Engineered for reliability, The Taco Heat Motor Power Head provides a time proven method for operation of hydronic zone valves. The exclusive heat motor design operates silently, while the twist off head allows for serviceability without disturbing system connections. This power head is 24 VAC powered with an isolated end switch.

• Isolated end switch
• 24 VAC powered
• For Taco series 570 zone valves (570, 571, 572, and 573)
• Allows for service of valve without removing it

The VR-801 Vacuum Relief Valve is designed to protect hot water supply systems and pressure vessels against negative pressure. Installed on the cold water supply line, the Cash Acme VR-801 closes tightly under pressure and opens at a 1 in. mercury vacuum. Atmosphere admitted to the system breaks the vacuum, preventing collapse of the storage tank.

• Brass body
• Silicone seat disc
• Prevents internal vacuum conditions
• Guards against siphonage
• Opens quickly in emergency situations
• Every valve is tested for performance prior to shipping

This non-potable water expansion tank is designed for use in commercial and residential closed loop hydronic heating system piping to control the thermal expansion of hot water and maintain system pressure below the relief setting of the relief valve. This carbon steel tank is pre-charged at 12 PSI, tank volume is 4.5 gal. and features a durable expansion membrane that prevents contact of the water with the air in the tank. This rugged butyl diaphragm minimizes loss of the air change and ensures long and trouble-free life for the system. This tank is made of carbon steel with epoxy , mounts to supply piping, 1/2 in. MNPT system connection and a 0.302-32 in. charging valve connection (standard tire valve) to facilitate on-site charging of the tank to meet system requirements. The maximum working pressure is 75 PSI (5.3 BAR).

• 4.5 gal. tank
• Rugged flexible butyl diaphragm
• Inline and free standing models
• Steel construction
• Precharged to 12 PSI
• Max. Pressure 75 PSI
• Durable expansion membrane prevents contact of water with the air in the tank
• Carbon steal with epoxy
• Commercial and residential applications
• 1/2 in. MNPT system connection

This 1/2 inch bronze combination fill valve and backflow preventer is for use in commercial and residential hydronic heating systems to provide make-up water to the boiler, and prevent backflow when supply pressure falls below system pressure. It consists of a bronze backflow preventer, model 9D and a bronze feed water pressure regulator, model 1156F, in one pre-assembled unit. The high capacity fill valve provides quick system filling and purging. It is designed for use in the boiler feed lines of hydronic heating systems and has 1/2 inch union NPT inlet x NPT threaded outlet connections. The maximum pressure is 100 psi (6.9 bar).

• Bronze body for durability
• Threaded connections
• Strainer screen
• Horizontal or vertical installation
• Maximum pressure is 100 psi
• One pre-assembled unit of fill valve and backflow preventer

Nibco ACR Copper Coupling

• 0.5" Tubing
• Dezincification Resistant
• NFPA 99 Healthcare Facilities Gas And Vacuum Systems And The Compressed Gas Association, Pamphlet G4.1 (Medical Gas)
• With Stop
• Mfg #039923306944
• 0.5" Tubing
• Dezincification Resistant
• NFPA 99 Healthcare Facilities Gas And Vacuum Systems And The Compressed Gas Association, Pamphlet G4.1 (Medical Gas)
• With Stop

• Incorporates a cast iron housing, three speed motor (Low/Med/High) and a built-in, removable check valve
• Pump's performance parameters cover nearly all traditional heating applications- from radiant and baseboards, to fan coils and zoning and many others
• 3 speeds allow to set up the circulator pump in a way that matches the system's requirements
• Wet rotor design allows it to be virtually silent while operating

All the features you trust from the original Isolator Uni-Flange ball valve, plus a 360 degree rotating flange that allows for orientation to any degree necessary for your installation. This forged brass full port ball valve features a blow-out proof stem, adjustable packing glands and a stainless steel snap ring for extra stability during installation. The only way to isolate circulator pumps.

• Conical inlet to minimize turbulence
• Replaces 3-components, eliminates 2-leak paths, saves approximately 20 minutes in labor
• Fits virtually any standard circulator pump
• Available with slotted holes for high velocity pumps
• Prevents electrolysis
• Eliminates galvanic corrosion

The 007-IFC features a unique replaceable cartridge that is field serviceable. It's removable Integral Flow Check is designed to improve pump performance, simplify piping and reduce installation costs. The spring-loaded IFC replaces a separate in-line-flow check to ensure protection against reverse flow and gravity flow in your heating system.

• Replaceable cartridge
• Removeable integral flow check
• Quiet efficient operation
• Self-lubrication

All HAYDON baseboard heating systems are manufactured to provide many years of trouble-free, safe, silent and economical heat distribution. Hot water baseboard systems generate naturally converted heat that rises gently, warming walls and blocking drafts, providing uniform heat throughout a home's entire perimeter. HAYDON's system operates smoothly and silently. With hot air, you constantly hear and feel fan on, heat on, draft, fan off, heat off. Slim and unobtrusive, the low profile Model 750s BTU output is ideal for efficient, economical residential installations. This HAYDON Wall Trim is used to connect two HAYDON Baseboard Heaters together for a seamless finish.

• Enclosure top-back panel: fabricated from 1-piece of sturdy pre-painted cold rolled steel designed for efficient air flow, with uniform surfaces and no dust-collecting cutouts
• Fingertip positional damper: special hinging mechanism allows for finger-tip control, closes shut to keep out dust or opens wide for maximum heat output, damper deflects air into room, for better heating distribution
• High strength brackets: die-formed from 1 piece of heavy gauge steel designed to strengthen the enclosure and protect the heating element against damage special notches hold the heating element to allow for quiet expansion won't break or bend, cannot pop out of place, a turn of the wrist removes the twist slide brackets, for easy location during installation
• Noiseless element: aluminum fins are mechanically fastened to copper tubing to insure maximum heat transfer, elements have an expanded end for easy sweat connections without coupling
• Silent glide expansion tracks: 2-unique polyethylene silent glide tracks eliminate expansion and contraction noises
• Wall trim: used as a connector between 2 baseboard overs

2-way on-off low voltage valves consist of an actuator and valve assembly for controlling the flow of hot water. Manual opener (on all models, except straight-through, normally open valves) for valve operation on power failure; valve returns to automatic position when power is restored. All models may be installed without disassembling the valve.

• Compact construction for easy installation
• Complete powerhead may be removed or replaced without breaking plumbing line connections or draining the system
• Actuator motor may be replaced without removing the valve body or draining the system
• Use this valve in closed loop hydronic systems that do not contain dissolved oxygen in system water, such as fresh water from frequent source of makeup water

Danfoss Aveo Sensors, Electronic, Sensor type. Easy To Use. Thermostatic Radiator Valve. Built in Tamper Proof. 015G4290. Mfg #015G4290

• Easy To Use
• Thermostatic Radiator Valve
• Built in Tamper Proof
• 015G4290

2-way on-off low voltage valves consist of an actuator and valve assembly for controlling the flow of hot water. Manual opener (on all models, except straight-through, normally open valves) for valve operation on power failure; valve returns to automatic position when power is restored. All models may be installed without disassembling the valve.

• Compact construction for easy installation
• Complete powerhead may be removed or replaced without breaking plumbing line connections or draining the system
• Actuator motor may be replaced without removing the valve body or draining the system
• Patent no. 5,988,201
• Light weight
• Proven durability
• Easy to install
• No clog vent
• 360 degree adjustable collar ring for installation flexibility
• Stainless steel concentrator which eliminates gurgling noise

All HAYDON baseboard heating systems are manufactured to provide many years of trouble-free, safe, silent, and economical heat distribution. Hot water baseboard systems generate naturally converted heat that rises gently, warming walls and blocking drafts, providing uniform heat throughout a home's entire perimeter. HAYDON's system operates smoothly and silently. With hot air, you constantly hear and feel fan on, heat on, draft, fan off, heat off. Slim and unobtrusive, the low profile Model 750s BTU output is ideal for efficient, economical residential installations.

• Enclosure top-back panel: fabricated from 1-piece of sturdy pre-painted cold rolled steel designed for efficient air flow, with uniform surfaces and no dust-collecting cutouts
• Fingertip positional damper: special hinging mechanism allows for finger-tip control, closes shut to keep out dust or opens wide for maximum heat output, damper deflects air into room, for better heating distribution
• High strength brackets: die-formed from 1 piece of heavy-gauge steel designed to strengthen the enclosure and protect the heating element against damage special notches hold the heating element to allow for quiet expansion won't break or bend, cannot pop out of place, a turn of the wrist removes the twist slide brackets, for easy location during installation
• Noiseless element: aluminum fins are mechanically fastened to copper tubing to insure maximum heat transfer, elements have an expanded end for easy sweat connections without coupling
• Silent glide expansion tracks: 2-unique polyethylene silent glide tracks eliminate expansion and contraction noises

This 1/8 in. automatic air vent valve is used in commercial and residential hydronic heating applications to provide automatic air venting for hot or cold water distribution systems. It consists of a brass body construction with male NPT connection, brass cover, air vent with silicone rubber seal, polyethylene float with valve plug, and automatic vent. It has a high temperature rating and is ideal for use with glycol systems or for use as an anti-vacuum device. It can also be installed to permit the separation and dispersal of air while fluid is circulating in the system. It can be disassembled for inspection and cleaning. The maximum pressure is 150 psi (10 BAR).

• Body and cover are brass construction
• Air vent with silicon rubber seal
• Float is high temperature resistant polyethylene
• Suitable for use with glycol systems
• Can be disassembled for inspection and cleaning
• Provides automatic air venting for hot or cold water distribution systems
• Purge air that may be in the water system
• Minimum working pressure is 1.45 psi
• Maximum working pressure is 150 psi
• Temperature range is 33 to 240 degree F

The Taco 1 in. cast iron Freedom Flange set includes: (2) flanges, (4) nuts, and (4) mounting bolts. These flanges are designed for use with Taco "00", "00e", "2400", and "100" series hydronic circulators. Easily installed and removed with a common wrench.

• For use in a heating system
• Compatible with a wide variety of Taco circulators
• 1 in. Dia connection size
• Unique hex design provides easy-on, easy-off installation with a standard adjustable wrench

The 005-050RP Cartridge Assembly is used on several models of Taco circulators. This kit takes the place of conventional seal kits and is extremely easy to install. The Cartridge comes with all the hardware needed to extend your Taco Circulator's operating life.

• Repair part
• Includes casing body bolts
• Easy to install
• 3-year warranty

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

• Fast fill feature
• Built in check valve
• Easy dial-set technology allows simple output pressure setting in psi
• Integrated NPT pressure gage port for testing

The Delavan .60 80A Oil Nozzle has a stainless-steel, hollow orifice and features a brass body. Type A-nozzles are mainly used on burners with a hollow cone air pattern and for through puts up to 2.00 GPH. The droplet distribution is concentrated on the outside of the cone and results in good ignition and low-noise combustion. This boiler replacement part is compatible with an oil-burning appliance.

• Boiler replacement part
• For use with an oil-burning appliance
• Brass body
• Stainless-steel, hollow orifice

All the features you trust from the original Isolator Uni-Flange ball valve, plus a 360 degree rotating flange that allows for orientation to any degree necessary for your installation. This forged brass full port ball valve features a blow-out proof stem, adjustable packing glands and a stainless steel snap ring for extra stability during installation. The only way to isolate circulator pumps.

• Conical inlet to minimize turbulence
• Replaces 3-components, eliminates 2-leak paths, saves approximately 20 minutes in labor
• Fits virtually any standard circulator pump
• Available with slotted holes for high velocity pumps
• Prevents electrolysis
• Eliminates galvanic corrosion

• 4 in 1 alternative replaces a ball valve and 2 tee fittings and 1 boiler drain
• Quickly connect entire system to cold water feed
• Easily install, isolate, drain and replace any expansion tank
• Pressure rated at 600 WOG
• 1/2" FIP x MIP x FIP x HOSE

This 1 in. lead free brass water pressure reducing valve is the standard model, designed to reduce incoming water pressure to protect plumbing systems and reduce water consumption for commercial, industrial and residential applications. The easy maintenance assembly consists of a replaceable seat module, NPT threaded female union inlet by NPT female outlet and a bypass feature to control thermal expansion pressure. The temperature range is 33 to 160 degree F (0.5 to 71 degree C). Suitable for up to 300 psi (20.7 BAR), the pressure range can be adjusted from 25 to 75 psi (172 to 517 kPa) with the standard setting at 50 psi (345 kPa).

• NPT threaded female union inlet by NPT female outlet
• Sealed spring cage with stainless steel cage screws
• Integral stainless steel strainer removable for cleaning
• Replaceable seat module
• Suitable for up to 300 psi
• Pressure range can be adjusted from 25 to 75 psi
• Temperature range is 33 to 160 degree F
• Designed to reduce incoming water pressure to protect plumbing systems
• Designed to reduce water consumption for commercial, industrial and residential applications
• Standard setting at 50 psi

Watts 3/4 IN 374A Iron Boiler Pressure Relief Valve, 30 psi, Forged Brass Inlet Features A Flood Sensor With Sentryplus Alert Technology To Detect Excessive Water Discharges From The Relief Valve Requires purchase of activation kit to activate sensor Iron body with forged bronze inlet 550,000 BTU/hr rating Non-metallic disc-to-metal seating Set pressure 30 psi Mfg #F358553

• Features A Flood Sensor With Sentryplus Alert Technology To Detect Excessive Water Discharges From The Relief Valve
• Requires purchase of activation kit to activate sensor
• Iron body with forged bronze inlet
• 550,000 BTU/hr rating

The 3-Speed Service Pump is specially designed to make short work of service calls since it replaces the most commonly used circulators. It features a removable, uni-body Integral Flow Check that maximizes flow, as well as prevents gravity flow, even in the tallest buildings. Wiring is a snap thanks to an extra roomy capacitor box and convenient dual electrical knock out connections.

• 3-speed switch
• Highest performance and starting torque in class
• Replaceable cartridge design
• Self-lubrication

All HAYDON baseboard heating systems are manufactured to provide many years of trouble-free, safe, silent and economical heat distribution. Hot water baseboard systems generate naturally converted heat that rises gently, warming walls and blocking drafts, providing uniform heat throughout a home's entire perimeter. HAYDON's system operates smoothly and silently. With hot air, you constantly hear and feel fan on, heat on, draft, fan off, heat off. Slim and unobtrusive, the low profile Model 750s BTU output is ideal for efficient, economical residential installations.

• Enclosure top-back panel: fabricated from 1-piece of sturdy pre-painted cold rolled steel designed for efficient air flow, with uniform surfaces and no dust-collecting cutouts
• Fingertip positional damper: special hinging mechanism allows for finger-tip control, closes shut to keep out dust or opens wide for maximum heat output, damper deflects air into room, for better heating distribution
• High strength brackets: die-formed from 1 piece of heavy gauge steel designed to strengthen the enclosure and protect the heating element against damage special notches hold the heating element to allow for quiet expansion won't break or bend, cannot pop out of place, a turn of the wrist removes the twist slide brackets, for easy location during installation
• Noiseless element: aluminum fins are mechanically fastened to copper tubing to insure maximum heat transfer, elements have an expanded end for easy sweat connections without coupling
• Silent glide expansion tracks: 2-unique polyethylene silent glide tracks eliminate expansion and contraction noises