During filling, maintenance of or through oxygen infiltration, air is introduced into every hydronic heating/cooling system. To function properly, the air must be eliminated. These air eliminators, manufactured by Sparco Inc., are designed to remove trapped air, micro bubbles and dirt from heating, cooling and domestic water systems.

Gold Top Air Vent
	Sparco has reinvented the vent! Air vents have been removing air from heating and cooling systems for decades. Some were better than others. Many stopped after initial filling. No one has, up to now, been able to design a low cost vent that performs at both low and high pressures. It was always one or the other. Sparco's revolutionary patent pending fulcrum design offers a venting rate of 3-4 times that of other products. It works when others stop venting at higher pressures. The GoldTop is field serviceable, offers convenient, one-fits-all concept and is competitively priced.
Model # Description Max. Pressure Dimensions Price & Quantity FV 180 1/8" NPT 150 psi 3.25" x 1.85" $18.29 FV 180 A 1/4" NPT 150 psi 3.25" x 1.85" $18.28

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Floatvent, Supervent, Maxivent
Floatvent FV 183	Supervent SV 173	Maxivent FV 147/147A
The Sparco Floatvent is an efficient automatic vent with high venting capacity. It removes trapped air that prevents free circulation of liquids and restores maximum performance of the system. Floatvents are used for continuous venting of hot water and chilled water cooling systems. The Floatvent removes air from tanks, radiators, pipelines, radiant panels, unit heaters and systems. The Maxivent features a low profile, fit anywhere solid brass body and cover, and a high temperature polypropylene float. The Supervent has a high venting capacity and incorporates a check valve.
Model # Description Maximum Pressure Dimensions Price & Quantity FV 147 1/8 NPT 150 psi 2" x 1.43" $10.29 FV 147A 1/4 NPT 150 psi 2" x 1.43" $10.28 FV 183 3/4" NPT 150 psi 3.5" x 1.37" $46.87 SV 173 3/8 NPT with check 150 psi 2.86" x 2.04" $86.15

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Hygrovent
HV 190	The Sparco Hygrovent is an automatic air vent for hot water and steam systems. Install in baseboards, radiators, convectors and high points in piping systems to remove air. The nickel plated valve has a quick venting design and a positive shut-off ball check. Note: These units must be installed vertically
Model # Description Maximum Pressure Max Temp. Length Price & Quantity Water Steam HV 190 1/8" automatic vent 125 psi 10 psi 240°F 1.22" $7.92

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Stamped Sparco or Honewell on side

Air Purger
Model #	Size	Connection	Max Temp.	Max Pressure	Dimensions	Price & Quantity
AP 400	1"	bottom 1/2", top 1/8"	275°F	125 psi	4" x 2.5" x 1"	$27.49
AP 401	1-1/4"	bottom 1/2", top 1/8"	275°F	125 psi	4" x 2.5" x 1"	$27.76

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NPT Powervent

During filling, maintenance or through oxygen infiltration, air is introduced into every hydronic heating/cooling system. To function properly, the air must be eliminated. The Sparco Powervent slows the velocity of the water in its enlarged chamber, where the water impacts onto a stainless steel dynamic concentrator. The concentrator merges bubbles and microbubbles, which then float to the top from where they are vented to the outside. The high capacity vent keeps the water level below the venting point for a clean vent nozzle. The GoldTop venting mechanism (patent pending) offers the largest venting rate at pressures up to 150 psi.

Sweat Powervent

Residential Unit Features: Guarantees fast startups and eliminates "No Heat" call backs Helps prevent corrosion of system by air elimination Fully serviceable, top to bottom Low pressure drop, high Cv bi-directional flow Universal design 3/4" - 1 1/2" for vertical risers Sweat connections for sizes 3/4" x 1 1/4" Bronze/stainless construction. 3 year warranty. Made in USA Best venting performance in high and low pressure systems with GoldTop vent mechanism 1/2" bottom connection for Sparco expansion tank, or connect blow-down valve in dirty systems for dirt removal Dynamic concentrator has three times more air collection power than the static devices

Universal Powervent

Powervent Gold - Residential
Model #	Description	Max temp	Max pressure	Cv	Price & Quantity
PV075	3/4" NPT	240°F	125 psi	13	$146.87
PV100	1" NPT	240°F	125 psi	22	$162.11
PV125	1-1/4" NPT	240°F	125 psi	38	$223.38
PV150	1-1/2" NPT	240°F	125 psi	53	$297.70
PV200	2" NPT	240°F	125 psi	95	$272.88
PV075S	3/4" sweat	240°F	125 psi	13	$149.28
PV100S	1" sweat	240°F	125 psi	22	$160.58
PV125S	1-1/4" sweat	240°F	125 psi	38	$222.68
PVU075	3/4" universal	240°F	125 psi	12	$168.11
PVU100	1" universal	240°F	125 psi	21	$173.03
PVU125	1-1/4" universal	240°F	125 psi	36	$226.53
PVU150	1-1/2" universal	240°F	125 psi	50	$344.83

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Commercial Unit Features: Guarantees fast startups and eliminates "No Heat" call backs Helps prevent corrosion of system by air elimination GoldTop vents on 2-8" units include check valves Low pressure drop, high Cv bi-directional flow 3 year warranty. Made in USA Best venting performance in high and low pressure systems All models have bottom 3/4" NPT connections for system dirt removal Dynamic concentrator has three times more air collection power than the static devices

PV200T

Powervent Gold - Commercial
Model #	Description	Max temp	Max pressure	Cv	Price & Quantity
PV200T	2" NPT	240°F	150 psi	95	$2497.16
PV250T	2-1/2" NPT	240°F	150 psi	140	$2736.84
PV300T	3" NPT	240°F	150 psi	215	$2827.51
PV400T	4" NPT	240°F	150 psi	360	$3036.20
PV200F	2" flanged	240°F	150 psi	95	$2849.09
PV250F	2-1/2" flanged	240°F	150 psi	140	$3156.74
PV300F	3" flanged	240°F	125 psi	215	$2799.87
PV400F	4" flanged	240°F	125 psi	360	$3321.20
PV500F	5" flanged	240°F	125 psi	590	$6117.18
PV600F	6" flanged	240°F	125 psi	860	$6620.19
PV800F	8" flanged	240°F	125 psi	1500	$11785.60
PV200FC	2" flanged cleanable	240°F	125 psi	95	$4167.07
PV250FC	2-1/2" flanged cleanable	240°F	150 psi	140	$6132.21
PV300FC	3" flanged cleanable	240°F	125 psi	215	$7967.56
PV400FC	4" flanged cleanable	240°F	125 psi	360	$6299.99
PV500FC	5" flanged cleanable	240°F	125 psi	590	$10546.89
PV600FC	6" flanged cleanable	240°F	125 psi	860	$10207.89
PV800FC	8" flanged cleanable	240°F	125 psi	1500	$14953.76

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EA122A Automatic Air Vent for Non-Heating System Applications
	This automatic air vent features: Includes removable float/valve assembly for easy servicing. Not for use in steam systems. Body, cover and float assembly made of thermoplastics. Internal parts made of corrosion-resistant and chemical-resistant materials for use with water systems containing light concentrations of propylene glycol, mineral oils, or petroleum-based oils. Oil resistant seal. NBR seat disc and O-ring. Maintains quiet and efficient operation. Built-in brass shutoff valve for servicing without system shutdown. Built-in vacuum breaker. Leakage guard safeguards operation.
Model # Description Price & Quantity EA122A1028 Automatic air vent with built-in shut off valve; EPDM seat disc and O-ring. 1/8" NPT male thread, 90 psi max. $43.65

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"Can the hygrovent automatic air vents be installed horizontally?" No, these units must be installed vertically.

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