Valves & Pumps

Valves & Pumps

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Lochinvar & A.O. Smith 100171938 VALVE GAS KIT LP PB/PF 1302

Lochinvar & A.O. Smith

MSRP: $3,282.48

Now: $2,486.73

Lochinvar & A.O. Smith 100171938 VALVE GAS KIT LP PB/PF 1302 FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order...

MSRP: $3,282.48

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Schneider Electric (Erie) VT2517G13A02A (replaces MZV527E) Valve Assembly

Schneider Electric (Erie)

MSRP: $232.77

Now: $179.86

Schneider Electric (Erie) VT2517G13A02A Valve Assembly Two Way Normally Closed 1 1/4" Sweat 8.0 Cv 24Vac Spring Return Two Position Zone Valve with End Switch This is the direct replacement for MZV527E. FurnacePartSource.com...

MSRP: $232.77

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Parker Refrigeration Specialties S7A-3/4-BARE REFRIG/AMM. SOL W/OUT FLANGES & COIL

Parker Refrigeration Specialties

MSRP: $397.62

Now: $301.23

Parker Refrigeration Specialties S7A-3/4-BARE REFRIG/AMM. SOL W/OUT FLANGES & COIL FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order...

MSRP: $397.62

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Weil McLain 511-044-360 Combination Gas Valve 1/2" X 1/2" NPT 24 Volt

Weil McLain

MSRP: $347.69

Now: $268.67

Weil McLain 511-044-360 Combination Gas Valve 1/2" X 1/2" NPT 24 Volt FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum Order...

MSRP: $347.69

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ASCO K3A532V (Replaces K3A532U) GAS VALV E 3/8"120V N/C 10#MAX

Asco

MSRP: $299.56

Now: $231.48

ASCO K3A532V (Replaces K3A532U) GAS VALV E 3/8" 120V N/C 10#MAX This is the Direct Replacement for K3A532U FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when...

MSRP: $299.56

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Lennox Y8735 (Replaces 37L51) TXV R410 1.5-2.5 TON

Lennox

MSRP: $104.58

Now: $79.23

Lennox Y8735 (Replaces 37L51) TXV R410 1.5-2.5 TON This is the Direct Replacement for 37L51 FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when...

MSRP: $104.58

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Resideo VCZZ1100 Replacement Cartridge & Silver Spring for VC series 2-Way Valves

Resideo

MSRP: $55.23

Now: $42.67

Resideo VCZZ1100 Replacement Cartridge & Silver Spring for VC series 2-Way Valves linear flow for use with 2-position or fail safe proportional actuators includes cartridge wrench FurnacePartSource.com Commitment Always Brand-New...

MSRP: $55.23

Now: $42.67

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Cozy Heaters 74315 GAS VALVE

Cozy Heaters

MSRP: $486.09

Now: $375.62

Cozy Heaters 74315 GAS 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: $486.09

Now: $375.62

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Lennox 10A85 2 STG NAT GAS VALVE

Lennox

MSRP: $186.96

Now: $144.47

Lennox 10A85 2 STG NAT GAS 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...

MSRP: $186.96

Now: $144.47

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Resideo VR8205Q2787T (Replaces VR8205Q2787) Direct Ignition Gas Valve

Resideo

MSRP: $275.47

Now: $212.86

Resideo VR8205Q2787T (Replaces VR8205Q2787) Direct Ignition Gas Valve 1/2" 24V 2Stg This is the Updated Version for VR8205Q2787 FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts...

MSRP: $275.47

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Raypak 015301F (Replaces 1600-160RP) PUMP CARTRIDGE

Raypak

MSRP: $1,452.45

Now: $1,122.34

Raypak 015301F (Replaces 1600-160RP) PUMP CARTRIDGE This is the Direct Replacement for 1600-160RP FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM...

MSRP: $1,452.45

Now: $1,122.34

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MSRP: $1,452.45

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York 025-45331-001 VALVE

York

MSRP: $1,638.75

Now: $1,241.48

York 025-45331-001 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: $1,638.75

Now: $1,241.48

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Sensus-Gas Division 143-08-021-03 12-28"WC ORANGE SPRING FOR RPC

Sensus/Rockwell

MSRP: $5.81

Now: $4.40

Sensus-Gas Division 143-08-021-03 12-28"WC ORANGE SPRING FOR RPC 12-28"WC FOR RPC FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM ET No Minimum...

MSRP: $5.81

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York 025-33280-000 Thermal Expansion Valve

York

MSRP: $574.41

Now: $435.16

York 025-33280-000 Thermal Expansion Valve If out of stock, call or text 1.866.620.8417 for possible cross reference. FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when...

MSRP: $574.41

Now: $435.16

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Parker Refrigeration Specialties 104004 SUCTION SOLENOID VALVE 2 5/8"PORT/CONN

Parker Refrigeration Specialties

MSRP: $2,341.76

Now: $1,809.54

Parker Refrigeration Specialties 104004 SUCTION SOLENOID VALVE 2 5/8"PORT/CONN FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM...

MSRP: $2,341.76

Now: $1,809.54

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Danfoss 148B5522 Shut-off Valve SVA-S Standard Neck

Danfoss

MSRP: $294.00

Now: $222.73

Danfoss 148B5522 Shut-off Valve SVA-S Standard Neck 1 1/4"/32mm Socket weld: ANSI B 16.11 Angle-way Hand wheel 52 Bar / 754 PSI Stop Valve Applicable to all common refrigerants including flammable hydrocarbons and all non-corrosive...

MSRP: $294.00

Now: $222.73

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Danfoss 148B5422 Shut-off Valve

Danfoss

MSRP: $222.06

Now: $168.23

Danfoss 148B5422 Shut-off Valve SVA-S Standard Neck 1"/25mm Socket weld: ANSI B 16.11 Angle-way Hand wheel 52 Bar / 754 PSI Stop Valve Applicable to all common refrigerants including flammable hydrocarbons and all non-corrosive...

MSRP: $222.06

Now: $168.23

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Danfoss 148B5322 Shut-off Valve SVA-S Standard Neck

Danfoss

MSRP: $202.13

Now: $153.13

Danfoss 148B5322 Shut-off Valve SVA-S Standard Neck 3/4"/20mm Socket weld: ANSI B 16.11 Angle-way Hand wheel 52 Bar / 754 PSI Stop Valve Applicable to all common refrigerants including flammable hydrocarbons and all non-corrosive...

MSRP: $202.13

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ASCO H117BJ122F1 (Replaces H117AJ112F1) Hi Flow Gas Valve 2"npt 120v NC

Asco

MSRP: $6,420.53

Now: $4,864.04

ASCO H117BJ122F1 (Replaces H117AJ112F1) Hi Flow Gas Valve 2"npt 120v NC FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts ship Same Business Day when ordered by 5PM...

MSRP: $6,420.53

Now: $4,864.04

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Honeywell 14003295-002 Valve Repack Kit

Honeywell

MSRP: $143.06

Now: $110.54

Honeywell 14003295-002 Valve Repack Kit V5011A,C,F,G and V5013A, B, C, F Series with 3/8" Stem 1 1/2"-3" Steam Applications FurnacePartSource.com Commitment Always Brand-New Genuine Parts In stock parts...

MSRP: $143.06

Now: $110.54

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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.