Valves & Pumps

Valves & Pumps

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NTI Boiler 65118712 Mixer 120 150C/120 Wbn Wcn Ng

NTI Boiler

MSRP: $96.26

Now: $74.38

NTI Boiler 65118712 Mixer 120 150C/120 Wbn Wcn Ng FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above

MSRP: $96.26

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Xylem-Bell & Gossett 115115 Pump Accessory 2 1/2" NPT System Side x 2" NPT Pump Side

Xylem-Bell & Gossett

MSRP: $829.62

Now: $641.07

Xylem-Bell & Gossett 115115 Pump Accessory 2 1/2" NPT System Side x 2" NPT Pump Side Cast Iron Body Steel Inlet Vanes and Orifice Cylinder Centrifugal Pump Suction Diffuser Plus with 16 Mesh Bronze Start-Up Strainer rated at 250 degrees F...

MSRP: $829.62

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Bosch HVAC 8733907671 Sp Valve Reversing 041 042 048

Bosch HVAC

MSRP: $157.36

Now: $121.60

Bosch HVAC 8733907671 Sp Valve Reversing 041 042 048 FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above

MSRP: $157.36

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Danfoss 003Z0784 3"Flg AB-QM PICV, 48-120gpm

Danfoss

MSRP: $4,000.01

Now: $3,090.92

Danfoss 003Z0784 3"Flg AB-QM PICV, 48-120gpm Must Ship by Freight Truck FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements...

MSRP: $4,000.01

Now: $3,090.92

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Watts F121514 Relief Valve 1.25" LF174A 75# 3,429K

Watts

MSRP: $1,957.68

Now: $1,512.75

Watts F121514 Relief Valve 1.25" LF174A 75# 3,429K FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above

MSRP: $1,957.68

Now: $1,512.75

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Belimo ZONE215N10+Z120NCS 1/2"NPT 1cv N/C 120v w/Aux Sw

Belimo

MSRP: $263.79

Now: $203.83

Belimo ZONE215N10+Z120NCS 1/2"NPT 1cv N/C 120v w/Aux Sw Motor Actuator 2 Way NPT Female 1/2" Cv 1.0 with Acuator Spring-Return Normally Closed 120Vac with Auxiliary Switch FurnacePartSource.com Commitment Always Brand-New Genuine Parts In...

MSRP: $263.79

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Carrier EP71BA183 Liquid Line Service Valve

Carrier

MSRP: $244.68

Now: $185.36

Carrier EP71BA183 Liquid Line Service Valve Item is Non-Cancelable / Non-Returnable FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements...

MSRP: $244.68

Now: $185.36

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Rheem-Ruud 61-107128-84 Expansion Valve Kit

Rheem-Ruud

MSRP: $160.05

Now: $123.68

Rheem-Ruud 61-107128-84 Expansion Valve Kit FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above

MSRP: $160.05

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Siemens Building Technology VXP45.25-6.3 Valve 2 Port 1 1/4"

Siemens Building Technology

MSRP: $268.70

Now: $207.63

Siemens Building Technology VXP45.25-6.3 Valve 2 Port 1 1/4" FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above

MSRP: $268.70

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York 025-53824-000 TXV Valve

York

MSRP: $1,083.57

Now: $837.31

York 025-53824-000 TXV Valve FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above

MSRP: $1,083.57

Now: $837.31

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Johnson Controls VG7241ST+71CHGC Valve Assembly 2"

Johnson Controls

MSRP: $1,629.44

Now: $1,259.11

Johnson Controls VG7241ST+71CHGC Valve Assembly 2" NPT 24Vac 2 Way 46.2 Cv Equal Percentage Flow Cast Bronze Body with Brass Trim and Non-Spring Return Actuator 0(2)-10vdc 0(4)-20mA Two-Position or Floating (Field Selectable) with 2-SPDT...

MSRP: $1,629.44

Now: $1,259.11

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Copeland Comfort Control (Alco) 053060 Medium Temperature Charge Thermal Expansion Valve (Model HF 2 FC 5FT 3/8 X 1/2 SAE S/T)

Copeland Comfort Control (Alco)

MSRP: $126.22

Now: $97.54

Copeland Comfort Control (Alco) 053060 Medium Temperature Charge Thermal Expansion Valve 3/8" x 1/2" Flare Straight Body 5' Capillary Tube R12 Capacity-2 Ton (Model HF 2 FC 5FT 3/8 X 1/2 SAE S/T) FurnacePartSource.com...

MSRP: $126.22

Now: $97.54

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Siemens Building Technology 274-03200 3 Way Mixing Valve Assembly 1/2"

Siemens Building Technology

MSRP: $1,391.03

Now: $1,074.89

Siemens Building Technology 274-03200 3 Way Mixing Valve Assembly 1/2" NPT 0-10Vdc 4-20mA 24Vac 2.5 Cv Bronze Body with Brass Trim and Spring Return Modulating Actuator FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock...

MSRP: $1,391.03

Now: $1,074.89

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MSRP: $1,391.03

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Siemens Building Technology 373-03200 3 Way Mixing Valve Assembly 1/2"

Siemens Building Technology

MSRP: $795.42

Now: $614.64

Siemens Building Technology 373-03200 3 Way Mixing Valve Assembly 1/2" NPT 2.5 Cv Bronze Body with Brass Trim and 24Vac Non-Spring Return Floating Actuator FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts...

MSRP: $795.42

Now: $614.64

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Daikin-McQuay 4020632 Valve EXV

Daikin-McQuay

MSRP: $55.95

Now: $43.24

Daikin-McQuay 4020632 Valve EXV FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above

MSRP: $55.95

Now: $43.24

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Johnson Controls VG7241ST+3008E Valve Assembly 2 Way Normally Open 2"

Johnson Controls

MSRP: $1,225.72

Now: $947.15

Johnson Controls VG7241ST+3008E Valve Assembly 2 Way Normally Open 2" NPT 46.2 Cv Equal Percentage Flow Cast Bronze Body with Brass Trim 9-13 PSI Spring Range Spring Return Exposed Pneumatic Actuator FurnacePartSource.com...

MSRP: $1,225.72

Now: $947.15

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Johnson Controls VG7241ST+3008D Valve Assembly 2 Way Normally Open 2"

Johnson Controls

MSRP: $1,052.82

Now: $813.54

Johnson Controls VG7241ST+3008D Valve Assembly 2 Way Normally Open 2" NPT 46.2 Cv Equal Percentage Flow Cast Bronze Body with Brass Trim 4-8 PSI Spring Range Spring Return Exposed Pneumatic Actuator FurnacePartSource.com...

MSRP: $1,052.82

Now: $813.54

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Little Giant 599063 Check Valve for VCMA-15/20

Little Giant

MSRP: $47.21

Now: $36.48

Little Giant 599063 Check Valve for VCMA-15/20 FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above

MSRP: $47.21

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Watts F121508 1 LF174A 150 FS

Watts

MSRP: $929.58

Now: $718.31

Watts F121508 1 LF174A 150 FS FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless noted above

MSRP: $929.58

Now: $718.31

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Sensus-Gas Division 122-12-2-ORANGE Hi Cap Regulator 2" 15#max 12-28"wc

Sensus-Gas Division

MSRP: $2,791.57

Now: $2,157.12

Sensus-Gas Division 122-12-2-ORANGE Hi Cap Regulator 2" 15#max 12-28"wc FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order Requirements unless...

MSRP: $2,791.57

Now: $2,157.12

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Valves & Pumps

The Valves & Pumps category encompasses critical HVAC components that regulate fluids and gases throughout heating and cooling systems. It includes HVAC gas valves, various solenoid valves, and a range of pumps and related parts. These parts play essential roles in fuel control, water circulation, and system safety. Whether managing gas flow to a furnace or moving water in a boiler loop, valves and pumps keep HVAC systems running efficiently and safely.

Key HVAC Valve and Pump Categories

HVAC Gas Valves: Gas valves are essential safety controls in furnaces and boilers. They regulate the flow of natural gas or propane to the burner, opening only when heat is needed and closing to prevent leaksfurnacepartsource.com. Many modern gas valves are solenoid operated, using electromagnetic actuators for precise on/off control. Proper gas valve function is critical for safe ignition and shut-off in any gas fired HVAC system.

Solenoid Valves: Solenoid valves are electrically controlled valves used for automatic fluid control in HVAC systems. By energizing a coil, they can instantly open or close to control the flow of liquids or gasesfurnacepartsource.com. Solenoid valves are found in various applications, from fuel gas shutoff to refrigerant line control, and ensure rapid, reliable operation of cooling and heating circuits.

Circulator Pumps: Circulator pumps are the heart of hydronic heating systems. They continuously circulate hot water from the boiler through

radiators, baseboard heaters, or radiant floor loopsbandhheatingandair.com. This ensures even heat distribution in every zone. Circulator pumps are typically centrifugal pumps designed for closedloop systems, maintaining steady flow and pressure to deliver consistent warmth.

Condensate Pumps: Condensate pumps remove water formed by condensation in HVAC equipment. High-efficiency furnaces and air conditioning coils often produce condensate (water) that must be drained. When gravity drainage isn’t feasible (for example, in basements or attic units), a condensate pump collects and pumps out the water to a safe drain pointbandhheatingandair.com. These compact pumps prevent water buildup that could cause mold or equipment damage.

Zone Valves: Zone valves control hot water flow to different heating zones in a hydronic system. Each zone valve opens or closes to allow water into a specific zone (such as an individual room or floor) based on thermostat demandtameson.com. By segmenting a heating system into zones, these valves enable targeted temperature control and energy savings. Zone valves are usually motor-operated (often 24V) and are common in homes with multiple heating zones or radiant floor heating.

Compatibility and OEM Replacement Parts

When selecting replacement valves or pumps, compatibility with your HVAC system is crucial. Always match the new part’s specifications (fuel type, size, voltage, flow capacity, etc.) to your equipment’s requirements. Using genuine OEM furnace pump replacements (Original Equipment Manufacturer parts) is recommended for optimal fit and performance. Genuine OEM replacement parts ensure compatibility and reliability, restoring the system to its original operating specificationsengineparts4less.com. In practice, this means a replacement circulator pump or gas valve from the system’s manufacturer will fit correctly and function as intended, with no modification needed. Always verify model numbers or part numbers when searching for replacements to ensure you get the correct component for your furnace, boiler, or AC unit.

Frequently Asked Questions

What is an HVAC gas valve and how does it work?

An HVAC gas valve is a control device that manages fuel gas flow to a furnace or boiler. It remains closed until the system calls for heat, then opens to supply natural gas or propane to the burner. Modern gas valves often include safety features that shut off gas to prevent leaks if there's no ignition or if the system is offfurnacepartsource.com. In essence, the gas valve ensures fuel is delivered only when safe and needed.

When are solenoid valves used in HVAC systems?

Solenoid valves are used whenever fast and automatic fluid control is needed in HVAC systems. They rely on an electromagnetic coil to open or close the valve almost instantly. Common HVAC uses include controlling refrigerant flow in air conditioners, acting as gas shutoff valves in furnaces, or regulating water flow in cooling towers. Their ability to precisely control liquids or gases with an electrical signal makes them indispensable for automation and safety in modern HVAC equipmentfurnacepartsource.com.

What is the difference between a circulator pump and a condensate pump?

A circulator pump and a condensate pump serve very different purposes in HVAC systems. A circulator pump is used in hydronic heating (or cooling) loops to continuously move water through the system’s pipes, ensuring even distribution of heat (or chilled water) to all radiators or coils. In contrast, a condensate pump doesn’t circulate heating water; it removes condensation water. Condensate pumps collect excess water produced by AC evaporator coils or high-efficiency furnace exhaust and pump it out to a drainbandhheatingandair.com. In short, circulator pumps move hot (or cold) water for heating/cooling, while condensate pumps dispose of unwanted water from the system.

How do zone valves work in a heating system?

Zone valves are used in hot water (hydronic) heating systems to divide the system into zones for independent control. Each zone valve is installed on the supply pipe feeding a specific zone (area or room). When a zone’s thermostat calls for heat, its valve opens to allow hot water flow into that loop; once the zone is satisfied, the valve closes. This operation can be manual or, more commonly, driven by an

electric actuator motor. By opening or closing, zone valves control water flow to specific zones or areastameson.com, enabling different areas of a building to be heated to different temperatures as needed.

Why choose OEM furnace pump replacements?

Choosing OEM furnace pump replacements is important to ensure the new part will fit and function exactly like the original. OEM (Original Equipment Manufacturer) pumps are made to the same specifications and quality standards as the part that came with your furnace or boiler. This guarantees compatibility in terms of mounting, voltage, capacity, and control connections. While aftermarket alternatives exist, an OEM pump eliminates guesswork – it will match the system’s requirements and often maintain any existing warranties or safety certifications. In summary, using an OEM replacement pump provides peace of mind that the repair will restore your HVAC system’s performance and reliability to factory standards.