Flow Control Materials

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Keep the water flowing in your boiler system with flow control materials. With a wide selection of valves, switches, and more, eComfort has the flow control materials to optimize the performance of your hydronic system.
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Learn More About Caleffi 127369AF9G0
Caleffi FlowCal Compact Automatic Flow Balancing Valve 1" Sweat Connections, Low-Lead Brass
Model: 127369AF9G0
Caleffi FlowCal Compact Automatic Flow Balancing Valve, 1" Sweat Connections, Low-Lead Brass
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$96.32
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Learn More About Taco 218-3
Taco Flo-Chek - 3/4" NPT - Check Valve - Cast Iron - Universal
Model: 218-3
Taco - 218-3 - 3/4" NPT Connection - Check Valve - Cast Iron - Universal
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$52.50
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Learn More About Taco 219-4
Taco Flo-Chek - 3/4" Sweat - Check Valve - Bronze - Horizontal
Model: 219-4
Taco - 219-4 - 3/4" Sweat Connection - Check Valve - Bronze - Horizontal
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$61.18
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Learn More About Taco 220-6
Taco Flo-Chek - 1" NPT - Check Valve - Cast Iron - Universal
Model: 220-6
Taco - 220-6 - 1" NPT Connection - Check Valve - Cast Iron - Universal
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$55.13
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Learn More About Taco 221-6
Taco Flo-Chek - 1-1/4" NPT - Check Valve - Cast Iron - Universal
Model: 221-6
Taco - 221-6 - 1-1/4" NPT Connection - Check Valve - Cast Iron - Universal
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$81.58
In-Stock
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Learn More About Taco IFS01BF-1
Taco Industrial Flow Switch - Brass - Flexible Paddle - NEMA 1
Model: IFS01BF-1
Taco - IFS01BF-1 - Industrial Flow Switch - Brass - Flexible Paddle - NEMA 1
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$174.08
Only 3 In-Stock
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Learn More About Caleffi 548052A
Caleffi Series 548 Hydronic Separator, 2" Flanged Connections
Model: 548052A
Caleffi Series 548 Hydronic Separator, 2" Flanged Connections
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$2,860.14
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
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Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
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Learn More About Caleffi 548062A
Caleffi Series 548 Hydronic Separator, 2-1/2" Flanged Connections
Model: 548062A
Caleffi Series 548 Hydronic Separator, 2-1/2" Flanged Connections
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$3,045.00
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount Icon
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
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Learn More About Caleffi 548082A
Caleffi Series 548 Hydronic Separator, 3" Flanged Connections
Model: 548082A
Caleffi Series 548 Hydronic Separator, 3" Flanged Connections
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$3,811.79
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount Icon
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
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Learn More About Caleffi NA548082A
Caleffi Series 548 Hydronic Separator, 3" Flanged Connections, ASME & CRN Certified
Model: NA548082A
Caleffi Series 548 Hydronic Separator, 3" Flanged Connections, ASME & CRN Certified
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$4,895.81
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount Icon
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
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Learn More About Caleffi 548102A
Caleffi Series 548 Hydronic Separator, 4" Flanged Connections
Model: 548102A
Caleffi Series 548 Hydronic Separator, 4" Flanged Connections
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$4,265.07
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Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount Icon
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
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Learn More About Caleffi NA548062A
Caleffi Series 548 Hydronic Separator, 2-1/2" Flanged Connections, ASME & CRN Certified
Model: NA548062A
Caleffi Series 548 Hydronic Separator, 2-1/2" Flanged Connections, ASME & CRN Certified
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$4,044.72
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Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount Icon
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
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Learn More About Caleffi NA548102A
Caleffi Series 548 Hydronic Separator, 4" Flanged Connections, ASME & CRN Certified
Model: NA548102A
Caleffi Series 548 Hydronic Separator, 4" Flanged Connections, ASME & CRN Certified
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$5,176.06
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Free Shipping & Lift Gate
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount Icon
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
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Learn More About Caleffi NA548120A
Caleffi Series 548 Hydronic Separator, 5" Flanged Connections, ASME & CRN Certified, no insulation
Model: NA548120A
Caleffi Series 548 Hydronic Separator, 5" Flanged Connections, ASME & CRN Certified, no insulation
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$7,558.52
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount Icon
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
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Learn More About Caleffi NA548150A
Caleffi Series 548 Hydronic Separator, 6" Flanged Connections, ASME & CRN Certified, no insulation
Model: NA548150A
Caleffi Series 548 Hydronic Separator, 6" Flanged Connections, ASME & CRN Certified, no insulation
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$9,171.97
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount Icon
2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
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Learn More About Caleffi 502610A
Caleffi Automatic Air Vent, 1/8" NPT Male Connections
Model: 502610A
Caleffi Automatic Air Vent, 1/8" NPT Male Connections
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$11.40
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Learn More About Caleffi 502620A
Caleffi Automatic Air Vent, 1/4" NPT Male Connections
Model: 502620A
Caleffi Automatic Air Vent, 1/4" NPT Male Connections
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$12.06
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Learn More About Caleffi 502640
Caleffi Automatic Air Vent, 1/2" Straight Thread Connections
Model: 502640
Caleffi Automatic Air Vent, 1/2" Straight Thread Connections
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$17.21
Only 1 In-Stock
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Learn More About Caleffi 644350A
Caleffi 3-Way Diverting Motorized Ball Zone Valve, 3/4" NPT Connections, 4.5 Cv
Model: 644350A
Caleffi 3-Way Diverting Motorized Ball Zone Valve, 3/4" NPT Connections, 4.5 Cv
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$259.56
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
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Learn More About Caleffi 644359A 3BY
Caleffi 3-Way Bypass Motorized Ball Zone Valve, 3/4" Sweat Connections, 12 Cv Ball, 1.5 Cv Bypass
Model: 644359A 3BY
Caleffi 3-Way Bypass Motorized Ball Zone Valve, 3/4" Sweat Connections, 12 Cv Ball, 1.5 Cv Bypass
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$267.65
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
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Learn More About Caleffi 644360A
Caleffi 3-Way Diverting Motorized Ball Zone Valve, 1" NPT Connections, 4.5 Cv
Model: 644360A
Caleffi 3-Way Diverting Motorized Ball Zone Valve, 1" NPT Connections, 4.5 Cv
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$302.21
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
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Learn More About Caleffi 644369A 3BY
Caleffi 3-Way Bypass Motorized Ball Zone Valve, 1" Sweat Connections, 12 Cv Ball, 1.5 Cv Bypass
Model: 644369A 3BY
Caleffi 3-Way Bypass Motorized Ball Zone Valve, 1" Sweat Connections, 12 Cv Ball, 1.5 Cv Bypass
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$295.59
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
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Learn More About Caleffi 644369A
Caleffi 3-Way Diverting Motorized Ball Zone Valve, 1" Sweat Connections, 4.5 Cv
Model: 644369A
Caleffi 3-Way Diverting Motorized Ball Zone Valve, 1" Sweat Connections, 4.5 Cv
Write A Review
$295.59
Factory-Direct
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
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Learn More About Caleffi NA549052A
Caleffi 3-in-1 Hydro, Air and Dirt Separator, 2" Flanged Connections - ASME/CRN Certified
Model: NA549052A
Caleffi 3-in-1 Hydro, Air and Dirt Separator, 2" Flanged Connections - ASME/CRN Certified
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$4,890.64
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
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2% Check Discount
Learn More About 2% Check Discount
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
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