S&R
The S&R product group offers safety valves for heating technology. These comply with the standards DIN EN ISO 4126-1, DIN 4751 part 2 as well as TRD 721.
- Standardized heating safety valve
- Suitable for steam generators up to 1 bar overpressure
- Suitable for water heating systems up to 120 °C
![LESER S&R Pressure Relief Valve S&R Pressure Relief Valve from LESER](/-/media/images/01_products/09_sr-valves/leser-heater-valve-heizungsventil-safety-valve-sicherheitsventil.png?h=1060&w=500&hash=D23F203F35F977EF722D89B9DBC45B92)