Flow Limiting Cartridge

£2.05 £2.46 inc. vat


Cartridge for installation into AFL Valves. All sizes of AFL Valve use the same size Cartridge. There are several Cartridges available: Automatic Flow Limiting, Auto Flow Limiting & Strainer, Strainer only. All Cartridges have identical external dimensions and incorporate a stainless steel Cross Pin, which enables easy extraction with long nose pliers. Where space prohibits pliers, a wire hook can be used instead. There is no Circlip required because the “on” position prevents the Cartridge moving. AFL CArtridges limit the flow by automatically varying the size of the orifice of the Cartridge. As the flow approaches the specified rate, the orifice contracts like a camera lens. The regular flexing tof the cartridge material avoids build-up of scale and allows small particles to pass through. The properties have been tested over 20 years and are stable up to 65 C. Valves should be installed, the system flushed and chlorinated before Cartridges are fitted. Cartridges can be installed with system fully pressurised.


AFL Valves may be used on hot and cold water plumbing systems and clean chilled water for A/C fan coil units- not suitable for heating. Valves should be accessible and fitted at points of use. See AFL Cartridge Datasheet. Examples include- Wash Basin,

Product Specification
  • Backflow Prevention No
  • Integral Strainer No
Specification Clause

Every water outlet or appliance shall have a combined Servicing and Automatic Flow Limiting Valve to automatically limit the flow of hot and cold water – model AFL – as manufactured and distributed by Arrow Valves Ltd – Tel 01442 823123 www.arrowvalves.co.uk. A flow limiting cartridge[1] shall be installed through the side port – after fitting and flushing pipes in accordance with the BS6700 Table 3. The Cartridge flow rate shall be as indicated in the table below and a colour coded identity disc fitted after installation of the Cartridge. The valves shall be nickel-plated and fitted with a green aluminium arrow lever. [2],[3] Every WC shall be fitted with an AFL Servicing Valve fitted with a strainer only cartridge (no flow limiter) in accordance with clauses G11.1 & R25.6 respectively.

Insert as required
[1] “incorporating a 260 micron strainer”
[2] The valve assembly shall incorporate a double check valve assembly (ED device).
[3] The valve assembly shall incorporate a single check valve assembly (EA device).

Recommended Flow Rates – Based on BS6700

Hand basin / Washbasin

Kitchen Sink G1/2″

Kitchen Sink G3/4″

WC Flushing Trough (per jet)

Shower – Single Feed (refer to “Equi-Flow”)


Bath G3/4″

WC Cistern

260 µm Strainer
Washing Machine1


Note – 1. The manufacturer should be consulted for required flow rates

Data Sheets


aflommanual-1.pdf (393.75 KB)


Installation Guide

aflommanual.docx (271.34 KB)