McDonnell & Miller Series 157 Low Water Cut-off/Pump Controller With Maximum Differential 157S-MD 173603

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Brand: McDonnell & Miller
Part #: 173603
UPC: 751875036310
SKU
281-6121B91
Regular Price $4,928.29 Special Price $2,602.11

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McDonnell & Miller Series 157 Low Water Cut-off/Pump Controller With Maximum Differential 157S-MD

This McDonnell & Miller Series 157 Low Water Cut-off/Pump Controller is a reliable solution for residential, commercial, and industrial boiler applications, suitable for boilers of any steaming capacity. Its corrosion-resistant Monel bellows and float chamber with integral water column provide high-temperature service and snap action. The controller features a single pole single throw switch for pump control and a single pole double throw switch for low water cut-off and alarm actuation. Ideal for low or high-pressure boiler applications, it prevents nuisance burner shutdowns in low-pressure applications and operates at maximum pressure of 150 psi. Made in the USA, it ensures efficient and safe boiler operation.

Top product features:

  • Monel bellows provides corrosion resistance.
  • Float chamber with integral water column provides snap action for high temperature service.
  • 1 single pole single throw switch for pump control and 1 single pole double throw switch for low water cut-off and alarm actuation.

Top product applications:

  • Residential low or high pressure boiler applications
  • Commercial low or high pressure boiler applications
  • Industrial low or high pressure boiler applications

This item is NOT returnable.

For residential commercial and industrial low or high pressure boiler applications. For boilers of any steaming capacity. Monel bellows provides corrosion resistance. Float chamber with integral water column provided snap action for high temperature service - 1 single pole single throw switch for pump control - 1 single pole double throw switch for low water cut-off and alarm actuation. Optional features - manual reset - integral conductance probes for additional levels and greater operating differential-model 157s-rbp-md - 1" or 1-1/4" npt equalizing tapings - 1/2" or 3/4" npt tapings for gauge glass/tri-cock installations . Bspt threads. Maximum pressure 150 psi (10. 5 kg/cm2)model 157s-md maximum differential operation - prevents nuisance burner shutdowns in low pressure applications operating less than 50 psi (3. 5 kg/cm2). Made in the usa .

Additional Information

  • UPC: 751875036310
  • UNSPSC: 40101851
  • Brand: Mcdonnell & Miller
  • Package Quantity: 1
  • Country of Origin: US
  • FOB Origin: NY
  • Ships by: PARCEL
  • Comes in a kit: No
  • Newly added to catalog: No
  • Item is on Clearance: No
  • Contains Hazardous Materials: No
  • CA Proposition 65 Applies: No
  • Package Length: 21.00
  • Package Width: 16.00
  • Package Height: 17.00
  • Package Weight: 40.70
Product info last updated on April 9, 2025 7:30am UTC Category: Heating Parts and Components
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In stock