FlexEJ HVAC Team

24hr Shipping
On all stock items ordered.
Mon-Thur by 2pm, 10am Fridays

Design & Manufacturing
Full in-house design & manufacture to EN / ASME / PED.

ISO14001 Accreditation
FlexEJ has an accredited Environmental Management System.

Dosing Pots

All FlexEJ’s chemical dosing pots are carbon steel vessels and manufactured in the UK by FlexEJ. Our dosing pots are available on a 24hr shipping basis from our web shop, 3.5 litre sizes up to 25 litres and at great direct prices too.

We also design and build non standard capacities to order or as an OEM partner:

Chemical Dosing Pots in HVAC Systems

HVAC systems helpAll these products are designed to protect and optimise your heating or cooling system. These products are normally positioned as follows:
Air or Air & Dirt Separator ~ boiler flow lines.
Dirt Separator ~ boiler return lines.
Dosing pots ~ main flow and return.
Low Loss Headers ~ between the boilers and system.

FlexEJ's Chemical Dosing Pots

FlexEJ manufacture these robust value for money chemical dosing pots in the UK. Capacities from 3.5 litres to 25 litres and all standard sizes are available on a 24hr dispatch basis directly from our web shop. FlexEJ can also manufacture dosing pots to meet specific client requirements, please get in touch.

FlexEJ chemical dosing pot
FlexEJ Chemical Dosing Pots

3.5Ltr to 25Ltr


All our chemical dosing pots have:
  • Drain, Flow and Filling valves all DN25 PN40
  • Non return valve
  • Carbon steel body
  • Carbon steel tundish
  • Air release ball valve
  • Wall brackets
It is important that the dosing pot is correctly attached to the system to allow rapid chemical feed. Choose a location near a main pipe run or system header. Don’t forget to visit the web shop to check stock availability and direct pricing. For capacities and dimensions please see our catalogue or range tab above.

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Stock Dosing Pot Finder

Do try our chemical dosing pot product finder (below) to check if we have a stock item and specification that meets your needs. If not, we may well be able to build exactly what you want and far quicker than you might expect too. Call us on the usual 01384 881188 or use LIVE CHAT or drop a note or specification to us via our Get A Quote. We can also help with technicalities, drawings and whatever you need and can quote for OEM manufacturing to meet your exact volume needs too.

Stock Chemical Dosing Pot Finder

Please do search for FlexEJ dosing pots by volume/capacity, media or connection hardware (type):

3.5L FlexEJ Dosing Pot
3.5L FlexEJ Dosing Pot
5L FlexEJ Dosing Pot
5L FlexEJ Dosing Pot
10L FlexEJ Dosing Pot
10L FlexEJ Dosing Pot

Can't see what you want? Need help?
Call us. Or use Live Chat.

For instant advice. We can custom-design and engineer almost any expansion joint you need for delivery in the UK or worldwide. Call our expert team on +44 (0) 1384 881188 Or email us sales@flexej.co.uk

Frequently Asked Questions

A. All our stock chemical dosing pots come preconfigured using DN25 PN40 female-threaded ball valves. We can manufacture to other specifications but not from stock.

Please visit our full FAQ page to see all our frequently asked questions.