Ball Valves

Valves FAQs

How do you distinguish between gas and water valves?

The colour of the handles on Bromic ball valves are used to distinguish their usage between gas and water.

Valves with a yellow handle are gas valves and are AGA-approved for use with Natural Gas and LPG.

Valves with a green handle are water valves and are WaterMark-approved for use with potable water. Almost all of Bromic's green handle valves are also AGA-approved for use with gas, with exceptions such as 1210437.

Refer to product information to review if a valve is compatible with gas and/or water pipelines.

When should a ball valve be used instead of a butterfly valve?

Both ball valves and butterfly valves are valves that are used to control the flow of water or gas in a pipe system. Internally, butterfly valves consist of a thin disk and ball valves consist of a sphere-like disc that rotates as the handle is turned.

Whilst butterfly valves are usually recommended for use with larger pipe diameters, ball valves provide a tighter seal and are hence suitable for high-temperature and pressure services. Bromic supplies a wide range of ball valves with different thread connections and lever types for gas and water applications.

Please note: Butterfly valves should not be confused with butterfly handles (also known as T handles).

What size air admittance valve do I need?

To choose the right air admittance valve, you'll need to know the fixture unit of the pipe and the airflow capacity required. Read more

Air Admittance Valve 110mm
(SKU: 1210702)
Air Admittance Valve with Adaptor for 32-40-50mm
(SKU: 1210701)
Recommended ApplicationDischarge stacks up to 45 metres or 10 storeys high32mm and 40mm for use as a connection to waste pipes to prevent water loss from trap seals. 50mm is for use on branch discharge pipes
Connection110mm push-fit connection
82mm solvent cement connection
32mm, 40mm and 50mm solvent cement connection
Airflow Capacity108.32l/s10.1l/s
Maximum Unit LoadingPipes – 19,799 fixture units
Stacks – 1230 fixture units
Pipes - 172 fixture units
Stacks – 10 fixture units
Temperature Range-20°C to +60°C-20°C to +60°C
A detailed comparison between Bromic Air Admittance Valves.

What's the difference between a push-fit connection and a solvent-cement connection?

Push-fit pipes are quick and easy to install and can be easily separated. Solvent-weld pipes use solvent cement to make a strong joint, making them suitable for permanent fixtures.

Push-fit connections connect with push-fit pipes and solvent-cement connections connect with solvent-weld pipes. Some valves come with a removable adaptor that allows it to fit either connection, for example on the Bromic Air Admittance Valve 110mm.

Frequently Asked Questions for Valves including AAVs (Air Admittance Valves)
Valves - Frequently Asked Questions

Ball Valves

Control gas and water flow in pipelines with our high quality brass ball valves. We offer brass ball valves suitable for LPG, natural gas and water. Available in various connections and handle types including butterfly handle and lever handle.

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Bromic Plumbing & Gas