SEKO's long experience has led them to develop specific products for the various applications on the various markets of which both SEKO and their customers have been leaders for years. SEKO specialized in the design and manufacturing of dosing and transfer pumps and systems; SEKO offers a whole range of plunger and diaphragm pumps with flow rates from 0,6 l/h to 60000 l/h and pressures up to 1200 bar.

The product range is completed by installations and dosing systems, including units for the preparation, dilution, storage and dosing of chemicals. Furthermore, SEKO can design and manufacture complex complete systems. SEKO currently supplies pumps and systems to the water treatment, steel, ceramics, foodstuff, paper, textile, pharmaceutical industries, oil & gas, energy and petrochemical.

Semi-Axial Turbine Pumps 6", 7", 8", 10", 12", 14" & 16"

APPLICATIONS
Suitable for lifting, pressurising and distribution in civil and industrial installations, autoclave and cistern inlets, fire fighting and washing plants, irrigation systems. Draws from wells, tanks or natural basins.

CHARACTERISTICS
The semi-axial hydrodynamic configuration reduces the diametrical dimensions of the hydraulic elements, obtaining modest pressures with average flows.

COUPLING
The pump may be driven by electric motor or diesel engine. The diesel driven pump will be connected via a right angle gearbox. The electric driven pumps may be coupled via a motor stool with independent thrust bearing non reverse ratchet and coupling or via a hollow shaft motor.

SPECIFICATIONS
The hydraulic specifications shown are based on use in cold water (15°C) at an atmospheric pressure of 1 bar and a density of 1000 Kg/m3.
As these pumps are made in series, they are guaranteed according to the UNI EN ISO 9906, attachment A, on request UNI EN ISO 9906, level 1.

• Fluid: chemically and mechanically non-aggressive, with a maximum solid substance content equal to the hardness and grain size of silt (40 g/m3)
• Maximum temperature: 30°C
• Maximum working pressure:

4” 23 bar
6” 39 bar
8” 35 bar
10” 30 bar
12” 31 bar

• Direction of rotation may clockwise or counter clockwise depending on pump selected and customer requirements.
• Installation: vertical / horizontal.

Submersible pumps

Semi-Axial Electric Submersible Pumps 6", 7", 8", 10", 12", 14" & 16"

APPLICATIONS
Suitable for lifting, pressurising and distribution in civil and industrial installations, autoclave and cistern inlets, fire fighting and washing plants, irrigation systems. Draws from wells, tanks or natural basins.

CHARACTERISTICS
The semi-axial hydrodynamic configuration reduces the diametrical dimensions of the hydraulic elements, obtaining modest pressures with average flows.

COUPLING
The pump is formed by an electric motor type:
10'' MS 201 or MS 251
The flanging of connection to the motor and the shaft projection comply with the following standards:
10'' NEMA 1-18.424 standard for MS 201

SPECIFICATIONS
The hydraulic specifications shown are based on use in cold water (15°C) at an atmospheric pressure of 1 bar and a density of 1000 Kg/m3.
As these pumps are made in series, they are guaranteed according to the UNI EN ISO 9906, attachment A, on request UNI EN ISO 9906, level 1.

• Fluid: chemically and mechanically non-aggressive, with a maximum solid substance content equal to the hardness and grain size of silt (40 g/m3)
• Maximum temperature: 30°C
• Maximum working pressure:

4” 23 bar
6” 39 bar
8” 35 bar
10” 30 bar
12” 31 bar

• Direction of rotation: Looking by the outlet, anticlockwise for pumps 4"-6"(NR152) and clockwise for pumps 6"-8"-10"-12".
• Installation: vertical / horizontal.
  

CHARACTERISTICS
Centrifugal multistage horizontal pumps driven by elastic or hydro-dynamic coupling, anti-clock wise rotation looked from drive side.

Components
Suction body with axial inlet; intermediate stage composed of stage body and the corresponding diffuser with wearing rings. Replaceable impeller seats.
Delivery body with upward outlet, with the possibility of turning it at 90°C., both directions. Drive side bearing support with high rigidity. Suction side support of sliding type, lubricated by the pumped liquid. Shaft in stainless steel completely protected. Adjustable packing seal on the shaft, in alternative not balanced or balanced mechanical seal, according to the working pressure.

External tie rods for tightening of the intermediate stages.

SPECIFICATIONS
Flow rate : up to 230 m3/h
Head : up to 400 m
Speed : 1450 – 3500 R.P.M.
Inlet PN 16
Outlet PN 40
Maximum working pressure : 40 bars
Temperature of pumped liquid: min.: -15°C. max.: 120°C.
Ambient Temperature (group of electric pump): max. 40°C. (please, request verification for higher temperatures).
The pumped liquid has to be chemically and mechanically suitable for the utilized materials.

The coupling is obtained by means of a block with ball bearing on which the pump shaft is secured and integrated with a rigid coupling.
The pump body is standardised in compliance with UNI-EN 733.
The motor unit and the rotating part of the pump can be taken away without removing the pump body from the system piping.

SPECIFICATIONS
Flow rates up to 255 m3/h, pressure heads up to 98m at 2,950 1/min.
Temperature of liquid pumped: -15C° to +120C°.
Special versions on request.
Maximum working pressure: 10 bar
Maximum ambient temperature: 40C° (please, request verification for higher temperatures).

Mechanical seal in carbon/ceramic, rotor shaft in stainless steel with seal for life bearings.
Totally enclosed fan cooled motor (TEFC).

Single phase motors with a built in thermal overload protection on request, the capacitor is permanently in circuit.
Motor protection to IP44.

Winding insulation to class B (for motors of size 63), F (for other sizes.
Standard voltage: 230V- 50Hz single phase, 230V/400V- 50Hz three phase.
Other voltages and frequencies available upon request.

SPECIFICATIONS
- Capacities up to 4.2 m3 / hr
- Heads up to 88 meters
- Liquid quality requirement is clean and free from solids or abrasive substances and non aggressive
- Maximum temperature of pumped liquid - 15°C to +70°C
- Maximum ambient temperature 40°C.

For higher temperatures please contact the sales office.
Maximum working pressure 9 bar.
The tolerances of the hydraulic features are according to UNI / ISO 2548-Class C Appendix B electric features according to C.E.I.

The working features listed in the catalogue are based on continuos service for clear water with a specific weight of 1000 kg/m3.

Manometric suction lift of 8 meters with a foot valve fitted, for a suction lift of above 5 meters it is advisable to install the suction pipe with a internal diameter larger than the pump inlet.