Sample Pump for analysers

From £1,427.00 (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 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 O1608-16 Sample Pump for Analysers with Built-in Self-cleaning Suction Intake

Diagram showing sample pump for analysers with self cleaning intake filter being used with Rotorflush analyser filter systemThe O1608-16 sample pump for analysers is a low head submersible filterpump with an integral self-cleaning filter. It is Schematic showing how filter pump self cleaning filters workideal for use with on-line analysers sand dosing pump systems.

The built-in self-cleaning filter delivers a continuous backwash to keep the filter mesh and pump clear from debris and suspended solids while delivering an uninterrupted sample supply for analysis. The self-cleaning Rotorflush filter is completely cleaned every ½ second keeping any solids away from the filter screen, preventing them entering your system.

It is ideal for use with chlorine, ammonia, phosphate and turbidity monitors and has been adopted as a sample pump of choice by UK water companies and suppliers of analytical instruments to the water industry. The pump works in fluids contaminated with suspended solids, and can be used in combination with our RF100ANQ On-line Analyser Filter System.

The O1608-16 low head filter pumps with integral self-cleaning intake filters have a maximum output of 150 litres / minute and a maximum head of 7 metres. They can be fitted with 1mm, 2mm and 3mm woven steel mesh, or 60, 115 or 300 micron aperture nylon self-cleaning filter screens as standard. 50, 100 and 315 micron stainless steel mesh options are also available.

Available in 230v, 50Hz (CE marked European specification) or 115v 60Hz US specification.


Models & Specification

Rotorflush O1608-16 Sample Pump for AnalysersRotorflush self-cleaning filter nylon inserts mixed

The O1608-16 intake can be fitted with a 1mm, 2mm and 3mm woven steel mesh, or 60, 115 or 300 micron nylon aperture self-cleaning filter screens.

The filter mesh is made up of strong bias-cut nylon mesh inserts which are inexpensive and easy to replace.

Sintered stainless steel mesh is also available in 50, 100 and 315 microns.

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 Sample Pump for analysers – Performance Curves


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

O1608-16 Sample Pump 230v 50Hz

Self-cleaning sample pump for analysers

O25010 Sample Pump 115v 60Hz

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

 Omnia sample pump with self cleaning filter 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 are plus £125.00p (GBP) per filter-pump exc. VAT and Carriage

Please note:

All our products are manufactured to order

Delivery is by carrier and is usually between 3 and 5 days from order depending on product and availability.

Carriage and packing charges are extra.

Can’t find what you need?  Want to talk with us directly?

We’re here to helpCall us on +44(0) 1297 560229

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Below is the technical and maintenance information for the Sample Pump for analysers

...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