Low Water Cutoffs
Series 63, 64, 764, 67, 69, 150, 157, 764, 42, 93, 94, 193, 194

McDonnell Miller Low water cut offs, whether snap switch or probe-type models, provide a reliable method of controlling a boiler feed pump. Mounted at the boiler water line, it starts and stops the pump as the boiler water dictates. Consequently, it holds the boiler water level at the limits recoended by the boiler manufacturer to maintain maximum steaming efficiency.

Water Feeders
Series 101-A, 47, 51, 53, 247, 21, 551, 847, 851, 47-2, 51-2, 53-2, 247-2

McDonnell Miller Water Feeders open if the boiler's water line drops to the feeder / cut-off combination's feeder operating point.  The feeder will open mechanically and add water to the boiler.

Switches
No. 2, 5, 7-B, 11
 

The McDonnell Miller is the brains of the Water Feeders and Low Water Cut Off. The switch tells the boiler when to turn on or off depending on the level of water in the boiler.

Liquid Flow
Series FS4-3, FS4-3T, FS5, FS8-W, FS1, FS1-W, FS6, FS6-W

The flow of liquids in pipelines plays an important role in industry and coerce. Under most circumstances it is essential to know whether or not there is a flow in a pipeline, and to act upon that knowledge.

Replacement McDonnell & Miller Controls and Parts

TRAP FT075C-6 1-1/2" 75 404

TRAP FT0175C-8 2"175 40189

TRAP FT015H-3 3/4 15# 40420

TC-L #317353

TC-4 #195000

T-5R-120V #112000 (5S TIMED

SWA150S #310462 (SNAP SWITCH)

SA91-60 FLOAT #345700

SA64-30 #343600 FLOAT ASSY.

SA64-2 #343500 BELLOWS ASSY

SA53-6 #342800 (VALVE ASSY)

SA51S-6 VALVE ASSY. #342100

SA51-9R #342300 (STRAINER A

SA51-9 STRAINER ASSY. #34220

SA259-24 #351800 UPPER QK H

SA21-6 #339500 (VALVE ASSY.

SA159-24 #349500 LOWER QK H

SA150-125 #348300

SA150-124 #348110

SA150-11 FLOAT #347600

SA150-11 #347600

SA150-106R #347900

SA101-38 #347100

RS-1-LP #176203

RS-1-BR-1 #179524

PS-851-M-120 #153896

PS-851-120 #153895

PS-801-M-120 #153880

PS-801-120 #153875

PROBE 24" 179535

PROBE #179530 X 12"

PFC-1-GR #180801 (PNEUMATIC)

PFC-1G #180800

PA-800 #354081 PROBE

FS7-4 #119700 (FLOW SWITCH)

FS4-3 #114400 (FLOW SWITCH)

FS4-15RP #336101 (PADDLE KIT)

94M-HD #166000

94M #165900 (HI PRESSURE LE

94-HD GASKET #323300

94-HD #165300 (HEAD MECHANISM)

94-7B-HD #166400 (HEAD MECHANISM)

94-7B #166300 (HI PRESSURE

94 FLOAT BALL #345700

94 #165200 (HI PRESSURE LEV

93-M # 162500 LOW WATER CUT

93-HD #325400 (GASKET)

93-HD #162400 (HEAD MECHANISM)

93-7B-M Low water cutoff #163100

93-7B-HD #163200 (HEAD MECHANISM)

93-7B #163000 (HI PRESSURE)

93 #162300 (HI PRESSURE LEV

7B-1R #309000 (RESISTOR / S

7B #110800 (PROPORTIONING L

767 #153700 Low water cutoff

764 Low water cutoff 144500

764 #144500 (LOW WATER CUT

750-T-120 #176206 (LOW WAT

750-MT-120 #176207 (LOW WAT

750-C-3 #176329 REMOTE CHAM

750-C-3 #176316 CHAMBER 3 P

750B #176314 TRI FUNCTION M

750B #176312 SERIES DUAL FU

67-HD 153825 #6667 (LOW WAT

67-12 #318800 GASKET

67 #149400 (LOW WATER CUT-O

64M #144250 LOW WATER CUT-O

64-A #143700 (LOW WATER C

64 #143600 (LOW WATER CUT-

63-M-HD #143200

63M #143100 (LOW WATER CUT

63-HD GASKET #302600

63-HD #142600 (HEAD MECHANISM

63 #142400 (LOW WATER CUT-O

61 #140100 (LOW WATER CUT-O

5M #110400 (SWITCH 2 LEVELS

53-HD #137000 (HEAD MECHANISM

53-2M #137200 WATER FEEDER

53-2 #137100 (WATER FEEDER

53 #136900 (WATER FEEDER)

51S-HD #135800 (HEAD MECHANISM)

51S-2M #136000 (WATER FEEDER

51S-2 Low water cutoff #135900

51S #135600 (WATER FEEDER)

51-HD #134900 (HEAD MECHANISM

51-2M #135200 (WATER FEEDER

51-2 #135000 (WATER FEEDER

51 #134700 (WATER FEEDER)

5 #110300 (SWITCH 2 LEVELS)

47-2M #132900 (WATER FEEDER

47-2 REPAIR KIT 351800 #SA2

47-2 #132800 (WATER FEEDER

47 #132700 (WATER FEEDER)

42S-N #129802 (PUMP CONTROL

42A #129700 (PUMP CONTROL

42 #129300 (PUMP CONTROLLER

401884 OVERFLOW TRAP 2"I

401884 OVERFLOW TRAP 2 1/2

345700 FLOAT ASSEMBLY

310452 CTRD51

2M #110100 (CUTOFF / ALARM

27W #127200 (MAKE-UP WATER

25-A HD #127100 666.09

25A #126800 (MAKE-UP WATER

247-2-M #133900 Low water cutoff WATER

247-2 #133800 (WATER FEEDER

21-HD #335400 (GASKET)

21 #126400 (MAKE-UP WATER F

21 #126400

2 #110000 (CUTOFF / ALARM S

194-M #166900

194B PRIM Low water cutoff 250# 166701

194A-7B #167100 (HI PRESSURE)

194-7B #167200 (HI PRESSURE

194 #166600 (HI PRESSURE LE

193B-7B #164700

193B #163600 (HI PRESSURE L

193-A-M#164200 HI PRESSURE

193-A-M #164200 MAN. RESET

193A-7B #164500 (HI PRESSURE)

193A #163500 (HI PRESSURE)
193-7BM #164525

193-7B #164400 (HI PRESSURE

193 #163400 (HI PRESSURE LEV

159 #178800 (HI PRESSURE LE

158S #178402 (HI PRESSURE L

157S-RL #176902 (HI PRESSURE)

157S-MD #173603 (HI PRESSURE)

157S-M #175402 (HI PRESS LE

157SA 173702

157S #173502 (HI PRESSURE L

157RL #176900 (HI PRESSURE

157R #176200 HI PRESSURE LE

157M #175400 (HI PRESSURE L

157E-M #171630 HI PRESS LVL

157E CONTROL BOX COVER

157E # 171620 HI PRESSURE L

157A #173700 LEVEL CONTROL

157 MD #173600 (HI PRESSURE

157 CONTROL BOX COVER

157 #173500 (HI PRESSURE LE

150S-M-HD #173203

150S-MD-HD #173103 MAXIMUM

150S-M #172702 (HI PRESS LE

150S-HD #173003 (HEAD MECHANISM)

150S #171702 (HI PRESSURE L

150-M-HD #173200 (HEAD MECHANISM)

150M #172700 (HI PRESSURE L

150-HD #173000 (HEAD MECHANISM)

150E-M (#171610)MANUAL RESET

150E-HD #171640 (REPLACEMENT HEAD)

150E Low water cutoff CONTROL #171600

150-14 #325400 (GASKET)

150 #171700 (HI PRESSURE LE

14-B #310447 (BLOWDOWN BALL

11-MV #309200 MILLIVOLT SER

11M #309151 (CONVERSION/REP

11 #309100 SWITCH