SDR Series Peristaltic Pumps — Ragazzini
The large-capacity Ragazzini SDR peristaltic pump range is designed to transport high flows of thick sludge and dense products over long distances or from deep suction points. Wide flow passages help protect shear-sensitive or fragile materials.
Applications include sludge removal in mining and...
Standard equipment
- No valves or conventional seals.
- Reversible flow by reversing the motor.
- Self-priming from depths of up to 9.9 m.
- Accurate dosing.
- Can run dry without damage.
- Suitable for CIP applications.
- The hose is the only regularly replaced wear component.
- Can pump products containing solid particles.
- No contact between product and mechanical pump parts.
Optional equipment
Materials
- Pump casing (stator): GS 500/7 ductile iron.
- Rotor: steel.
- Rollers: steel with double sealed bearings.
- Bearing-mounted main shaft: C45 + 18NiCrMo5 steel.
- Gaskets and O-rings: NBR/EPDM.
- Hose-guide cover: stainless steel and Plexiglas.
- Fittings: AISI 316 stainless steel; BSP, DIN 11851, Clamp, Tri-clamp, RJT, SMS, ANSI flange and DIN flange.
- Alternative fitting materials: PVC, PVCC, PVDF, PTFE and PP.
- Hose materials: abrasion-resistant natural rubber (NN); FDA CFR 21 and EC 1935 food-grade natural rubber (NP); nitrile (RN); FDA CFR 21 and EC 1935 food-grade nitrile (RF); EPDM (EP); Hypalon (HY).
- Accessories: leak detector.
- Pulsation dampeners: AISI 316 stainless steel compensators.
- Mounting frame: treated steel.
- Pump weight without motor: 1,670 kg.
Technical specifications
| Model | Maximum capacity (l/h) | Maximum pressure | Maximum suction lift | Hose diameter | Maximum temperature | Maximum solid particle size |
|---|---|---|---|---|---|---|
| SR 1 | 79.613 | 8–15 bar | -9,9 m | 114 mm | 95°C (EPDM) | 51 mm |
| SR 2 | 94.794 | 8–15 bar | -9,9 m | 127 mm | 95°C (EPDM) | 57 mm |
| DR 1 | 159.281 | 8–15 bar | -9,9 m | 114 mm | 95°C (EPDM) | 51 mm |
| DR 2 | 189.653 | 8–15 bar | -9,9 m | 127 mm | 95°C (EPDM) | 57 mm |
