20501S1

Flow Setter 1″ Male x 1″ Male

Lifetime Technical Support

Fast UK Delivery

Design Services Available

Trusted for over 20 years

Have a large project?

With our design services, we can give you a bespoke and accurate quote. Just fill out our quotation form and one of the team will get back to you!

The Flow Setter 1″ Male x 1″ Male BSP is a high-performance manual balancing valve designed to optimise hydraulic efficiency in modern heating and cooling systems. Engineered specifically for applications like underfloor heating manifolds, air source heat pumps, and solar thermal systems, this robust brass valve ensures precise fluid distribution across all circuits.

Featuring an integrated, easy-to-read flow indicator scale, the Flow Setter 1″ allows installers and engineers to measure and read current flow rates instantly—without the need for external gauges, charts, or specialised diagnostic tools. The built-in regulating ball valve enables effortless micro-adjustments, ensuring your system operates at peak efficiency, eliminating cold spots, and reducing energy consumption.

With dual 1″ Male BSP threaded connections, a heavy-duty brass construction, and the flexibility to be installed in both horizontal and vertical orientations, this balancing valve delivers long-term reliability and straightforward installation for any light commercial or domestic hydronic project.

Key Features & Benefits

  • Instant Visual Monitoring: Built-in mechanical flow indicator offers direct, real-time flow rate readings at a glance.

  • Precise Balancing: Integrated regulating valve allows for exact, micro-adjusted system calibration.

  • Durable Construction: Heavy-duty, corrosion-resistant brass body designed to withstand high operational temperatures and pressures.

  • Versatile Installation: Dual 1″ Male BSP connections; can be mounted horizontally, vertically, or at an angle.

  • System Efficiency: Prevents uneven heating, minimises pump strain, and lowers overall energy bills.

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We want to make sure your order gets to you as quickly and smoothly as possible.

  • Next Day Delivery (England): £9.99

  • Next Day AM Delivery


Orders placed before 12:00 pm qualify for next working day delivery, with drop-offs generally scheduled between 8:00 am and 5:30 pm.

  • Pallet Delivery (Mainland UK): £72.00

    Required for heavier or bulkier items.

Important Cut-Off Times & Weekends Any orders placed after 12:00 pm on a Friday—along with orders made over the weekend—will be packed and dispatched on Monday for delivery on Tuesday. Please also keep in mind that bank holidays are classed as non-working days when calculating your delivery dates.

Need a Custom Option? If you need a specific timed delivery, have a non-mainland address, or require something outside our standard shipping options, get in touch with our team and we will do our best to help.

Please note: While we work closely with trusted couriers to ensure reliable, on-time arrivals, rare delays can occasionally happen. We always advise having your physical materials on-site before booking tradespeople to avoid any unexpected downtime or costs.

Get in Touch

If you have any questions about your delivery or need tracking assistance, our team is ready to help:

  • Email: sales@radiantcontrol.co.uk

  • Phone: 01530 519666

  • Opening Hours: Monday to Friday, 8:30 am – 4:30 pm

Trade Accounts

Are you a regular customer with a buying history, a home builder, installer, or merchant?

We offer trade accounts with exclusive pricing on our range of products as well as a range of services.

Click here to apply for your trade account!

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