McDonnell Miller Series 150

For residential, commercial, and industrial applications. For boilers of any steam capacity. Monel bellows provides corrosion resistance.
Mercury switches for high temperature service.
Maximum pressure 150 psi.

Replacement Heads

Model Number Part Number Description Weight lbs. Price
150S-M-HD
150S-HD
150-E-HD
150-E-M-HD
173203
173003
171640
171650
150-HD w/ manual reset
Head Mechanism with Snap Switch & Gasket
High Pressure Level Control
High Pressure Level Control Manual
12
11
12
12
$529.21
$529.22
$CALL
$CALL
 

Ordering Information

Model Number Part Number Description Weight lbs. Price
150S
150-B
150-B-M
150-J
150-SMD
150-M
150-M-MD
150-J-M
158
158-M
159
171702
171900
172100
172600
171800
172700
172800
172900
178400
178500
178800
Combination low water cut-off/pump controller
Replace with 150S p/n 171702 - 150 w/ float block
150-B w/ manual reset
150 w/ BSPT
Replace with 150-SMD / 150 w/ maximum differential
150 w/ manual reset
150-M w/ maximum differential
150-M w/ BSPT threads
150 w/ 2 SPDT switches
158 w/ manual reset
150 w/ 2 SPST swtiches
24.7
24.7
24.7
24.7
24.7
24.7
24.7
24.7
26.3
27.3
26
$578.68
$578.68
$Call
$Call
$573.81
$573.81
$Call
$Call
$Call
$Call
$Call
 

Replacement Parts (View parts cut sheet)

Model Number Part Number Description Weight lbs. Price
SA150-125 348300 No Longer Made / Replace the head that has the snap type switch 0.3 $Call
SA150-124 348100 3 wire 0.14 $Call
SA150M-124 348200 3 wire w/ Manual reset 0.3 $Call
SA150-106R 347900 Bellows Assembly 0.4 $153.33
SA150-11 347600 Float and Rod 1 $164.21
150-14H 325500 Head gasket (for raised face head flange, 8 holes), 6 pack 0.5 $29.95
EA-157-S 354106 Short electrode for 157-RBP 0.5 $131.45
EA-157-L 354107 Long electrode for 157-RBP 0.5 $131.45
750B-ENC 176345 Probe level control 2.7 $CALL
SA150M-436 348900 Cover for mercury switch, manual reset only 0.5 $CALL
SA150-436 326950 Cover for all other models 0.5 $50.03
 

Electrical Ratings

  Cut-off and Pump Curcuit Rating  
Voltage Full Load Locked Rotor Pilot duty
120 VAC 7.4 44.4 125 VA at 120 or 240 VAC
240 VAC 3.7 22.2  
 

Alarm Circuit Rating

Voltage Amps
120 VAC 1
240 VAC 1/2
 

Dimensions

A B C D E F G H J
5 7/8 12 7/16 6 13 1/4 3 5/16 9 15/16 4 1/8 3 7/16 1

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