Air problems become a thing of the past.
    Maintenance free
  • No venting required
  • Vent head is designed to stay dry, dirt and leak resistant
  • 1/2" male thread port for pressure testing or remote venting of unwanted gases
  • Quiet operation
  • Increased component life
  • Reduced oxygen based corrosion and pump cavitation
  • The automatic air vent is guaranteed not to leak and can only be closed by the installer for a pressure test
  • The air chamber has been designed so that dirt cannot reach the valve
  • Large capacity collection chamber reduces the need for frequent draining
  • Drain valve for flushing out the dirt
  • Brass vent head
  • Non-ferrous float
  • ViTon seal and o-ring
  • Copper cOverall Lengthescing medium

    Spirotherm B156-23

Item#:
B156-23
Manufacturer Item:
VJR125TM
Manufacturer:
SPIROTHERM INC
Watts Water B911 Bronze Combination Fill Valve Feeder and Backflow Preventer, 1/2" Threaded
    Pre-assembled for ease of installation
  • Easy service accessibility
  • High capacity fill valve for quick system filling and purging
  • All bronze body construction union NPT 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 B911T

Item#:
B911T
Manufacturer Item:
0386463
Manufacturer:
WATTS REGULATOR CO
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