Lutz HD-E Medium-Viscosity Screw Drum Pump (Sanitary 316 Stainless Steel)
Updated: 2026-09-04
Lutz HD-E screw-type drum pump with 0.55 kW single-phase motor and sanitary 316 stainless steel pump tube, handling 500–4,000 cps at up to 20 L/min for acids, alkalis, oils, pigments and food ingredients.
Selection support
- Share flow rate, pressure, medium, temperature and material requirements.
- We can support pump selection, dosing package configuration and spare parts matching.
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Technical details
A conventional centrifugal drum pump loses flow rapidly as viscosity rises, and beyond a point will not move the medium at all. The Lutz HD-E uses a screw design that displaces a fixed volume per revolution rather than throwing liquid outwards with an impeller, so output stays stable through the medium-viscosity range of 500–4,000 cps. The sanitary 316 stainless steel pump tube makes it suitable for food and pharmaceutical ingredients.
Specifications
| Suitable media | Acidic and alkaline liquids, oils, pigments, foodstuffs and other medium-viscosity media |
|---|---|
| Motor | Single-phase, 0.55 kW |
| Pump tube material | 316 stainless steel (sanitary) |
| Max. flow rate | 20 L/min |
| Head | 4 kgf/cm² (approx. 0.4 MPa) |
| Viscosity range | 500–4,000 cps |
When to move from centrifugal to screw type
The deciding factor is viscosity, not motor power. For reference: cooking oil is roughly 50–100 cps, glycerine around 1,000 cps, honey 2,000–10,000 cps, and most paints and coatings fall between 100 and 2,000 cps.
Above roughly 500 cps, a centrifugal drum pump's actual delivery departs noticeably from its nameplate figure and a screw pump should be used instead. Beyond 4,000 cps the HD-E in turn reaches its limit, and the high-viscosity screw drum pump (up to 120,000 cps) is required.
Why the sanitary material matters
The sanitary 316 stainless steel tube has a polished internal surface with no dead spaces, making it easy to clean and resistant to product retention — as required in food and pharmaceutical production. The same property matters for pigments and inks, which cure if left in the tube: cured residue will seize the screw, so prompt cleaning materially extends pump life.
For inline measurement of dispensed quantities, add a Lutz TS series flow meter (rated to 4,000 cps). See the drum pump range overview for other series.