Zoeller M267 waste-mate is a US made automatic submersible sewage pump. It has two variants, automatic and nonautomatic. It is a float-operated sump pump. It features a split phase motor with a capacity of 1/2 HP. The pump's motor runs off 1-PH or 3-PH, 115 – 460 VAC, 60 Hz input voltage. The rotating speed of the 3-phase motor is 1750 revolutions per minute (RPM). The maximum flow rate of the M267 pump is 128 GPM (484 LPM), and the maximum discharge height is 21.5 feet (6.6 m). The use of robust construction materials ensures long durability for the pump. The following story is a humble effort from us to share our insight about the Zoeller M267 sewage pump.
Key Features of Zoeller M267 Sewage Pump
The motor is the heart of a sump pump. Zoeller M267 submersible sewage pump features a permanent split capacitor (PSC) motor. It is a split-phase or 3 phase motor that works on 115 – 460 VAC, 60 Hz input power. It is a 1/2 HP motor and consumes between 1.5 – 9.4 Amps of current. This motor rotates at 1750 revolutions per minute (RPM). It is an oil filled motor with class B insulation. The motor's cool-run design allows it to be quiet and efficient.
Automatic Float Switch
Zoeller M267 waste-mate is a float switch operated pump. Zoeller sewage pump 1/2 HP has an integral float switch. It is a mechanical snap action, 2-pole automatic float switch. The float switch automatically switches the pump ON and OFF according to the water level. It automatically turns ON the pump at 12-1/2” (31.8 cm) water level and turns the pump OFF at 4-1/2” (11.4 cm) water level.
Zoeller 1/2 HP Sewage Pump 267-0001
Long Lasting Construction
The M267 Zoeller sewage pump is industry-proven for durability and longevity. All the hardware of this Zoeller M267 1/2 HP pump is ASTM Class 25 cast iron, engineered plastic, and stainless steel structures. Following are the details of the construction.
- The base of the pump is engineered plastic.
- Motor housing, pump housing, and switch cap are sturdy card iron.
- The seal assembly, float guard, fasteners, switch arm, handle, bolts, and screws are stainless steel.
- The impeller is engineered plastic with a metal insert.
- The motor shaft is of AISI 1215 cold rolled steel.
- The power cord and plugs are of neoprene.
Zoeller M267 sump pump is a robust pump proven for reliable performance. It can discharge at a maximum flow rate of 128 GPM (484 LPM) and 85 GPM (322 LPM) at 10 feet height. The highest head of this pump is 21.5 feet (6.6 m). The maximum operating temperature of this Zoeller sewage pump package is 130 °F (54 °C). A noble advantage of Zoeller M267 - 1/2 HP is that it can pass 2-inch (50 mm) spherical solids. Overall this is a problem-free system.
Next Generation Vortex Impeller
The impeller of the M267 Zoeller sewage pump system is a non-clogging vortex type. It employs centrifugal force to push fluids against the volute of the pump. The impeller's design is innovative in that its vanes never come in contact with the fluid while the M267 Zoeller pump operates. Such a design allows the impeller to remain clear of debris and dirt. Also, it eliminates the possibility of clogging.
Safety & Protection
The body of the Zoeller 1/2 HP sewage pump can dissipate heat. An Auto reset function protects the motor from damage by thermal overload. A powder-coated epoxy finish ensures the highest resistance against corrosion. All the protective features allow the Zoeller M267 pump to deliver peak performance even in extreme environments.
Seals and Bearings
The Zoeller M267 pump is a hermetically sealed system. A neoprene gasket provides watertight and dust-tight sealing to the motor during submersible pumping. The Zoeller 260 series pump features two sleeve bearings at the upper and lower ends. The sleeve bearings run in an oil bath to ensure a smooth and soundless pump run. The mechanical seals of the motor shaft are carbon and ceramic.
The Zoeller M267 ejector pump is suitable for residential and light commercial usage. It can transfer waste to septic tanks or sewage systems, remove groundwater, lift stations, dewater, pump wastewater, submersible sewage, new construction, effluent transfer, etc.
Discharge outlet of Zoeller M267 1/2 HP sewage ejector pump is 2-inch NPT. The pump includes a UL listed power cord. Automatic models will have a power cord of 10 feet (3 m) while nonauto models will have 15 feet (5 m) power cord.
Warranty on Zoeller M267 Sewage Pump & Certifications
Zoeller sewage pump M267 is an impressive sump pump that holds many certifications. It is certified by Canadian Standards Association (CSA), Sump and Sewage Pump Manufacturers Association (SSPMA), and Powder Coated Tough (PCT). After assembly, it goes through quality tests at the factory. Further, it is a UL tested product. Zoeller "M267 pump" carries a 3-years warranty.
Zoeller 1/2 HP Sewage Pump 267-0001
Video: Advantages of Vortex Impeller
FAQs About Zoeller Sewage Pump Model 267
Q: Why does Zoeller Sewage Pump 267 not shut off automatically?
The float operates the switch of Zoeller M267. Ensure that the float freely moves up and down on the rod it is attached to. A Manual raising and lowering of the float should give an audible noise of clicking the switch. If there is no click sound, indicate a faulty internal switch.
Q: The switch of Zoeller M267 waste-mate sewage pump clicks on but doesn’t pump water while giving continuous slurping noise?
Inspect the following issues
- A 3/16-inch vent hole is drilled on the vertical discharge pipe to let air in.
- The float switch should be at a proper height that allows the pump to fully submerge in water during operation for cooling the pump.
- The base of the well should be clear of debris.
- No object should be injected into the impeller/intake, preventing it from turning.
- Take the pump out and unscrew the bottom housing. Make sure that the impeller can rotate freely.
Zoeller M267 sewage pump is an efficient sump pump. It is reliable, cost-efficient, and easy to install. Internal components of this pump are highly economical, making their repair and replacement doable at a reasonable cost. We hope the descriptions in the Zoeller M267 review help conclude a buying decision about this pump. Tons of happy returns!