McDonnell Miller Series 157S In Stock

Manufacturer:
McDonnell Miller
Description:

McDonnell Miller Series 157S 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 157S
Description:

Replacement Heads
Model# Part# Description Weight, lbs. Price  
150S-HD 173003 Head Mechanism w/ snap switch 11 $526.68 RFQ
150S-M-HD 173203 150S-HD w/ manual reset 11 $526.68 RFQ
150S-MD-HD 173103 150s Maximum Differential 11 $526.68 RFQ
150S-M-MD-HD 173302 150S w/ manual reset & Max diff.
$Call
11 RFQ
Ordering Information
Model# Part# Description Weight, lbs. Price  
157S 173502 150 Low water cut-off w/ water column 39.7 $758.11 RFQ
157S-MD 173603 157 w/ maximum differential 39.7 $758.11 RFQ
157S-A 173702 157 w/ alternate tapping
$Call
39.5 RFQ
157S-A-M 173802 157-A w/ manual reset 39.5 $758.11 RFQ
157S-M 175402 157 w/ manual reset 39.7 $758.11 RFQ
157S-M-MD 175412 157-M w/ maximum differential
$Call
39.7 RFQ
157S-R 176220 157 w/ alternate tapping 42 $861.84 RFQ
157S-R-M 177306 157-R w/ manual reset 42 $857.85 RFQ
157S-RBP-MD 176503 157 w/ 2 integral conductance probes 51 $1,412.47 RFQ
157S-RL 176902 157 w/ alternate tapping 42 $857.85 RFQ
157S-RL-M 177006 157-RL w/ manual reset 42 $857.85 RFQ
Replacement Parts
Model# Part# Description Weight, lbs. Price  
SA150-106R 347900 Bellows Assembly 0.4 $147.64 RFQ
SA150-11 347600 Float and Rod 1 $155.62 RFQ
150-14H 325500 Head gasket (for raised face head flange, 8 holes), 6 pack 0.5 $34.00 RFQ
EA-157-S 354106 Short electrode for 157-RBP 0.5 $131.68 RFQ
EA-157-L 354107 Long electrode for 157-RBP 0.5 $131.68 RFQ
PCH-G-A-2 179150 Probe level control (OBSOLETE - NO REPLACEMENT ) 2.7 RFQ
SA150-436 326950 Cover 0.5 $48.68 RFQ
Dimensions
Model A B C D E F G H J K L
157 1 1/2 13 3/8 2 5/16 4 15/16 11 3/4 16 11.5 3.5 3/4 5 7/8
157S-A 1 1/4 3/4 13 3/8 2 5/16 4 15/16 11 3/4 16 11.5 3.5 3/4 5 7/8
157S-R 1 1/2 13 3/8 2 1/4 5 7/8 11 3/4 17 11.5 3.5 3/4 5 7/8
157S-RL 1 1/4 1/2 13 9/16 3 1/2 5 7/8 11 3/4 17 12.75 3.5 3/4 5 7/8
157S-RBP-MD 1 1/2 13 9/16 3 1/2 5 7/8 11 3/4 17 11.5 3.5 12 1/4
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
240 VAC 3.7 22.2 125 VA at 120 or 240 VAC
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