DSL/NSL/ESL series - Inline centrifugal pump
The DSL, NSL, and ESL series are vertical in-line centrifugal pumps with a space-saving design that can be easily installed in existing piping systems.
The DSL, NSL, and ESL series feature high efficiency, low NPSH requirements, easy installation, and low maintenance costs. The series includes inline centrifugal pumps used in a wide range of applications and markets.
NSL is a radial split, single-stage centrifugal pump in in-line design with connecting flanges according to international standards. The pumps can handle electric motors with different international flange dimensions.
Brand:
Rotan (DESMI)
Product Overview
Features and benefits
- The pump casing is equipped with a replaceable seal ring. The impeller has double-curved blades that ensure low NPSH values and high efficiency.
- The bearing unit is equipped with heavy-duty ball bearings; the smaller models have permanently lubricated ball bearings and the larger models have double ball bearings with grease nipples.
- This series is available with a built-in vacuum pump for self-evacuation.
- This series offers easy installation and convenient access for maintenance.
- The monoblock design requires no alignment and is available with or without ball bearings, as well as with a spacer coupling.
Applications
- Water – with or without additives
- Seawater
- Light oils, diesel, and gasoline
- Chemicals
- Fuel depots
- Cooling Water/Media
- Circulatory Systems
- Alcohol and Solvents
Specifications
- Flow rates up to 6,200 m³/h (DSL), 1,800 m³/h (NSL), 225 m³/h (ESL)
- Pressure up to 25 bar (DSL), 25 bar (NSL), 30 bar (ESL)
- Vertical, space-saving in-line design that can be easily installed in existing pipe systems
- Standardized mechanical seals with a wide choice of materials.
- Standard flange dimensions (DSL: 250-600, NSL: DN 65-400, ESL: DN 25-100)
- Standard flange dimensions (NSL: DN 65–400, ESL: DN 25–100) designed for installation with short-coupled IEC electric motors; standardized mechanical seals with a wide range of materials
- High efficiency and low NPSHr
- Handles max 3800 m³/h (NSL), 200 m3/h (ESL), 150°C and up to 500 cSt.
- Manufactured as standard in Cast Iron, Bronze - other materials on request such as AISI316L, SuperDuplex, SAF2507
- Available in ATEX versions and other options.
- Materials: Standard in Cast Iron, Bronze - other materials on request such as Ductile Iron, AISI316L, SuperDuplex, SAF2507.
- Temperature range: up to 140°C
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