27 years ago, Richard Wiederhold started a geyser valve maintenance business in Johannesburg. Through the knowledge and experience gained in manufacturing, Richard discovered that technical polymers are as good as brass but cost way less, and that engineering plastics is the way forward. The business evolved into Advanced Valves, which is now the largest hot water ancillary product manufacturing business in South Africa, and a “Proudly South African” member.

Advanced Valves now has 72 employees assembling over 2 million components a month, to produce 56 000 completed products for the South African market. With growth in market share year on year, Advanced Valves continues to make giant advances in producing the most affordable, highest quality products available in South Africa.

Our Pressure Control Valve is patented and the PCV body is moulded in WRAS approved Nylon PA 66 polymer. Each unit is tested and calibrated to ensure individual quality control with a two-year guarantee. There is no better value for money pressure control geyser valve on the market. Our product range is designed to withstand 10 000 kPa water pressure & 180 degrees Celsius temperature.

Our Vacuum Breakers (AD-VB), Pressure Control Valves (AD-S-400 and AD-S-600), Safety Valves (AD-TP) and Drain Cocks (AD-DR) all have permit to apply the SABS mark and are SACPS approved (listed on the SABS website under the SANS 198 and SANS 1808-53 specifications).


To be recognised as the trusted leader in the manufacturing of hot water cylinder ancillary products in Africa.


To be consistently delivering excellent quality products to our customers, by providing passionate service with pride.


Respect – Respecting ourselves, fellow team members, our company and most importantly our customers at all times.

Honesty – We do not cut corners, deceive the market or live in denial. We are brave in our truthfulness.

Integrity – By doing the right thing in all circumstances, especially when nobody is watching!

Excellence – Striving to be exceptional all the time and doing it right the first time, every time!

Team Work – Together each achieves more / our team is more valuable than any individual and their abilities or skills.

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