Sample Pumps for Analysers with Built-in Self-cleaning Intake Screens

From £1,715.00 (GBP)

The O1608-16 sample pump is a low head submersible filter pump with an integral self-cleaning filter for use with on-line analyser systems and dosing pumps. It is the most popular of our smaller filterpumps for use supplying samples protecting analytical equipment.

It produces a filtered output of fluid which prevents blockage to nozzles, valves and solenoids. This Filter Pump is available in single phase, with or without float switch.

The O1608-16 combines filtering and pumping directly from the source water being sampled.  It's ease of use and installation and extremely low maintenance has made this filter pump one of our most popular products.

Fitted with 60, 115 or 300 micron filter mesh, it can be used to filter sample water on its own or as a supply to our RF100ANQ On-line Analyser filter system. Watch a video

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Sample pump for analysers

Key Features

  • Removes suspended solids down to 60 microns
  • Pump and self-cleaning filter in one unit
  • Ease of installation
  • High reliability and easy to use
  • 7 metre maximum head
  • 150 litres per minute maximum flow
  • Suitable for on-line analysers
  • All Stainless Steel including impellers

Sample Pump for Analysers


Rotorflush Sample Pumps for Analysers with Built-in Self-cleaning Suction Intake

All our smaller submersible filterpumps can be used for sampling in dirty water conditions. We offer a range of filterpumps to meet varying flow rates and pressure requirements. Details of the full range of our smaller filterpumps can be found HERE.

Diagram showing sample pump for analysers with self cleaning intake filter being used with Rotorflush analyser filter system

The model most popular model for sampling raw water and final effluent sampling is the Omnia O1608-16. This is a low head sample pump for analysers with an integral self-cleaning filter.

The Omnia O1608-16s are ideal for use with on-line analysers and dosing pump systems because they have a built-in self-cleaning filter. This keeps the filter mesh and pump clear from debris and suspended solids. As a result the pump delivers an uninterrupted filtered sample supply for analysis.

It is ideal for use with chlorine, ammonia, phosphate and turbidity monitors. As a result it has been adopted as a sample pump of choice by UK water companies and suppliers of analytical instruments to the water industry.

Schematic showing how filter pump self cleaning filters work

The pump works in fluids contaminated with suspended solids, and can be used in combination with our RF100ANQ On-line Analyser Filter System

Models & Specification

Rotorflush O1608-16 and O25010-16 filterpumpsRotorflush self-cleaning filter nylon inserts mixed

The O1608-16 sample pumps for analysers have a maximum output of 150 litres / minute and a maximum head of 7 metres. They can be fitted with  or 60, 115 or 300 micron aperture nylon self-cleaning filter screens as standard. The filter mesh is made up of strong bias-cut nylon mesh inserts which are inexpensive and easy to replace. 50, 100 and 315 micron sintered stainless steel mesh, or coarser 1 mm, 2 mm and 3 mm woven steel mesh may also be fitted.

The O1608-16 filter pumps are available in 230v, 50Hz (CE marked European specification); the O25010-16 model is available as a 115v 60Hz US specification filterpump.


Omnia low head ample pump for analysers fitted with stainless steel self cleaning filter


Model Volts kW Outlet L/min Max Head (metres) Max Float Switch
O1608-16 (50 Hz) 230 0.4 1 ¼” 150 7 Optional
O2510-16 (60 Hz) 115 0.55 1 ¼” 220 9.5 Yes


Rotorflush O1608-16 and O25010-16 Performance Curves



Performance curve for Omnia Sample pumps for analysers with self cleaning filter - 230v 50Hz

Performance Curve for O1608-16 Sample Pumps for Analysers

Self-cleaning sample pump for analysers

 Performance Curve for O25010-16 Sample Pumps for Analysers


O1608-16 Sample Pump Dimensions

Dimensions (mm) O1608-16 O25010-16 (US Spec)
Height 453 491
Filter Diameter 220 220
Weight (Kg) 9.5 10

O1608-16 Sample Pump Self-Cleaning Intake Filter Construction

Omnia low head submersible sample pump for analysers with self cleaning inlet filter

Filter screen area 525 cm2
Screen sizes standard 60, 115 and 300 micron available
Screen material Standard is nylon mesh in polypropylene insert, sintered stainless steel is also available
Impeller extension shaft Acetal
Impeller 304 stainless steel
Rotor Acetal
Rotor Bearings Silicon Carbide / Acetal
Filter cage AISI 304



Please Note: Our sample pumps for analysers are designed for use in dirty water or liquids with a viscosity close to that of water. Our filters and filterpumps are NOT suitable for use in raw sewage or any other dirty water which contains oils or fat.



Rotorflush O1608-16 and O25010-16 filterpumps

Submersible pumps with integral 50, 100 & 300 micron nylon self-cleaning intake filters*

 Omnia sample pump with self cleaning filter for analysers

Sample Pumps for Analysers Model No.

Single phase

Single phase + float switch

Single phase 115v 60Hz UL marked + float switch

O25010-16MA/ 115v 60Hz


O1608-16M 230v 50-Hz




* 50, 100 and 315 micron sintered stainless steel mesh screens and 1 mm and 2 mm woven stainless steel mesh screens are plus £140.00p (GBP) per filter-pump exc. VAT and Carriage

Please note:

All our products are manufactured to order

Delivery is by carrier.  Contact us for latest lead times.

Carriage and packing charges are extra.

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    Below is the technical and maintenance information for the Sample Pumps for Analysers with Built-in Self-cleaning Intake Screens

    ...Frequently Asked Questions

    We know you'll have plenty of questions about how things work, what kind of questions to ask us and what we'll ask you. We also have downloadable information across the range of our products as well as a specific information on Filtration Knowledge.

    Read the FAQs