McDonnell Miller - Series 157S

For residential, commercial, and industrial applications. For boilers of any steam capacity.
Monel bellows provides corrosion resistance.
Float chamber with integral water column provided
Snap action switches for high temperature service.
Maximum pressure 150 psi.

Replacement Heads
Model Number	Part Number	Description	Weight lbs.	Price
150S-HD	173003	Head Mechanism w/ snap switch	11	$529.21
150S-M-HD	173203	150S-HD w/ manual reset	11	$529.21
150S-MD-HD	173103	150s Maximum Differential	11	$529.21
150S-M-MD-HD	173302	150S w/ manual reset & Max diff.	11	$529.21
Ordering Information
Model Number	Part Number	Description	Weight lbs.	Price
157S	173502	150 Low water cut-off w/ water column	39.7	$756.73
157S-MD	173603	157 w/ maximum differential	39.7	$756.73
157S-A	173702	157 w/ alternate tapping	39.5	$756.73
157S-A-M	173802	157-A w/ manual reset	39.5	$756.73
157S-M	175402	157 w/ manual reset	39.7	$756.73
157S-M-MD	175412	157-M w/ maximum differential	39.7	$Call
157S-R	176220	157 w/ alternate tapping	42	$848.46
157S-R-M	177306	157-R w/ manual reset	42	$848.46
157S-RBP-MD	176503	157 w/ 2 integral conductance probes	51	$Call
157S-RL	176902	157 w/ alternate tapping	42	$848.46
157S-RL-M	177006	157-RL w/ manual reset	42	$848.46
Replacement Parts (View parts cut sheet)
Model Number	Part Number	Description	Weight lbs.	Price
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
PCH-G-A-2	179150	Probe level control (OBSOLETE REPLACE WITH 750B-ENC & 750B-P120 )	2.7	$Call
SA150-436	326950	Cover	0.5	$50.03

Electrical Ratings
Voltage	Cut-off and Pump Curcuit Rating		Pilot duty
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	125 VA at 120 or 240 VAC
Alarm Circuit Rating
Voltage				Amps
120 VAC				1
240 VAC				1/2
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 1/2	3 1/2	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 1/2	3 1/2	3/4	5 7/8
157S-R	1	1/2	13 3/8	2 1/4	5 7/8	11 3/4	17	11 1/2	3 1/2	3/4	6 1/4
157S-RL	1 1/4	1/2	13 9/16	3 1/2	5 7/8	11 3/4	17	12 3/4	3 1/2	3/4	6 1/4
157S-RBP-MD	1	1/2	13 9/16	2 1/4	5 7/8	11 3/4	17	11 1/2	3 1/2	NA	12 1/4

Contact Us Directly:

Toll Free: 1-800-780-3776
Int'l Phone: 770-957-9599
Int'l Fax: 770-957-9563
E-Mail: Email Your Request

Mailing Address: Power Plus International
143 McDonough Parkway
McDonough, GA 30253