Plumbing Africa Directory 2023 | Page 54

BY : Rory Macnamara

Valves are known by different names and this can be a cause of confusion .

Nonetheless , we provide the matrix as a reference to the names and applicable National Standards ( SANS ). Manufacturers have provided and confirmed the information . For ease of reference each manufacturer is colour-coded by name and cross .

It must be noted that all information was supplied by the manufacturer /

* Full description of the SANS designation and title :

198 Functional-control valves and safety valves for domestic hot and cold-water supply systems

226 Water taps ( metallic bodies ) shut-off valve 752 Float valves 776 Copper alloy gate valves – heavy duty 1056-1 Ball valves Part 1 Fire safe valves 1056-2 Ball valves Part 2 heavy-duty valves ( not fire safe ) 1056-3 Ball valves Part 3 light-duty valves ( not fire safe ) 16135 Industrial valves – ball valves of thermoplastic materials distributor and is published in good faith . Refer to our disclaimer . Please note all componentry must comply with the standard requirements .

End users / specifiers still retain responsibility for checking the SANS Mark certificate and the supporting documents that are an integral part of the certificate .

Where there is no SANS designation , we still list the five valves on the matrix .

* Full description of the SANS designation and title :

1240 Automatic shut-off flush valves for water closets and urinals

1299 Tempering valves for hot water storage systems 1480 Single control mixer taps 1509 Flush valves for WC flushing cisterns 1532 Vent valves for drainage installations

1808-9 Water supply and distribution components – Part 9 – Metering taps and valves ( metallic bodies )

1808-10 Water supply and distribution components – Part 10 – Copper alloy check valves ( spring loaded )

** for the sake of clarity , we list Domestic in the HWS heading . Commercial and Industrial are profit and manufacturing respectively with different requirements . VALVE TYPES FOR PLUMBING AND WATER ––

TYPE

* SANS DESIGNATION

Pressure Control Valve ( PCV ) SANS 198

** HOT WATER STORAGE – Domestic

X X X X X

WATER SUPPLY domestic

X X X X X

WATER SUPPLY commercial

X X X Pressure Reducing Valve ( PRV ) SANS 198 X X X X X X X X X

WATER SUPPLY industrial

X X X

WATER SUPPLY Fire

Safety valve or T & P Valve SANS 198 X X X X X X X Vacuum Breaker SANS 198

X X X X X

Expansion Relief Valve SANS 198 X X X X X X X X X X X

Industrial valves – Ball valve of thermoplastic Materials

X X

SANS 16135 X X X

Thermostatic Tempering Valve SANS 1299 X X X X X X Float Valve SANS 752 X Flush Valves – automatic SANS 1240 X Single Control Mixer Taps SANS 1480 X X Vent Valves SANS 1532 X Metering Taps & Valves SANS 1808 / 9 X

X

Reduced Pressure Zone Backflow Preventer

SANS 1808 / 15 X X X X X

52 Plumbing Africa DIRECTORY 2023 www . plumbingafrica . co . za