Product Description
Myers MS50D20 1/2 HP Diaphragm Activated Sump Pump Zinc Volute 20' Cord
Applications
Basement sumps, dewatering
Capacities
1/2HP at 56 GPM 212 LPM
1/3HP at 45 GPM 170 LPM
Shut-off head 25’, 7.6 m
Operation:
Tethered: On 14” 356 mm
Off 5” 127 mm
Vertical: On 7.5” 190.5 mm, Off 3” 76 mm
Diaphragm: On 9-1/2” 241 mm Off 5” 127 mm
Solids handling 1/4” 6.4 mm
Liquids handling Drain water
Intermittent liquid temp
up to 140°F up to 60°C
Motor
1/3 HP or 1/2 HP, PSC Motor
Electrical data
3000 RPM, 115V, 1Ø, 60Hz FLA 1/3 HP = 3.9, 1/2 HP = 4.1
Acceptable pH range 6-9
Shaft seal Double lip
Motor housing Corrosion Resistant Material
Volute case Cast iron
Power cord 10’ OR 20'
Discharge, NPT 1-1/2”
Min. sump diameter
Tethered Float:14” 356 mm
Vertical Float or Diaphragm Switch: 10” 254 mm
FEATURES
• Versatility for many
light-duty jobs
• Designed for drain water removal or permanent
applications with small amounts of debris
• Maintenance-free operation
• Wide-angle for 14” or larger sumps.Vertical switch or diaphragm switch for small 10” or larger sumps.
• CSA Listed
• Dual ball-bearing motor
and double lip seal
provide durability and
longer pump life
• Durable PSC motor
for years of service
• Oil-filled motor
for maximum heat
dissipation, continuous
bearing lubrication
• Thermal overload protection with automatic reset
