50 Series

Keco strives to build the best, longest lasting, and most effective diaphragm pump on the market. Keco’s 50 Series pump (also known as the “Junior”) is a rugged, durable, and multi-purpose diaphragm pump, built to handle a variety of pumping applications. Assembled using all .5” stainless steel nuts and bolts, and treated with a triple layer coating, the Model 50 is built to last! New encapsulated valve packs provide tight seals and impressive suction with every stroke. If you demand a low-cost, versatile, all-purpose diaphragm pump, look no futher than Keco’s 50 Series.

Look Inside

All pump components are assembled using non-corrosive materials, and finished with the same innovative three layer coating process found on offshore oil rigs. This pump is designed specifically for pumping sewage, and can pass solids up to 1.5” in diameter. Maintenance on the pump is very infrequent and only requires two .5” wrenches.

Single Model 50 Single Model 50
Suction Hose Info

All Keco suction hoses are made from ethylene copolymer and are manufactured specifically for use in the marine environment. The hoses are capable of withstanding absolute vacuum and handle temperatures from -20°F to 150°F. Hoses are available in lengths of 20 – 70ft.

 Single Model 50
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Control Options

A variety of operator control options allow you to manage your pump effectively. If you need a specific control option, KECO will customize your pump to better accommodate your facility.

 Single Model 50
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Options Chart

Model 50 55
.75 HP 115/230 Volt* •  
.75 HP Rxp.Proof   •
On/Off Switch • •
On/Off Key •  
Push To Start w/Timer •  
Exp. On/Off Switch   •
Exp. Key On/Off   •
Exp.Proof Push To Start w/Timer   •
Exp. Push On/Off   •
*(TEFC - Totally Enclosed Fan Cooled)
  .75 HP Pump Motor OPT.
Pipe 2" 2.5" 3"
01 365 967 2900
02 350 967 2800
03 336 900 2700
04 325 867 2600
05 313 834 2500
06 300 800 2400
07 258 767 2300
08 275 734 2200
09 263 700 2100
10 250 667 2000
11 238 634 1900
12 226 600 1800
13 214 567 1700
14 202 539 1600
15 190 500 1500
16 178 467 1400
17 166 434 1300
18 154 400 1200
19 142 367 1100
20 130 334 1000
21 118 300 900
22 106 267 800
23 94 234 700
24 82 200 600
25 70 167 500
26 58 134 400
27 46 100 300
28 34 67 200
29 22 34 100
30 • • •

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