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501

These Rubber Impeller pumps are made of high quality bronze of maximum corrosion resistance.  All shafts consist of stainless steel grade 303.  Top of the line models have ball bearings and mechanical seals while others have bronze or carbon bearings and lip type seals.  Impellers are made of Neoprene Rubber. Nitrile impellers are available as an option.  Flexible blades on the periphery of the impeller provide the pumping action.  While the impeller rotates the liquid between the blades is continuously squeezed out into the discharge port by a machined in cam located inside the pump chamber. 

This pump model is available as a pedestal style-bare shaft, clutch driven or SAE flange mount.

Note, the direction of the shaft rotation will determine inlet and outlet ports.

Pump will operate satisfactorily when mounted in any position. DO NOT RUN DRY. Rubber impellers generate high rubbing friction unless lubricated by liquid pumped and lack of liquid will cause impeller to burn up.

FEATURES

  • Bronze Construction - Corrosion Resistance
  • Machined-in Cam for Reduced Impeller Wear
  • Polytetrafluoroethylene (PTFE) Barrier Seals Protecting Ball Bearings
  • Mechanical Carbon Ring, Ceramic Face Main Pump Seal
  • Two Sealed Ball Bearings Spaced for Maximum Load Ability
  • Large Vent & Drain Openings Separate Seal & Bearing Areas
  • Shaft Slinger for Additional Bearing Protection
  • Neoprene (05) or Nitrile (06) Impellers
  • Stainless Steel Shaft
  • O-Ring Seal Between Body & Cover
  • Impeller easily replaced
  • Option: Flanged Engine Mount SAE ‘B’ Available

DRIVE

Either direct drive with flexible coupling or pulley drive can be used. Make sure both flexible coupling halves are properly aligned. When using pulley, do not over-tighten belt.

LIQUIDS & TEMPERATURES

DO NOT PUMP SEVERE SOLVENTS OR ACIDS.

Liquids compatible with neoprene (05) can be pumped, including fresh and saltwater solutions and mild chemicals. Nitrile (06) impellers can handle oil-contaminated water. When possible, flush pump with fresh water after each usage.

Extremes of cold and heat will affect impeller life. Limits of 40o to 180o F should be observed. Do not allow liquid in pump to freeze. Drain pump by loosening cover screws and use methyl alcohol based anti-freeze compounds such as Zerex®, Shell Zone®, Pyro Permanent®, Permagard®, or Dowgard®.

SUCTION LIFT

Suction lift of 15 feet is possible when impeller is wet. Suction lines must be air tight in order for pump to self-prime. A foot valve at the beginning of the suction line is recommended.

PERFORMANCE

501M 05 CURVE501M 06CURVE

EXPLODED VIEW & PARTS LIST

501E EXPL501 Parts Table Parts

501M Charts Sheet3

DIMENSIONS

501 CLUTCH DIMENSIONS501 FLANGE DIMENSIONS501M DIMENSIONS

INSTALLING ELECTRIC CLUTCH PARTS

1. Remove bearing end plate as shown in photograph.
2. Slide spacer ring (item 10) onto pump shaft against bearing.
3. Attach electric coil portion of clutch (item 3) to pump body using three screws item 6 previously removed.
4. Insert shaft key (item 5) into shaft key slot.
5. Slide pulley portion of electric clutch (item 2) onto pump shaft engaging the shaft key.
6. Slide spacer ring (item 10) onto pump shaft.
7. Install washer (item 7).
8. Install lock washer (item 8).
9. Install screw (item 9).

ADDITIONAL501M Hi Speed 501M Hi Speed501M Charts Sheet2 1501M Charts Sheet1