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

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B146-21

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

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B146-20

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

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B146-19

Pardi EVA Vacuum Adapter Eliminator

EVA

Watts Regulators series LFN36 lead free water service VAC uum relief valves are used in water heater/tank applications to automatically allow air to enter into the piping system to prevent VAC uum conditions that could siphon the water from the system and damage water heater/tank equipment. It consists of a lead free brass body construction with NPT male inlet connection, and a protective cap. Series LFN36 has a low profile design, is tested and rated to ANSI Z21.22, and is CSA certified. It is suitable for low pressure steam and water service, and is ideal for use in domestic water heaters and supply tanks, table top heaters, jacketed steam kettles, unit heaters, low pressure steam systems, and steam coil heaters.

• Protective cap for automatic venting of a closed system to atmosphere when a VAC uum is created
• Suitable for low pressure steam and water service
• Permits air to enter and prevent VAC uum conditions that could siphon the water from the system, resulting in collapse of a tank or water heater or equipment burn out
• 302 stainless steel spring
• Polysulfone glass filled float
• Polypropylene cover
• 200 psi maximum working pressure

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N36-1/2LF

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N36-1/2LF

Cash Acme VR-801 VAC uum relief valve is designed to protect hot water supply systems and pressure vessels against negative pressure. It is especially well suited for many domestic and commercial systems. It works by preventing internal VAC uum conditions that could result in burned out heaters and/or collapsed storage tanks. Installed on the cold water supply line, the Cash Acme VR-801 closes tightly under pressure and opens at a 1" mercury VAC uum. Atmosphere admitted to the system breaks the VAC uum, preventing collapse of the storage tank.

• Drilled vent with dust cover
• Prevents internal VAC uum conditions - guards against siphonage, burnt-out heaters and collapsing of storage tanks and negative pressure
• Opens quickly in emergency situations on a one" mercury VAC uum
• Every valve is tested for performance prior to shipping
• Water service
• 1" Hg VAC uum relief pressure open
• Brass body cap and internal parts
• Stainless steel spring
• Polypropylene dust cover

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LFVR801

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LFVR801

Watts Regulators series LFN36 lead free water service VAC uum relief valves are used in water heater/tank applications to automatically allow air to enter into the piping system to prevent VAC uum conditions that could siphon the water from the system and damage water heater/tank equipment. It consists of a lead free brass body construction with NPT male inlet connection, and a protective cap. Series LFN36 has a low profile design, is tested and rated to ANSI Z21.22, and is CSA certified. It is suitable for low pressure steam and water service, and is ideal for use in domestic water heaters and supply tanks, table top heaters, jacketed steam kettles, unit heaters, low pressure steam systems, and steam coil heaters.

• Protective cap for automatic venting of a closed system to atmosphere when a VAC uum is created
• Suitable for low pressure steam and water service
• Permits air to enter and prevent VAC uum conditions that could siphon the water from the system, resulting in collapse of a tank or water heater or equipment burn out
• 302 stainless steel spring
• Polysulfone glass filled float
• Polypropylene cover
• 200 psi maximum working pressure

Sid Harvey Item #:N36-3/4: Replaces Part #:'s : R54-739,

N36-3/4

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N36-3/4

Honeywell Home HPZC103 Valve Controller 3-Zone

HPZC103

Honeywell Home HPZC104 Valve Controller 4-Zone

HPZC104

Watts LF70A-RK Valve Repair Kit For LF70A, LF70AT Hot Water Extender Tempering Valve Reduced Pressure Detector, 1/2 - 3/4"

• For standard temperature thermostat
• o-ring to prevent leaks

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Watts Water LF70A-RK

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LF70A-RK

925006-00 Heat-Timer Corporation

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Heat-Timer Corporation 925006-00

Watts Regulator lead free series LF150A water hammer arrestors are used in residential applications to control water pressure shock and prevent water hammer conditions. It consists of a pre-charged air chamber that is rechargeable, an air-tight sealing cap, standard tire valve connection for easy charging, stainless steel top, sealed-in diaphragm, lower stainless steel chamber, and brass hex adapter for easy installation. It can be installed in new or existing plumbing systems in any angle. Series LF150A is ideal for dishwashers, clothes washers, and quick-closing faucets.

• Pre-charged air chamber
• Sealed in diaphragm
• Complete stainless steel chamber construction
• Rechargeable

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LF150A1/2

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LF150A1/2