Product Description
Heavy-Duty Septic Ejector Pump for Residential Wastewater Applications
Product Overview
The Hydromatic SKV50 is a 1/2 HP sewage ejector pump for residential and commercial wastewater systems. This submersible wastewater pump handles up to 2-inch spherical solids and stringy materials. Plumbers frequently install this 120V sewage ejector pump with a vortex impeller in high-capacity sumps and septic tanks.
Quick Specs
Horsepower: 1/2 HP
Voltage: 115V
Discharge Size: 2" NPT
Solids Handling: 2"
Cord Length: 20 ft
Max Head: 22 ft
Flow Rate: 80 GPM
Key Features of Hydromatic SKV50 Sewage Ejector Pump
The high-capacity thermoplastic recessed vortex impeller efficiently processes up to 2-inch spherical solids without clogging
Heavy-duty Class 30 cast iron construction dissipates heat for cooler motor operation during long cycles
The oil-filled motor utilizes a lower single-row ball bearing to support the shaft and reduce friction
An automatic thermal overload protection system with an automatic reset keeps the motor safe during heavy loads
The wide-angle tethered piggyback plug float switch allows for easy maintenance and fast replacements
Carbon and ceramic-faced mechanical shaft seals provide a long-lasting life free of leaking
Hydromatic SKV50 Sewage Ejector Pump Specifications
Category
Details
Model Number
SKV50AW1 20-01 / MSKV50AW120
Motor Type
1/2 HP PSC with Thermal Overload Protection
Full Load Amps
12 amps
Phase / Hertz
1 Phase / 60 Hz
Speed
1750 RPM
Max Liquid Temperature
140°F (60°C)
Minimum Sump Diameter
Simplex: 18" / Duplex: 30"
Switch Turn On / Off
12-1/2" On / 6-1/2" Off
Maximum Capacity
80 GPM
Maximum Head
22 ft
Discharge Size
2" NPT
Solids Handling
2" (50 mm)
Agency Listing
CSA and cUL
Warranty
3 Year Limited
Performance Overview
This cast iron sewage pump 80 GPM capacity, easily moves wastewater over 20 feet of vertical lift, making the Hydromatic sewage ejector pump for 2-inch solids highly reliable.
Pump Performance – Head (ft) vs Flow Rate (GPM)
Flow Rate (GPM)
Head (ft)
0
21
20
20
40
19
60
17
80
15
100
13.5
120
11.5
140
10
160
9
180
7
Construction & Design
Category
Details
Body Construction
Class 30 Cast Iron
Motor Housing
Cast Iron
Seal Plate
Cast Iron
Pump Casing
Cast Iron
Impeller
Engineered Thermoplastic
Shaft
Stainless Steel
Mechanical Shaft Seal
Carbon/Ceramic Faces, Brass Body, Stainless Steel Spring, Buna-N Bellows
Fasteners
Stainless Steel
Lubricating Oil
Dielectric Oil
Power Cord
16/3 SJTW
Applications
Residential sewage wastewater transfer
High-capacity sump systems
Septic tank effluent pumping
Commercial sewage management
Underground waste removal setups
Basement bathroom additions
Why Choose the Hydromatic SKV50 Sewage Pump
You can buy a Hydromatic SKV50 sewage pump online to secure a durable, 2-inch solid handling sewage pump. If you require less output, consider the Hydromatic SKV40AW120-01. Available through Cleanflow, a trusted Hydromatic pumps supplier with distribution across Canada & USA. Upgrade your system with our Sewage Pump Accessories, like a combination ball/check valve, or view our full sewage pumps collection.
Frequently Asked Questions
What type of switch does the Hydromatic SKV50 sewage pump use?
This model uses a wide-angle tethered piggyback float switch.
What is the maximum temperature this cast-iron sewage pump handles?
The pump safely operates in ambient liquid temperatures up to 140°F (60°C).
Can this submersible wastewater pump handle stringy materials?
Yes, the vortex impeller design prevents binding from stringy materials.
Do I need a specific basin size for installation?
Minimum sump diameter is 18 inches for simplex and 30 inches for duplex systems.
What causes the thermal overload protection to activate?
It activates if the motor overheats due to jams, dry running, or voltage issues.
Does this pump require regular oil changes?
No, the oil-filled motor is sealed for life.
Can I run this 1/2 HP sewage ejector pump at a low lift height?
Operating below 10 feet of head is not recommended due to high flow and cycling.
Free shipping. Usually ships within 11 days. 
