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McDonnell Miller Series 157 In Stock

McDonnell Miller Series 157 Low Water Cut-Off

Features and Benefits

  • For commercial and industrial low or high pressure boiler applications
  • For boilers of any steaming capacity
  • Monel bellows provides corrosion resistance
  • Snap action switches 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
  • 2 Single pole, single throw switches
  • 2 Single pole, double throw switches
  • Float block
  • BSPT threads
  • Maximum pressure 150 psi (10.5 kg/cm2)
  • Model 150S-MD Maximum differential operation – Prevents nuisance burner shutdowns in low pressure applications

 

Item Name: McDonnell Miller Series 157
Short description: McDonnell Miller Series 157
Manufacturer:
McDonnell Miller
Lead Time: Most items In Stock ready to ship!
Specifications - Replacement Heads
Part # Model # Description Weight Price  
173003 150S-HD McDonnell Miller 150S-HD Head Mechanism 13.50 $795.50 Add to RFQ
173203 150S-M-HD McDonnell Miller 150S-M-HD w/ manual reset
(Replaces 150S-M-HD)
14.00 $795.50 Add to RFQ
171640 150-E-HD McDonnell Miller 150-E-HD Obsolete - Replace with 150S-HD 14.00 Add to RFQ
Specifications - Complete Units
Part # Model # Description Weight Price Qty  
173502 157S McDonnell Miller 157S Low water cut-off w/ water column 43.00 $1,120.00 Add to Cart Add to RFQ
173600 157-MD McDonnell Miller 157-MD w/ maximum differential 43.00 $1,120.00 Add to Cart Add to RFQ
173700 157-A McDonnell Miller 157-A w/ alternate tapping 43.00 Add to RFQ
173800 157-A-M McDonnell Miller 157-A-M Obsolete - Replace with 157S-AM 43.00 Add to RFQ
175400 157-M McDonnell Miller 157-M LWCO W/Manual Reset 43.00 Add to RFQ
175410 157-M-MD McDonnell Miller 157-M-MD w/ maximum differential 43.00 Add to RFQ
176200 (Replaced by 176220) 157-R McDonnell Miller 157-R w/ alternate tapping 45.00 $1,310.00 Add to Cart Add to RFQ
177300 (Replaced by 172817) 157-R-M McDonnell Miller 157-R-M w/ manual reset 45.00 Add to RFQ
176501 157-RBP-MD McDonnell Miller 157-RBP-MD Obsolete
(Replace with 157S-RBP-MD)
53.00 Add to RFQ
176900 157-RL McDonnell Miller 157-RL Obsolete
(Replace with 157S-RL control w/alternate tapping)
45.00 Add to RFQ
171636 157E-RL-M McDonnell Miller 157E-RL-M w/ manual reset 45.00 Add to RFQ
Specifications - Replacement Parts
Part # Model # Description Weight Price Qty  
310462 SWA150S McDonnell Miller SWA150S Snap Switch for 150S 3.00 $331.00 Add to Cart Add to RFQ
348300 SA150-125 McDonnell Miller SA150-125 Mercury Switch, 2 wire
(Replace the Head that has the Snap Type Switch)
3.00 Add to RFQ
348200 SA150M-124 McDonnell Miller SA150M-124 Switch, 3 wire w/ Manual reset Obsolete
(Replace with 150S-M-HD)
3.00 Add to RFQ
348100 SA150-124 McDonnell Miller SA150-124 Mercury Switch, 3 wire
(Replace the Head that has the Snap Type Switch)
3.00 Add to RFQ
347900 SA150-106R McDonnell Miller SA150-106R Bellows Assembly 3.00 $241.00 Add to Cart Add to RFQ
354106 EA-157-S McDonnell Miller EA-157-S Short electrode for 157-RBP 3.00 $212.00 Add to Cart Add to RFQ
347600 SA150-11 McDonnell Miller SA150-11 Float and Rod 3.00 $246.00 Add to Cart Add to RFQ
325500PK 150-14H McDonnell Miller 150-14H Head gasket
(For raised face head flange, 8 holes), 6 pack
3.00 $46.50 Add to Cart Add to RFQ
354107 EA-157-L McDonnell Miller EA-157-L Long electrode for 157-RBP 3.00 $221.00 Add to Cart Add to RFQ
179150 PCH-G-A-2 McDonnell Miller PCH-G-A-2 Probe level control
(OBSOLETE NO REPLACEMENT)
5.00 Add to RFQ
348900 SA150M-436 McDonnell Miller SA150M-436 Cover for mercury switch, manual reset only 3.00 Add to RFQ
326950 SA150-436 McDonnell Miller SA150-436 Cover for all other models 3.00 $88.50 Add to Cart Add to RFQ
Electrical Ratings
Voltage Motor Switch Rating(Amperes)
120 VDC .5 Amp Full Load
Motor Switch Rating(Amperes)
120 VDC .5 Amp Locked Rotor
Pilot duty  
120 VAC 7.4 44.4 125 VA at 120 or 240 VAC Add to RFQ
240 VAC 3.7 22.2 125 VA at 120 or 240 VAC Add to RFQ
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