Siamp Storm 33A Syphon Flushing Valve

The Siamp Storm 33A flush valve is a versatile and reliable option for a variety of toilet cisterns, thanks to its height adjustable design and two-part design that allows for easy servicing without removing the cistern. It is a popular choice among leading manufacturers such as Twyfords and Vitra, and is also supplied installed within many DIY store toilet cisterns.

Siamp is a worldwide leader in innovation and modern technical solutions in the sanitary market. Every product designed and manufactured by Siamp encompasses their main principles of efficiency, viability, and sustainability:

Can be installed into plastic or ceramic cisterns​

Single flush, full cistern discharge

Actuation effort below 20 Newton

For lid holes ranging from 18 to 50mm, with or without collar depending on diameter

Adjustable stirrup that fixes the cistern lid and enables a non alignment position

Overflow can be cut in increments of 5mm

​High flush rate of 3.5l/sFoam pan seal supplied for compensating pan irregularity