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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 coalescing medium
Sid Harvey Item #:B156-21: Replaces Part #:'s : L38-434,

Spirotherm B156-21

,

B156-21

Item#:
B156-21
Manufacturer Item:
VJR075TM
Manufacturer:
SPIROTHERM INC
Spirotherm VJS100TM Spirovent Junior Microbubble VJS Air Eliminator 1" Sweat 150 PSI,

VJS100TM

,

Spirotherm VJS100TM

Item#:
VJS100TM
Manufacturer Item:
VJS100TM
Manufacturer:
SPIROTHERM INC
Item#:
VJV125FT
The Resideo SuperVent, purges air through a no clog vent assembly, to control dirt and debris and minimize air vent fouling in Hydronic heating systems, while eliminating the need for bleeding.
  • No clog vent
  • Dirt and debris resistant
  • 360 deg adjustable collar ring for installation flexibility
  • Stainless steel concentrator which eliminates gurgling noise
  • Bronze body for rigid construction
Sid Harvey Item #:PV150: Replaces Part #:'s : R55-621,

PV150

,

PV150

Item#:
PV150
Manufacturer Item:
PV150
Manufacturer:
HONEYWELL
Resideo PV125 Supervent Air Eliminator 1-1/4" FPT,

Honeywell PV125

,

PV125

Item#:
PV125
Manufacturer Item:
PV125
Manufacturer:
HONEYWELL
Resideo PV125S Supervent Air Eliminator 1-1/4" OD,

Honeywell PV125S

,

PV125S

Item#:
PV125S
Manufacturer Item:
PV125S
Manufacturer:
HONEYWELL
Resideo PV100 Supervent Air Eliminator 1" FPT,

Honeywell PV100

,

PV100

Item#:
PV100
Manufacturer Item:
PV100
Manufacturer:
HONEYWELL
Resideo PV100S Supervent Air Eliminator 1" OD,

Honeywell PV100S

,

PV100S

Item#:
PV100S
Manufacturer Item:
PV100S
Manufacturer:
HONEYWELL
Taco Flo-Checks prevent gravity circulation in forced hot water heating systems during periods when the boiler is hot, but the space heating zone is not wanted. This makes it possible to use the heating boiler to maintain domestic hot water year-round. You can also use Flo-Checks in systems with multiple circulator zones to allow heat to flow only into the zones that are calling for heat. In addition, the thumb screw can be opened manually for gravity feed applications, if the main circulator stops operating.
  • 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
Sid Harvey Item #:B146-22: Replaces Part #:'s : 21428,

Taco B146-22

,

B146-22

Item#:
B146-22
Manufacturer Item:
221-6
Manufacturer:
TACO INC.
Taco Flo-Checks prevent gravity circulation in forced hot water heating systems during periods when the boiler is hot, but the space heating zone is not wanted. This makes it possible to use the heating boiler to maintain domestic hot water year-round. You can also use Flo-Checks in systems with multiple circulator zones to allow heat to flow only into the zones that are calling for heat. In addition, the thumb screw can be opened manually for gravity feed applications, if the main circulator stops operating.
  • 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
Sid Harvey Item #:B146-21: Replaces Part #:'s : 4031,

Taco B146-21

,

B146-21

Item#:
B146-21
Manufacturer Item:
220-6
Manufacturer:
TACO INC.
Taco flo-cheks have dependably stopped gravity circulation in forced hot water heating systems for over 40 years. Flo-cheks open automatically when the circulator starts running. They 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.
  • 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
Sid Harvey Item #:B146-20: Replaces Part #:'s : HYD160-B146-20 | 4030 |,

Taco B146-20

,

B146-20

Item#:
B146-20
Manufacturer Item:
218-3
Manufacturer:
TACO INC.
Taco flo-cheks have dependably stopped gravity circulation in forced hot water heating systems for over 40 years. Flo-cheks open automatically when the circulator starts running. They 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.
  • 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
Sid Harvey Item #:B146-19: Replaces Part #:'s : 21426,

Taco B146-19

,

B146-19

Item#:
B146-19
Manufacturer Item:
219-4
Manufacturer:
TACO INC.
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