Description

Bronze self priming pump with bronze pump head and impeller with side liquid ring, widely used in the nautical sector to empty bilges, fire-fighting and transfer liquids such as freshwater, seawater, and diesel-oil

 A liquid-ring pump is a rotating positive-displacement pump The function of a liquid-ring pump is similar to a rotary vane pump, with the difference being that the vanes are an integral part of the rotor and churn a rotating ring of liquid to form the compression-chamber seal. They are an inherently low-friction design, with the rotor being the only moving part. Sliding friction is limited to the shaft seals

This type of pump is great for situations where priming can be an issue, there is however a trade of as the disruptive action of the impeller can increase noise in the system

The earliest liquid-ring pumps date from 1903, and for liquid-ring vacuum pumps and compressors in 1914

Bronze self priming pump Motor Detail:

Direct current: 

• Wound field electric motor 24V DC
• Protection IP23
• Insulation Class F
• Continuous Duty (S1)

Alternating current:

• Induction electric motor
  • 110V single-phase (available on request)
  • 230V single-phase
  • 230~400VAC Three-phase
  • 400~690VAC Three Phase
• Protection IP55
• Insulation Class F
• Continuous Duty (S1)

Scope of operation: Liquids free of solid impurities
Temperature range of the liquid: from +0 to +70 °C
Max. suction depth: 6 m (4m for 020 and 020MP models)
Static pressure inside the pump body: 6 bar max

Bronze self priming pump Construction features:

Pump body: Bronze
Impeller: Bronze
Pipe fittings: Bronze
Shaft: AISI 316 Stainless steel
Mechanical seal: ceramics-graphite-NBR (special corrosion resistant)

Data Sheet – CEM Bronze Self Priming pumps

Manufacturer’s page for the product

ABOUT CEM PUMPS AND BLOWERS

Established in 1970 C.E.M. elettromeccanica S.r.l. has been a leading manufacturer of electric pumps and DC motors primarily focussed for use in the maritime sector
In the 48 years, we have been making motors and our constant expansion in the national and the international markets have resulted in the broadening of our extensive product range

…highest quality materials…design…innovative production processes…remarkable lifespan…

This makes us the ideal partner for large and medium-sized boat builders of pleasure, fishing and military vessels.

Our extensive range now includes:

• DC and AC electric pumps
• Belt driven pumps, with manual or electromagnetic clutch
• hydraulically driven pumps
• water pressure systems
• centrifugal and axial blowers
• diesel driven pumps
• manual pumps
• DC motors

Our commitment to using the highest quality materials used, the special care invested in the design and in the innovative production processes we adopt, we are able to offer excellent performances and a remarkable lifespan of our products exactly what you need when our product can offer extra hours of safety when in difficulty

The CEM factory is based in Nonantola close to Modena in Italy, and is a family-owned business with generations of experience in the manufacture of pumps, blowers and electric motors

All of our products are built to standards that are in accordance with classification and certification can be obtained from each of the bodies: Bureau Veritas, Det Norske Veritas (DNV), Lloyd’s Register and RINA