Submittal Sheet

ManualsBrandsMcdonnell & Miller ManualsHeating Supplies767, Float Type Low Water Cut-off w/ Built-in Blow-Down Valve (Steam)

EFGHJKLM N P

NPT NPT NPT NPT NPT

⁄32 (29.3) 3

⁄32 (186.5)

⁄8

⁄4 2

⁄16 (71) 5

⁄8 (137) 2

⁄2

⁄4 2

⁄64 (51.9) 3

⁄8 (92) 8

⁄32 (207) 9

⁄16 (246.6) 5

⁄2 (140)

• For residential and commercial low pressure boiler

applications

• For boilers of any steaming capacity

•2

⁄2" NPT body tapping for side mounting on boilers

• Lever-operated, full port ball valve for easy blow down

• Adjustable BX outlet for easy installation

• Dual precision switches for dependable operation of the

low water cut-off and alarm or electric water feeder

•

Large float chamber

• Maximum steam pressure 20 psi (1.4 kg/cm

)

Series 767

Low Water Cut-Offs

Dimensions, in. (mm)

(

Max. Swing)

Low Water Cut-Offs – Mechanical

For Steam Boilers

Ordering Information

Model

Part

Weight

Number Number Description lbs. (kg)

767 153700 Low water cut-off 8.5 (3.9)

Electrical Ratings

Motor Switch Rating (Amperes)

Voltage Full Load Locked Rotor Pilot Duty

120 VAC 7.4 44.4

125 VA at 120

240 VAC 3.7 22.2

or 240 VAC

Boiler Controls

McDonnell & Miller

Summary of content (1 pages)

PAGE 1
Boiler Controls McDonnell & Miller Low Water Cut-Offs – Mechanical For Steam Boilers Series 767 ® ® Low Water Cut-Offs • For residential and commercial low pressure boiler applications N B • For boilers of any steaming capacity A C J K 1 • 2 ⁄2" NPT body tapping for side mounting on boilers L • Lever-operated, full port ball valve for easy blow down M H D • Dual precision switches for dependable operation of the low water cut-off and alarm or electric water feeder Boiler Controls • Adjusta