The number 7 series Auto-Vents are reliable, automatic air eliminating valves for concealed radiators, pipe lines, tanks and other devices where water or liquids are used for heating and cooling. They have proven to be the solution to problems that have confronted engineers and contractors in which air pockets or traps retard the free circulation of the liquids and reduce the efficiency of the system or appliance. The numer 7 series Auto-Vents air eliminators are made of brass and equipped with a self-closing, float-operated valve. The valve is equipped with a monel metal spring and a neoprene valve seat which is unaffected by high temperatures, oil and anti-freeze. No air chamber is required. The vent is regularly fitted with a patented cap that may be used as a check in case of a leak caused by core sand or scale.

• Vertical mounting
• They vent air continuously and help your system work at peak efficiency

Sid Harvey Item #:B157: Replaces Part #:'s : L37-205,
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B157

Honeywell TR21-A White Plastic Non-Linear Temperature Wall Module, 55 - 85,
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honeywell tr21-a

Cooper-Atkins DM-120S Back Flange Back Connect Digital Panel Mount Thermometer 2''

DM-120S

Watts Water B911P Back Flow Preventer 1/2" Pro-Press,

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Apollo Valves 356H3BF Backflow Preventer 1/2" Union Solder x FPT
The Apollo model FFB combination backflow preventer and fast fill pressure regulator is designed to protect residential and commercial potable water supply lines from back-siphonage or backpressure on hot water heating boilers. An intermediate atmospheric vent ensures positive protection from backflow conditions. The pressure regulator provides boiler make up water at the desired pressure and includes a purge/quick fill feature.

• Designed for continuous pressure
• Independently acting check valves
• In-line replaceable cartridge
• Purge lever/high capacity fast fill feature
• No steel cage screws
• Factory pre-set at 15 psig - adjustable 10 to 25 psig
• Made in USA
• Feed water pressure regulator brass adjustment screw, steel and Zn plated spring, bronze housing, steel, zinc plated lever
• Dual check with atmospheric port: EPDM seat discs and o-rings, glass-filled Noryl seats and poppets, glass-filled Noryl spring and seat retainer, stainless steel springs

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356H3BF

Caleffi 573016A Backflow Preventer and AutoFill Combination 1/2" Press W/Gauge

573016A

Caleffi 573017A Backflow Preventer and AutoFill Combination 1/2" Press x FPT W/Gauge
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573017A

Caleffi 573019A Backflow Preventer & AutoFill Combination W/Pressure Gauge

573019A

Pressure regulating valve for automatic control of boiler feed water and other pressure reducing applications. Especially constructed for expansion tank mounting.

• Fast fill feature
• Built-in check valve
• Fill valve has 1/2" internal NPT threads and external union threads on both input and output sides
• 1/4" NPT port on side for optimal gauge
• Manual shut off valve on bottom
• Includes union nut, sweat and threaded tailpiece

Sid Harvey Item #:FM911: Replaces Part #:'s : R55-623,
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Resideo Braukmann FM911

Watts regulators series 009 reduced pressure zone assemblies prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure. It consists of bronze body construction 1/4 - 2" or FDA approved epoxy coated cast iron 2-1/2 - 3", 2 in-line independent check valves, replaceable check seats with an intermediate relief valve, and ball valve test cocks. Series 009 is ideal for protection of health hazard cross-connections or for containment at the service line entrance.

• Single access cover and modular check construction for ease of maintenance
• Top entry - all internals immediately accessible
• Captured springs for safe maintenance
• Internal relief valve for reduced installation clearances
• Replaceable seats for economical repair
• Bronze body construction for durability
• Ball valve test cocks - screwdriver slotted
• Large body passages provides low pressure drop
• Compact, space saving design
• No special tools required for servicing
• 1/4-turn ball valve

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009QT-1/2

Watts regulators series 009 reduced pressure zone assemblies prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure. It consists of bronze body construction 1/4 - 2" or FDA approved epoxy coated cast iron 2-1/2 - 3", 2 in-line independent check valves, replaceable check seats with an intermediate relief valve, and ball valve test cocks. Series 009 is ideal for protection of health hazard cross-connections or for containment at the service line entrance.

• Single access cover and modular check construction for ease of maintenance
• Top entry - all internals immediately accessible
• Captured springs for safe maintenance
• Internal relief valve for reduced installation clearances
• Replaceable seats for economical repair
• Bronze body construction for durability
• Ball valve test cocks - screwdriver slotted
• Large body passages provides low pressure drop
• Compact, space saving design
• No special tools required for servicing
• 1/4-turn ball valve

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009QT-3/4