Taco air scoop's special design and internal baffles of Taco air scoops slow water velocity to separate the air from solution. Thanks to this design, Taco air scoops efficiently remove air to provide noiseless, air-free hydronic heating, cooling or combination systems. They also provide an economic way to integrate air elimination by the connection of either a plain steel or diaphragm expansion tank.

• 1-piece cast iron construction
• Never requires any servicing
• Engineered baffle separates air from water
• Each air scoop has a vent connection on top for the installation of a 1/8" Taco 400-3 or 416-1 Hy-Vent and 1/2" bottom tapping for a diaphragm expansion tank
• The 1-1/2 - 4" air scoops also have an additional top tapping for the connection of a plain steel expansion tank
• Water or water/glycol media

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Taco B153-11

Watts Water B911S Bronze Combination Fill Valve Feeder and Backflow Preventer, 1/2" Sweat

• Pre-assembled for ease of installation
• Easy service accessibility
• High capacity fill valve for quick system filling and purging
• All bronze body construction union solder 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

Sid Harvey Item #:B911S: Replaces Part #:'s : 2K412,
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Watts Water B911S

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

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Watts Water B911T

Bell & Gossett 100NFI In-Line Circulator Pump, 1/12 HP, 115 VAC , 0 - 33 gpm

• The shaft and seal are housed in an assembly that can be easily repaired or replaced
• This pump's motor design, coupled with its overall hydraulic performance, allows the Bell & Gossett series 100 to overcome system-related noise caused by valves, fittings or piping
• Resilient mounting provides quiet, dependable service with minimum annual lubrication
• Features a precision ground pump shaft is oversized to provide large bearing surfaces and a hardened integral thrust collar minimizes end-thrust to ensure long seal and bearing life
• Carbon steel shaft

Sid Harvey Item #:B51: Replaces Part #:'s : 3406,
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Bell & Gossett B51

Bell & Gossett B50-50 Circulator Pump Booster 1/20 HP,
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Bell & Gossett B50-50

Taco 007 Circulator Pump, 1/25 HP, 115 VAC , 23 gpm

• Standard high capacity output and compact design
• Quiet, efficient operation
• Direct drive, low power consumption
• Unique replaceable cartridge design-field serviceable
• Self lubricating, no mechanical seal
• Unmatched reliability, maintenance free
• Universal flange to flange dimensions and orientation allows the 0014 to easily replace other models
• Cartridge style, maintenance free, wet-rotor, in-line and single stage circulator pump
• Unique replaceable cartridge contains all of the moving parts and allows the circulator to be easily serviced instead of replacing the entire unit
• With integral flow check (IFC)
• For indoor use only

Sid Harvey Item #:B53-16: Replaces Part #:'s : 21351,
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Taco B53-16

Taco 008 Circulator Pump, 1/25 HP, 115 VAC , 14 gpm

• Standard high capacity output and compact design
• Quiet, efficient operation
• Direct drive, low power consumption
• Unique replaceable cartridge design-field serviceable
• Self lubricating, no mechanical seal
• Unmatched reliability, maintenance free
• Universal flange to flange dimensions
• For indoor use only

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Taco B53-15

Taco 006 Circulator Pump, 1/40 HP, 115 VAC , 11 gpm

• Standard high capacity output and compact design
• Quiet, efficient operation
• Direct drive, low power consumption
• Unique replaceable cartridge design-field serviceable
• Self lubricating, no mechanical seal
• Unmatched reliability, maintenance free
• Unique replaceable cartridge contains all of the moving parts and allows for easy service instead of replacing the entire circulator
• Compact, low power consumption design is ideal for high efficiency jobs
• With integral flow check and without flanges
• For indoor use only

Sid Harvey Item #:B53-14: Replaces Part #:'s : 39191,
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Taco B53-14

The patented Taco priority zoning circulator combines the reliability of the 00 circulator with the convenience and efficiency of a switching relay. With a built-in transformer, relay and priority switch, all the wiring is done directly to the circulator's PC board, making it ideal for adding a zone or an indirect hot water heater. Now available with optional integral flow check (IFC).

• Patented design patent #5,622,221
• 00 reliability
• Snap-in PC board
• Removable, quick-connect low VAC age terminal strip
• Optional Integral Flow Check (IFC)
• Simplified wiring
• LED power light
• 100% factory tested
• Works with other circulators or zone valves
• Universal thermostat compatibility
• Priority zoning

Sid Harvey Item #:B53-17: Replaces Part #:'s : 5W301,

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Taco B53-17

The high velocity series Taco 0012 Cartridge Circulator is designed for high flow/medium head applications in large residential/light commercial hydronic heating, radiant heating and chilled water cooling systems. The unique ACB anti-condensate baffle with ambient air flow prevents the build up of condensate on the motor windings when pumping chilled water. Its unique field-serviceable cartridge contains all moving parts. Replacing the cartridge rebuilds the circulator. With no mechanical seal, the self-lubricating, maintenance free design provides unmatched reliability. Compact and lightweight, with excellent performance characteristics, the 0012 is ideal for high efficiency jobs where space is a premium. Available in cast iron or stainless steel construction.

• Exclusive ACB anti-condensate baffle with ambient air flow-protects motor windings against condensate buildup
• High velocity performance - compact design
• Quiet, efficient operation
• Direct drive - low power consumption
• Unique replaceable cartridge design - field serviceable
• Self-lubricating
• No mechanical seal
• Unmatched reliability, maintenance free
• Universal flange to flange dimensions
• Ceramic shaft
• Carbon bearings, stainless Steel cartridge, aluminum stator housing
• EPDM o-ring and gaskets

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Taco B53-31

The high velocity series 0010-IFC includes an Integral Flow Check, saving installation costs while improving system performance. The removable, spring-loaded IFC replaces a separate in-line flow check and prevents gravity flow when the circulator is not operating. Available in cast iron or stainless steel construction.

• Includes Integral Flow Check (IFC)
• Prevents gravity flow
• Eliminates separate in-line flow check
• Reduces installed costs, easy to service
• Improved performance vs standard in-line flow check
• Unique replaceable cartridge design - field serviceable
• Unmatched reliability, maintenance free
• Quiet, efficient operation
• Direct drive - low power consumption
• Self-lubricating, no mechanical seal
• Standard high capacity output, compact design
• Acetal body plunger
• Aluminum stator housing, stainless steel cartridge, ceramic shaft, carbon bearing, EPDM o-ring and gaskets

Sid Harvey Item #:B53-27: Replaces Part #:'s : 5W305,
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Taco B53-27

The high velocity series Taco 009 cartridge circulator is designed for quiet, efficient operation in higher-head/lower-flow applications for hydronic heating, radiant in-floor/panel heating, solar heating, heat recovery and domestic water recirculation systems. Its unique field-serviceable cartridge contains all moving parts. Replacing the cartridge rebuilds the circulator. With no mechanical seal, the self-lubricating, maintenance free design provides unmatched reliability. Available in cast iron or stainless steel construction.

• Standard high capacity output, compact design
• Quiet, efficient operation
• Direct drive - low power consumption
• Unique replaceable cartridge design - field serviceable
• No mechanical seal
• Self-lubricating
• Unmatched reliability, maintenance free
• Universal flange to flange dimensions
• Stainless steel cartridge, ceramic shaft, carbon bearings, EPDM O-ring and gaskets

Sid Harvey Item #:B53-25: Replaces Part #:'s : 21341,
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Taco B53-25