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Category: Water Heater Isolation Valves

Water Heater Isolation Valves

Water heater isolation valves control the flow of water to and from a water heater. They are most useful when plumbers can conduct internal maintenance or repairs without shutting down the entire water supply. Craft Supply carries wholesale pump isolation valves for heating applications. Choose from a variety of isolation ball valves and air separators made of durable brass that’s designed to last several decades. We also sell water heater isolation valves for tankless water heaters with pressure relief valves that allow homeowners to access cold water during plumbing repairs. Explore Craft Supply’s heating system parts today and discover the supplies you need at a great price.

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Showing 1–24 of 30 results

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    SKU:6474

    1-1/2″ Brass Flange with Isolating Ball Valve

    $35.26
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    SKU:3366

    1-1/2″ IPS Spirovent w/Removable Vent Head

    $165.00

    H-74006

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    Out of stock
    SKU:6479

    1-1/2″ Sweat Brass Flange with Isolating Ball Valve

    $87.39
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    Out of stock
    SKU:6377

    1-1/2″ Sweat Spirovent w/Removable Vent Head

    $195.00

    H-75006

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    Out of stock
    SKU:3836

    1-1/4″ IPS Brass Flange with Isolating Ball Valve

    $24.31
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    Out of stock
    SKU:3118

    1-1/4″ IPS Spirovent w/Removable Vent Head

    $183.60

    H-74005

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    Out of stock
    SKU:3550

    1-1/4″ Sweat Brass Flange with Isolating Ball Valve

    $24.89
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    Out of stock
    SKU:321

    1-1/4″ Sweat Spirovent w/Removable Vent Head

    $174.90

    H-75005

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    Out of stock
    SKU:5420

    1″ Brass Flange w/Sweat Isolating Valve and Drain

    $42.78
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    Out of stock
    SKU:4182

    1″ IPS Brass Flange with Isolating Ball Valve

    $22.26
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  • Remove from Wishlist
    Out of stock
    SKU:3971

    1″ IPS Spirovent w/Removable Vent Head

    $127.10

    H-74004

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    Out of stock
    SKU:3374

    1″ Sweat Brass Flange with Isolating Ball Valve

    $28.01
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    Out of stock
    SKU:5011

    1″ Sweat Thermostatic Mixing Valve w/ Check Valve H-75204W (Lead Free)

    $135.36

    The Webstone TMV is designed for use in heating as well as domestic water systems and provides outlet temperatures ranging between 95°-120° F. The valve may be positioned in any orientation; designated lengths of straight piping before and after the unit are not required. The Webstone Thermostatic Mixing Valve is a SAFETY VALVE. Inspect the …

    1″ Sweat Thermostatic Mixing Valve w/ Check Valve H-75204W (Lead Free)Read More

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    Out of stock
    SKU:11981

    1/2″ Sweat MIXCAL 3-Way Thermostatic Mixing Valve (Lead Free)

    $165.00

    The Caleffi MixingCal 3-Way Thermostatic Mixing Valve is used in systems producing domestic hot water or in hydronic and radiant heating systems. It maintains the desired output temperature of the mixed water supplied to the user at a constant set valve, compensating for both temperature and pressure fluctuations of the incoming hot and cold water. …

    1/2″ Sweat MIXCAL 3-Way Thermostatic Mixing Valve (Lead Free)Read More

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    Out of stock
    SKU:11524

    2″ IPS Air Separator w/Removable Vent Head 74007

    $355.36

    H-74007

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    Out of stock
    SKU:6485

    2″ IPS Brass Flange with Isolating Ball Valve

    $59.20
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    Out of stock
    SKU:8700

    2″ NPT Male LEGIOMIX® Electronic Mixing Valve

    $2,550.00

    Adjustment temperature range: 70˚ – 185˚F Disinfection temperature range: 100˚ – 185˚F Max body pressure rating (static): 230 psi Max operating pressure: 150 psi Max inlet temperature: 212˚F Protection class: IP 54 (controller) Standards: ASSE 1017, CSA B15.3, NSF/ANSI 372 – 2016, Drinking Water System Components – Lead Content, Reduction of Lead in Drinking Water Act, California Health and Safety Code 116875,     …

    2″ NPT Male LEGIOMIX® Electronic Mixing ValveRead More

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    Out of stock
    SKU:6373

    2″ Sweat Brass Flange with Isolating Ball Valve

    $44.80
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  • Remove from Wishlist
    Out of stock
    SKU:4280

    3/4″ IPS Air Separator w/Removable Vent Head 74003

    $85.80

    Webstone H-74003 3/4″ Air Separator (Threaded)

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    Out of stock
    SKU:3645

    3/4″ IPS Brass Flange with Isolating Ball Valve

    $24.71
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  • Remove from Wishlist
    Out of stock
    SKU:691

    3/4″ Sweat Air Separator w/Removable Vent Head 75003

    $136.00

    H-75003

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    Out of stock
    SKU:5481

    3/4″ Sweat Brass Ball Valve w/ Hose Drain & Handle

    $30.71

    H-50613

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  • Remove from Wishlist
    Out of stock
    SKU:3544

    3/4″ Sweat Brass Flange with Isolating Ball Valve

    $21.42
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    Out of stock
    SKU:9669

    3/4″ Sweat Isolator Flange Ball Valve With Drain, (Pair of 2) – 510C034

    $78.00

    Flanged Ball Valve With Purge Set of 2 Valves

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