S&R Safety valves for heating systems
Technical specifications
| Technical specifications CLEAN SERVICE valves | |
| Nominal Diameter at Inlet | DN 20 - DN 150 | 3/4" - 6" |
| Actual Orifice Diameter d₀ | 13 mm - 125 mm | 0.512 in - 4.921 in |
| Actual Orifice Area A₀ | 133 mm² - 12.272 mm² | 0.206 in² - 19.022 in² |
| Pressure | 0.5 bar - 10 bar | 7.3 psig - 580 psig |
| Temperature (in accordance with DIN EN) | -45 °C to 150 °C | -49 °F to 302 °F |
| Body Material | 0.6025, 0.7043, 1.0619, 430F | Cast steel, Ductile Gr. 60-40-18, SA 216 WCB, 1.4104 |
| Valve Connection | Flange in accordance with DIN, threads |
| Bellows Material (optional) | Elastomer |
| Load Type | Spring-loaded |
Benefits
- Standardized heating safety valve
- Suitable for steam generators up to 1 bar overpressure
- Suitable for water heating systems up to 120 °C
- Complies with DIN EN ISO 4126-1, DIN 4751 Part 2 and TRD 721 standards
Applications
- Heating and Air conditioning
Engineering services
- VALVESTAR® - Sizing of your LESER Safety Valves
- VALVESTAR® is the LESER-developed program for sizing safety valves. It takes into account all leading global standards and codes. In addition to calculation and sizing, the program also offers variable, individually-arranged reports for technical documentation and archiving.
- Сonvenient service for the selection of spare parts