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Pump Controllers

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  1. Bell and Gossett 113223 model AQS-1/2 aquastat pump controller.
    Bell & Gossett AQS-1/2 Aquastat Pump Controller (113223)
    List Price $122.00 $89.53  / each
    SKU: BI1500
    1 in stock
    AQS-1/2"Copper Aquastat for NRF/NBF pumps. OFF (open) 120F, ON (closed) 100F. Explore More
    • Manufacturer : Bell & Gossett
    • Part Number : 113223
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    List Price $122.00 $89.53  / each
  2. Bell and Gossett 113224 model AQS-3/4 aquastat pump controller.
    Bell & Gossett AQS-3/4 Aquastat Pump Controller (113224)
    List Price $76.00 $55.76  / each
    SKU: BI1500A
    3 in stock
    AQS-3/4"Copper Aquastat for NRF/NBF pumps. OFF (open) 120F, ON (closed) 100F. Explore More
    • Manufacturer : Bell & Gossett
    • Part Number : 113224
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    List Price $76.00 $55.76  / each
  3. Bell & Gossett 113077 - AZ-1 Pump Controller
    Bell & Gossett 113077 - AZ-1 Pump Controller
    $0.00  / each
    SKU: BI1510
    Bell & Gossett AZ-1 pump controller. Explore More
    • Manufacturer : Bell & Gossett
    • Part Number : 113077
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    This item is obsolete.
  4. Bell & Gossett AZ-1X ADD-A-ZONE Relay (113078)
    Bell & Gossett AZ-1X ADD-A-ZONE Relay (113078)
    $0.00  / each
    SKU: BG113078
    Bell & Gossett 113078 model AZ-1X ADD-A-ZONE relay. Explore More
    • Manufacturer : Bell & Gossett
    • Part Number : 113078
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    1 Alternative Item(s)
    This item is obsolete. Please visit the item's page to view 1 alternate item(s).
  5. Bell Gossett 109423 model AZ-1a zone pump controller.
    Bell & Gossett AZ-1A ZoneTrol II Pump Controller (109423)
    $0.00  / each
    SKU: BI1510B
    Model AZ-1A Pump Controller for thermostatically controlled heating pumps up to 1/6HP. 115 volt, 1ph., 24 volt, 5 amp relay. Explore More
    • Manufacturer : Bell & Gossett
    • Part Number : 109423
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    This item is obsolete.
  6. Bell and Gossett 109424 ZoneTrol II pump controller model Z-1.
    Bell & Gossett 109424 - Electric Pump Controller Z-1
    $0.00  / each
    SKU: BI1600
    Z-1 Single-Zone Pump Control for hydronic systems. 120V, 24VA thermostat current. Explore More
    • Manufacturer : Bell & Gossett
    • Part Number : 109424
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    This item is obsolete.
  7. Bell & Gossett 109425 Z-2 Zone Relay
    Bell & Gossett Z-2 Zone Relay (109425)
    $0.00  / each
    SKU: BI1605
    Z-2 Two-Zone Pump Control for hydronic systems. 120V, 24VA thermostat current. Explore More
    • Manufacturer : Bell & Gossett
    • Part Number : 109425
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    This item is obsolete.
  8. Bell Gossett Z-3 zone relay.
    Bell & Gossett Z-3 ZoneTrol II Zone Pump Controller (109426)
    $0.00  / each
    SKU: BI1610
    Z-3 Three-Zone Pump Control for hydronic systems. 120V, 24VA thermostat current. Explore More
    • Manufacturer : Bell & Gossett
    • Part Number : 109426
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    This item is obsolete.
  9. Bell & Gossett 109427 - Electric Pump Controller Z-4
    Bell & Gossett 109427 - Electric Pump Controller Z-4
    List Price $675.00 $495.34  / each
    SKU: BI1615
    Ships within 4 business days
    Z-4 Four-Zone Pump Control for hydronic systems. 120V, 24VA thermostat current. Explore More
    • Manufacturer : Bell & Gossett
    • Part Number : 109427
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    List Price $675.00 $495.34  / each
  10. Bell & Gossett 109428 - Electric Pump Controller Z-4M
    Bell & Gossett 109428 - Electric Pump Controller Z-4M
    $0.00  / each
    SKU: BI1620
    Z-4M Four-Zone Pump Control with mixing reset, for hydronic systems. 120V, 24VA thermostat current. Explore More
    • Manufacturer : Bell & Gossett
    • Part Number : 109428
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    This item is obsolete.
  11. Bell & Gossett 109429 - Electric Pump Controller Z-4B
    Bell & Gossett 109429 - Electric Pump Controller Z-4B
    $0.00  / each
    SKU: BI1625
    Z-4B Four-Zone Pump Control with boiler reset, for hydronic systems. 120V, 24VA thermostat current. Explore More
    • Manufacturer : Bell & Gossett
    • Part Number : 109429
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    This item is obsolete.
  12. Bell & Gossett 109430 - Electric Pump Controller Z-6
    Bell & Gossett 109430 - Electric Pump Controller Z-6
    List Price $745.00 $546.71  / each
    SKU: BI1630
    Ships within 4 business days
    Z-6 Six-Zone Pump Control for hydronic systems. 120V, 24VA thermostat current. Explore More
    • Manufacturer : Bell & Gossett
    • Part Number : 109430
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    List Price $745.00 $546.71  / each
  13. Bell & Gossett 109454 - Electric Pump Controller Z-6B
    Bell & Gossett 109454 - Electric Pump Controller Z-6B
    List Price $21.50 $15.33  / each
    SKU: BI1635
    Z-6B Six-Zone Pump Control with boiler reset, for hydronic systems. 120V, 24VA thermostat current. Explore More
    • Manufacturer : Bell & Gossett
    • Part Number : 109454
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    This item is obsolete.
  14. Bell & Gossett 109431 - Electric Pump Controller Z-6M
    Bell & Gossett 109431 - Electric Pump Controller Z-6M
    $0.00  / each
    SKU: BI1640
    Z-6M Six-Zone Pump Control with mixing reset, for hydronic systems. 120V, 24VA thermostat current. Explore More
    • Manufacturer : Bell & Gossett
    • Part Number : 109431
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    This item is obsolete.
  15. McDonnell and Miller 129302 model 42S low water cut-off and pump controller.
    McDonnell & Miller 42S Low Water Cut-Off & Pump Controller (129302)
    List Price $1,403.00 $998.13  / each
    SKU: MH1022
    4 in stock
    McDonnell & Miller model number 42S is a combination float-operated low water cut-off and pump controller for steam boilers that have a separate water column. This control features an automatic reset and two 120 volt, bi-metal, two-wire, single pole, single throw snap switches. Its maximum pressure is 50 psi and it has a tapped 1" FIP connection. Explore More
    • Manufacturer : McDonnell & Miller
    • Part Number : 129302
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    4 Repair Part(s)
    List Price $1,403.00 $998.13  / each
  16. McDonnell & Miller 129702 Model 42S-A - LWCO & Pump Controller
    McDonnell & Miller 129702 Model 42S-A - LWCO & Pump Controller
    List Price $1,801.00 $1,281.29  / each
    SKU: MH1023
    Ships within 2 business days
    McDonnell & Miller model number 42S-A is a combination float-operated low water cut-off and pump controller with quick hook-up fittings for steam boilers. This control features an automatic reset and two 120 volt, bi-metal, two-wire, single pole, single throw snap switches. Its maximum pressure is 50 psi and it has a tapped 1" FIP connection. Explore More
    • Manufacturer : McDonnell & Miller
    • Part Number : 129702
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    7 Repair Part(s)
    List Price $1,801.00 $1,281.29  / each
  17. McDonnell & Miller 129802 Model 42S-N - LWCO & Pump Controller
    McDonnell & Miller 129802 Model 42S-N - LWCO & Pump Controller
    List Price $1,511.00 $1,074.97  / each
    SKU: MH1023A
    Ships within 2 business days
    McDonnell & Miller model number 42S-N is a combination float-operated low water cut-off and pump controller with 1/2" IP gauge glass connections for steam boilers. This control features an automatic reset and two 120 volt, bi-metal, two-wire, single pole, single throw snap switches. Its maximum pressure is 50 psi and it has a tapped 1" FIP connection. Explore More
    • Manufacturer : McDonnell & Miller
    • Part Number : 129802
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    4 Repair Part(s)
    List Price $1,511.00 $1,074.97  / each
  18. McDonnell and Miller 162500 model 93-M low water cut-off.
    McDonnell & Miller 93-M Low Water Cut-Off & Pump Controller with Manual Reset (162500)
    List Price $2,693.00 $1,862.65  / each
    SKU: MH1074
    3 in stock
    McDonnell & Miller 162500 model 93-M is a combination float-operated low water cut-off and pump controller with manual reset and 1" NPT connections for steam boilers rated up to 150 psi. Explore More
    • Manufacturer : McDonnell & Miller
    • Part Number : 162500
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    8 Repair Part(s)
    List Price $2,693.00 $1,862.65  / each
  19. McDonnell and Miller 163200 model 93 combination low water cut-off and pump controller.
    McDonnell & Miller 93 Low Water Cut-Off & Pump Controller (162300)
    List Price $2,472.00 $1,709.81  / each
    SKU: MH1075
    2 in stock
    McDonnell & Miller model 93 is a combination float-operated low water cut-off and pump controller with 1" FIP tapped connections for steam boilers with a separate water column. This control features an automatic reset with standard number 5 single pole single throw switches. Its maximum pressure is 150 psi. Explore More
    • Manufacturer : McDonnell & Miller
    • Part Number : 162300
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    8 Repair Part(s)
    List Price $2,472.00 $1,709.81  / each
  20. McDonnell and Miller 163000 model 93-7B low water cut-off and pump controller.
    McDonnell & Miller 93-7B Low Water Cut-Off & Pump Controller (163000)
    List Price $3,493.00 $2,415.99  / each
    SKU: MH1076
    2 in stock
    McDonnell & Miller 93-7B combination low water cut-off and pump controller with automatic reset switch and 1" NPT pipe connections for steam boilers rated up to 150 psi. Explore More
    • Manufacturer : McDonnell & Miller
    • Part Number : 163000
    Add to Compare
    8 Repair Part(s)
    List Price $3,493.00 $2,415.99  / each
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Shopping Options
Category
Control Connection
  1. NPT 51items
Control Switch
  1. No. 2 1item
  2. No. 2-M 1item
  3. No. 5 8items
  4. No. 5-M 7items
  5. No. 7B 8items
  6. No. 7B-M 5items
  7. SWA-42S 3items
  8. SWA-150S 9items
  9. SWA-150S-M 7items
  10. N/A 2items
Discontinued
  1. No 55items
  2. Yes 10items
Brand
  1. Bell & Gossett 14items
  2. McDonnell & Miller 51items
M&M Series
  1. Series 93 4items
  2. Series 150S 5items
  3. Series 157S 11items
  4. Series 193 1item
  5. Series 194 1item
Application
  1. Hot Water Boilers 2items
  2. Steam Boilers 51items
Connection Size
  1. 1/2" 2items
  2. 1" 29items
  3. 1-1/4" 20items
Max Pressure
  1. 50 psi 8items
  2. 150 psi 29items
  3. 250 psi 12items
Max Water Pressure
  1. 150 psi 2items
Max Water Temp
  1. 120°F 2items
Control Reset
  1. Automatic 30items
  2. Manual 21items
Voltage
  1. 120V 51items
  2. 240V 51items
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