Flow Setter – 22mm Compression x 1.1/2″ Pump Flange 8-28 L/min with Fill and Drain Valve

Designed for balancing and servicing underfloor heating (UFH) manifolds and secondary heating loops, this Flow Setter inline balancing valve combines precise hydronic flow measurement with direct pump flange mounting. Featuring a 22mm compression connection on one end and a standard 1-1/2″ swivel pump flange connection on the other, it fits seamlessly onto standard circulation pumps and manifold tail assemblies.

Equipped with a wide 8 to 28 L/min flow rate sight glass and an integrated fill and drain hose valve, it allows heating engineers to visually balance circuit flow rates, fill the loop, and purge air/debris during installation and annual maintenance without requiring extra fittings.

Key Benefits & Features

• Direct Pump Flange Connection: Features a 1-1/2″ female pump swivel nut for direct mounting onto standard UFH circulation pumps and mixing valves.

• Integrated Visual Flow Meter (8–28 L/min): Clear, easy-to-read sight gauge with an adjustable balancing indicator for precise hydraulic balancing across multi-zone systems.

• Built-in Fill & Drain Port: Integrated hose bib valve allows effortless system filling, chemical flushing, and air purging straight from the valve body.

• 22mm Compression Fitting: Standard 22mm compression fitting ensures leak-free connection to copper or barrier pipework.

• Heavy-Duty Brass Construction: Engineered for long service life, high thermal stability, and corrosion resistance in hydronic heating circuits.

• Optimizes Energy Efficiency: Prevents over-pumping and hot-spotting, ensuring even heat distribution across underfloor heating zones.

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DELIVERY OPTIONS:

We currently offer two shipping options to get your goods to you in a timeframe that suits:

Standard delivery to mainland UK (3-5 working days) – £9.99
Next working day delivery to mainland UK* – £11.99

*Next working day deliveries are subject to orders being placed before 1pm. The delivery window for next working day deliveries is between 8am and 5.30pm. 

All orders received after 1pm on a Friday (including weekend orders), that have upgraded to next working day delivery, will be despatched on Monday for a Tuesday delivery.

Bank holidays are treated in the same way as a non-working day, so please take this additional delivery time into account when ordering.

Pallet Delivery
Next day pallet delivery to mainland UK – £72.00

Special delivery requirements
Can’t see what you’re looking for? If you require a delivery option that is not offered as standard on the website, please contact our team. Where possible we try to accommodate additional requirements, including timed delivery options and deliveries to non-mainland UK addresses.

Please note: We rely upon the services of third party couriers, and whilst we endeavour to always deliver in a timely manner there are unfortunately a few occasions when the couriers fail to deliver on the appointed day and before the specified time. Whilst this happens rarely, we cannot be held responsible for the late delivery of an item, or any costs incurred by customers’ tradespeople unable to work. Please ensure that you have your materials before booking in any trades. If your product has been delayed, we will do our best to keep you informed of any new estimated time and date of your delivery.

NEED HELP?
Our customer support team is here to help with any queries about your order and delivery requirements.

Email: customerservices@tradeunderfloor.co.uk

Call: 01283 850040 

Monday to Friday | 8:30am – 4:30pm