Ideal when accuracy and repeatability is required in the dosage. They have a "Sandwich Type" diaphragm design.

Zero Leak pumps, ideal when high levels of safety are required.

Triplex Process Pumps, for high pressures, the main applications are dosing of oil.

A line of plunger and hydraulic double diaphragm metering pumps designed according to the API 675 standards.

The flexibility of using different materials in contact with the process fluid makes possible to then satisfy a wide range of dosing and mixing applications.

The compliance with ATEX directive makes SEKO pumps suitable for being installed even in classified areas.


  • Positive return type in different sizes
  • Internal worm gearbox, oil bath lubricated with low noise emissions
  • Rotating parts on bearings to minimize power consumption
  • Each mechanism comes complete with an internal gearbox; pumps with different speeds (strokes/min) can therefore be joined to form multi-head pump units, allowing a greater flexibility when selecting the pumps themselves.
  • Stroke adjustment with high precision can be achieved, both manually and automatically. Electrical and pneumatic servomotors designed by SEKO are available. Also an increase of turndown ratio can be achieved by frequency converter varying the speed of the electrical motor.

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Ideal for handling high volumes and medium pressures for low viscosity liquids.

There are different types of construction materials according to the fluid handled. Cast iron, stainless steel and special metals.

The fluid enters through the center of the impeller and some blades propel it towards the external part where the casing is located to direct it towards the discharge of the pump.


3C Triplex pumps
Designed according to API 674 Standards, they are the result of SEKO’s long experience in applications such as intensive and continuous industrial processes where reliability and durability are essential conditions.

Seko pumps features:

Integral lubrication system (no forced lubrication):

  • Higher reliability
  • Lower cost
  • Less maintenance parts
  • Small footprint
  • Easier installation & commissioning

Accurate mass balancing & ruggedness

  • Longer MTBF
  • Increased availability
  • Reduced parts wear

Lower weight-to-performance ratio

  • Lightweight baseframe structure
  • Optimized also for offhsore topsides installation
  • Simpler foundation design

Unique head design optimized for simple maintenance operations

  • Extended packing life
  • Increased productivity
  • Shorter downtime
  • Lower maintenance cost

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NEMO ® Progressive Cavity Pumps are used in all types of industry to move almost any type of product continuously, delicately and without pulsation. At the same time that it maintains the fixed discharge pressure it contributes constant flow proportional to the speed of rotation.

A broad field of application:

The equipment is particularly suitable for pumping products with the following characteristics:

  • High solids content (maximum particle size up to 150 mm)
  • Low or high viscosity (from 1 mPas to 1,000,000 mPas)
  • Thixotropic and dilatant
  • Sensitive to shearing
  • Lubricants or non-lubricants
  • Chemically aggressive (pH14)
  • Abrasives
  • Adhesives
  • Toxic

Other features

  • High suction capacity up to 9 m.c.a. (30 ft.a.)
  • Invertible direction of rotation (direction of flow)
  • Installation in any position
  • Smooth and silent operation
  • Working temperatures from -15 ° C to 300 ° C
  • Low maintenance pump
  • Easy and fast maintenance
  • Highly efficient electric motor
  • Local specialized service
  • Easy automation
  • Hygienically tested

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The AFX Peristaltic pump range has been designed to be a robust pumping solution for high viscosity, high solids (abrasive), high density slurries and liquids for a wide array of applications and industries including mining, chemical, food and beverage, pulp and paper, petrochemical, pharmaceutical, agricultural, water treatment and many more. Building on a proven concept our latest development is the AFX PUMP SERIES which was specially adapted to further improve the product's high performance, durability and low maintenance.


The internal workings of each pump comprise of a rotor block with solid rotating rollers. The pumping action results from alternately compressing and relaxing a specially designed high-pressure peristaltic hose between the pump housing and the pump compression rollers to create an airtight pocket. The fluid is pushed along the hose towards the discharge by the compression rollers, creating a positive displacement. The reopening hose behind the roller draws more fluid into the pump through the suction. Due to this method of operation where there is 100% hose closure at all time, the pump is on its own a non-return mechanism. This ensures excellent metering accuracy and reduces the need for additional equipment downstream.

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