Immersion fitting Niro 28-R-DL

Product information

Description
The Niro pump tube Niro 28-R-DL is a stainless-steel immersion pump tube designed for transfer and dispensing of low-viscosity, oil-based lubricants, cold cleaners and plasticisers. The sealless DL design eliminates media-contacting seals and avoids grease-filled housings. The rotor is made of ETFE and the drive shaft of stainless steel 1.4571. With a suitable drive (e.g. B2 Vario, B2 Battery or MD-200) the unit is suitable for medium to large dispensing volumes and can reach test flows up to 80 l/min and delivery heads up to 8 m wc depending on motor and conditions.

Applications / Examples of fluids

• Oil-based lubricants
• Cold cleaners
• Plasticisers
• Dispensing small quantities from hobbocks, canisters and drums
• Use in processes requiring reduced contamination risk

Properties & benefits

• Sealless DL design — no media-contacting seals
• No grease-filled housing — reduced contamination risk
• Optimised drum emptying
• Maintenance without special tools; fully demountable and cleanable
• Universal shaft bearing made from ETFE/PTFE for chemical resistance

Technical data

• Type: Niro 28-R-DL
• Pump tube material: Niro (stainless steel)
• Drive shaft (material): Stainless steel (1.4571)
• Impeller (material): ETFE (ethylene tetrafluoroethylene copolymer)
• Maximum flow rate (test, l/min): 80*
• Maximum delivery head (m wc): 8*
• Maximum immersion tube diameter (mm): 32
• Available immersion depths (mm): 500 / 700 / 1000 / 1200
• Maximum liquid temperature (°C): 90
• Maximum viscosity (mPas): 400
• Maximum admissible density (kg/dm³): 1.6
• Thread (outside, inch): 1"
• Impeller type / Drive type: Rotor (axial conveyor wheel)
• Sealing type: Sealless (DL) — no media-contacting seals

Compatibility & variants

• Compatible with B2 Vario (electric), B2 Battery (rechargeable) and pneumatic drives such as MD-200
• Multiple immersion lengths and tube diameters available to suit container opening and application
• Performance depends on pump variant, drive and medium; test values measured with water at ~20 °C