
S Series - Small
Rotho S26 Peristaltic Pump
The largest S series pump delivering high flow rates while maintaining compact dimensions for demanding small-scale applications.
Max Flow Rate
835 GPH
Max Pressure
218 PSI
Tube ID
26 mm
Displacement
0.1 Gal/Rev
Performance Specifications
Maximum Flow Rate835 GPH (3,160 LPH)
Displacement0.1 Gal/Rev (0.38 L/Rev)
Maximum Pressure218 PSI (15 BAR)
Maximum Suction Lift29.5 ft (9 m)
Maximum Speed130 RPM
Physical Specifications
Tube Inner Diameter26 mm (1.0 in)
Connection Size1 1/4"
Max Temperature185°F (85°C)
Motor Options3 HP, 2 HP, or Keco Drive
Drive TypeVFD or Keco Drive

Required Motor Power
Performance curve showing HP (kW) requirements at various operating pressures
Flow Rate & Capacity
| Pump RPM | Capacity GPH | Capacity LPH |
|---|---|---|
| 0 | 0 | 0 |
| 20 | 119 | 451 |
| 40 | 239 | 903 |
| 60 | 358 | 1,354 |
| 80 | 477 | 1,806 |
| 100 | 596 | 2,257 |
| 120 | 716 | 2,709 |
| 140 | 835 | 3,160 |
Curves shown at: 218 PSI, 116 PSI, 58 PSI, 29 PSI
Standard Features
Leak Detection
Auto-shutdown on hose failure
Clear Window
Visual inspection access
Modular Design
Easy maintenance
Integral Gearbox
Maintenance-free coupling
Ideal Applications
Construction
Grout, mortar, and slurry pumping
Mining
Abrasive tailings and reagent dosing
Water Treatment
Chemical dosing and sludge transfer
Industries this pump serves: Pharmaceutical, Water Treatment, Chemical Dosing.
The Rotho peristaltic pump solved our problems because of its high resistance to abrasive sludges — and with no seals or valves, maintenance costs dropped dramatically.— MARAZZI Engineering, Ceramics & Tile Manufacturing